mirror of
https://github.com/xibyte/jsketcher
synced 2025-12-10 10:25:36 +01:00
795 lines
23 KiB
JavaScript
795 lines
23 KiB
JavaScript
TCAD.workbench = {};
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TCAD.workbench.SketchConnection = function(a, b, sketchObject) {
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this.a = a;
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this.b = b;
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this.sketchObject = sketchObject;
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};
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TCAD.workbench._SKETCH_OBJ_COUNTER = 0;
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TCAD.workbench.readSketchGeom = function(sketch) {
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function genId() {
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return TCAD.workbench._SKETCH_OBJ_COUNTER++;
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}
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var out = {connections : [], loops : []};
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if (sketch.layers !== undefined) {
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for (var l = 0; l < sketch.layers.length; ++l) {
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for (var i = 0; i < sketch.layers[l].data.length; ++i) {
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var obj = sketch.layers[l].data[i];
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if (obj.edge !== undefined) continue;
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if (!!obj.aux) continue;
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if (obj._class === 'TCAD.TWO.Segment') {
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var a = new TCAD.Vector(obj.points[0][1][1], obj.points[0][2][1], 0);
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var b = new TCAD.Vector(obj.points[1][1][1], obj.points[1][2][1], 0);
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out.connections.push(new TCAD.workbench.SketchConnection(a, b, {_class : obj._class, id : genId()}));
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} else if (obj._class === 'TCAD.TWO.Arc') {
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var a = new TCAD.Vector(obj.points[0][1][1], obj.points[0][2][1], 0);
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var b = new TCAD.Vector(obj.points[1][1][1], obj.points[1][2][1], 0);
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var center = new TCAD.Vector(obj.points[2][1][1], obj.points[2][2][1], 0);
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var approxArc = TCAD.workbench.approxArc(a, b, center, 20);
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var data = {_class : obj._class, id : genId()};
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for (var j = 0; j < approxArc.length - 1; j++) {
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out.connections.push(new TCAD.workbench.SketchConnection(approxArc[j], approxArc[j+1], data));
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}
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} else if (obj._class === 'TCAD.TWO.Circle') {
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var center = new TCAD.Vector(obj.c[1][1], obj.c[2][1], 0);
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var approxCircle = TCAD.workbench.approxCircle(center, obj.r, 20);
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var data = {_class : obj._class, id : genId()};
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var loop = [];
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var p, q, n = approxCircle.length;
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for (var p = n - 1, q = 0; q < n; p = q++) {
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loop.push(new TCAD.workbench.SketchConnection(approxCircle[p], approxCircle[q], data));
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}
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out.loops.push(loop);
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}
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}
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}
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}
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return out;
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};
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TCAD.workbench.approxArc = function(ao, bo, c, resolution) {
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var a = ao.minus(c);
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var b = bo.minus(c);
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var points = [ao];
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var abAngle = Math.atan2(b.y, b.x) - Math.atan2(a.y, a.x);
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if (abAngle > Math.PI * 2) abAngle = Math.PI / 2 - abAngle;
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if (abAngle < 0) abAngle = Math.PI * 2 + abAngle;
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var r = a.length();
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resolution = 1;
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//var step = Math.acos(1 - ((resolution * resolution) / (2 * r * r)));
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var step = resolution / (2 * Math.PI);
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var k = Math.round(abAngle / step);
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var angle = Math.atan2(a.y, a.x) + step;
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for (var i = 0; i < k - 1; ++i) {
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points.push(new TCAD.Vector(c.x + r*Math.cos(angle), c.y + r*Math.sin(angle)));
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angle += step;
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}
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points.push(bo);
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return points;
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};
