index.html 67.6 KB
Newer Older
amandaghassaei's avatar
amandaghassaei committed
1
2
3
4
5
6
7
8
9
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Origami Simulator</title>

    <link href="dependencies/bootstrap.min.css" rel="stylesheet" type="text/css"/>
    <link rel="stylesheet" type="text/css" href="dependencies/flat-ui.min.css"/>
    <link rel="stylesheet" type="text/css" href="dependencies/jquery-ui.min.css"/>
amandaghassaei's avatar
nav    
amandaghassaei committed
10
11
12
    <link rel="stylesheet" type="text/css" href="css/nav.css"/>
    <link rel="stylesheet" type="text/css" href="css/main.css"/>

amandaghassaei's avatar
amandaghassaei committed
13
14
15
16
17
18
19
20
21
22
23
    <script>
      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
      })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

      ga('create', 'UA-86531114-8', 'auto');
      ga('send', 'pageview');

    </script>

amandaghassaei's avatar
amandaghassaei committed
24

amandaghassaei's avatar
amandaghassaei committed
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
    <script id="vertexShader" type="x-shader/x-vertex">
        attribute vec2 a_position;
        void main() {
           gl_Position = vec4(a_position, 0, 1);
        }
    </script>

    <script id="packToBytesShader" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_floatTextureDim;
        uniform sampler2D u_floatTexture;
        uniform float u_vectorLength;
        float shift_right (float v, float amt) {
            v = floor(v) + 0.5;
            return floor(v / exp2(amt));
        }
        float shift_left (float v, float amt) {
            return floor(v * exp2(amt) + 0.5);
        }
        float mask_last (float v, float bits) {
            return mod(v, shift_left(1.0, bits));
        }
        float extract_bits (float num, float from, float to) {
            from = floor(from + 0.5); to = floor(to + 0.5);
            return mask_last(shift_right(num, from), to - from);
        }
        vec4 encode_float (float val) {
            if (val == 0.0) return vec4(0, 0, 0, 0);
            float sign = val > 0.0 ? 0.0 : 1.0;
            val = abs(val);
            float exponent = floor(log2(val));
            float biased_exponent = exponent + 127.0;
            float fraction = ((val / exp2(exponent)) - 1.0) * 8388608.0;
            float t = biased_exponent / 2.0;
            float last_bit_of_biased_exponent = fract(t) * 2.0;
            float remaining_bits_of_biased_exponent = floor(t);
            float byte4 = extract_bits(fraction, 0.0, 8.0) / 255.0;
            float byte3 = extract_bits(fraction, 8.0, 16.0) / 255.0;
            float byte2 = (last_bit_of_biased_exponent * 128.0 + extract_bits(fraction, 16.0, 23.0)) / 255.0;
            float byte1 = (sign * 128.0 + remaining_bits_of_biased_exponent) / 255.0;
            return vec4(byte4, byte3, byte2, byte1);
        }
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            float textureXcoord = floor((fragCoord.x - 0.5)/u_vectorLength+0.0001) + 0.5;
            vec4 data = texture2D(u_floatTexture, vec2(textureXcoord, fragCoord.y)/u_floatTextureDim);
            int textureIndex = int(floor(mod(fragCoord.x-0.5+0.0001, u_vectorLength)));
            if (textureIndex == 0) gl_FragColor = encode_float(data[0]);
            else if (textureIndex == 1) gl_FragColor = encode_float(data[1]);
            else if (textureIndex == 2) gl_FragColor = encode_float(data[2]);
            else if (textureIndex == 3) gl_FragColor = encode_float(data[3]);
        }
    </script>

    <script id="zeroTexture" type="x-shader/x-fragment">
amandaghassaei's avatar
amandaghassaei committed
80
        precision mediump float;
amandaghassaei's avatar
amandaghassaei committed
81
        void main(){
amandaghassaei's avatar
amandaghassaei committed
82
            gl_FragColor = vec4(0.0);
amandaghassaei's avatar
amandaghassaei committed
83
84
        }
    </script>
amandaghassaei's avatar
amandaghassaei committed
85
86
87
88
89
90
91
92
93
94
95
    <script id="zeroThetaTexture" type="x-shader/x-fragment">
        precision mediump float;
        uniform sampler2D u_theta;
        uniform vec2 u_textureDimCreases;
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDimCreases;
            vec4 theta = texture2D(u_theta, scaledFragCoord);
            gl_FragColor = vec4(0.0, 0.0, theta[2], theta[3]);
        }
    </script>
96
97
98
99
100
101
102
103
104
105
106
107
    <script id="centerTexture" type="x-shader/x-fragment">
        precision mediump float;
        uniform sampler2D u_lastPosition;
        uniform vec2 u_textureDim;
        uniform vec3 u_center;
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDim;
            vec3 position = texture2D(u_lastPosition, scaledFragCoord).xyz;
            gl_FragColor = vec4(position-u_center, 0.0);
        }
    </script>
amandaghassaei's avatar
amandaghassaei committed
108
109
110
111
112
113
114
115
116
117
118
119
120

    <script id="positionCalcShader" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_textureDim;
        uniform float u_dt;
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_velocity;
        uniform sampler2D u_mass;

        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDim;

amandaghassaei's avatar
amandaghassaei committed
121
122
            vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;

amandaghassaei's avatar
amandaghassaei committed
123
124
            float isFixed = texture2D(u_mass, scaledFragCoord).y;
            if (isFixed == 1.0){
amandaghassaei's avatar
amandaghassaei committed
125
                gl_FragColor = vec4(lastPosition, 0.0);
amandaghassaei's avatar
amandaghassaei committed
126
127
128
                return;
            }

amandaghassaei's avatar
amandaghassaei committed
129
130
131
            vec4 velocityData = texture2D(u_velocity, scaledFragCoord);
            vec3 position = velocityData.xyz*u_dt + lastPosition;
            gl_FragColor = vec4(position, velocityData.a);//velocity.a has error info
amandaghassaei's avatar
amandaghassaei committed
132
133
134
135
136
137
        }
    </script>

    <script id="velocityCalcShader" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_textureDim;
amandaghassaei's avatar
amandaghassaei committed
138
        uniform vec2 u_textureDimEdges;
amandaghassaei's avatar
amandaghassaei committed
139
140
141
        uniform vec2 u_textureDimFaces;
        uniform vec2 u_textureDimCreases;
        uniform vec2 u_textureDimNodeCreases;
amandaghassaei's avatar
amandaghassaei committed
142
        uniform vec2 u_textureDimNodeFaces;
amandaghassaei's avatar
eod    
amandaghassaei committed
143
        uniform float u_creasePercent;
amandaghassaei's avatar
amandaghassaei committed
144
        uniform float u_dt;
amandaghassaei's avatar
amandaghassaei committed
145
        uniform float u_axialStiffness;
amandaghassaei's avatar
amandaghassaei committed
146
147
148
149
150
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_lastVelocity;
        uniform sampler2D u_originalPosition;
        uniform sampler2D u_externalForces;
        uniform sampler2D u_mass;
amandaghassaei's avatar
amandaghassaei committed
151
        uniform sampler2D u_meta;//[beamsIndex, numBeam, nodeCreaseMetaIndex, numCreases]
amandaghassaei's avatar
amandaghassaei committed
152
        uniform sampler2D u_beamMeta;//[k, d, length, otherNodeIndex]
amandaghassaei's avatar
amandaghassaei committed
153
        uniform sampler2D u_creaseMeta;//[k, d, targetTheta]
amandaghassaei's avatar
amandaghassaei committed
154
        uniform sampler2D u_nodeCreaseMeta;//[creaseIndex, nodeIndex, -, -]
amandaghassaei's avatar
amandaghassaei committed
155
156
        uniform sampler2D u_normals;
        uniform sampler2D u_theta;//[theta, z, normal1Index, normal2Index]
157
        uniform sampler2D u_creaseGeo;//[h1, h2, coef1, coef2]
amandaghassaei's avatar
amandaghassaei committed
158
159
160
        uniform sampler2D u_meta2;//[nodesFaceIndex, numFaces]
        uniform sampler2D u_nodeFaceMeta;//[faceIndex, a, b, c]
        uniform sampler2D u_nominalTriangles;//[angleA, angleB, angleC]
amandaghassaei's avatar
amandaghassaei committed
161

amandaghassaei's avatar
amandaghassaei committed
162
163
164
165
166
167
        vec4 getFromArray(float index1D, vec2 dimensions, sampler2D tex){
            vec2 index = vec2(mod(index1D, dimensions.x)+0.5, floor(index1D/dimensions.x)+0.5);
            vec2 scaledIndex = index/dimensions;
            return texture2D(tex, scaledIndex);
        }

amandaghassaei's avatar
amandaghassaei committed
168
169
170
171
172
173
        vec3 getPosition(float index1D){
            vec2 index = vec2(mod(index1D, u_textureDim.x)+0.5, floor(index1D/u_textureDim.x)+0.5);
            vec2 scaledIndex = index/u_textureDim;
            return texture2D(u_lastPosition, scaledIndex).xyz + texture2D(u_originalPosition, scaledIndex).xyz;
        }

amandaghassaei's avatar
amandaghassaei committed
174
175
176
177
178
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDim;

