030ffe6dce
Should enable people to set their axes origin so that the viewer matches what they see on their printer. Should close #431
636 lines
23 KiB
JavaScript
636 lines
23 KiB
JavaScript
/**
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* User: hudbrog (hudbrog@gmail.com)
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* Date: 10/20/12
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* Time: 1:36 PM
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* To change this template use File | Settings | File Templates.
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*/
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GCODE.renderer = (function(){
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// ***** PRIVATE ******
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var canvas;
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var ctx;
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var zoomFactor= 2.8, zoomFactorDelta = 0.4;
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var gridStep=10;
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var ctxHeight, ctxWidth;
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var prevX=0, prevY=0;
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var layerNumStore, progressStore={from: 0, to: -1};
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var lastX, lastY;
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var dragStart, dragged;
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var scaleFactor = 1.1;
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var model;
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var initialized = false;
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var renderOptions = {
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colorGrid: "#bbbbbb",
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bgColorGrid: "#ffffff",
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bgColorOffGrid: "#eeeeee",
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colorLine: ["#000000", "#3333cc", "#cc3333", "#33cc33", "#cc33cc"],
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colorMove: "#00ff00",
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colorRetract: "#ff0000",
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colorRestart: "#0000ff",
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showMoves: true,
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showRetracts: true,
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extrusionWidth: 1,
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// #000000", "#45c7ba", "#a9533a", "#ff44cc", "#dd1177", "#eeee22", "#ffbb55", "#ff5511", "#777788"
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sizeRetractSpot: 2,
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modelCenter: {x: 0, y: 0},
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differentiateColors: true,
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showNextLayer: false,
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showPreviousLayer: false,
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moveModel: true,
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zoomInOnModel: false,
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zoomInOnBed: false,
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centerViewport: false,
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invertAxes: {x: false, y: false},
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bed: {x: 200, y: 200},
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container: undefined
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};
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var offsetModelX = 0, offsetModelY = 0;
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var offsetBedX = 0, offsetBedY = 0;
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var scaleX = 1, scaleY = 1;
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var speeds = [];
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var speedsByLayer = {};
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var currentInvertX = false, currentInvertY = false;
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var reRender = function(){
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var p1 = ctx.transformedPoint(0,0);
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var p2 = ctx.transformedPoint(canvas.width,canvas.height);
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ctx.clearRect(p1.x,p1.y,p2.x-p1.x,p2.y-p1.y);
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drawGrid();
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if(renderOptions['showNextLayer'] && layerNumStore < model.length - 1) {
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drawLayer(layerNumStore + 1, 0, GCODE.renderer.getLayerNumSegments(layerNumStore + 1), true);
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}
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if (renderOptions['showPreviousLayer'] && layerNumStore > 0) {
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drawLayer(layerNumStore - 1, 0, GCODE.renderer.getLayerNumSegments(layerNumStore - 1), true);
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}
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drawLayer(layerNumStore, progressStore.from, progressStore.to);
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};
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function trackTransforms(ctx){
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var svg = document.createElementNS("http://www.w3.org/2000/svg",'svg');
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var xform = svg.createSVGMatrix();
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ctx.getTransform = function(){ return xform; };
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var savedTransforms = [];
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var save = ctx.save;
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ctx.save = function(){
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savedTransforms.push(xform.translate(0,0));
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return save.call(ctx);
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};
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var restore = ctx.restore;
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ctx.restore = function(){
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xform = savedTransforms.pop();
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return restore.call(ctx);
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};
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var scale = ctx.scale;
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ctx.scale = function(sx,sy){
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xform = xform.scaleNonUniform(sx,sy);
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return scale.call(ctx,sx,sy);
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};
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var rotate = ctx.rotate;
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ctx.rotate = function(radians){
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xform = xform.rotate(radians*180/Math.PI);