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TCAD.workbench.approxCircle = function(c, r, resolution) {
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var points = [];
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resolution = 1;
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//var step = Math.acos(1 - ((resolution * resolution) / (2 * r * r)));
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var step = resolution / (2 * Math.PI);
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var k = Math.round((2 * Math.PI) / step);
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for (var i = 0, angle = 0; i < k; ++i, angle += step) {
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points.push(new TCAD.Vector(c.x + r*Math.cos(angle), c.y + r*Math.sin(angle)));
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}
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return points;
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};
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TCAD.workbench.serializeSolid = function(solid) {
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var data = {};
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data.faceCounter = TCAD.geom.FACE_COUNTER;
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for (var fi = 0; fi < solid.faces.length; ++fi) {
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var face = solid.faces[fi];
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var faceData = {};
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faceData.id = face.id;
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}
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return data;
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};
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TCAD.craft = {};
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TCAD.craft.getSketchedPolygons3D = function(app, face) {
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var savedFace = localStorage.getItem(app.faceStorageKey(face.id));
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if (savedFace == null) return null;
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var geom = TCAD.workbench.readSketchGeom(JSON.parse(savedFace));
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var polygons2D = TCAD.utils.sketchToPolygons(geom);
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var normal = face.csgGroup.normal;
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var depth = null;
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var sketchedPolygons = [];
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for (var i = 0; i < polygons2D.length; i++) {
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var poly2D = polygons2D[i];
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if (poly2D.length < 3) continue;
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if (depth == null) {
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var _3dTransformation = new TCAD.Matrix().setBasis(face.basis());
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//we lost depth or z off in 2d sketch, calculate it again
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depth = face.csgGroup.plane.w;
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}
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var polygon = [];
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for (var m = 0; m < poly2D.length; ++m) {
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var vec = poly2D[m];
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vec.z = depth;
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// var a = _3dTransformation.apply(new TCAD.Vector(poly2D[m][0], poly2D[m][1], depth));
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var a = _3dTransformation.apply(vec);
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a.sketchConnectionObject = vec.sketchConnectionObject;
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polygon.push(a);
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}
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sketchedPolygons.push(polygon);
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}
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return sketchedPolygons;
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};
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TCAD.craft.extrude = function(app, request) {
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var face = request.face;
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var sketchedPolygons = TCAD.craft.getSketchedPolygons3D(app, face);
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if (sketchedPolygons == null) return null;
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var normal = TCAD.utils.vec(face.csgGroup.plane.normal);
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var toMeldWith = [];
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for (var i = 0; i < sketchedPolygons.length; i++) {
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var extruded = TCAD.geom.extrude(sketchedPolygons[i], normal, request.params.target, request.params.expansionFactor );
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toMeldWith = toMeldWith.concat(extruded);
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}
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var solid = request.solids[0];
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var meld = CSG.fromPolygons(TCAD.craft._triangulateCSG(toMeldWith));
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if (solid.mergeable) {
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meld = solid.csg.union(meld);
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}
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face.csgGroup.shared.__tcad.faceId += '$';
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return [TCAD.utils.createSolidMesh(meld).geometry];
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};
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TCAD.craft._pointOnLine = function(p, a, b) {
