Skip to content
GitLab
Switch branch/tag
Find file Normal viewHistoryPermalink
index.html 55.9 KB
Newer Older
amandaghassaei's avatar
starting app  
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
small change    
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
starting app  
amandaghassaei committed
24
amandaghassaei's avatar
starting sim    
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
80 
    <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">
        void main(){
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
81 
            gl_FragColor = vec4(0.0);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
82
83 
        }
    </script>
amandaghassaei's avatar
recenter geo after user interaction    
amandaghassaei committed
84
85
86
87
88
89
90
91
92
93
94
95 
    <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
starting sim    
amandaghassaei committed
96
97
98
99
100
101
102
103
104
105
106
107
108 

    <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
drag node    
amandaghassaei committed
109
110 
            vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;
amandaghassaei's avatar
starting sim    
amandaghassaei committed
111
112 
            float isFixed = texture2D(u_mass, scaledFragCoord).y;
            if (isFixed == 1.0){
amandaghassaei's avatar
drag node    
amandaghassaei committed
113 
                gl_FragColor = vec4(lastPosition, 0.0);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
114
115
116 
                return;
            }
amandaghassaei's avatar
global error    
amandaghassaei committed
117
118
119 
            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
starting sim    
amandaghassaei committed
120
121
122
123
124
125 
        }
    </script>

    <script id="velocityCalcShader" type="x-shader/x-fragment">
        precision mediump float;
        uniform vec2 u_textureDim;
amandaghassaei's avatar
debugged shader    
amandaghassaei committed
126 
        uniform vec2 u_textureDimEdges;
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
127
128
129 
        uniform vec2 u_textureDimFaces;
        uniform vec2 u_textureDimCreases;
        uniform vec2 u_textureDimNodeCreases;
amandaghassaei's avatar
eod    
amandaghassaei committed
130 
        uniform float u_creasePercent;
amandaghassaei's avatar
starting sim    
amandaghassaei committed
131
132
133
134
135
136 
        uniform float u_dt;
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_lastVelocity;
        uniform sampler2D u_originalPosition;
        uniform sampler2D u_externalForces;
        uniform sampler2D u_mass;
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
137 
        uniform sampler2D u_meta;//[beamsIndex, numBeam, creaseMeta2Index, numCreases]
amandaghassaei's avatar
debugged shader    
amandaghassaei committed
138 
        uniform sampler2D u_beamMeta;//[k, d, length, otherNodeIndex]
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
139
140
141
142 
        uniform sampler2D u_creaseMeta;//[k, d, targetTheta]
        uniform sampler2D u_creaseMeta2;//[creaseIndex, momentArmLength, nodeIndex]
        uniform sampler2D u_normals;
        uniform sampler2D u_theta;//[theta, z, normal1Index, normal2Index]
amandaghassaei's avatar
starting sim    
amandaghassaei committed
143
144
145
146
147
148 

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

            vec2 mass = texture2D(u_mass, scaledFragCoord).xy;
amandaghassaei's avatar
drag node    
amandaghassaei committed
149 
            if (mass[1] == 1.0){//fixed
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
150 
                gl_FragColor = vec4(0.0);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
151
152
153
154
155
156
157
158 
                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
panel stiffness    
amandaghassaei committed
159 
            vec4 meta = texture2D(u_meta, scaledFragCoord);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
160
amandaghassaei's avatar
global error    
amandaghassaei committed
161
162 
            float nodeError = 0.0;
amandaghassaei's avatar
ui    
amandaghassaei committed
163 
            for (int j=0;j<100;j++){//for all beams (up to 100, had to put a const int in here)
amandaghassaei's avatar
debugged shader    
amandaghassaei committed
164
165
166
167
168
169
170
171 
                if (j >= int(meta[1])) break;

                float beamIndex1D = meta[0]+float(j);
                vec2 beamIndex = vec2(mod(beamIndex1D, u_textureDimEdges.x)+0.5, floor(beamIndex1D/u_textureDimEdges.x)+0.5);
                vec2 scaledBeamIndex = beamIndex/u_textureDimEdges;
                vec4 beamMeta = texture2D(u_beamMeta, scaledBeamIndex);

                float neighborIndex1D = beamMeta[3];
amandaghassaei's avatar
starting sim    
amandaghassaei committed
172
173
174
175
176
177
178
179 
                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
better triangulation of quads    
amandaghassaei committed
180
181 
                float deltaPLength = length(deltaP);
                deltaP -= deltaP*(beamMeta[2]/deltaPLength);
amandaghassaei's avatar
scale fix    
amandaghassaei committed
182 
                nodeError += abs(deltaPLength/length(nominalDist) - 1.0);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
183
184 
                vec3 deltaV = neighborLastVelocity-lastVelocity;
amandaghassaei's avatar
debugging    
amandaghassaei committed
185 
                vec3 _force = deltaP*beamMeta[0] + deltaV*beamMeta[1];
amandaghassaei's avatar
starting sim    
amandaghassaei committed
186
187 
                force += _force;
            }
amandaghassaei's avatar
global error    
amandaghassaei committed
188 
            nodeError /= meta[1];
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
189
190
191
192
193
194
195 