            vec2 mass = texture2D(u_mass, scaledFragCoord).xy;
amandaghassaei's avatar
amandaghassaei committed
179
            if (mass[1] == 1.0){//fixed
amandaghassaei's avatar
amandaghassaei committed
180
                gl_FragColor = vec4(0.0);
amandaghassaei's avatar
amandaghassaei committed
181
182
183
184
185
186
187
188
                return;
            }
            vec3 force = texture2D(u_externalForces, scaledFragCoord).xyz;
            vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;
            vec3 lastVelocity = texture2D(u_lastVelocity, scaledFragCoord).xyz;
            vec3 originalPosition = texture2D(u_originalPosition, scaledFragCoord).xyz;

            vec4 neighborIndices = texture2D(u_meta, scaledFragCoord);
amandaghassaei's avatar
amandaghassaei committed
189
            vec4 meta = texture2D(u_meta, scaledFragCoord);
amandaghassaei's avatar
amandaghassaei committed
190
            vec2 meta2 = texture2D(u_meta2, scaledFragCoord).xy;
amandaghassaei's avatar
amandaghassaei committed
191

amandaghassaei's avatar
amandaghassaei committed
192
193
            float nodeError = 0.0;

amandaghassaei's avatar
ui    
amandaghassaei committed
194
            for (int j=0;j<100;j++){//for all beams (up to 100, had to put a const int in here)
amandaghassaei's avatar
amandaghassaei committed
195
196
                if (j >= int(meta[1])) break;

amandaghassaei's avatar
amandaghassaei committed
197
                vec4 beamMeta = getFromArray(meta[0]+float(j), u_textureDimEdges, u_beamMeta);
amandaghassaei's avatar
amandaghassaei committed
198
199

                float neighborIndex1D = beamMeta[3];
amandaghassaei's avatar
amandaghassaei committed
200
201
202
203
204
205
206
207
                vec2 neighborIndex = vec2(mod(neighborIndex1D, u_textureDim.x)+0.5, floor(neighborIndex1D/u_textureDim.x)+0.5);
                vec2 scaledNeighborIndex = neighborIndex/u_textureDim;
                vec3 neighborLastPosition = texture2D(u_lastPosition, scaledNeighborIndex).xyz;
                vec3 neighborLastVelocity = texture2D(u_lastVelocity, scaledNeighborIndex).xyz;
                vec3 neighborOriginalPosition = texture2D(u_originalPosition, scaledNeighborIndex).xyz;

                vec3 nominalDist = neighborOriginalPosition-originalPosition;
                vec3 deltaP = neighborLastPosition-lastPosition+nominalDist;
amandaghassaei's avatar
amandaghassaei committed
208
209
                float deltaPLength = length(deltaP);
                deltaP -= deltaP*(beamMeta[2]/deltaPLength);
amandaghassaei's avatar
amandaghassaei committed
210
                nodeError += abs(deltaPLength/length(nominalDist) - 1.0);
amandaghassaei's avatar
amandaghassaei committed
211
212
                vec3 deltaV = neighborLastVelocity-lastVelocity;

amandaghassaei's avatar
amandaghassaei committed
213
                vec3 _force = deltaP*beamMeta[0] + deltaV*beamMeta[1];
amandaghassaei's avatar
amandaghassaei committed
214
215
                force += _force;
            }
amandaghassaei's avatar
amandaghassaei committed
216
            nodeError /= meta[1];
amandaghassaei's avatar
amandaghassaei committed
217
218
219
220

            for (int j=0;j<100;j++){//for all creases (up to 100, had to put a const int in here)
                if (j >= int(meta[3])) break;

amandaghassaei's avatar
amandaghassaei committed
221
                vec4 nodeCreaseMeta = getFromArray(meta[2]+float(j), u_textureDimNodeCreases, u_nodeCreaseMeta);
amandaghassaei's avatar
amandaghassaei committed
222

amandaghassaei's avatar
amandaghassaei committed
223
                float creaseIndex1D = nodeCreaseMeta[0];
amandaghassaei's avatar
amandaghassaei committed
224
225
226
227
228
                vec2 creaseIndex = vec2(mod(creaseIndex1D, u_textureDimCreases.x)+0.5, floor(creaseIndex1D/u_textureDimCreases.x)+0.5);
                vec2 scaledCreaseIndex = creaseIndex/u_textureDimCreases;

                vec4 thetas = texture2D(u_theta, scaledCreaseIndex);
                vec3 creaseMeta = texture2D(u_creaseMeta, scaledCreaseIndex).xyz;//[k, d, targetTheta]
229
                vec4 creaseGeo = texture2D(u_creaseGeo, scaledCreaseIndex);//[h1, h2, coef1, coef2]
amandaghassaei's avatar
amandaghassaei committed
230
                if (creaseGeo[0]< 0.0) continue;//crease disabled bc it has collapsed too much
amandaghassaei's avatar
amandaghassaei committed
231

amandaghassaei's avatar
amandaghassaei committed
232
233
234
                float targetTheta = creaseMeta[2] * u_creasePercent;
                float angForce = creaseMeta[0]*(targetTheta-thetas[0]);// + creaseMeta[1]*thetas[1];

amandaghassaei's avatar
amandaghassaei committed
235
                float nodeNum = nodeCreaseMeta[1];//1, 2, 3, 4
236

237
                if (nodeNum > 2.0){//crease reaction, node is on a crease
amandaghassaei's avatar
amandaghassaei committed
238

amandaghassaei's avatar
amandaghassaei committed
239
                    //node #1
amandaghassaei's avatar
amandaghassaei committed
240
                    vec3 normal1 = getFromArray(thetas[2], u_textureDimFaces, u_normals).xyz;
amandaghassaei's avatar
amandaghassaei committed
241
242

                    //node #2
amandaghassaei's avatar
amandaghassaei committed
243
                    vec3 normal2 = getFromArray(thetas[3], u_textureDimFaces, u_normals).xyz;
amandaghassaei's avatar
amandaghassaei committed
244

245
246
                    float coef1 = creaseGeo[2];
                    float coef2 = creaseGeo[3];
amandaghassaei's avatar
amandaghassaei committed
247

248
249
250
251
                    if (nodeNum == 3.0){
                        coef1 = 1.0-coef1;
                        coef2 = 1.0-coef2;
                    }
252
253

                    vec3 _force = -angForce*(coef1/creaseGeo[0]*normal1 + coef2/creaseGeo[1]*normal2);
amandaghassaei's avatar
amandaghassaei committed
254
                    force += _force;
255

amandaghassaei's avatar
amandaghassaei committed
256
                } else {
257

amandaghassaei's avatar
amandaghassaei committed
258
                    float normalIndex1D = thetas[2];//node #1
259
260
                    float momentArm = creaseGeo[0];//node #1
                    if (nodeNum == 2.0) {
amandaghassaei's avatar
amandaghassaei committed
261
                        normalIndex1D = thetas[3];//node #2
262
                        momentArm = creaseGeo[1];//node #2
amandaghassaei's avatar
amandaghassaei committed
263
                    }
amandaghassaei's avatar
amandaghassaei committed
264
265

                    vec3 normal = getFromArray(normalIndex1D, u_textureDimFaces, u_normals).xyz;
amandaghassaei's avatar
amandaghassaei committed
266
267
268

                    vec3 _force = angForce/momentArm*normal;
                    force += _force;
amandaghassaei's avatar
eod    
amandaghassaei committed
269
                }
amandaghassaei's avatar
amandaghassaei committed
270
271
272
273
274
275
            }

            for (int j=0;j<100;j++){//for all faces (up to 100, had to put a const int in here)
                if (j >= int(meta2[1])) break;

                vec4 faceMeta = getFromArray(meta2[0]+float(j), u_textureDimNodeFaces, u_nodeFaceMeta);//[face index, a, b, c]
amandaghassaei's avatar
amandaghassaei committed
276
277
278
279
280
                vec3 nominalAngles = getFromArray(faceMeta[0], u_textureDimFaces, u_nominalTriangles).xyz;//[angA, angB, angC]

                int faceIndex = 0;
                if (faceMeta[2] < 0.0) faceIndex = 1;
                if (faceMeta[3] < 0.0) faceIndex = 2;
amandaghassaei's avatar
amandaghassaei committed
281
282

                //get node positions
amandaghassaei's avatar
amandaghassaei committed
283
284
285
                vec3 a = faceIndex == 0 ? lastPosition+originalPosition : getPosition(faceMeta[1]);
                vec3 b = faceIndex == 1 ? lastPosition+originalPosition : getPosition(faceMeta[2]);
                vec3 c = faceIndex == 2 ? lastPosition+originalPosition : getPosition(faceMeta[3]);
amandaghassaei's avatar
amandaghassaei committed
286
287