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var ab = a.minus(b);
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var ap = a.minus(p);
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var dp = ab.dot(ap);
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var abLength = ab.length();
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var apLength = ap.length();
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return apLength > 0 && apLength < abLength && TCAD.utils.areEqual(abLength * apLength, dp, 1E-6);
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};
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TCAD.craft.polygonsToSegments = function(polygons) {
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var segmentsByPolygon = [];
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for (var pi = 0; pi < polygons.length; pi++) {
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var segments = [];
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var poly = polygons[pi];
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var p, q, n = poly.vertices.length;
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for(p = n - 1, q = 0; q < n; p = q ++) {
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var a = poly.vertices[p];
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var b = poly.vertices[q];
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segments.push([a.pos, b.pos]);
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}
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segmentsByPolygon.push(segments);
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}
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return segmentsByPolygon;
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};
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TCAD.craft.reconstructSketchBounds = function(csg, face, strict) {
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strict = strict || false;
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var polygons = csg.toPolygons();
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var plane = face.csgGroup.plane;
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var outerEdges = [];
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var planePolygons = [];
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for (var pi = 0; pi < polygons.length; pi++) {
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var poly = polygons[pi];
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if (TCAD.utils.equal(poly.plane.normal.dot(plane.normal), 1)) {
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if (TCAD.utils.equal(plane.w, poly.plane.w) && (!strict || !!poly.shared.__tcad && poly.shared.__tcad.faceId === face.id)) {
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planePolygons.push(poly);
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}
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continue;
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}
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var p, q, n = poly.vertices.length;
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for(p = n - 1, q = 0; q < n; p = q ++) {
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var a = poly.vertices[p];
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var b = poly.vertices[q];
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var pointAOnPlane = TCAD.utils.equal(plane.signedDistanceToPoint(a.pos), 0);
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if (!pointAOnPlane) continue;
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var pointBOnPlane = TCAD.utils.equal(plane.signedDistanceToPoint(b.pos), 0);
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if (pointBOnPlane) {
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outerEdges.push([a.pos, b.pos, poly]);
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}
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}
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}
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var outline = TCAD.craft.findOutline(planePolygons);
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TCAD.craft.pickUpCraftInfo(outline, outerEdges);
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return TCAD.craft.segmentsToPaths(outline);
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};
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TCAD.craft.pickUpCraftInfo = function(outline, outerEdges) {
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var eq = TCAD.utils.strictEqual;
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for (var psi1 = 0; psi1 < outline.length; psi1++) {
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var s1 = outline[psi1];
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for (var psi2 = 0; psi2 < outerEdges.length; psi2++) {
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var s2 = outerEdges[psi2];
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if (TCAD.utils.equal(Math.abs(s1[0].minus(s1[1]).unit().dot(s2[0].minus(s2[1]).unit())), 1) &&
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(eq(s1[0], s2[0]) || eq(s1[1], s2[1]) || eq(s1[0], s2[1]) || eq(s1[1], s2[0]) ||
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TCAD.craft._pointOnLine(s1[0], s2[0], s2[1]) || TCAD.craft._pointOnLine(s1[1], s2[0], s2[1]))) {
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s1[2] = s2[2];
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}
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}
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}
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};
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TCAD.craft.findOutline = function(planePolygons) {
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var segmentsByPolygon = TCAD.craft.polygonsToSegments(planePolygons);
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TCAD.craft.simplifySegments(segmentsByPolygon);
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var planeSegments = TCAD.utils.arrFlatten1L(segmentsByPolygon);