            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;

                float nodeCreaseIndex1D = meta[2]+float(j);
                vec2 nodeCreaseIndex = vec2(mod(nodeCreaseIndex1D, u_textureDimNodeCreases.x)+0.5, floor(nodeCreaseIndex1D/u_textureDimNodeCreases.x)+0.5);
                vec2 scaledNodeCreaseIndex = nodeCreaseIndex/u_textureDimNodeCreases;
amandaghassaei's avatar
added in crease reaction    
amandaghassaei committed
196 
                vec4 creaseMeta2 = texture2D(u_creaseMeta2, scaledNodeCreaseIndex);//[creaseIndex, length to node, nodeType (1 or 2), isReaction]
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
197
198
199
200
201
202
203
204 

                float creaseIndex1D = creaseMeta2[0];
                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]
amandaghassaei's avatar
removed instability    
amandaghassaei committed
205
206
207 
                float targetTheta = creaseMeta[2] * u_creasePercent;
                float angForce = creaseMeta[0]*(targetTheta-thetas[0]);// + creaseMeta[1]*thetas[1];
amandaghassaei's avatar
crease nodes coef    
amandaghassaei committed
208 
                if (creaseMeta2[3] < 0.0){//crease reaction, node is on a crease
amandaghassaei's avatar
added in crease reaction    
amandaghassaei committed
209
210 
                    float nodeNum = creaseMeta2[2];
amandaghassaei's avatar
dynamic model working again    
amandaghassaei committed
211 
                    //node #1
amandaghassaei's avatar
added in crease reaction    
amandaghassaei committed
212
213
214
215
216
217
218
219
220
221
222 
                    float normalIndex1D = thetas[2];
                    vec2 normalsIndex = vec2(mod(normalIndex1D, u_textureDimFaces.x)+0.5, floor(normalIndex1D/u_textureDimFaces.x)+0.5);
                    vec2 scaledNormalsIndex = normalsIndex/u_textureDimFaces;
                    vec3 normal1 = texture2D(u_normals, scaledNormalsIndex).xyz;

                    //node #2
                    normalIndex1D = thetas[3];
                    normalsIndex = vec2(mod(normalIndex1D, u_textureDimFaces.x)+0.5, floor(normalIndex1D/u_textureDimFaces.x)+0.5);
                    scaledNormalsIndex = normalsIndex/u_textureDimFaces;
                    vec3 normal2 = texture2D(u_normals, scaledNormalsIndex).xyz;
amandaghassaei's avatar
crease nodes coef    
amandaghassaei committed
223
224 
                    float coef1 = creaseMeta2[1];
                    float coef2 = creaseMeta2[2];
amandaghassaei's avatar
added in crease reaction    
amandaghassaei committed
225
amandaghassaei's avatar
crease nodes coef    
amandaghassaei committed
226 
                    vec3 _force = -angForce*(coef1*normal1 + coef2*normal2);
amandaghassaei's avatar
added in crease reaction    
amandaghassaei committed
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241 
                    force += _force;
                } else {
                    float nodeNum = creaseMeta2[2];
                    float normalIndex1D = thetas[2];//node #1
                    if (nodeNum > 1.1) {
                        normalIndex1D = thetas[3];//node #2
                    }
                    vec2 normalsIndex = vec2(mod(normalIndex1D, u_textureDimFaces.x)+0.5, floor(normalIndex1D/u_textureDimFaces.x)+0.5);
                    vec2 scaledNormalsIndex = normalsIndex/u_textureDimFaces;
                    vec3 normal = texture2D(u_normals, scaledNormalsIndex).xyz;

                    float momentArm = creaseMeta2[1];

                    vec3 _force = angForce/momentArm*normal;
                    force += _force;
amandaghassaei's avatar
eod    
amandaghassaei committed
242 
                }
amandaghassaei's avatar
panel stiffness    
amandaghassaei committed
243
244
245 

            }
amandaghassaei's avatar
adding limits on theta    
amandaghassaei committed
246 
            vec3 velocity = force*u_dt/mass[0] + lastVelocity;
amandaghassaei's avatar
global error    
amandaghassaei committed
247 
            gl_FragColor = vec4(velocity,nodeError);
amandaghassaei's avatar
starting sim    
amandaghassaei committed
248
249
250 
        }
    </script>
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
251 
    <script id="thetaCalcShader" type="x-shader/x-fragment">
amandaghassaei's avatar
removed instability    
amandaghassaei committed
252 
        #define TWO_PI 6.283185307179586476925286766559
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
253 
        precision mediump float;
amandaghassaei's avatar
update crease vectors    
amandaghassaei committed
254 
        uniform vec2 u_textureDim;
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
255
256
257
258
259 
        uniform vec2 u_textureDimFaces;
        uniform vec2 u_textureDimCreases;
        uniform sampler2D u_normals;
        uniform sampler2D u_lastTheta;
        uniform sampler2D u_creaseVectors;
amandaghassaei's avatar
update crease vectors    
amandaghassaei committed
260
261 
        uniform sampler2D u_lastPosition;
        uniform sampler2D u_originalPosition;
amandaghassaei's avatar
index sync    
amandaghassaei committed
262 
        uniform float u_dt;
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
263
264
265
266
267
268
269
270
271 