                //calc angles
amandaghassaei's avatar
amandaghassaei committed
288
289
290
                vec3 ab = b-a;
                vec3 ac = c-a;
                vec3 bc = c-b;
amandaghassaei's avatar
amandaghassaei committed
291

amandaghassaei's avatar
amandaghassaei committed
292
293
294
295
                float lengthAB = length(ab);
                float lengthAC = length(ac);
                float lengthBC = length(bc);

amandaghassaei's avatar
amandaghassaei committed
296
297
298
                float tol = 0.0000001;
                if (abs(lengthAB) < tol || abs(lengthBC) < tol || abs(lengthAC) < tol) continue;

amandaghassaei's avatar
amandaghassaei committed
299
300
301
302
303
304
305
                ab /= lengthAB;
                ac /= lengthAC;
                bc /= lengthBC;

                vec3 angles = vec3(acos(dot(ab, ac)),
                    acos(-1.0*dot(ab, bc)),
                    acos(dot(ac, bc)));
amandaghassaei's avatar
amandaghassaei committed
306
307
308
                vec3 anglesDiff = nominalAngles-angles;

                vec3 normal = getFromArray(faceMeta[0], u_textureDimFaces, u_normals).xyz;
amandaghassaei's avatar
amandaghassaei committed
309

amandaghassaei's avatar
amandaghassaei committed
310
                //calc forces
amandaghassaei's avatar
amandaghassaei committed
311
                anglesDiff *= u_axialStiffness/100.0;
amandaghassaei's avatar
amandaghassaei committed
312
                if (faceIndex == 0){//a
amandaghassaei's avatar
amandaghassaei committed
313
314
315
316
317
                    vec3 normalCrossAC = cross(normal, ac)/lengthAC;
                    vec3 normalCrossAB = cross(normal, ab)/lengthAB;
                    force -= anglesDiff[0]*(normalCrossAC - normalCrossAB);
                    force -= anglesDiff[1]*normalCrossAB;
                    force += anglesDiff[2]*normalCrossAC;
amandaghassaei's avatar
amandaghassaei committed
318
                } else if (faceIndex == 1){
amandaghassaei's avatar
amandaghassaei committed
319
320
321
322
323
                    vec3 normalCrossAB = cross(normal, ab)/lengthAB;
                    vec3 normalCrossBC = cross(normal, bc)/lengthBC;
                    force -= anglesDiff[0]*normalCrossAB;
                    force += anglesDiff[1]*(normalCrossAB + normalCrossBC);
                    force -= anglesDiff[2]*normalCrossBC;
amandaghassaei's avatar
amandaghassaei committed
324
                } else if (faceIndex == 2){
amandaghassaei's avatar
amandaghassaei committed
325
326
327
328
329
                    vec3 normalCrossAC = cross(normal, ac)/lengthAC;
                    vec3 normalCrossBC = cross(normal, bc)/lengthBC;
                    force += anglesDiff[0]*normalCrossAC;
                    force -= anglesDiff[1]*normalCrossBC;
                    force += anglesDiff[2]*(normalCrossBC - normalCrossAC);
amandaghassaei's avatar
amandaghassaei committed
330
                }
amandaghassaei's avatar
amandaghassaei committed
331
332
333

            }

amandaghassaei's avatar
amandaghassaei committed
334
            vec3 velocity = force*u_dt/mass[0] + lastVelocity;
amandaghassaei's avatar
amandaghassaei committed
335
            gl_FragColor = vec4(velocity,nodeError);
amandaghassaei's avatar
amandaghassaei committed
336
337
338
        }
    </script>

amandaghassaei's avatar
amandaghassaei committed
339
    <script id="thetaCalcShader" type="x-shader/x-fragment">
amandaghassaei's avatar
amandaghassaei committed
340
        #define TWO_PI 6.283185307179586476925286766559
amandaghassaei's avatar
amandaghassaei committed
341
        precision mediump float;
amandaghassaei's avatar
amandaghassaei committed
342
        uniform vec2 u_textureDim;
amandaghassaei's avatar
amandaghassaei committed
343
344
345
346
347
        uniform vec2 u_textureDimFaces;
        uniform vec2 u_textureDimCreases;
        uniform sampler2D u_normals;
        uniform sampler2D u_lastTheta;
        uniform sampler2D u_creaseVectors;
amandaghassaei's avatar
amandaghassaei committed
348
349
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_originalPosition;
amandaghassaei's avatar
amandaghassaei committed
350
        uniform float u_dt;
amandaghassaei's avatar
amandaghassaei committed
351

amandaghassaei's avatar
amandaghassaei committed
352
353
354
355
356
357
        vec4 getFromArray(float index1D, vec2 dimensions, sampler2D tex){
            vec2 index = vec2(mod(index1D, dimensions.x)+0.5, floor(index1D/dimensions.x)+0.5);
            vec2 scaledIndex = index/dimensions;
            return texture2D(tex, scaledIndex);
        }

amandaghassaei's avatar
amandaghassaei committed
358
359
360
361
362
363
364
365
        void main(){

            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDimCreases;

            vec4 lastTheta = texture2D(u_lastTheta, scaledFragCoord);

            if (lastTheta[2]<0.0){
amandaghassaei's avatar
amandaghassaei committed
366
                gl_FragColor = vec4(lastTheta[0], 0.0, -1.0, -1.0);
amandaghassaei's avatar
amandaghassaei committed
367
368
369
                return;
            }

amandaghassaei's avatar
amandaghassaei committed
370
371
            vec3 normal1 = getFromArray(lastTheta[2], u_textureDimFaces, u_normals).xyz;
            vec3 normal2 = getFromArray(lastTheta[3], u_textureDimFaces, u_normals).xyz;
amandaghassaei's avatar
amandaghassaei committed
372

amandaghassaei's avatar
amandaghassaei committed
373
            float dotNormals = dot(normal1, normal2);//normals are already normalized, no need to divide by length
amandaghassaei's avatar
amandaghassaei committed
374
375
            if (dotNormals < -1.0) dotNormals = -1.0;
            else if (dotNormals > 1.0) dotNormals = 1.0;
amandaghassaei's avatar
amandaghassaei committed
376
377
378
379
380
381
382
383
384

            vec2 creaseVectorIndices = texture2D(u_creaseVectors, scaledFragCoord).xy;
            vec2 creaseNodeIndex = vec2(mod(creaseVectorIndices[0], u_textureDim.x)+0.5, floor(creaseVectorIndices[0]/u_textureDim.x)+0.5);
            vec2 scaledNodeIndex = creaseNodeIndex/u_textureDim;
            vec3 node0 = texture2D(u_lastPosition, scaledNodeIndex).xyz + texture2D(u_originalPosition, scaledNodeIndex).xyz;
            creaseNodeIndex = vec2(mod(creaseVectorIndices[1], u_textureDim.x)+0.5, floor(creaseVectorIndices[1]/u_textureDim.x)+0.5);
            scaledNodeIndex = creaseNodeIndex/u_textureDim;
            vec3 node1 = texture2D(u_lastPosition, scaledNodeIndex).xyz + texture2D(u_originalPosition, scaledNodeIndex).xyz;

amandaghassaei's avatar
amandaghassaei committed
385
386
387
388
            //https://math.stackexchange.com/questions/47059/how-do-i-calculate-a-dihedral-angle-given-cartesian-coordinates
            vec3 creaseVector = normalize(node1-node0);
            float x = dotNormals;
            float y = dot(cross(normal1, creaseVector), normal2);
amandaghassaei's avatar
amandaghassaei committed
389

amandaghassaei's avatar
amandaghassaei committed
390
391
            float theta = atan(y, x);

amandaghassaei's avatar
amandaghassaei committed
392
            float diff = theta-lastTheta[0];
amandaghassaei's avatar
vive    
amandaghassaei committed
393
            float origDiff = diff;
amandaghassaei's avatar
amandaghassaei committed
394
            if (diff < -5.0) {
amandaghassaei's avatar
amandaghassaei committed
395
                diff += TWO_PI;
amandaghassaei's avatar
amandaghassaei committed
396
            } else if (diff > 5.0) {
amandaghassaei's avatar
amandaghassaei committed
397
                diff -= TWO_PI;
amandaghassaei's avatar
amandaghassaei committed
398
            }
amandaghassaei's avatar
vive    
amandaghassaei committed
399
            theta = lastTheta[0] + diff;
amandaghassaei's avatar
amandaghassaei committed
400
            gl_FragColor = vec4(theta, diff, lastTheta[2], lastTheta[3]);//[theta, w, normal1Index, normal2Index]
amandaghassaei's avatar
amandaghassaei committed
401
402
        }
    </script>
amandaghassaei's avatar
amandaghassaei committed
403
404
405
406
407
408
409
410
411

    <script id="normalCalc" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_textureDim;
        uniform vec2 u_textureDimFaces;
        uniform sampler2D u_faceVertexIndices;
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_originalPosition;

amandaghassaei's avatar
amandaghassaei committed
412
413
414
415
416
417
        vec3 getPosition(float index1D){
            vec2 index = vec2(mod(index1D, u_textureDim.x)+0.5, floor(index1D/u_textureDim.x)+0.5);
            vec2 scaledIndex = index/u_textureDim;
            return texture2D(u_lastPosition, scaledIndex).xyz + texture2D(u_originalPosition, scaledIndex).xyz;
        }

amandaghassaei's avatar
amandaghassaei committed
418
419
420
421
422
423
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDimFaces;

            vec3 indices = texture2D(u_faceVertexIndices, scaledFragCoord).xyz;

amandaghassaei's avatar
amandaghassaei committed
424
425
426
            vec3 a = getPosition(indices[0]);
            vec3 b = getPosition(indices[1]);
            vec3 c = getPosition(indices[2]);
amandaghassaei's avatar
amandaghassaei committed
427

amandaghassaei's avatar
amandaghassaei committed
428
429
430
            vec3 normal = normalize(cross(b-a, c-a));

            gl_FragColor = vec4(normal, 0.0);
amandaghassaei's avatar
amandaghassaei committed
431
432
        }
    </script>
amandaghassaei's avatar
amandaghassaei committed
433

434
435
436
437
438
439
    <script id="updateCreaseGeo" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_textureDim;
        uniform vec2 u_textureDimCreases;
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_originalPosition;
amandaghassaei's avatar
amandaghassaei committed
440
        uniform sampler2D u_creaseMeta2;
441

amandaghassaei's avatar
amandaghassaei committed
442
443
444
445
446
447
        vec3 getPosition(float index1D){
            vec2 index = vec2(mod(index1D, u_textureDim.x)+0.5, floor(index1D/u_textureDim.x)+0.5);
            vec2 scaledIndex = index/u_textureDim;
            return texture2D(u_lastPosition, scaledIndex).xyz + texture2D(u_originalPosition, scaledIndex).xyz;
        }