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return rotate.call(ctx,radians);
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};
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var translate = ctx.translate;
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ctx.translate = function(dx,dy){
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xform = xform.translate(dx,dy);
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return translate.call(ctx,dx,dy);
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};
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var transform = ctx.transform;
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ctx.transform = function(a,b,c,d,e,f){
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var m2 = svg.createSVGMatrix();
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m2.a=a; m2.b=b; m2.c=c; m2.d=d; m2.e=e; m2.f=f;
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xform = xform.multiply(m2);
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return transform.call(ctx,a,b,c,d,e,f);
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};
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var setTransform = ctx.setTransform;
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ctx.setTransform = function(a,b,c,d,e,f){
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xform.a = a;
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xform.b = b;
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xform.c = c;
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xform.d = d;
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xform.e = e;
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xform.f = f;
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return setTransform.call(ctx,a,b,c,d,e,f);
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};
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var pt = svg.createSVGPoint();
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ctx.transformedPoint = function(x,y){
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pt.x=x; pt.y=y;
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return pt.matrixTransform(xform.inverse());
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}
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}
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var startCanvas = function() {
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var jqueryCanvas = $(renderOptions["container"]);
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//jqueryCanvas.css("background-color", renderOptions["bgColorOffGrid"]);
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canvas = jqueryCanvas[0];
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ctx = canvas.getContext('2d');
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ctxHeight = canvas.height;
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ctxWidth = canvas.width;
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lastX = ctxWidth/2;
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lastY = ctxHeight/2;
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ctx.lineWidth = 2;
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ctx.lineCap = 'round';
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trackTransforms(ctx);
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canvas.addEventListener('mousedown',function(evt){
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document.body.style.mozUserSelect = document.body.style.webkitUserSelect = document.body.style.userSelect = 'none';
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lastX = evt.offsetX || (evt.pageX - canvas.offsetLeft);
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lastY = evt.offsetY || (evt.pageY - canvas.offsetTop);
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dragStart = ctx.transformedPoint(lastX,lastY);
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dragged = false;
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},false);
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canvas.addEventListener('mousemove',function(evt){
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lastX = evt.offsetX || (evt.pageX - canvas.offsetLeft);
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lastY = evt.offsetY || (evt.pageY - canvas.offsetTop);
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dragged = true;
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if (dragStart){
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var pt = ctx.transformedPoint(lastX,lastY);
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ctx.translate(pt.x-dragStart.x,pt.y-dragStart.y);
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reRender();
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}
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},false);
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canvas.addEventListener('mouseup',function(evt){
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dragStart = null;
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if (!dragged) zoom(evt.shiftKey ? -1 : 1 );
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},false);
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var zoom = function(clicks){
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var pt = ctx.transformedPoint(lastX,lastY);
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ctx.translate(pt.x,pt.y);
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var factor = Math.pow(scaleFactor,clicks);
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ctx.scale(factor,factor);
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ctx.translate(-pt.x,-pt.y);
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reRender();
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};
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var handleScroll = function(evt){
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var delta;
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if(evt.detail<0 || evt.wheelDelta>0)delta=zoomFactorDelta;
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else delta=-1*zoomFactorDelta;
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if (delta) zoom(delta);
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return evt.preventDefault() && false;
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};
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canvas.addEventListener('DOMMouseScroll',handleScroll,false);
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canvas.addEventListener('mousewheel',handleScroll,false);
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};
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var drawGrid = function() {
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ctx.translate(offsetBedX, offsetBedY);
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if(renderOptions["bed"]["circular"]) {
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drawCircularGrid();
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} else {
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drawRectangularGrid();
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}
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ctx.translate(-offsetBedX, -offsetBedY);