        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
adding limits on theta    
amandaghassaei committed
272 
                gl_FragColor = vec4(lastTheta[0], 0.0, -1.0, -1.0);
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
273
274
275
276
277
278
279
280
281
282
283 
                return;
            }

            vec2 normal1Index = vec2(mod(lastTheta[2], u_textureDimFaces.x)+0.5, floor(lastTheta[2]/u_textureDimFaces.x)+0.5);
            normal1Index /= u_textureDimFaces;
            vec2 normal2Index = vec2(mod(lastTheta[3], u_textureDimFaces.x)+0.5, floor(lastTheta[3]/u_textureDimFaces.x)+0.5);
            normal2Index /= u_textureDimFaces;

            vec3 normal1 = texture2D(u_normals, normal1Index).xyz;
            vec3 normal2 = texture2D(u_normals, normal2Index).xyz;
amandaghassaei's avatar
removed instability    
amandaghassaei committed
284 
            float dotNormals = dot(normal1, normal2);//normals are already normalized, no need to divide by length
amandaghassaei's avatar
index sync    
amandaghassaei committed
285
286 
            if (dotNormals < -1.0) dotNormals = -1.0;
            else if (dotNormals > 1.0) dotNormals = 1.0;
amandaghassaei's avatar
update crease vectors    
amandaghassaei committed
287
288
289
290
291
292
293
294
295 

            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
update crease vector    
amandaghassaei committed
296
297
298
299 
            //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
update crease vectors    
amandaghassaei committed
300
amandaghassaei's avatar
update crease vector    
amandaghassaei committed
301
302 
            float theta = atan(y, x);
amandaghassaei's avatar
index sync    
amandaghassaei committed
303 
            float diff = theta-lastTheta[0];
amandaghassaei's avatar
vive    
amandaghassaei committed
304 
            float origDiff = diff;
amandaghassaei's avatar
debugging    
amandaghassaei committed
305 
            if (diff < -5.0) {
amandaghassaei's avatar
index sync    
amandaghassaei committed
306 
                diff += TWO_PI;
amandaghassaei's avatar
debugging    
amandaghassaei committed
307 
            } else if (diff > 5.0) {
amandaghassaei's avatar
small changes    
amandaghassaei committed
308 
                diff -= TWO_PI;
amandaghassaei's avatar
index sync    
amandaghassaei committed
309 
            }
amandaghassaei's avatar
vive    
amandaghassaei committed
310 
            theta = lastTheta[0] + diff;
amandaghassaei's avatar
small changes    
amandaghassaei committed
311 
            gl_FragColor = vec4(theta, diff, lastTheta[2], lastTheta[3]);//[theta, w, normal1Index, normal2Index]
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
312
313 
        }
    </script>
amandaghassaei's avatar
debugging    
amandaghassaei committed
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343 

    <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;

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

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

            float nodeIndex1D = indices[0];
            vec2 nodeIndex = vec2(mod(nodeIndex1D, u_textureDim.x)+0.5, floor(nodeIndex1D/u_textureDim.x)+0.5);
            vec2 scaledNodeIndex = nodeIndex/u_textureDim;
            vec3 a = texture2D(u_lastPosition, scaledNodeIndex).xyz + texture2D(u_originalPosition, scaledNodeIndex).xyz;

            nodeIndex1D = indices[1];
            nodeIndex = vec2(mod(nodeIndex1D, u_textureDim.x)+0.5, floor(nodeIndex1D/u_textureDim.x)+0.5);
            scaledNodeIndex = nodeIndex/u_textureDim;
            vec3 b = texture2D(u_lastPosition, scaledNodeIndex).xyz + texture2D(u_originalPosition, scaledNodeIndex).xyz;

            nodeIndex1D = indices[2];
            nodeIndex = vec2(mod(nodeIndex1D, u_textureDim.x)+0.5, floor(nodeIndex1D/u_textureDim.x)+0.5);
            scaledNodeIndex = nodeIndex/u_textureDim;
            vec3 c = texture2D(u_lastPosition, scaledNodeIndex).xyz + texture2D(u_originalPosition, scaledNodeIndex).xyz;
amandaghassaei's avatar
beginning vive support    
amandaghassaei committed
344
345
346 
            vec3 normal = normalize(cross(b-a, c-a));