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planeSegments = TCAD.craft.removeSharedEdges(planeSegments);
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return planeSegments;
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};
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TCAD.craft.removeSharedEdges = function(segments) {
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segments = segments.slice();
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var eq = TCAD.utils.strictEqual;
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for (var psi1 = 0; psi1 < segments.length; psi1++) {
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var s1 = segments[psi1];
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if (s1 == null) continue;
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for (var psi2 = 0; psi2 < segments.length; psi2++) {
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if (psi1 === psi2) continue;
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var s2 = segments[psi2];
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if (s2 == null) continue;
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if ((eq(s1[0], s2[0]) && eq(s1[1], s2[1]) || (eq(s1[0], s2[1]) && eq(s1[1], s2[0])))) {
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segments[psi1] = null;
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segments[psi2] = null;
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}
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}
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}
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return segments.filter(function(e) {return e !== null});
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};
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TCAD.craft.simplifySegments = function(polygonToSegments) {
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for (var pi1 = 0; pi1 < polygonToSegments.length; ++pi1) {
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for (var pi2 = 0; pi2 < polygonToSegments.length; ++pi2) {
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if (pi1 === pi2) continue;
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var polygon1 = polygonToSegments[pi1];
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var polygon2 = polygonToSegments[pi2];
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for (var si1 = 0; si1 < polygon1.length; ++si1) {
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var seg1 = polygon1[si1];
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for (var si2 = 0; si2 < polygon2.length; ++si2) {
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var point = polygon2[si2][0];
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if (TCAD.craft._pointOnLine(point, seg1[0], seg1[1])) {
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polygon1.push([point, seg1[1]]);
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seg1[1] = point;
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}
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}
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}
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}
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}
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};
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TCAD.craft.deleteRedundantPoints = function(path) {
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var cleanedPath = [];
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//Delete redundant point
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var pathLength = path.length;
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for (var pi = 0; pi < pathLength; pi++) {
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var bIdx = ((pi + 1) % pathLength);
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var a = path[pi];
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var b = path[bIdx];
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var c = path[(pi + 2) % pathLength];
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var eq = TCAD.utils.areEqual;
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if (!eq(a.minus(b).unit().dot(a.minus(c).unit()), 1, 1E-9)) {
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cleanedPath.push(b);
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for (var ii = 0; ii < pathLength - pi - 1; ++ii) {
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a = path[(ii + bIdx) % pathLength];
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b = path[(ii + bIdx + 1) % pathLength];
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c = path[(ii + bIdx + 2) % pathLength];
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if (!eq(a.minus(b).unit().dot(a.minus(c).unit()), 1, 1E-9)) {
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cleanedPath.push(b);
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}
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}
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break;
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}
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}
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return cleanedPath;
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};
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TCAD.craft.segmentsToPaths = function(segments) {
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var veq = TCAD.struct.hashTable.vectorEquals;
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var paths = [];
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var index = TCAD.struct.hashTable.forVector3d();
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var csgIndex = TCAD.struct.hashTable.forEdge();
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function indexPoint(p, edge) {
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var edges = index.get(p);
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if (edges === null) {
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edges = [];