448
449
450
451
        void main(){
            vec2 fragCoord = gl_FragCoord.xy;
            vec2 scaledFragCoord = fragCoord/u_textureDimCreases;

amandaghassaei's avatar
amandaghassaei committed
452
            vec4 creaseMeta = texture2D(u_creaseMeta2, scaledFragCoord);
453

amandaghassaei's avatar
amandaghassaei committed
454
455
456
457
            vec3 node1 = getPosition(creaseMeta[0]);
            vec3 node2 = getPosition(creaseMeta[1]);
            vec3 node3 = getPosition(creaseMeta[2]);
            vec3 node4 = getPosition(creaseMeta[3]);
458

amandaghassaei's avatar
amandaghassaei committed
459
            float tol = 0.000001;
amandaghassaei's avatar
amandaghassaei committed
460

461
462
            vec3 creaseVector = node4-node3;
            float creaseLength = length(creaseVector);
amandaghassaei's avatar
amandaghassaei committed
463

amandaghassaei's avatar
amandaghassaei committed
464
465
466
467
            if (abs(creaseLength)<tol) {
                gl_FragColor = vec4(-1);//disable crease
                return;
            }
468
469
470
471
472
473
474
            creaseVector /= creaseLength;

            vec3 vector1 = node1-node3;
            vec3 vector2 = node2-node3;

            float proj1Length = dot(creaseVector, vector1);
            float proj2Length = dot(creaseVector, vector2);
amandaghassaei's avatar
amandaghassaei committed
475
476
477
478

            float dist1 = sqrt(abs(vector1.x*vector1.x+vector1.y*vector1.y+vector1.z*vector1.z-proj1Length*proj1Length));
            float dist2 = sqrt(abs(vector2.x*vector2.x+vector2.y*vector2.y+vector2.z*vector2.z-proj2Length*proj2Length));

amandaghassaei's avatar
amandaghassaei committed
479
480
481
482
            if (dist1<tol || dist2<tol){
                gl_FragColor = vec4(-1);//disable crease
                return;
            }
483

484
            gl_FragColor = vec4(dist1, dist2, proj1Length/creaseLength, proj2Length/creaseLength);
485
486
487
        }
    </script>

amandaghassaei's avatar
amandaghassaei committed
488
489
490
    <script type="text/javascript" src="dependencies/jquery-3.1.1.min.js"></script>
    <script type="text/javascript" src="dependencies/jquery-ui.min.js"></script>
    <script type="text/javascript" src="dependencies/flat-ui.min.js"></script>
amandaghassaei's avatar
amandaghassaei committed
491
    <script type="text/javascript" src="dependencies/three.js"></script>
amandaghassaei's avatar
amandaghassaei committed
492
    <script type="text/javascript" src="dependencies/binary_stl_writer.js"></script>
amandaghassaei's avatar
amandaghassaei committed
493
    <script type="text/javascript" src="dependencies/TrackballControls.js"></script>
amandaghassaei's avatar
amandaghassaei committed
494
495
    <script type="text/javascript" src="dependencies/Projector.js"></script>
    <script type="text/javascript" src="dependencies/SVGRenderer.js"></script>
amandaghassaei's avatar
amandaghassaei committed
496
497
    <script type="text/javascript" src="dependencies/underscore-min.js"></script>
    <script type="text/javascript" src="dependencies/FileSaver.min.js"></script>
amandaghassaei's avatar
amandaghassaei committed
498
    <script type="text/javascript" src="dependencies/SVGLoader.js"></script>
amandaghassaei's avatar
amandaghassaei committed
499
    <script type="text/javascript" src="dependencies/OBJExporter.js"></script>
amandaghassaei's avatar
amandaghassaei committed
500
    <script type="text/javascript" src="dependencies/path-data-polyfill.js"></script>
amandaghassaei's avatar
amandaghassaei committed
501
    <script type="text/javascript" src="dependencies/earcut.js"></script>
amandaghassaei's avatar
amandaghassaei committed
502
    <script type="text/javascript" src="dependencies/numeric-1.2.6.js"></script>
amandaghassaei's avatar
amandaghassaei committed
503

amandaghassaei's avatar
amandaghassaei committed
504
505
506
507
508
509
510
511
    <script type="text/javascript" src="dependencies/EffectComposer.js"></script>
    <script type="text/javascript" src="dependencies/MaskPass.js"></script>
    <script type="text/javascript" src="dependencies/ShaderPass.js"></script>
    <script type="text/javascript" src="dependencies/CopyShader.js"></script>
    <script type="text/javascript" src="dependencies/SSAOShader.js"></script>
    <script type="text/javascript" src="dependencies/Detector.js"></script>
    <script type="text/javascript" src="dependencies/RenderPass.js"></script>

amandaghassaei's avatar
amandaghassaei committed
512
513
514
515
516
    <script type="text/javascript" src="dependencies/WebVR.js"></script>
    <script type="text/javascript" src="dependencies/VREffect.js"></script>
    <script type="text/javascript" src="dependencies/ViveController.js"></script>
    <script type="text/javascript" src="dependencies/VRControls.js"></script>

amandaghassaei's avatar
amandaghassaei committed
517
518
    <script type="text/javascript" src="js/dynamic/GLBoilerplate.js"></script>
    <script type="text/javascript" src="js/dynamic/GPUMath.js"></script>
amandaghassaei's avatar
amandaghassaei committed
519
520
521
    <script type="text/javascript" src="js/controls.js"></script>
    <script type="text/javascript" src="js/threeView.js"></script>
    <script type="text/javascript" src="js/globals.js"></script>
amandaghassaei's avatar
amandaghassaei committed
522
523
    <script type="text/javascript" src="js/node.js"></script>
    <script type="text/javascript" src="js/beam.js"></script>
amandaghassaei's avatar
amandaghassaei committed
524
    <script type="text/javascript" src="js/crease.js"></script>
amandaghassaei's avatar
amandaghassaei committed
525
    <script type="text/javascript" src="js/model.js"></script>
amandaghassaei's avatar
3D ui    
amandaghassaei committed
526
    <script type="text/javascript" src="js/3dUI.js"></script>
amandaghassaei's avatar
amandaghassaei committed
527
    <script type="text/javascript" src="js/staticSolver.js"></script>
amandaghassaei's avatar
eod    
amandaghassaei committed
528
    <script type="text/javascript" src="js/dynamic/dynamicSolver.js"></script>
amandaghassaei's avatar
amandaghassaei committed
529
    <script type="text/javascript" src="js/rigidSolver.js"></script>
amandaghassaei's avatar
amandaghassaei committed
530
    <script type="text/javascript" src="js/pattern.js"></script>
amandaghassaei's avatar
amandaghassaei committed
531
    <script type="text/javascript" src="js/saveSTL.js"></script>
amandaghassaei's avatar
amandaghassaei committed
532
    <script type="text/javascript" src="js/saveFOLD.js"></script>
amandaghassaei's avatar
amandaghassaei committed
533
    <script type="text/javascript" src="js/importer.js"></script>
amandaghassaei's avatar
amandaghassaei committed
534
    <script type="text/javascript" src="js/ViveInterface.js"></script>
amandaghassaei's avatar
amandaghassaei committed
535
536
537
538