            gl_FragColor = vec4(normal, 0.0);
amandaghassaei's avatar
debugging    
amandaghassaei committed
347
348 
        }
    </script>
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
349
amandaghassaei's avatar
starting app  
amandaghassaei committed
350
351
352 
    <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
debugging    
amandaghassaei committed
353 
    <script type="text/javascript" src="dependencies/three.js"></script>
amandaghassaei's avatar
starting app  
amandaghassaei committed
354 
    <script type="text/javascript" src="dependencies/binary_stl_writer.js"></script>
amandaghassaei's avatar
vive settings    
amandaghassaei committed
355 
    <script type="text/javascript" src="dependencies/TrackballControls.js"></script>
amandaghassaei's avatar
starting svg export    
amandaghassaei committed
356
357 
    <script type="text/javascript" src="dependencies/Projector.js"></script>
    <script type="text/javascript" src="dependencies/SVGRenderer.js"></script>
amandaghassaei's avatar
starting app  
amandaghassaei committed
358
359 
    <script type="text/javascript" src="dependencies/underscore-min.js"></script>
    <script type="text/javascript" src="dependencies/FileSaver.min.js"></script>
amandaghassaei's avatar
svg import    
amandaghassaei committed
360 
    <script type="text/javascript" src="dependencies/SVGLoader.js"></script>
amandaghassaei's avatar
obj export    
amandaghassaei committed
361 
    <script type="text/javascript" src="dependencies/OBJExporter.js"></script>
amandaghassaei's avatar
adding in svg    
amandaghassaei committed
362 
    <script type="text/javascript" src="dependencies/path-data-polyfill.js"></script>
amandaghassaei's avatar
adding mesh    
amandaghassaei committed
363 
    <script type="text/javascript" src="dependencies/earcut.js"></script>
amandaghassaei's avatar
starting to add static solver    
amandaghassaei committed
364 
    <script type="text/javascript" src="dependencies/numeric-1.2.6.js"></script>
amandaghassaei's avatar
starting app  
amandaghassaei committed
365
amandaghassaei's avatar
ambient occlusion    
amandaghassaei committed
366
367
368
369
370
371
372
373 
    <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
beginning vive support    
amandaghassaei committed
374
375
376
377
378 
    <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
small changes    
amandaghassaei committed
379
380 
    <script type="text/javascript" src="js/dynamic/GLBoilerplate.js"></script>
    <script type="text/javascript" src="js/dynamic/GPUMath.js"></script>
amandaghassaei's avatar
starting app  
amandaghassaei committed
381
382
383 
    <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
starting sim    
amandaghassaei committed
384
385 
    <script type="text/javascript" src="js/node.js"></script>
    <script type="text/javascript" src="js/beam.js"></script>
amandaghassaei's avatar
adding in crease stiffness    
amandaghassaei committed
386 
    <script type="text/javascript" src="js/crease.js"></script>
amandaghassaei's avatar
starting sim    
amandaghassaei committed
387 
    <script type="text/javascript" src="js/model.js"></script>
amandaghassaei's avatar
3D ui    
amandaghassaei committed
388 
    <script type="text/javascript" src="js/3dUI.js"></script>
amandaghassaei's avatar
starting to add static solver    
amandaghassaei committed
389 
    <script type="text/javascript" src="js/staticSolver.js"></script>
amandaghassaei's avatar
eod    
amandaghassaei committed
390 
    <script type="text/javascript" src="js/dynamic/dynamicSolver.js"></script>
amandaghassaei's avatar
svg import    
amandaghassaei committed
391 
    <script type="text/javascript" src="js/pattern.js"></script>
amandaghassaei's avatar
save stl    
amandaghassaei committed
392 
    <script type="text/javascript" src="js/saveSTL.js"></script>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
393 
    <script type="text/javascript" src="js/saveFOLD.js"></script>
amandaghassaei's avatar
starting svg export    
amandaghassaei committed
394 
    <script type="text/javascript" src="js/importer.js"></script>
amandaghassaei's avatar
beginning vive support    
amandaghassaei committed
395 
    <script type="text/javascript" src="js/ViveInterface.js"></script>
amandaghassaei's avatar
starting app  
amandaghassaei committed
396
397
398
399 

    <script type="text/javascript" src="js/main.js"></script>
</head>
<body>
amandaghassaei's avatar
nav    
amandaghassaei committed
400
401
402
403
404
405
406
407
408
409
410
411
412 
<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
errors    
amandaghassaei committed
413 
                    <li><a class="loadFile" href="#">Import... (SVG / FOLD / txt)</a></li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
414 
                    <li><a id="tips" href="#">File Import Tips</a></li>
amandaghassaei's avatar
starting svg export    
amandaghassaei committed
415 
                    <li class="divider"></li>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
416 
                    <li><a id="exportFOLD" href="#">Save Simulation as FOLD...</a></li>
amandaghassaei's avatar
nav    
amandaghassaei committed
417 
                    <li><a id="exportSTL" href="#">Save Simulation as STL...</a></li>
amandaghassaei's avatar
obj export    
amandaghassaei committed
418 
                    <li><a id="exportOBJ" href="#">Save Simulation as OBJ...</a></li>
amandaghassaei's avatar
svg renederer    
amandaghassaei committed
419
420 
                    <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
421
422 
                </ul>
            </li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
423
424
425 
            <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
working on better svg parsing    
amandaghassaei committed
426 
                <ul class="dropdown-menu" style="min-width: 200px;">
amandaghassaei's avatar
small changes    
amandaghassaei committed
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442 
                    <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
small changes    
amandaghassaei committed
443 
                            <li><a href="#" class="demo" data-url="Tessellations/honeycomb_333_cp.svg">Lang Honeycomb Tessellation</a></li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
444
445
446
447
448
449 
                            <li><a href="#" class="demo" data-url="Tessellations/oval_tessellation_cp.svg">Lang Oval Tessellation</a></li>
                        </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
huffman tower    
amandaghassaei committed
450 
                            <li><a href="#" class="demo" data-url="Curved/huffmanTower.svg">Huffman Tower</a></li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
451 
                            <li><a href="#" class="demo" data-url="Curved/creaseMesh.txt">Curved Crease 1</a></li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
452 
                            <li><a href="#" class="demo" data-url="Curved/curvedcrease2.svg">Curved Crease 2</a></li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
453
454
455
456
457
458
459
460
461
462
463
464
465
466 
                        </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/hyperbolic_limit_cp.svg">Lang Hyperbolic Limit</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
small changes    
amandaghassaei committed
467
468 
            <li><a id="navPattern" href="#">Pattern</a></li>
            <li><a id="navSimulation" href="#">Simulation</a></li>
amandaghassaei's avatar
nav    
amandaghassaei committed
469
470 
            <li><a id="about" class="menuHoverControls" target="_blank" href="#">About</a></li>
        </ul>
amandaghassaei's avatar
small changes    
amandaghassaei committed
471
472
473
474
475
476
477
478
479
480 
        <!--<form class="navbar-form navbar-right" action="#" role="search">-->
            <!--<div class="form-group">-->
              <!--<div class="input-group">-->
                <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>
              <!--</div>-->
            <!--</div>-->
        <!--</form>-->
amandaghassaei's avatar
nav    
amandaghassaei committed
481
482
483
484
485
486 

