mirror of
https://github.com/xibyte/jsketcher
synced 2025-12-08 01:13:27 +01:00
311 lines
10 KiB
JavaScript
311 lines
10 KiB
JavaScript
TCAD.IO = function(viewer) {
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this.viewer = viewer;
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};
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TCAD.IO.prototype.loadSketch = function(sketchData) {
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return this._loadSketch(JSON.parse(sketchData));
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};
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TCAD.IO.prototype.serializeSketch = function() {
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return JSON.stringify(this._serializeSketch());
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};
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TCAD.IO.prototype._loadSketch = function(sketch) {
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this.cleanUpData();
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var index = {};
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function endPoint(p) {
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var id = p[0];
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var ep = index[id];
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if (ep !== undefined) {
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return
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}
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ep = new TCAD.TWO.EndPoint(p[1][1], p[2][1]);
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index[p[1][0]] = ep._x;
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index[p[2][0]] = ep._y;
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index[id] = ep;
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return ep;
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}
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var layerIdGen = 0;
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function getLayer(viewer, name) {
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if (name === undefined) {
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name = "layer_" + layerIdGen++;
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} else {
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if (name === viewer.dimLayer.name) {
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return viewer.dimLayer;
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}
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for (var i = 0; i < viewer.layers.length; ++i) {
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if (name === viewer.layers[i].name) {
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return viewer.layers[i];
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}
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}
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}
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var layer = new TCAD.TWO.Layer(name, TCAD.TWO.Styles.DEFAULT);
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viewer.layers.push(layer);
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return layer;
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}
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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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var layer = getLayer(this.viewer, sketch.layers[l].name);
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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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var skobj = null;
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if (obj._class === 'TCAD.TWO.Segment') {
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var a = endPoint(obj.points[0]);
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var b = endPoint(obj.points[1]);
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skobj = new TCAD.TWO.Segment(a, b);
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} else if (obj._class === 'TCAD.TWO.EndPoint') {
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skobj = endPoint(obj.location);
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} else if (obj._class === 'TCAD.TWO.Arc') {
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var a = endPoint(obj.points[0]);
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var b = endPoint(obj.points[1]);
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var c = endPoint(obj.points[2]);
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skobj = new TCAD.TWO.Arc(a, b, c);
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skobj.stabilize(this.viewer);
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} else if (obj._class === 'TCAD.TWO.Circle') {
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var c = endPoint(obj.c);
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skobj = new TCAD.TWO.Circle(c);
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skobj.r.set(obj.r);
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} else if (obj._class === 'TCAD.TWO.HDimension') {
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skobj = new TCAD.TWO.HDimension(obj.a, obj.b);
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skobj.flip = obj.flip;
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} else if (obj._class === 'TCAD.TWO.VDimension') {
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skobj = new TCAD.TWO.VDimension(obj.a, obj.b);
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skobj.flip = obj.flip;
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} else if (obj._class === 'TCAD.TWO.Dimension') {
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skobj = new TCAD.TWO.Dimension(obj.a, obj.b);
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skobj.flip = obj.flip;
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}
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if (skobj != null) {
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if (!!obj.aux) skobj.accept(function(o){o.aux = true; return true;});
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if (obj.edge !== undefined) {
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skobj.edge = obj.edge;
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}
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layer.objects.push(skobj);
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skobj.layer = layer;
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index[obj.id] = skobj;
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}
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}
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}
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}
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for (i = 0; i < this.viewer.dimLayer.objects.length; ++i) {
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obj = this.viewer.dimLayer.objects[i];
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//if (obj._class === 'TCAD.TWO.Dimension' || obj._class === 'TCAD.TWO.HDimension' || obj._class === 'TCAD.TWO.VDimension') {
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obj.a = index[obj.a];
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obj.b = index[obj.b];
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//}
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}
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if (sketch.boundary !== undefined && sketch.boundary != null) {
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this.updateBoundary(sketch.boundary);
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}
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if (sketch.constraints !== undefined) {
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for (var i = 0; i < sketch.constraints.length; ++i) {
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try {