    <script type="text/javascript" src="js/main.js"></script>
</head>
<body>
amandaghassaei's avatar
nav    
amandaghassaei committed
539
540
541
542
543
544
545
546
547
548
549
550
551
<nav id="globalNav" class="navbar navbar-inverse navbar-embossed" role="navigation">
    <div class="navbar-header">
        <a id="logo" class="navbar-brand" target="_blank" href="http://cba.mit.edu/">
            <img id="inactiveLogo" src="logo.png"/>
            <img id="activeLogo" src="logo-active.png"/>
        </a>
    </div>
    <div class="collapse navbar-collapse" id="navbar-collapse-01">
        <ul class="nav navbar-nav navbar-left">
            <li class="dropdown navDropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown">File <b class="caret"></b></a>
                <span class="dropdown-arrow"></span>
                <ul class="dropdown-menu">
amandaghassaei's avatar
amandaghassaei committed
552
                    <li><a class="loadFile" href="#">Import... (SVG / FOLD)</a></li>
amandaghassaei's avatar
amandaghassaei committed
553
                    <li><a id="tips" href="#">File Import Tips</a></li>
amandaghassaei's avatar
amandaghassaei committed
554
                    <li class="divider"></li>
amandaghassaei's avatar
amandaghassaei committed
555
                    <li><a id="exportFOLD" href="#">Save Simulation as FOLD...</a></li>
amandaghassaei's avatar
nav    
amandaghassaei committed
556
                    <li><a id="exportSTL" href="#">Save Simulation as STL...</a></li>
amandaghassaei's avatar
amandaghassaei committed
557
                    <li><a id="exportOBJ" href="#">Save Simulation as OBJ...</a></li>
amandaghassaei's avatar
amandaghassaei committed
558
                    <li class="divider"></li>
amandaghassaei's avatar
amandaghassaei committed
559
560
                    <li><a id="saveSVG" href="#">Save Pattern as SVG...</a></li>
                    <!--<li><a id="saveSVGScreenshot" href="#">Save SVG screenshot</a></li>-->
amandaghassaei's avatar
nav    
amandaghassaei committed
561
562
                </ul>
            </li>
amandaghassaei's avatar
amandaghassaei committed
563
564
565
            <li class="dropdown navDropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown">Examples <b class="caret"></b></a>
                <span class="dropdown-arrow"></span>
amandaghassaei's avatar
amandaghassaei committed
566
                <ul class="dropdown-menu" style="min-width: 200px;">
amandaghassaei's avatar
amandaghassaei committed
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
                    <li class="dropdown-submenu">
                        <a tabindex="-1">Origami<span class="pull-right fui-arrow-right"></span></a>
                        <ul class="dropdown-menu">
                            <li><a href="#" class="demo" data-url="Origami/randlettflappingbird.svg">Randlett Flapping Bird</a></li>
                            <li><a href="#" class="demo" data-url="Origami/singlesquaretwist.svg">Square Twist (single)</a></li>
                            <li><a href="#" class="demo" data-url="Origami/squaretwistManyAngles.svg">Square Twist (many angles)</a></li>
                        </ul>
                    </li>
                    <li class="dropdown-submenu">
                        <a tabindex="-1">Tesselations<span class="pull-right fui-arrow-right"></span></a>
                        <ul class="dropdown-menu">
                            <li><a href="#" class="demo" data-url="Tessellations/miura-ori.svg">Miura-Ori</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/waterbomb.svg">Waterbomb (six-crease base)</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/waterbombTwist.svg">Waterbomb (eight-crease base)</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/reschtritessellation.svg">Resch Triangle Tessellation</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/reschbarbell.svg">Resch Barbell Tessellation</a></li>
amandaghassaei's avatar
amandaghassaei committed
583
                            <li><a href="#" class="demo" data-url="Tessellations/honeycomb_333_cp.svg">Lang Honeycomb Tessellation</a></li>
amandaghassaei's avatar
amandaghassaei committed
584
                            <li><a href="#" class="demo" data-url="Tessellations/oval_tessellation_cp.svg">Lang Oval Tessellation</a></li>
amandaghassaei's avatar
amandaghassaei committed
585
                            <li><a href="#" class="demo" data-url="Tessellations/hyperbolic_limit_cp.svg">Lang Hyperbolic Limit</a></li>
amandaghassaei's avatar
amandaghassaei committed
586
587
588
589
590
                        </ul>
                    </li>
                    <li class="dropdown-submenu">
                        <a tabindex="-1">Curved Creases<span class="pull-right fui-arrow-right"></span></a>
                        <ul class="dropdown-menu">
amandaghassaei's avatar
amandaghassaei committed
591
                            <li><a href="#" class="demo" data-url="Curved/huffmanTower.svg">Huffman Tower</a></li>
amandaghassaei's avatar
amandaghassaei committed
592
593
594
595
596
597
598
599
600
601
602
603
604
                        </ul>
                    </li>
                    <li class="divider"></li>
                    <li class="dropdown-submenu">
                        <a tabindex="-1">Problematic Patterns<span class="pull-right fui-arrow-right"></span></a>
                        <ul class="dropdown-menu">
                            <li><a href="#" class="demo" data-url="Origami/hypar.svg">Hypar</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/wedged_double_faced.svg">Lang Wedged Double Faced Tessellation</a></li>
                            <li><a href="#" class="demo" data-url="Tessellations/rattanweaveLang.svg">Lang Rattan Weave</a></li>
                        </ul>
                    </li>
                </ul>
            </li>
amandaghassaei's avatar
amandaghassaei committed
605
606
607
608
609
610
611
            <li class="dropdown navDropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown">View <b class="caret"></b></a>
                <span class="dropdown-arrow"></span>
                <ul class="dropdown-menu">
                    <li><a id="menuVis" href="#">Toggle Menu Visibility</a></li>
                </ul>
            </li>
amandaghassaei's avatar
amandaghassaei committed
612
613
            <li><a id="navPattern" href="#">Pattern</a></li>
            <li><a id="navSimulation" href="#">Simulation</a></li>
amandaghassaei's avatar
nav    
amandaghassaei committed
614
615
            <li><a id="about" class="menuHoverControls" target="_blank" href="#">About</a></li>
        </ul>
amandaghassaei's avatar
amandaghassaei committed
616
617
618
        <!--<form class="navbar-form navbar-right" action="#" role="search">-->
            <!--<div class="form-group">-->
              <!--<div class="input-group">-->
amandaghassaei's avatar
amandaghassaei committed
619
620
621
                <div class="sliderInput floatRight" id="creasePercentNav">
                    <span class="label-slider">Fold Angle : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
                    <!--<input value="" placeholder="" class="form-control" type="text">-->
amandaghassaei's avatar
amandaghassaei committed
622
623
624
625
                </div>
              <!--</div>-->
            <!--</div>-->
        <!--</form>-->
amandaghassaei's avatar
nav    
amandaghassaei committed
626
627
628
629
630
631

    </div><!-- /.navbar-collapse -->
    <input id="fileSelector" type="file">

</nav>

amandaghassaei's avatar
amandaghassaei committed
632
<div  id="threeContainer"></div>
amandaghassaei's avatar
amandaghassaei committed
633
<canvas id="gpuMathCanvas"></canvas>
amandaghassaei's avatar
amandaghassaei committed
634
<div id="controls">
amandaghassaei's avatar
amandaghassaei committed
635
636
637
638
    <div class="sliderInput floatRight" id="creasePercent">
        <span class="label-slider">Fold Angle (-1 to 1) : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
        <input value="" placeholder="" class="form-control" type="text">
    </div><br/><br/>
amandaghassaei's avatar
styling    
amandaghassaei committed
639
640
641
642
    <div id="simButtons" class="alignRight">
        <a href="#" id="start" class="paddingBottom btn btn-lg btn-success">Start Simulation</a>
        <a href="#" id="pause" class="paddingBottom btn btn-lg btn-warning">Pause Simulation</a>
        <a href="#" id="reset" class="paddingBottom btn btn-lg btn-default">Reset</a>
amandaghassaei's avatar
amandaghassaei committed
643
644
        <div id="stepForwardOptions" class="floatRight">
            <a href="#" id="stepForward" class="btn btn-lg btn-default">Step Forward</a>
amandaghassaei's avatar
styling    
amandaghassaei committed
645
            <label>Num Steps:</label> &nbsp;&nbsp;<input id="numSteps" value="100" placeholder="" class="form-control" type="text">
amandaghassaei's avatar
amandaghassaei committed
646
            <br/><br/>
amandaghassaei's avatar
amandaghassaei committed
647
        </div>
amandaghassaei's avatar
amandaghassaei committed
648
    </div>
amandaghassaei's avatar
amandaghassaei committed
649
650
    <!--<b>Simulation Type:</b><br/>-->
    <!--<div class="indent">-->
amandaghassaei's avatar
amandaghassaei committed
651
        <!--<label class="radio">-->
amandaghassaei's avatar
amandaghassaei committed
652
653
            <!--<input name="simType" value="dynamic" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>-->
            <!--Compliant Dynamic Simulation <a class="about floatRight" href="#" id="aboutDynamicSim"><span class="fui-question-circle"></span></a>-->
amandaghassaei's avatar
amandaghassaei committed
654
        <!--</label>-->
amandaghassaei's avatar
amandaghassaei committed
655
656
657
658
659
660
661
662
663
        <!--&lt;!&ndash;<label class="radio">&ndash;&gt;-->
            <!--&lt;!&ndash;<input name="simType" value="static" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>&ndash;&gt;-->
            <!--&lt;!&ndash;Compliant Static Simulation <a class="about floatRight" href="#" id="aboutStaticSim"><span class="fui-question-circle"></span></a>&ndash;&gt;-->
        <!--&lt;!&ndash;</label>&ndash;&gt;-->
        <!--&lt;!&ndash;<label class="radio">&ndash;&gt;-->
            <!--&lt;!&ndash;<input name="simType" value="rigid" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>&ndash;&gt;-->
            <!--&lt;!&ndash;Rigid Static Simulation <a class="about floatRight" href="#" id="aboutRigidSim"><span class="fui-question-circle"></span></a>&ndash;&gt;-->
        <!--&lt;!&ndash;</label>&ndash;&gt;-->
    <!--</div><br/>-->
amandaghassaei's avatar
styling    
amandaghassaei committed
664
665
666
667
668
669
670
671
672
673
674
675
676
    <div class="inlineBlock fullWidth">
        <label class="checkbox floatRight" for="userInteractionEnabled">
            <input id="userInteractionEnabled" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
            Allow User Interaction
        </label>
    </div><br/>
    <div class="fullWidth alignRight">
        <a href="#" id="shouldCenterGeo" class="displayBlock btn btn-lg btn-default">Re-center geometry</a>
    </div><br/>
    <div class="fullWidth">
        <a href="#" class="seeMore closed" data-id="simulationSettings"><span class="fui-triangle-down"></span><b>Simulation Settings:</b></a><a class="about" href="#" id="aboutStiffness"><span class="fui-question-circle"></span></a><br/>
        <div id="simulationSettings" class="hide">
            <div class="sliderInput paddingBottom" id="axialStiffness">
amandaghassaei's avatar
amandaghassaei committed
677
                <span class="label-slider">Axial Strength : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
styling    
amandaghassaei committed
678
679
                <input value="" placeholder="" class="form-control" type="text">
            </div>
amandaghassaei's avatar
amandaghassaei committed
680
681
682
683
            <!--<div class="sliderInput paddingBottom" id="triStiffness">-->
                <!--<span class="label-slider">Triangle Strength : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>-->
                <!--<input value="" placeholder="" class="form-control" type="text">-->
            <!--</div>-->
amandaghassaei's avatar
styling    
amandaghassaei committed
684
            <div class="sliderInput" id="creaseStiffness">
amandaghassaei's avatar
amandaghassaei committed
685
                <span class="label-slider">Fold Strength : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
styling    
amandaghassaei committed
686
687
688
                <input value="" placeholder="" class="form-control" type="text">
            </div>
            <div class="sliderInput" id="panelStiffness">
amandaghassaei's avatar
amandaghassaei committed
689
                <span class="label-slider">Facet Strength : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
styling    
amandaghassaei committed
690
691
692
693
694
695
696
                <input value="" placeholder="" class="form-control" type="text">
            </div>
            <div class="sliderInput" id="percentDamping">
                <span class="label-slider">Damping (0-1): </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
                <input value="" placeholder="" class="form-control" type="text">
            </div>
        </div><br/>
amandaghassaei's avatar
amandaghassaei committed
697
    </div>
amandaghassaei's avatar
styling    
amandaghassaei committed
698
699
700
701
702
703
704
    <div class="fullWidth">
        <a href="#" class="seeMore closed" data-id="animationsSettings"><span class="fui-triangle-down"></span><b>Animation Settings:</b></a><a class="about" href="#" id="aboutAnimation"><span class="fui-question-circle"></span></a><br/>
        <div id="animationsSettings" class="fullWidth hide">
            <div class="doubleIndent">
                <span class="smallTxt">&Delta;t = <span id="deltaT"></span> seconds</span><br/>
                <span class="smallTxt">Num simulation steps per render: &nbsp;&nbsp;<input id="numStepsPerRender" value="" placeholder="" class="int form-control" type="text"></span>
            </div>
amandaghassaei's avatar
amandaghassaei committed
705
        </div>
amandaghassaei's avatar
styling    
amandaghassaei committed
706
    </div><br/>
amandaghassaei's avatar
amandaghassaei committed
707