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

</nav>
amandaghassaei's avatar
starting app  
amandaghassaei committed
487 
<div  id="threeContainer"></div>
amandaghassaei's avatar
starting sim    
amandaghassaei committed
488 
<canvas id="gpuMathCanvas"></canvas>
amandaghassaei's avatar
starting app  
amandaghassaei committed
489 
<div id="controls">
amandaghassaei's avatar
moving stuff around    
amandaghassaei committed
490
491
492
493
494
495
496
497
498
499
500 
    <div>
        <a href="#" id="reset" class="btn floatRight btn-lg btn-default">Reset</a>
        <a href="#" id="start" class="btn floatRight btn-lg btn-success">Start Simulation</a>
        <a href="#" id="pause" class="btn floatRight btn-lg btn-warning">Pause Simulation</a>
        <br/><br/>
        <div id="stepForwardOptions" class="floatRight">
            Num Steps: &nbsp;&nbsp;<input id="numSteps" value="100" placeholder="" class="form-control" type="text">
            <a href="#" id="stepForward" class="btn btn-lg btn-default">Step Forward</a>
            <br/><br/>
        </div><br/>
    </div>
amandaghassaei's avatar
waterbomb    
amandaghassaei committed
501 
    <b>Simulation Type:</b><br/>
amandaghassaei's avatar
cleaning up    
amandaghassaei committed
502
503
504 
    <div class="indent">
        <label class="radio">
            <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>
amandaghassaei's avatar
about modals    
amandaghassaei committed
505 
            Compliant Dynamic Simulation <a class="about floatRight" href="#" id="aboutDynamicSim"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
cleaning up    
amandaghassaei committed
506
507
508 
        </label>
        <label class="radio">
            <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>
amandaghassaei's avatar
eod    
amandaghassaei committed
509 
            Compliant Static Simulation <a class="about floatRight" href="#" id="aboutStaticSim"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
cleaning up    
amandaghassaei committed
510
511 
        </label>
    </div><br/>
amandaghassaei's avatar
toggle user interaction    
amandaghassaei committed
512
513
514
515 
    <label class="checkbox" 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><br/>
amandaghassaei's avatar
about modals    
amandaghassaei committed
516 
    <b>Stiffness Settings:</b><a class="floatRight about" href="#" id="aboutStiffness"><span class="fui-question-circle"></span></a><br/><br/>
amandaghassaei's avatar
ui    
amandaghassaei committed
517
518 
    <div class="sliderInput" id="axialStiffness">
        <span class="label-slider">Axial Stiffness : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
debugging    
amandaghassaei committed
519 
        <input value="" placeholder="" class="form-control" type="text">
amandaghassaei's avatar
ui    
amandaghassaei committed
520
521 
    </div>
    <div class="sliderInput" id="creaseStiffness">
amandaghassaei's avatar
eod    
amandaghassaei committed
522 
        <span class="label-slider">Fold Stiffness : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
debugging    
amandaghassaei committed
523 
        <input value="" placeholder="" class="form-control" type="text">
amandaghassaei's avatar
ui    
amandaghassaei committed
524
525 
    </div>
    <div class="sliderInput" id="panelStiffness">
amandaghassaei's avatar
eod    
amandaghassaei committed
526 
        <span class="label-slider">Facet Stiffness : </span><div class="flat-slider ui-slider ui-corner-all ui-slider-horizontal ui-widget ui-widget-content"></div>
amandaghassaei's avatar
debugging    
amandaghassaei committed
527 
        <input value="" placeholder="" class="form-control" type="text">
amandaghassaei's avatar
ui    
amandaghassaei committed
528 
    </div>
amandaghassaei's avatar
small changes    
amandaghassaei committed
529
530
531
532 
    <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>
amandaghassaei's avatar
global error    
amandaghassaei committed
533
534 
    <br/><br/>
    <b>Error:</b><br/>
amandaghassaei's avatar
about modals    
amandaghassaei committed
535 
    <div class="indent">
amandaghassaei's avatar
small changes    
amandaghassaei committed
536 
        <label>Average node error: <span id="globalError"></span></label>
amandaghassaei's avatar
about modals    
amandaghassaei committed
537 
        <a class="about floatRight" href="#" id="aboutError"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
start stop reset    
amandaghassaei committed
538 
    </div><br/>
amandaghassaei's avatar
doc    
amandaghassaei committed
539 
    <b>Animation Settings:</b><a class="about floatRight" href="#" id="aboutAnimation"><span class="fui-question-circle"></span></a><br/>
amandaghassaei's avatar
small changes    
amandaghassaei committed
540 
        <div class="indent">
amandaghassaei's avatar
change num steps    
amandaghassaei committed
541 
            <span class="smallTxt">&Delta; t = <span id="deltaT"></span> seconds</span><br/>
amandaghassaei's avatar
small changes    
amandaghassaei committed
542 
            <span class="smallTxt">Num simulation steps per render: &nbsp;&nbsp;<input id="numStepsPerRender" value="" placeholder="" class="int form-control" type="text"></span><br/><br/>
amandaghassaei's avatar
small changes    
amandaghassaei committed
543
544 
            <a href="#" id="shouldCenterGeo" class="floatRight btn btn-lg btn-default">Re-center geometry</a>
        </div>
amandaghassaei's avatar
svg import    
amandaghassaei committed
545 
    <div class="extraSpace"></div>
amandaghassaei's avatar
starting app  
amandaghassaei committed
546 
</div>
amandaghassaei's avatar
small changes    
amandaghassaei committed
547 
<div id="svgViewer"></div>
amandaghassaei's avatar
reorganizing    
amandaghassaei committed
548
549
550
551
552
553
554 

