adding in creases

dependencies/earcut.js

 'use strict';
 
-module.exports = earcut;
+// module.exports = earcut;
 
 function earcut(data, holeIndices, dim) {
 

js/model.js

@@ -28,31 +28,25 @@ function initModel(globals){
     var creases = [];
     creases.push(new Crease(edges[2], 1, 0, Math.PI/2, 1, nodes[3], nodes[1], 0));
 
-    function buildModel(_faces, _vertices, _allEdges, numOutline, numMountians, numValleys, numCuts){
+    function buildModel(_faces, _vertices, _allEdges, allCreaseParams, numOutline, numMountians, numValleys, numCuts){
 
         var _nodes = [];
         for (var i=0;i<_vertices.length;i++){
             _nodes.push(new Node(_vertices[i].clone(), _nodes.length));
         }
-        // _nodes[0].setFixed(true);
-        // _nodes[1].setFixed(true);
-        // _nodes[2].setFixed(true);
+        _nodes[0].setFixed(true);
+        _nodes[1].setFixed(true);
+        _nodes[2].setFixed(true);
 
         var _edges = [];
-        var _creases = [];
-        for (var i=0;i<_allEdges.length;i++){
+        for (var i=0;i<_allEdges.length;i++) {
             _edges.push(new Beam([_nodes[_allEdges[i][0]], _nodes[_allEdges[i][1]]]));
-            if (i<numOutline){
-                //no crease
-            } else if (i<numMountians){
-                // _creases.push(new Crease(_edges[i], 1, 0, Math.PI, 1, nodes[3], nodes[1], 0));
-            } else if (i<numValleys){
-
-            } else if (i<numCuts){
-
-            } else {
-                console.warn("unknown edge type");
         }
+
+        var _creases = [];
+        for (var i=0;i<allCreaseParams.length;i++) {
+            var creaseParams = allCreaseParams[i];//face1Ind, vertInd, face2Ind, ver2Ind, edgeInd, angle
+            _creases.push(new Crease(_edges[creaseParams[4]], creaseParams[0], creaseParams[2], creaseParams[5], 1, _nodes[creaseParams[1]], _nodes[creaseParams[3]], _creases.length));
         }
 
         globals.threeView.sceneClearModel();

js/pattern.js

@@ -165,10 +165,55 @@ function initPattern(globals){
         drawPattern(faces);
         globals.threeView.render();
 
-        globals.model.buildModel(faces, vertices, allEdges, outlines.length, outlines.length+mountains.length,
+        var allCreaseParams = getFacesAndVerticesForEdges(faces, allEdges);
+
+        globals.model.buildModel(faces, vertices, allEdges, allCreaseParams, outlines.length, outlines.length+mountains.length,
             outlines.length+mountains.length+valleys.length, outlines.length+mountains.length+valleys.length+cuts.length);
     }
 
+    function getFacesAndVerticesForEdges(faces, allEdges){
+        var allCreaseParams = [];//face1Ind, vertInd, face2Ind, ver2Ind, edgeInd, angle
+        for (var i=outlines.length;i<outlines.length+mountains.length+valleys.length;i++){
+            var v1 = allEdges[i][0];
+            var v2 = allEdges[i][1];
+            var creaseParams = [];
+            for (var j=0;j<faces.length;j++){
+                var face = faces[j];
+                var faceVerts = [face.a, face.b, face.c];
+                var v1Index = faceVerts.indexOf(v1);
+                if (v1Index>=0){
+                    var v2Index = faceVerts.indexOf(v2);
+                    if (v2Index>=0){
+                        creaseParams.push(j);
+                        if (v2Index>v1Index) {
+                            faceVerts.splice(v2Index, 1);
+                            faceVerts.splice(v1Index, 1);
+                        } else {
+                            faceVerts.splice(v1Index, 1);
+                            faceVerts.splice(v2Index, 1);
+                        }
+                        creaseParams.push(faceVerts[0]);
+                        if (creaseParams.length == 4) {
+                            creaseParams.push(i);
+                            if (i<(outlines.length+mountains.length+valleys.length)){
+                                var angle = Math.PI;
+                                if (i<(outlines.length+mountains.length)){
+                                    angle *= -1;
+                                }
+                                creaseParams.push(angle);
+                            } else {
+                                creaseParams.push(0);
+                            }
+                            allCreaseParams.push(creaseParams);
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        return allCreaseParams;
+    }
+
     function mergeVertices(){
 
         vertices = verticesRaw.slice();