amandaghassaei's avatar
styling    
amandaghassaei committed
708
709
710
    <div class="fullWidth">
        <a href="#" class="seeMore closed" data-id="errorInfo"><span class="fui-triangle-down"></span><b>Error:</b></a><a class="about" href="#" id="aboutError"><span class="fui-question-circle"></span></a><br/>
        <div id="errorInfo" class="hide smallTxt doubleIndent">
amandaghassaei's avatar
amandaghassaei committed
711
            <label>Average vertex error: <span id="globalError"></span></label>
amandaghassaei's avatar
styling    
amandaghassaei committed
712
        </div>
amandaghassaei's avatar
amandaghassaei committed
713
714
    </div><br/>

amandaghassaei's avatar
amandaghassaei committed
715
    <div class="extraSpace"></div>
amandaghassaei's avatar
amandaghassaei committed
716
</div>
amandaghassaei's avatar
amandaghassaei committed
717
<div id="svgViewer"></div>
amandaghassaei's avatar
amandaghassaei committed
718
719
720
721
722

<div id="controlsLeft" class="flipped">
    <div>
        <b>View Settings:</b><br/><br/>
        <div class="indent">
amandaghassaei's avatar
styling    
amandaghassaei committed
723
724
725
726
            <div>
                <a href="#" class="seeMore open" data-id="materialSettings"><span class="fui-triangle-down"></span>Mesh Material:</a>
            </div>
            <div id="materialSettings" class="inlineBlock indent">
amandaghassaei's avatar
amandaghassaei committed
727
728
729
                <label class="checkbox" for="meshVisible">
                    <input id="meshVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Mesh Visible
amandaghassaei's avatar
amandaghassaei committed
730
                </label>
amandaghassaei's avatar
amandaghassaei committed
731
732
733
734
735
736
737
738
739
740
741
742
743
                <div id="meshMaterialOptions">
                    <label class="radio">
                        <input name="colorMode" value="color" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                        Colored Material
                    </label>
                    <div id="coloredMaterialOptions" class="indent">
                        <label>Color 1 (rgb hex): &nbsp;&nbsp;</label><input id="color1" value="" placeholder="" class="hexVal form-control" type="text"><br/>
                        <label>Color 2 (rgb hex): &nbsp;&nbsp;</label><input id="color2" value="" placeholder="" class="hexVal form-control" type="text"><br/>
                    </div>
                    <label class="radio">
                        <input name="colorMode" value="normal" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                        Face Normals Material
                    </label>
amandaghassaei's avatar
amandaghassaei committed
744
                    <label class="radio">
amandaghassaei's avatar
amandaghassaei committed
745
                        <input name="colorMode" value="axialStrain" data-toggle="radio" class="custom-radio" type="radio"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
amandaghassaei's avatar
amandaghassaei committed
746
                        Strain Visualization<a class="about floatRight" href="#" id="aboutAxialStrain"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
amandaghassaei committed
747
                    </label>
amandaghassaei's avatar
amandaghassaei committed
748
749
750
751
                    <div id="axialStrainMaterialOptions" class="indent">
                        <label>Max Strain: &nbsp;&nbsp;</label>
                        <input id="strainClip" value="" placeholder="" class="float form-control" type="text"> %<br/>
                    </div>
amandaghassaei's avatar
amandaghassaei committed
752
                </div>
amandaghassaei's avatar
styling    
amandaghassaei committed
753
                <br/>
amandaghassaei's avatar
amandaghassaei committed
754
            </div><br/>
amandaghassaei's avatar
styling    
amandaghassaei committed
755
756
757
            <div>
                <a href="#" class="seeMore closed" data-id="edgeVisiblity"><span class="fui-triangle-down"></span>Edge Visiblity</a>:
            </div>
amandaghassaei's avatar
amandaghassaei committed
758
            <div id="edgeVisiblity" class="hide indent">
amandaghassaei's avatar
styling    
amandaghassaei committed
759
760
761
762
                <label class="checkbox" for="edgesVisible">
                    <input id="edgesVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Edges Visible
                </label>
amandaghassaei's avatar
amandaghassaei committed
763
764
765
                <div id="edgeVisOptions" class="indent">
                    <label class="checkbox" for="mtnsVisible">
                        <input id="mtnsVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
amandaghassaei's avatar
amandaghassaei committed
766
                        Mountains <span id="numMtns"></span>
amandaghassaei's avatar
amandaghassaei committed
767
768
769
                    </label>
                    <label class="checkbox" for="valleysVisible">
                        <input id="valleysVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
amandaghassaei's avatar
amandaghassaei committed
770
                        Valleys <span id="numValleys"></span>
amandaghassaei's avatar
amandaghassaei committed
771
772
773
                    </label>
                    <label class="checkbox" for="panelsVisible">
                        <input id="panelsVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
amandaghassaei's avatar
amandaghassaei committed
774
                        Facet Creases <span id="numFacets"></span>
amandaghassaei's avatar
amandaghassaei committed
775
776
777
                    </label>
                    <label class="checkbox" for="passiveEdgesVisible">
                        <input id="passiveEdgesVisible" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
amandaghassaei's avatar
amandaghassaei committed
778
                        Undriven Edges <span id="numPassive"></span>
amandaghassaei's avatar
amandaghassaei committed
779
780
                    </label>
                </div>
amandaghassaei's avatar
styling    
amandaghassaei committed
781
782
783
                <br/>
            </div>
            <br/>
amandaghassaei's avatar
amandaghassaei committed
784
785
786
787
788
789
790
            <!--Rendering:-->
            <!--<div class="indent">-->
                <!--<label class="checkbox" for="ambientOcclusion">-->
                    <!--<input id="ambientOcclusion" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>-->
                    <!--Ambient Occlusion-->
                <!--</label>-->
            <!--</div>-->
amandaghassaei's avatar
styling    
amandaghassaei committed
791
792
793
            <div>
                <a href="#" class="seeMore closed" data-id="virtualReality"><span class="fui-triangle-down"></span>Virtual Reality:</a>
            </div>
amandaghassaei's avatar
amandaghassaei committed
794
795
            <div id="virtualReality" class="hide indent smallTxt">
                Status: &nbsp;<span id="VRstatus"></span><a class="about floatRight" href="#" id="aboutVR"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
amandaghassaei committed
796
797
                <div id="VRoptions"><br/>
                    <a href="#" id="enterVR" class="displayBlock btn btn-lg btn-inverse"></a>
amandaghassaei's avatar
styling    
amandaghassaei committed
798
799
800
801
802
803
804
805
806
807
808
809
810
                </div><br/><br/>
            </div><br/>
            <div>
                <a href="#" class="seeMore closed" data-id="cameraAngle"><span class="fui-triangle-down"></span>View Angle:</a><br/>