<div id="controlsLeft" class="flipped">
    <div>
        <b>View Settings:</b><br/><br/>
        <div class="indent">
            Mesh Material:
            <div class="indent">
amandaghassaei's avatar
toggle mesh vis    
amandaghassaei committed
555
556
557 
                <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
reorganizing    
amandaghassaei committed
558 
                </label>
amandaghassaei's avatar
toggle mesh vis    
amandaghassaei committed
559
560
561
562
563
564
565
566
567
568
569
570
571 
                <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
global error    
amandaghassaei committed
572 
                    <label class="radio">
amandaghassaei's avatar
axial strain    
amandaghassaei committed
573 
                        <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
small changes    
amandaghassaei committed
574 
                        Axial Strain Visualization<a class="about floatRight" href="#" id="aboutAxialStrain"><span class="fui-question-circle"></span></a>
amandaghassaei's avatar
global error    
amandaghassaei committed
575 
                    </label>
amandaghassaei's avatar
max strain clip    
amandaghassaei committed
576
577
578
579 
                    <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
reorganizing    
amandaghassaei committed
580
581 
                </div>
            </div><br/>
amandaghassaei's avatar
styling    
amandaghassaei committed
582
583
584
585
586
587 
            Edges:
            <div class="indent">
                <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
edge vis    
amandaghassaei committed
588
589
590 
                <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
show num of each edge type    
amandaghassaei committed
591 
                        Mountains <span id="numMtns"></span>
amandaghassaei's avatar
edge vis    
amandaghassaei committed
592
593
594 
                    </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
show num of each edge type    
amandaghassaei committed
595 
                        Valleys <span id="numValleys"></span>
amandaghassaei's avatar
edge vis    
amandaghassaei committed
596
597
598 
                    </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
show num of each edge type    
amandaghassaei committed
599 
                        Facet Creases <span id="numFacets"></span>
amandaghassaei's avatar
edge vis    
amandaghassaei committed
600
601
602 
                    </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
show num of each edge type    
amandaghassaei committed
603 
                        Undriven Edges <span id="numPassive"></span>
amandaghassaei's avatar
edge vis    
amandaghassaei committed
604
605 
                    </label>
                </div>
amandaghassaei's avatar
ui    
amandaghassaei committed
606 
            </div><br/>
amandaghassaei's avatar
patterns    
amandaghassaei committed
607
608
609
610
611
612
613 
            <!--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
adding ui for vr    
amandaghassaei committed
614
615 
            VR:
            <div class="indent smallTxt">
amandaghassaei's avatar
beginning vive support    
amandaghassaei committed
616 
                Status: &nbsp;<span id="VRstatus"></span>
amandaghassaei's avatar
adding ui for vr    
amandaghassaei committed
617
618 
                <a class="about floatRight" href="#" id="aboutVR"><span class="fui-question-circle"></span></a><br/>
                <div id="VRoptions">
amandaghassaei's avatar
small fixes    
amandaghassaei committed
619
amandaghassaei's avatar
adding ui for vr    
amandaghassaei committed
620 
                </div>
amandaghassaei's avatar
camera controls    
amandaghassaei committed
621 
            </div><br/>
amandaghassaei's avatar
animation settings    
amandaghassaei committed
622 
            View Angle:<br/><br/>
amandaghassaei's avatar
camera controls    
amandaghassaei committed
623 
            <div class="indent">
amandaghassaei's avatar
animation settings    
amandaghassaei committed
624
625
626
627
628
629 
                <a href="#" id="cameraZ" class="paddingBottom btn btn-lg btn-default">Front</a>
                <a href="#" id="cameraMinusZ" class="paddingBottom btn btn-lg btn-default">Back</a>
                <a href="#" id="cameraX" class="paddingBottom btn btn-lg btn-default">Right</a>
                <a href="#" id="cameraMinusX" class="paddingBottom btn btn-lg btn-default">Left</a><br/>
                <a href="#" id="cameraY" class="btn btn-lg btn-default">Top</a>
                <a href="#" id="cameraMinusY" class="btn btn-lg btn-default">Bottom</a>
amandaghassaei's avatar
camera controls    
amandaghassaei committed
630 
                <a href="#" id="cameraOrtho" class="btn btn-lg btn-default">Ortho</a>
amandaghassaei's avatar
adding ui for vr    
amandaghassaei committed
631 
            </div>
amandaghassaei's avatar
reorganizing    
amandaghassaei committed
632
633
634 
        </div>
    </div>
</div>
amandaghassaei's avatar
starting app  
amandaghassaei committed
635
636
637
638
639 
<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
cleaning up    
amandaghassaei committed
640
641 
                    <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
642
643
644
645 
                    <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
small changes    
amandaghassaei committed
646 
                    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
647
648
649
650 
                    <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
651 
                    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
starting app  
amandaghassaei committed
652
653
654
655
656 
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
small changes    
amandaghassaei committed
657
658
659
660
661 
<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
more files and doc    
amandaghassaei committed
662
663 
                    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
more documentation    
amandaghassaei committed
664
665
666