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var c = this.parseConstr(sketch.constraints[i], index);
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this.viewer.parametricManager._add(c);
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} catch (err) {
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console.error(err);
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}
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}
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this.viewer.parametricManager.notify();
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}
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};
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TCAD.IO.prototype.cleanUpData = function() {
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for (var l = 0; l < this.viewer.layers.length; ++l) {
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var layer = this.viewer.layers[l];
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if (layer.objects.length != 0) {
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layer.objects = [];
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}
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}
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this.viewer.deselectAll();
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TCAD.TWO.utils.ID_COUNTER = 0;
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if (this.viewer.parametricManager.subSystems.length != 0) {
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this.viewer.parametricManager.subSystems = [];
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this.viewer.parametricManager.notify();
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}
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};
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TCAD.IO.prototype._serializeSketch = function() {
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var sketch = {};
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//sketch.boundary = boundary;
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sketch.layers = [];
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function point(p) {
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return [ p.id, [p._x.id, p.x], [p._y.id, p.y] ];
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}
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var toSave = [this.viewer.dimLayers, this.viewer.layers];
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for (var t = 0; t < toSave.length; ++t) {
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var layers = toSave[t];
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for (var l = 0; l < layers.length; ++l) {
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var layer = layers[l];
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if (layer.readOnly) continue;
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var toLayer = {name : layer.name, data : []};
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sketch.layers.push(toLayer);
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for (var i = 0; i < layer.objects.length; ++i) {
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var obj = layer.objects[i];
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var to = {id: obj.id, _class: obj._class};
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if (obj.aux) to.aux = obj.aux;
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if (obj.edge !== undefined) to.edge = obj.edge;
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toLayer.data.push(to);
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if (obj._class === 'TCAD.TWO.Segment') {
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to.points = [point(obj.a), point(obj.b)];
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} else if (obj._class === 'TCAD.TWO.EndPoint') {
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to.location = point(obj);
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} else if (obj._class === 'TCAD.TWO.Arc') {
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to.points = [point(obj.a), point(obj.b), point(obj.c)];
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} else if (obj._class === 'TCAD.TWO.Circle') {
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to.c = point(obj.c);
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to.r = obj.r.get();
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} else if (obj._class === 'TCAD.TWO.Dimension' || obj._class === 'TCAD.TWO.HDimension' || obj._class === 'TCAD.TWO.VDimension') {
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to.a = obj.a.id;
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to.b = obj.b.id;
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to.flip = obj.flip;
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}
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}
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}
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}
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var constrs = sketch.constraints = [];
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var subSystems = this.viewer.parametricManager.subSystems;
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for (var j = 0; j < subSystems.length; j++) {
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var sub = subSystems[j];
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for (var i = 0; i < sub.constraints.length; ++i) {
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if (!sub.constraints[i].aux) {
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constrs.push(this.serializeConstr(sub.constraints[i]));
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}
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}
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}
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return sketch;
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};
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TCAD.IO.prototype.updateBoundary = function (boundary) {
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if (this.boundaryLayer === undefined) {
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this.boundaryLayer = new TCAD.TWO.Layer("bounds", TCAD.TWO.Styles.BOUNDS);
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this.boundaryLayer.readOnly = true;
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this.viewer.layers.splice(0, 0, this.boundaryLayer);
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}
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var edges = [];
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var bbox = [Number.MAX_VALUE, Number.MAX_VALUE, - Number.MAX_VALUE, - Number.MAX_VALUE];
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var flattenPolygon = function(points) {
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var n = points.length;
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for ( var p = n - 1, q = 0; q < n; p = q ++ ) {
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edges.push([points[p].x, points[p].y, points[q].x, points[q].y]);
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bbox[0] = Math.min(bbox[0], points[p].x);
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bbox[1] = Math.min(bbox[1], points[p].y);
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bbox[2] = Math.max(bbox[2], points[q].x);
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bbox[3] = Math.max(bbox[3], points[q].y);
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}
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};
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flattenPolygon(boundary.shell);
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for (var i = 0; i < boundary.holes.length; ++i ) {
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flattenPolygon(boundary.holes[i]);