            </div>
            <div id="cameraAngle" class="hide indent ">
                <a href="#" id="cameraZ" class="paddingBottom btn btn-sm btn-default">Front</a>
                <a href="#" id="cameraMinusZ" class="paddingBottom btn btn-sm btn-default">Back</a>
                <a href="#" id="cameraX" class="paddingBottom btn btn-sm btn-default">Right</a>
                <a href="#" id="cameraMinusX" class="paddingBottom btn btn-sm btn-default">Left</a><br/>
                <a href="#" id="cameraY" class="btn btn-sm btn-default">Top</a>
                <a href="#" id="cameraMinusY" class="btn btn-sm btn-default">Bottom</a>
                <a href="#" id="cameraOrtho" class="btn btn-sm btn-default">Ortho</a>
amandaghassaei's avatar
amandaghassaei committed
811
            </div>
amandaghassaei's avatar
amandaghassaei committed
812
            <div class="extraSpace"></div>
amandaghassaei's avatar
amandaghassaei committed
813
814
815
        </div>
    </div>
</div>
amandaghassaei's avatar
amandaghassaei committed
816
817
818
819
820
<div class="modal fade" id="aboutModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-body">
                <p><b>Origami Simulator</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
821
822
                    <a target="_blank" href="http://www2.eng.cam.ac.uk/~sdg/preprint/5OSME.pdf">Origami Folding; A Structural Engineering Approach</a><br/>
                    <a target="_blank" href="http://origami.c.u-tokyo.ac.jp/~tachi/cg/SimulationOfRigidOrigami_tachi_4OSME.pdf">Rigid Origami Simulator</a><br/>
amandaghassaei's avatar
docs    
amandaghassaei committed
823
824
825
826
                    <br/>
                    This app uses <a target="_blank" href="https://threejs.org/">three.js</a> to visualize and interact with the 3D geometry of the folding.<br/>
                    Triangulation of quad faces in origami patterns is achieved by adding the shortest edge across the quad (this helps to preserve symmetry, which
                    makes the simulation work better). Arbitrary polygonal faces are triangulated using the <a target="_blank" href="https://github.com/mapbox/earcut">Earcut Library</a>.<br/>
amandaghassaei's avatar
amandaghassaei committed
827
                    Additionally, I used <a target="_blank" href="https://jquery.com/">jQuery</a>, <a target="_blank" href="http://getbootstrap.com/">Bootstrap</a>, and the
amandaghassaei's avatar
docs    
amandaghassaei committed
828
829
830
831
                    <a target="_blank" href="http://designmodo.github.io/Flat-UI/">Flat UI theme</a> to build the GUI.<br/>
                    <br/>
                    Built by <a href="http://www.amandaghassaei.com/" target="_blank">Amanda Ghassaei</a> as a final project for <a href="http://courses.csail.mit.edu/6.849/spring17/" target="_blank">Geometric Folding Algorithms</a>.
                    Code available on <a href="https://github.com/amandaghassaei/OrigamiSimulator" target="_blank">Github</a>.  If you have interesting crease patterns that would
amandaghassaei's avatar
eod    
amandaghassaei committed
832
                    make good demo files, please send them to me (Amanda) so I can add them to the <b>Examples</b> menu.  My email address is on my website.  Thanks!
amandaghassaei's avatar
amandaghassaei committed
833
834
835
836
837
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
838
839
840
841
842
<div class="modal fade" id="tipsModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-body">
                <p><b>File Import Tips</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
843
844
                    Bad design files will throw errors and create models that explode or cannot be solved, here are some tips for
                    importing FOLD or svg files that work.<br/><br/>
amandaghassaei's avatar
amandaghassaei committed
845
846
847
848
849
850
851
852
853
854
855
856
857
                    <b>Importing FOLD:</b><br/><br/>
                    The FOLD file format is specified in <a target="_blank" href="https://github.com/edemaine/fold">these docs</a>.
                    This tool imports FOLD v1.0 files with <b>all</b> of the following fields populated:
                    <ul>
                        <li>vertices_coords</li>
                        <li>edges_vertices</li>
                        <li>edges_assignment</li>
                        <li>faces_vertices</li>
                    </ul>
                    If you are unsure whether your FOLD file is valid, you can inspect it using the
                    <a target="_blank" href="https://edemaine.github.io/fold/examples/foldviewer.html">FOLD Viewer</a>.<br/>
                    <br/>
                    <b>Importing SVG:</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
858
859
                    <ul>
                        <li>The SVG importer supports path objects and line objects (coming).  Please convert polygons to paths before importing.</li>
amandaghassaei's avatar
amandaghassaei committed
860
861
                        <li>Mountain folds are <span style="color:red">red</span> - rgb(255, 0, 0), hex #ff0000</li>
                        <li>Valley folds are <span style="color:blue">blue</span> - rgb(0, 0, 255), hex #0000ff</li>
amandaghassaei's avatar
docs    
amandaghassaei committed
862
                        <li>Outline edges are <span style="color:black">black</span> - rgb(0, 0, 0), hex #000000</li>
amandaghassaei's avatar
amandaghassaei committed
863
864
865
                    </ul>
                    <img src="assets/examplepattern.jpg"/>
                    <ul>
amandaghassaei's avatar
amandaghassaei committed
866
                        <li>This tool will automatically triangulate regions in the pattern that form polygons with more than three sides.
amandaghassaei's avatar
docs    
amandaghassaei committed
867
868
                        To control the triangulations draw lines in <span style="color:#cccc00">yellow</span> - rgb(255, 255, 0), hex #ffff00<br/>
                        In general, patterns move better when their triangulation is symmetric and minimizes long, skinny triangles.</li>
amandaghassaei's avatar
amandaghassaei committed
869
870
871
                    </ul>
                    <img src="assets/patternwithtriangulations.jpg"/>
                    <ul>
amandaghassaei's avatar
amandaghassaei committed
872
873
                        <li>Stroke and line style do not matter.</li>
                        <li>The final fold angle of a mountain or valley fold is set by its opacity. For example, 1.0 = 180&deg;
amandaghassaei's avatar
docs    
amandaghassaei committed
874
                        (fully folded), 0.5 = 90&deg;, 0 = 0&deg; (flat).  Any fold angle between  0&deg; and 180&deg; may be used.</li>
amandaghassaei's avatar
amandaghassaei committed
875
                        <li>This tool should be able to automatically clean files of slightly misaligned vertices, stray vertices,
amandaghassaei's avatar
amandaghassaei committed
876
                        duplicate lines, and extra vertices falling in the middle of an edge,
amandaghassaei's avatar
amandaghassaei committed
877
                        but it is recommended to remove these errors yourself in order to avoid problems.</li>
amandaghassaei's avatar
amandaghassaei committed
878
                        <li>If your simulation is not working, check that the pattern looks correct by clicking on the "Pattern" view in the top nav bar.</li>
amandaghassaei's avatar
amandaghassaei committed
879
880
881
882
883
                    </ul><br/>