667
668
669
670
671
672
673
674
675
676 
                    <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
documentation    
amandaghassaei committed
677
678 
                    <ul>
                        <li>The SVG importer supports path objects and line objects (coming).  Please convert polygons to paths before importing.</li>
amandaghassaei's avatar
docs    
amandaghassaei committed
679
680
681 
                        <li>Valley folds are <span style="color:red">red</span> - rgb(255, 0, 0), hex #ff0000</li>
                        <li>Mountain folds are <span style="color:blue">blue</span> - rgb(0, 0, 255), hex #0000ff</li>
                        <li>Outline edges are <span style="color:black">black</span> - rgb(0, 0, 0), hex #000000</li>
amandaghassaei's avatar
documentation    
amandaghassaei committed
682
683 
                        <img src="assets/examplepattern.jpg"/>
                        <li>This tool will automatically triangulate regions in the pattern that form polygons with more than three sides.
amandaghassaei's avatar
docs    
amandaghassaei committed
684
685 
                        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
documentation    
amandaghassaei committed
686
687
688 
                        <img src="assets/patternwithtriangulations.jpg"/>
                        <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
689 
                        (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
documentation    
amandaghassaei committed
690
691
692 
                        <li>This tool should be able to automatically clean files of slightly misaligned vertices, stray vertices,
                        duplicate lines (coming), and extra vertices falling in the middle of an edge (coming),
                        but it is recommended to remove these errors yourself in order to avoid problems.</li>
amandaghassaei's avatar
small changes    
amandaghassaei committed
693 
                        <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
documentation    
amandaghassaei committed
694
695
696
697
698 
                    </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
small changes    
amandaghassaei committed
699 
                        <li>If you are starting with a pre-made vector file, first ungroup any groups, release all compound paths
amandaghassaei's avatar
documentation    
amandaghassaei committed
700
701
702
703
704 
                        (<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
small changes    
amandaghassaei committed
705 
                        <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
documentation    
amandaghassaei committed
706 
                    </ul>
amandaghassaei's avatar
small changes    
amandaghassaei committed
707
708
709
710
711 
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
adding ui for vr    
amandaghassaei committed
712
713
714
715
716
717
718 
<div class="modal fade" id="aboutVRmodal" 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
doc    
amandaghassaei committed
719
720
721
722
723 
                <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
small changes    
amandaghassaei committed
724 
                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
725
726
727
728 
                put the app in an interactive VR mode.  The hand controllers will allow you to grab the origami mesh and pull on it.
                This is especially cool if you set the mesh material to <b>Axial Strain Visualization</b> so you can see how your interactions
                change the internal strains in the material.
                <br/><br/>
amandaghassaei's avatar
small changes    
amandaghassaei committed
729 
                If the simulation looks choppy, consider lowering the <b>Num simulation per render</b> setting in the right hand menu.
amandaghassaei's avatar
doc    
amandaghassaei committed
730
731
732
733
734
735
736
737
738
739
740
741 
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<div class="modal fade" id="aboutAnimationModal" 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
small changes    
amandaghassaei committed
742 
                <p><b>Animation Settings</b><br/><br/>
amandaghassaei's avatar
doc    
amandaghassaei committed
743
744
745
746
747 
                The dynamic simulation is calculated by moving time forward in small <b>&Delta; t</b> steps, solving the system, and moving 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>Stiffness Settings</b> section: more stiff settings
                require shorter time steps to solve and will slow down the simulation.<br/>
                <br/>
amandaghassaei's avatar
small changes    
amandaghassaei committed
748 
                <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
749
750 
                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
small changes    
amandaghassaei committed
751 
                </p>
amandaghassaei's avatar
adding ui for vr    
amandaghassaei committed
752
753
754
755 
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
save stl    
amandaghassaei committed
756
757
758
759
760
761
762 
<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
save fold options    
amandaghassaei committed
763
764
765
766 
                <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
save fold working    
amandaghassaei committed
767 
                <span class="smallTxt">(the STL file format is unitless, but typically assumed to be either in inches or mm)</span><br/>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
768
769
770
771 
                <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
save stl    
amandaghassaei committed
772
773 
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
save fold options    
amandaghassaei committed
774 
                <button id="doSTLsave" type="button" class="actionButton btn btn-success" data-dismiss="modal">Save</button>
amandaghassaei's avatar
save stl    
amandaghassaei committed
775
776
777
778 
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
obj export    