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index.put(p, edges);
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}
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edges.push(edge);
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}
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for (var si = 0; si < segments.length; si++) {
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var k = segments[si];
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indexPoint(k[0], k);
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indexPoint(k[1], k);
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var csgInfo = k[2];
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if (csgInfo !== undefined && csgInfo !== null) {
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csgIndex.put([k[0], k[1]], csgInfo);
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}
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k[3] = false;
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}
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function nextPoint(p) {
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var edges = index.get(p);
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if (edges === null) return null;
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for (var i = 0; i < edges.length; i++) {
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var edge = edges[i];
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if (edge[3]) continue;
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var res = null;
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if (veq(p, edge[0])) res = edge[1];
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if (veq(p, edge[1])) res = edge[0];
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if (res != null) {
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edge[3] = true;
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return res;
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}
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}
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return null;
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}
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for (var ei = 0; ei < segments.length; ei++) {
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var edge = segments[ei];
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if (edge[3]) {
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continue;
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}
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edge[3] = true;
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var path = [edge[0], edge[1]];
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paths.push(path);
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var next = nextPoint(edge[1]);
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while (next !== null) {
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if (!veq(next, path[0])) {
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path.push(next);
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next = nextPoint(next);
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} else {
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next = null;
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}
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}
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}
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var filteredPaths = [];
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for (var i = 0; i < paths.length; i++) {
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var path = paths[i];
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//Set derived from object to be able to recunstruct
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TCAD.utils.iteratePath(path, 0, function (a, b) {
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var fromPolygon = csgIndex.get([a, b]);
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if (fromPolygon !== null) {
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if (fromPolygon.shared.__tcad.csgInfo) {
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a.sketchConnectionObject = fromPolygon.shared.__tcad.csgInfo.derivedFrom;
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}
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}
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return true;
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});
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path = TCAD.craft.deleteRedundantPoints(path);
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if (path.length > 2) {
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filteredPaths.push({
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vertices: path
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});
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}
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}
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return filteredPaths;
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};
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TCAD.craft._triangulateCSG = function(polygons) {
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function csgVec(v) {
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return new CSG.Vector3D(v.x, v.y, v.z);
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}
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var triangled = [];
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for (var ei = 0; ei < polygons.length; ++ei) {
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var poly = polygons[ei];
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var points = poly.vertices;
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var refs = TCAD.geom.triangulate(points, poly.plane.normal);
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for ( var i = 0; i < refs.length; ++ i ) {
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var a = refs[i][0];
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var b = refs[i][1];