                <b>For Adobe Illustrator users:</b><br/><br/>
                I use Illustrator to create SVGs (though any vector editing program should be fine), here are some tips I've found for making svgs to import into this tool.<br/><br/>
                    <ul>
amandaghassaei's avatar
amandaghassaei committed
884
                        <li>If you are starting with a pre-made vector file, first ungroup any groups, release all compound paths
amandaghassaei's avatar
amandaghassaei committed
885
886
887
888
889
                        (<b>Select all + Object>Compound Path>Release</b>), and release all clipping masks (<b>Select all + Object>Clipping Mask>Release</b>).</li>
                        <li>Create geometry using the <b>Line Segment Tool</b>.</li>
                        <li>Illustrator can help you select all lines of a particular type so that you can edit their color or opacity together.  Click the line,
                        then go to <b>Select>Same>Appearance</b> to select all similar lines in the pattern.
                        <li>To turn lines and polygons into path objects, select the geometry then right click and select <b>Make Compound Path</b>.</li>
amandaghassaei's avatar
amandaghassaei committed
890
                        <li>Finally hit <b>Save As</b> and select <b>.svg</b> extension. I'm using the default SVG 1.1 settings, but version 1.0 will work as well.</li>
amandaghassaei's avatar
amandaghassaei committed
891
                    </ul>
amandaghassaei's avatar
amandaghassaei committed
892
893
894
895
896
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
897
<div class="modal fade" id="aboutVRmodal" tabindex="-1" role="dialog">
amandaghassaei's avatar
amandaghassaei committed
898
    <div class="modal-dialog modal-lg">
amandaghassaei's avatar
amandaghassaei committed
899
900
901
902
903
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
doc    
amandaghassaei committed
904
905
906
907
908
                <p><b>VR</b><br/><br/>
                This tool currently supports an interactive Virtual Reality mode using the Vive headset and controllers.
                For this to work, you must first use a <a href="https://webvr.info/" target="_blank">WebVR enabled browser</a>:
                currently only <a href="https://webvr.rocks/firefox" target="_blank">Firefox Nightly</a> is supported by this app.
                <br/><br/>
amandaghassaei's avatar
amandaghassaei committed
909
                When you open this page with the appropriate browser and a Vive connected through Steam VR, you will see a button that says "Enter VR".  Clicking this will
amandaghassaei's avatar
doc    
amandaghassaei committed
910
                put the app in an interactive VR mode.  The hand controllers will allow you to grab the origami mesh and pull on it.
amandaghassaei's avatar
amandaghassaei committed
911
                This is especially interesting if you set the <b>Mesh Material</b> to <b>Strain Visualization</b> so you can see how your interactions
amandaghassaei's avatar
doc    
amandaghassaei committed
912
913
                change the internal strains in the material.
                <br/><br/>
amandaghassaei's avatar
amandaghassaei committed
914
                If the simulation looks choppy, consider lowering the <b>Num simulation steps per render</b> setting under <b>Animation Settings</b> in the right hand menu.
amandaghassaei's avatar
doc    
amandaghassaei committed
915
916
917
918
919
920
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<div class="modal fade" id="aboutAnimationModal" tabindex="-1" role="dialog">
amandaghassaei's avatar
amandaghassaei committed
921
    <div class="modal-dialog modal-lg">
amandaghassaei's avatar
doc    
amandaghassaei committed
922
923
924
925
926
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
amandaghassaei committed
927
                <p><b>Animation Settings</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
928
929
930
                The dynamic simulation is calculated by solving for all the forces in the system, moving time forward in small <b>&Delta;t</b> steps,
                and updating the vertices of the origami incrementally.  The time step size for this animation is calculated automatically
                based on the material stiffnesses set in the <b>Simulation Settings</b> section: more stiff settings
amandaghassaei's avatar
doc    
amandaghassaei committed
931
932
                require shorter time steps to solve and will slow down the simulation.<br/>
                <br/>
amandaghassaei's avatar
amandaghassaei committed
933
                <b>Num simulation steps per render</b> allows you to control the number of tiny time steps forward to take on each
amandaghassaei's avatar
doc    
amandaghassaei committed
934
935
                render cycle.  If the simulation looks choppy to you, you might consider lowering this setting.
                Lowering the number of steps per render will slow down the simulation, but will result in a more smooth animation.
amandaghassaei's avatar
amandaghassaei committed
936
                </p>
amandaghassaei's avatar
amandaghassaei committed
937
938
939
940
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
941
942
943
944
945
946
947
<div class="modal fade" id="exportSTLModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-med">
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
amandaghassaei committed
948
949
950
951
                <b>Export STL</b><br/><br/>
                Filename: &nbsp;&nbsp;<input id="stlFilename" value="" placeholder="" class="bigInput text form-control" type="text"> .stl<br/><br/>
                Scale: &nbsp;&nbsp;<input value="" placeholder="" class="exportScale form-control" type="text"><br/><br/>
                Dimensions: &nbsp;&nbsp;<b><span class="exportDimensions"></span></b><br/>
amandaghassaei's avatar
amandaghassaei committed
952
                <span class="smallTxt">(the STL file format is unitless, but typically assumed to be either in inches or mm)</span><br/>
amandaghassaei's avatar
amandaghassaei committed
953
954
955
956
                <label class="bigLabel checkbox" for="doublesidedSTL">
                    <input id="doublesidedSTL" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Double Sided
                </label>
amandaghassaei's avatar
amandaghassaei committed
957
958
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
amandaghassaei committed
959
                <button id="doSTLsave" type="button" class="actionButton btn btn-success" data-dismiss="modal">Save</button>
amandaghassaei's avatar
amandaghassaei committed
960
961
962
963
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
<div class="modal fade" id="exportOBJModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-med">
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
                <b>Export OBJ</b><br/><br/>
                Filename: &nbsp;&nbsp;<input id="objFilename" value="" placeholder="" class="bigInput text form-control" type="text"> .stl<br/><br/>
                Scale: &nbsp;&nbsp;<input value="" placeholder="" class="exportScale form-control" type="text"><br/><br/>
                Dimensions: &nbsp;&nbsp;<b><span class="exportDimensions"></span></b><br/>
                <span class="smallTxt">(the OBJ file format is unitless, but typically assumed to be either in inches or mm)</span><br/>
                <label class="bigLabel checkbox" for="doublesidedOBJ">
                    <input id="doublesidedOBJ" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Double Sided
                </label>
            </div>
            <div class="modal-footer">
                <button id="doOBJsave" type="button" class="actionButton btn btn-success" data-dismiss="modal">Save</button>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
987
988
989
990
991
992
993
<div class="modal fade" id="exportFOLDModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-med">
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
amandaghassaei committed
994
                <b>Export FOLD</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
995
                Filename: &nbsp;&nbsp;<input id="foldFilename" value="" placeholder="" class="bigInput text form-control" type="text"> .fold<br/><br/>
amandaghassaei's avatar
amandaghassaei committed
996
997
998
999
                Author: &nbsp;&nbsp;<input id="foldAuthor" value="Amanda Ghassaei" placeholder="" class="bigInput text form-control" type="text"><br/><br/>
                Scale: &nbsp;&nbsp;<input value="" placeholder="" class="exportScale form-control" type="text">&nbsp;&nbsp;&nbsp;&nbsp;
                Units: &nbsp;&nbsp;
                <div class="btn-group">
amandaghassaei's avatar
amandaghassaei committed
1000
                    <button data-toggle="dropdown" class="btn btn-default dropdown-toggle" type="button"><span class="unitsDisplay"></span> <span class="caret"></span></button>
amandaghassaei's avatar
amandaghassaei committed
1001
                    <ul id="unitsDropdown" role="menu" class="dropdown-menu">
amandaghassaei's avatar
amandaghassaei committed
1002
1003
1004
1005
1006
1007
1008
1009
                        <li><a class="units" data-id="unit" href="#">unitless</a></li>
                        <li><a class="units" data-id="in" href="#">in</a></li>
                        <li><a class="units" data-id="pt" href="#">pt</a></li>
                        <li><a class="units" data-id="m" href="#">m</a></li>
                        <li><a class="units" data-id="cm" href="#">cm</a></li>
                        <li><a class="units" data-id="mm" href="#">mm</a></li>
                        <li><a class="units" data-id="um" href="#">um</a></li>
                        <li><a class="units" data-id="nm" href="#">nm</a></li>
amandaghassaei's avatar
amandaghassaei committed
1010
1011
1012
                    </ul>
                </div>
                <br/><br/>
amandaghassaei's avatar
amandaghassaei committed
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
                Dimensions: &nbsp;&nbsp;<b><span class="exportDimensions"></span> <span class="unitsDisplay"></span></b><br/>
                <label class="bigLabel checkbox" for="triangulateFOLDexport">
                    <input id="triangulateFOLDexport" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Save with triangulated faces
                </label>
                <label class="bigLabel checkbox" for="exportFoldAngle">
                    <input id="exportFoldAngle" data-toggle="checkbox" disabled class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Save with vertices_foldAngles (coming soon)
                </label>
                <span class="smallTxt">For more information about the FOLD file format, see the <a target="_blank" href="https://github.com/edemaine/fold">offical docs</a></span>.
amandaghassaei's avatar
amandaghassaei committed
1023
1024
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
amandaghassaei committed
1025
                <button id="doFOLDsave" type="button" class="actionButton btn btn-success" data-dismiss="modal">Save</button>
amandaghassaei's avatar
amandaghassaei committed
1026
1027
1028
1029
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
errors    
amandaghassaei committed
1030
1031
1032
1033
1034
1035
1036
<div class="modal fade" id="importFoldModal" tabindex="-1" role="dialog">
    <div class="modal-dialog modal-med">
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
amandaghassaei committed
1037
                <b>Import FOLD</b><br/><br/>
1038
                <label class="bigLabel checkbox" for="foldUseAngles">
amandaghassaei's avatar
amandaghassaei committed
1039
1040
1041
                    <input id="foldUseAngles" data-toggle="checkbox" class="custom-checkbox layersSelector" type="checkbox"><span class="icons"><span class="icon-unchecked"></span><span class="icon-checked"></span></span>
                    Use current angles as target fold angles
                </label>
amandaghassaei's avatar
errors    
amandaghassaei committed
1042
1043
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
amandaghassaei committed
1044
                <button data-dismiss="modal" type="button" class="btn btn-success">OK</button>
amandaghassaei's avatar
errors    
amandaghassaei committed
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<div class="modal fade" id="warningModal" tabindex="-1" role="dialog">
    <div class="modal-dialog sm">
        <div class="modal-content">
            <div class="modal-body">
                <p id="warningMessage">
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
1059
<div class="modal fade" id="aboutErrorModal" tabindex="-1" role="dialog">
amandaghassaei's avatar
amandaghassaei committed
1060
    <div class="modal-dialog modal-lg">
amandaghassaei's avatar
amandaghassaei committed
1061
1062
1063
1064
1065
1066
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
                <p><b>Simulation Error</b><br/><br/>
amandaghassaei's avatar
amandaghassaei committed
1067
1068
1069
                    <b>Average vertex error</b> gives a sense of how much the distance constraints in the
                    origami pattern are being violated (i.e. how much the sheet is being stretched).  The error at each vertex is evaluated by averaging the
                    percent deviation of all its distance constraints with adjacent vertices.  This error is
amandaghassaei's avatar
amandaghassaei committed
1070
                    reported as a percent of the total length of the distance constraint to remove scaling effects.
amandaghassaei's avatar
amandaghassaei committed
1071
1072
                    <br/><br/>
                    This measurement is equivalent to <a href="https://en.wikipedia.org/wiki/Deformation_(mechanics)#Engineering_strain" target="_blank">
amandaghassaei's avatar
amandaghassaei committed
1073
                        Cauchy strain or engineering strain</a> of the distance constraints on this system.
amandaghassaei's avatar
doc    
amandaghassaei committed
1074
                    Increasing the <b>Axial Stiffness</b> will tighten these constraints and
amandaghassaei's avatar
amandaghassaei committed
1075
1076
                    lower the error in the simulation.<br/>
                    <br/>
amandaghassaei's avatar
amandaghassaei committed
1077
                    To visualize the error of each vertex graphically, select <b>Strain Visualization</b> under <b>Mesh Material</b>
amandaghassaei's avatar
amandaghassaei committed
1078
1079
1080
1081
1082
1083
                     in the left menu.
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
amandaghassaei committed
1084
<div class="modal fade" id="aboutStiffnessModal" tabindex="-1" role="dialog">
amandaghassaei's avatar
amandaghassaei committed
1085
    <div class="modal-dialog modal-lg">
amandaghassaei's avatar
amandaghassaei committed
1086
1087
1088
1089
1090
        <div class="modal-content">
            <div class="modal-body">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">&times;</span>
                </button>
amandaghassaei's avatar
amandaghassaei committed
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105