amandaghassaei committed
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801 
<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
save fold options    
amandaghassaei committed
802
803
804
805
806
807
808 
<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
save fold options    
amandaghassaei committed
809 
                <b>Export FOLD</b><br/><br/>
amandaghassaei's avatar
save fold working    
amandaghassaei committed
810 
                Filename: &nbsp;&nbsp;<input id="foldFilename" value="" placeholder="" class="bigInput text form-control" type="text"> .fold<br/><br/>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
811
812
813
814 
                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
save fold working    
amandaghassaei committed
815 
                    <button data-toggle="dropdown" class="btn btn-default dropdown-toggle" type="button"><span class="unitsDisplay"></span> <span class="caret"></span></button>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
816 
                    <ul id="unitsDropdown" role="menu" class="dropdown-menu">
amandaghassaei's avatar
save fold working    
amandaghassaei committed
817
818
819
820
821
822
823
824 
                        <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
save fold options    
amandaghassaei committed
825
826
827 
                    </ul>
                </div>
                <br/><br/>
amandaghassaei's avatar
save fold working    
amandaghassaei committed
828
829
830
831
832
833
834
835
836
837 
                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
save fold options    
amandaghassaei committed
838
839 
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
save fold options    
amandaghassaei committed
840 
                <button id="doFOLDsave" type="button" class="actionButton btn btn-success" data-dismiss="modal">Save</button>
amandaghassaei's avatar
save fold options    
amandaghassaei committed
841
842
843
844 
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
errors    
amandaghassaei committed
845
846
847
848
849
850
851 
<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
save fold options    
amandaghassaei committed
852 
                <b>Import FOLD</b><br/><br/>
amandaghassaei's avatar
recenter geo after user interaction    
amandaghassaei committed
853 
                <label class="bigLabel checkbox" for="foldUseAngles">
amandaghassaei's avatar
small changes    
amandaghassaei committed
854
855
856 
                    <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
857
858 
            </div>
            <div class="modal-footer">
amandaghassaei's avatar
small changes    
amandaghassaei committed
859 
                <button data-dismiss="modal" type="button" class="btn btn-success">OK</button>
amandaghassaei's avatar
errors    
amandaghassaei committed
860
861
862
863
864
865
866
867
868
869
870
871
872
873 
            </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
global error    
amandaghassaei committed
874
875
876
877
878
879
880
881 
<div class="modal fade" id="aboutErrorModal" 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>
                <p><b>Simulation Error</b><br/><br/>
amandaghassaei's avatar
doc    
amandaghassaei committed
882 
                    <b>Average node error</b> gives a sense of how much the distance constraints in the
amandaghassaei's avatar
global error    
amandaghassaei committed
883
884
885 
                    origami pattern are being violated.  The error at each node is evaluated by averaging the
                    percent deviation of all its distance constraints with adjacent nodes.  This error is
                    reported as a percent of the total length of the distance constraint to remove scaling effects.
amandaghassaei's avatar
axial strain    
amandaghassaei committed
886
887
888 
                    <br/><br/>
                    This measurement is equivalent to <a href="https://en.wikipedia.org/wiki/Deformation_(mechanics)#Engineering_strain" target="_blank">
                        Cauchy strain or engineering strain</a> of the axial constraints on this system.
amandaghassaei's avatar
doc    
amandaghassaei committed
889 
                    Increasing the <b>Axial Stiffness</b> will tighten these constraints and
amandaghassaei's avatar
global error    
amandaghassaei committed
890
891 
                    lower the error in the simulation.<br/>
                    <br/>
amandaghassaei's avatar
doc    
amandaghassaei committed
892 
                    To visualize the error of each node graphically, select <b>Axial Strain Visualization</b> under <b>Mesh Material</b>
amandaghassaei's avatar
global error    
amandaghassaei committed
893
894
895
896
897
898 
                     in the left menu.
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
about modals    
amandaghassaei committed
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940 
<div class="modal fade" id="aboutStiffnessModal" 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>
                <p><b>Stiffness Settings</b><br/><br/>
                    ....
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<div class="modal fade" id="aboutDynamicSimModal" 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>
                <p><b>Compliant Dynamic Simulation</b><br/><br/>
                    ....
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
<div class="modal fade" id="aboutStaticSimModal" 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>
                <p><b>Compliant Static Simulation</b><br/><br/>
                    ....
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
small changes    
amandaghassaei committed
941
942
943
944
945
946
947
948
949
950
951
952
953
954 
<div class="modal fade" id="aboutAxialStrainModal" 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>
                <p><b>Axial Strain</b><br/><br/>
                    ....
                </p>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
amandaghassaei's avatar
starting app  
amandaghassaei committed
955
956 
</body>
</html>