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var c = refs[i][2];
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//magnitude of cross product is the area of parallelogram
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var area = points[b].pos.minus(points[a].pos).cross(points[c].pos.minus(points[a].pos)).length() / 2.0;
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if (area < TCAD.TOLERANCE) {
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continue;
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}
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var csgPoly = new CSG.Polygon([points[a], points[b], points[c]], poly.shared, poly.plane);
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triangled.push(csgPoly);
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}
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}
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return triangled;
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};
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TCAD.craft.splitTwoSegments = function (a, b) {
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var da = a[1].minus(a[0]);
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var db = b[1].minus(b[0]);
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var dc = b[0].minus(a[0]);
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var daXdb = da.cross(db);
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if (Math.abs(dc.dot(daXdb)) > 1e-6) {
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// lines are not coplanar
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return null;
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}
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var veq = TCAD.utils.vectorsEqual;
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if (veq(a[0], b[0]) || veq(a[0], b[1]) || veq(a[1], b[0]) || veq(a[1], b[1])) {
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return null;
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}
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var dcXdb = dc.cross(db);
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var s = dcXdb.dot(daXdb) / daXdb.lengthSquared();
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if (s > 0.0 && s < 1.0) {
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var ip = a[0].plus(da.times(s));
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function _split(s, ip) {
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if (s[0].equals(ip) || s[1].equals(ip)) {
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return [s];
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}
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return [[s[0], ip, s[2]], [ip, s[1], s[2]]]
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}
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return {
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splitterParts : _split(a, ip),
|
|
residual : _split(b, ip)
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
TCAD.craft.attract = function(vectors, precision) {
|
|
var eq = TCAD.utils.areEqual();
|
|
var dist = TCAD.math.distanceAB3;
|
|
vectors = vectors.slice();
|
|
for (var i = 0; i < vectors.length; i++) {
|
|
var v1 = vectors[i];
|
|
if (v1 == null) continue;
|
|
for (var j = i + 1; j < vectors.length; j++) {
|
|
var v2 = vectors[j];
|
|
if (v2 == null) continue;
|
|
if (dist(v1, v2) <= precision) {
|
|
TCAD.Vector.prototype.setV.call(v2, v1);
|
|
vectors[j] = null;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
TCAD.craft.recoverySketchInfo = function(polygons) {
|
|
var nonStructuralGons = [];
|
|
var sketchEdges = TCAD.struct.hashTable.forDoubleArray();
|
|
function key(a, b) {return [a.x, a.y, b.x, b.y]};
|
|
|
|
for (var pi = 0; pi < polygons.length; pi++) {
|
|
var poly = polygons[pi];
|
|
var paths = [];
|
|
poly.collectPaths(paths);
|
|
for (var i = 0; i < paths.length; i++) {
|
|
var path = paths[i];
|
|
if (poly.csgInfo !== undefined && poly.csgInfo.derivedFrom !== undefined) {
|
|
var n = path.length;
|
|
for (var p = n - 1, q = 0; q < n ; p = q++ ) {
|
|
sketchEdges.put(key(path[p], path[q]), poly.csgInfo);
|
|
}
|
|
} else {
|
|
nonStructuralGons.push(path);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (var i = 0; i < nonStructuralGons.length; i++) {
|
|
var path = nonStructuralGons[i];
|
|
var n = path.length;
|
|
for (var p = n - 1, q = 0; q < n ; p = q++ ) {
|
|
var csgInfo = sketchEdges.get(key(path[p], path[q]));
|
|
if (csgInfo === null) {
|
|
csgInfo = sketchEdges.get(key(path[q], path[p]));
|
|
}
|
|
if (csgInfo) {
|
|
path[p].sketchConnectionObject = csgInfo.derivedFrom;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
TCAD.craft.reconstruct = function (cut) {
|
|
function pInP(p1, p2) {
|
|
var notEqPoints = [];
|
|
|
|
for (var i = 0; i < p1.length; ++i) {
|
|
var v1 = p1[i];
|
|
for (var j = 0; j < p2.length; ++j) {
|
|
var v2 = p2[j];
|
|
if (!v1.equals(v2)) {
|
|
notEqPoints.push(v1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (notEqPoints.length == 0) {
|
|
return true;
|
|
}
|
|
|
|
for (var i = 0; i < notEqPoints.length; ++i) {
|
|
var v = notEqPoints[i];
|
|
if (!TCAD.utils.isPointInsidePolygon(v, p2)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function sortPaths(paths3D) {
|
|
|
|
var transforms = TCAD.struct.hashTable.forVector3d();
|
|
|
|
var paths = paths3D.map(function(path) {
|
|
var tr = transforms.get(path.normal);
|
|
if (tr === null) {
|
|
var _3dTransformation = new TCAD.Matrix().setBasis(TCAD.geom.someBasis(path.vertices, path.normal));
|
|
var tr = _3dTransformation.invert();
|
|
transforms.put(path.normal, tr);
|
|
}
|
|
|
|
return {
|
|
vertices : path.vertices.map(function(v) {return tr.apply(v);}),
|
|
normal : path.normal,
|
|
shared : path.shared
|
|
}
|
|
});
|
|
|
|
var index = [];
|
|
for (var pi = 0; pi < paths.length; ++pi) {
|
|
index[pi] = [];
|
|
paths3D[pi].holes = [];
|
|
}
|
|
|
|
for (var pi = 0; pi < paths.length; ++pi) {
|
|
var path = paths[pi];
|
|
for (var piTest = 0; piTest < paths.length; ++piTest) {