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}
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// if (bbox[0] < Number.MAX_VALUE && bbox[1] < Number.MAX_VALUE && -bbox[2] < Number.MAX_VALUE && -bbox[3] < Number.MAX_VALUE) {
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// this.viewer.showBounds(bbox[0], bbox[1], bbox[2], bbox[3])
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// }
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for (var l = 0; l < this.viewer.layers.length; ++l) {
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var layer = this.viewer.layers[l];
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for (var i = 0; i < layer.objects.length; ++i) {
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var obj = layer.objects[i];
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if (obj.edge !== undefined) {
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var edge = edges[obj.edge];
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if (edge !== undefined && edge != null) {
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obj.a.x = edge[0];
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obj.a.y = edge[1];
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obj.b.x = edge[2];
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obj.b.y = edge[3];
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edges[obj.edge] = null;
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}
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}
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}
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}
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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 != null) {
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var seg = this.viewer.addSegment(edge[0], edge[1], edge[2], edge[3], this.boundaryLayer);
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seg.accept(function(o){o.aux = true; return true;});
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seg.edge = i;
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}
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}
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};
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TCAD.IO.prototype.parseConstr = function (c, index) {
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function find(id) {
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var p = index[id];
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if (!p) {
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throw "CAN'T READ SKETCH. Object ref is not found.";
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}
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return p;
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}
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var name = c[0];
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var ps = c[1];
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var constrCreate = TCAD.TWO.Constraints.Factory[name];
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if (constrCreate === undefined) {
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throw "CAN'T READ SKETCH. Constraint " + name + " hasn't been registered.";
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}
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return constrCreate(find, ps);
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};
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TCAD.IO.prototype.serializeConstr = function (c) {
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return c.serialize();
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};
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TCAD.IO.prototype.svgExport = function () {
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var format = function(str, args) {
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return str.replace(/{(\d+)}/g, function(match, number) {
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var val = args[number] !== undefined ? args[number] : match;
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if (typeof val === 'number') val = val.toPrecision();
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return val;
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});
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};
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var colors = ["#000000", "#00008B", "#006400", "#8B0000", "#FF8C00", "#E9967A"];
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var svg = "";
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function append(chunk) {
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var args = Array.prototype.slice.call(arguments, 1);
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svg += format(chunk, args) + "\n"
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}
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var a = new TCAD.Vector();
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var b = new TCAD.Vector();
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var colIdx = 0;
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var toExport = [this.viewer.layers];
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for (var t = 0; t < toExport.length; ++t) {
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var layers = toExport[t];
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for (var l = 0; l < layers.length; ++l) {
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var layer = layers[l];
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if (layer.readOnly) continue;
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var color = colors[colIdx++ % colors.length];
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append('<g id="{0}" fill="{1}" stroke="{2}" stroke-width="{3}">', layer.name, "none", color, '2');
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for (var i = 0; i < layer.objects.length; ++i) {
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var obj = layer.objects[i];
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if (obj._class === 'TCAD.TWO.Segment') {
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append('<line x1="{0}" y1="{1}" x2="{2}" y2="{3}" fill="none"/>', obj.a.x, obj.a.y, obj.b.x, obj.b.y);
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} else if (obj._class === 'TCAD.TWO.EndPoint') {
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} else if (obj._class === 'TCAD.TWO.Arc') {
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a.set(obj.a.x - obj.c.x, obj.a.y - obj.c.y, 0);
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b.set(obj.b.x - obj.c.x, obj.b.y - obj.c.y, 0);
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var dir = a.cross(b).z > 0 ? 0 : 1;
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var r = obj.r.get();
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append('<path d="M {0} {1} A {2} {3} 0 {4} {5} {6} {7}" fill="none"/>', obj.a.x, obj.a.y, r, r, dir, 1, obj.b.x, obj.b.y);
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} else if (obj._class === 'TCAD.TWO.Circle') {
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append('<circle cx="{0}" cy="{1}" r="{2}" fill="none"/>', obj.c.x, obj.c.y, obj.r.get());
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} else if (obj._class === 'TCAD.TWO.Dimension' || obj._class === 'TCAD.TWO.HDimension' || obj._class === 'TCAD.TWO.VDimension') {
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}
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}
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append('</g>');
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}
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}
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return "<svg>\n" + svg + "</svg>"
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};
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