|
|
var pathTest = paths[piTest];
|
|
if (piTest === pi) continue;
|
|
if (pInP(pathTest.vertices, path.vertices)) {
|
|
index[piTest].push(pi);
|
|
}
|
|
}
|
|
}
|
|
function collect(master, level) {
|
|
var success = false;
|
|
for (var i = 0; i < index.length; ++i) {
|
|
var masters = index[i];
|
|
if (level != masters.length) continue;
|
|
for (var j = 0; j < masters.length; ++j) {
|
|
var m = masters[j];
|
|
if (m === master) {
|
|
paths3D[m].holes.push(paths3D[i])
|
|
success = true;
|
|
}
|
|
}
|
|
}
|
|
return success;
|
|
}
|
|
|
|
for (var success = true, level = 1;
|
|
level < paths3D.length && success;
|
|
level ++, success = false) {
|
|
|
|
for (var i = 0; i < index.length; ++i) {
|
|
var masters = index[i];
|
|
if (masters.length == level - 1) {
|
|
if (collect(i, level)) {
|
|
success = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function separate(path, separated) {
|
|
separated.push(path);
|
|
for (var i = 0; i < path.holes.length; ++i) {
|
|
var hole = path.holes[i];
|
|
for (var j = 0; j < hole.holes.length; ++j) {
|
|
var inner = hole.holes[j];
|
|
separate(inner, separated)
|
|
}
|
|
}
|
|
}
|
|
|
|
var separated = [];
|
|
for (var i = 0; i < index.length; ++i) {
|
|
var masters = index[i];
|
|
if (masters.length == 0) {
|
|
separate(paths3D[i], separated);
|
|
}
|
|
}
|
|
return separated;
|
|
}
|
|
|
|
var byShared = {};
|
|
for (var i = 0; i < cut.polygons.length; i++) {
|
|
var p = cut.polygons[i];
|
|
var tag = p.shared.getTag();
|
|
if (byShared[tag] === undefined) byShared[tag] = [];
|
|
byShared[tag].push(p);
|
|
}
|
|
var result = [];
|
|
var allPoints = [];
|
|
for (var tag in byShared) {
|
|
var merged = TCAD.craft._mergeCSGPolygons(byShared[tag], allPoints);
|
|
var sorted = sortPaths(merged);
|
|
result.push.apply(result, sorted.map(function(path) {
|
|
var p = new TCAD.Polygon(path.vertices, path.holes.map(function (path) {
|
|
return path.vertices
|
|
}), path.normal);
|
|
if (path.shared !== undefined) {
|
|
p.csgInfo = path.shared.csgInfo;
|
|
p.__face = path.shared.face;
|
|
}
|
|
return p;
|
|
})
|
|
);
|
|
}
|
|
TCAD.craft.recoverySketchInfo(result);
|
|
return result;
|
|
};
|
|
|
|
TCAD.craft.collectFaces = function(solids) {
|
|
var faces = [];
|
|
for (var i = 0; i < solids.length; i++) {
|
|
TCAD.utils.addAll(faces, solids[i].polyFaces);
|
|
}
|
|
return faces;
|
|
};
|
|
|
|
TCAD.craft.collectCSGPolygons = function(faces) {
|
|
var out = [];
|
|
for (var fi = 0; fi < faces.length; fi++) {
|
|
var face = faces[fi];
|
|
TCAD.utils.addAll(out, face.csgGroup.toCSGPolygons());
|
|
}
|
|
return out;
|
|
};
|
|
|
|
TCAD.craft.toGroups = function(csgPolygons) {
|
|
|
|
function vec(p) {
|
|
var v = new TCAD.Vector();
|
|
v.setV(p);
|
|
return v;
|
|
}
|
|
|
|
var byShared = {};
|
|
var infos = {};
|
|
for (var i = 0; i < csgPolygons.length; i++) {
|
|
var p = csgPolygons[i];
|
|
var tag = p.shared.getTag();
|
|
infos[tag] = p.shared;
|
|
if (byShared[tag] === undefined) byShared[tag] = [];
|
|
byShared[tag].push(p);
|
|
}
|
|
var result = [];
|
|
for (var tag in byShared) {
|
|
var groupedPolygons = byShared[tag];
|
|
if (groupedPolygons.length === 0) continue;
|
|
var plane = groupedPolygons[0].plane;
|
|
var normal = vec(plane.normal);
|
|
|
|
var simplePolygons = groupedPolygons.map(function (p) {
|
|
|
|
var vertices = p.vertices.map(function (v) {
|
|
return vec(v.pos);
|
|
});
|
|
return new TCAD.SimplePolygon(vertices, normal);
|
|
});
|
|
var csgGroup = new TCAD.CSGGroup(simplePolygons, normal, plane.w);
|
|
var tcadShared = infos[tag].__tcad;
|
|
if (tcadShared !== undefined) {
|
|
csgGroup.csgInfo = tcadShared.csgInfo;
|
|
csgGroup.__face = tcadShared.face;
|
|
}
|
|
result.push(csgGroup);
|
|
}
|
|
return result;
|
|
};
|
|
|
|
TCAD.craft.cut = function(app, request) {
|
|
var face = request.face;
|
|
var sketchedPolygons = TCAD.craft.getSketchedPolygons3D(app, face);
|
|
if (sketchedPolygons == null) return null;
|
|
|
|
var normal = TCAD.utils.vec(face.csgGroup.plane.normal);
|
|
var cutter = [];
|
|
for (var i = 0; i < sketchedPolygons.length; i++) {
|
|
var extruded = TCAD.geom.extrude(sketchedPolygons[i], normal, request.params.target, request.params.expansionFactor );
|
|
cutter = cutter.concat(extruded);
|
|
}
|
|
var cutterCSG = CSG.fromPolygons(TCAD.craft._triangulateCSG(cutter));
|
|
|
|
face.csgGroup.shared.__tcad.faceId += '$';
|
|
var outSolids = [];
|
|
for (var si = 0; si < request.solids.length; si++) {
|
|
var work = request.solids[si].csg;
|
|
var cut = work.subtract(cutterCSG);
|
|
var solidMesh = TCAD.utils.createSolidMesh(cut);
|
|
outSolids.push(solidMesh.geometry);
|
|
}
|
|
return outSolids;
|
|
};
|
|
|
|
TCAD.Craft = function(app) {
|
|
this.app = app;
|
|
this.history = [];
|
|
};
|
|
|
|
TCAD.Craft.prototype.current = function() {
|
|
return this.history[this.history.length - 1];
|
|
};
|
|
|
|
TCAD.craft.detach = function(request) {
|
|
var detachedConfig = {};
|
|
for (var prop in request) {
|
|
if (request.hasOwnProperty(prop)) {
|
|
var value = request[prop];
|
|
if (typeof(value) === 'object' && value.id !== undefined) {
|
|
detachedConfig[prop] = value.id;
|
|
} else {
|
|
detachedConfig[prop] = value;
|
|
}
|
|
}
|
|
}
|
|
return detachedConfig
|
|
};
|
|
|
|
TCAD.Craft.prototype.modify = function(request) {
|
|
|
|
var op = TCAD.craft.OPS[request.type];
|
|
if (!op) return;
|
|
|
|
var newSolids = op(this.app, request);
|
|
|
|
if (newSolids == null) return;
|
|
var i;
|
|
for (i = 0; i < request.solids.length; i++) {
|
|
request.solids[i].vanish();
|
|
}
|
|
for (i = 0; i < newSolids.length; i++) {
|
|
this.app.viewer.workGroup.add(newSolids[i].meshObject);
|
|
}
|
|
this.history.push(TCAD.craft.detach(request));
|
|
this.app.bus.notify('craft');
|
|
|
|
this.app.viewer.render();
|
|
};
|
|
|
|
TCAD.craft.OPS = {
|
|
CUT : TCAD.craft.cut,
|
|
PAD : TCAD.craft.extrude,
|
|
PLANE : function(app, request) {
|
|
return [TCAD.utils.createPlane(request.params.basis, request.params.depth).geometry];
|
|
},
|
|
BOX : function(app, request) {
|
|
return [TCAD.utils.createCSGBox(request.size).geometry];
|
|
}
|
|
};
|