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};
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var drawRectangularGrid = function() {
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var i;
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var width = renderOptions["bed"]["x"] * zoomFactor;
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var height = renderOptions["bed"]["y"] * zoomFactor;
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var origin = {
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x: 0,
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y: -1 * renderOptions["bed"]["y"] * zoomFactor
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};
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ctx.beginPath();
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ctx.strokeStyle = renderOptions["colorGrid"];
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ctx.fillStyle = "#ffffff";
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ctx.lineWidth = 2;
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ctx.rect(origin.x, origin.y, width, height);
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ctx.fill();
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ctx.stroke();
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ctx.strokeStyle = renderOptions["colorGrid"];
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ctx.lineWidth = 1;
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ctx.beginPath();
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for (i = 0; i <= renderOptions["bed"]["x"]; i += gridStep) {
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ctx.moveTo(i * zoomFactor, 0);
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ctx.lineTo(i * zoomFactor, -1 * renderOptions["bed"]["y"] * zoomFactor);
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}
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ctx.stroke();
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ctx.beginPath();
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for (i = 0; i <= renderOptions["bed"]["y"]; i += gridStep) {
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ctx.moveTo(0, -1 * i * zoomFactor);
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ctx.lineTo(renderOptions["bed"]["x"] * zoomFactor, -1 * i * zoomFactor);
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}
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ctx.stroke();
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};
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var drawCircularGrid = function() {
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var i;
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ctx.strokeStyle = renderOptions["colorGrid"];
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ctx.fillStyle = "#ffffff";
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ctx.lineWidth = 2;
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//~~ bed outline & origin
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ctx.beginPath();
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// outline
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ctx.arc(0, 0, renderOptions["bed"]["r"] * zoomFactor, 0, Math.PI * 2, true);
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// origin
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ctx.moveTo(-1 * renderOptions["bed"]["r"] * zoomFactor, 0);
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ctx.lineTo(renderOptions["bed"]["r"] * zoomFactor, 0);
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ctx.moveTo(0, -1 * renderOptions["bed"]["r"] * zoomFactor);
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ctx.lineTo(0, renderOptions["bed"]["r"] * zoomFactor);
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// draw
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ctx.fill();
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ctx.stroke();
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ctx.strokeStyle = renderOptions["colorGrid"];
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ctx.lineWidth = 1;
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//~~ grid starting from origin
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ctx.beginPath();
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for (i = 0; i <= renderOptions["bed"]["r"]; i += gridStep) {
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var x = i;
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var y = Math.sqrt(Math.pow(renderOptions["bed"]["r"], 2) - Math.pow(x, 2));
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ctx.moveTo(x * zoomFactor, y * zoomFactor);
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ctx.lineTo(x * zoomFactor, -1 * y * zoomFactor);
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ctx.moveTo(y * zoomFactor, x * zoomFactor);
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ctx.lineTo(-1 * y * zoomFactor, x * zoomFactor);
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ctx.moveTo(-1 * x * zoomFactor, y * zoomFactor);
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ctx.lineTo(-1 * x * zoomFactor, -1 * y * zoomFactor);
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ctx.moveTo(y * zoomFactor, -1 * x * zoomFactor);
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ctx.lineTo(-1 * y * zoomFactor, -1 * x * zoomFactor);
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}
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ctx.stroke();
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};
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var drawLayer = function(layerNum, fromProgress, toProgress, isNotCurrentLayer){
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console.log("Drawing layer " + layerNum + " from " + fromProgress + " to " + toProgress + " (current: " + !isNotCurrentLayer + ")");
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var i;
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//~~ store current layer values
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isNotCurrentLayer = isNotCurrentLayer !== undefined ? isNotCurrentLayer : false;
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if (!isNotCurrentLayer) {
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// not not current layer == current layer => store layer number and from/to progress
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layerNumStore = layerNum;
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progressStore = {from: fromProgress, to: toProgress};
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}
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if (!model || !model[layerNum]) return;
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var cmds = model[layerNum];
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var x, y;
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//~~ find our initial prevX/prevY tuple
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if (cmds[0].prevX !== undefined && cmds[0].prevY !== undefined) {
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// command contains prevX/prevY values, use those
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prevX = cmds[0].prevX * zoomFactor;
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prevY = -1 * cmds[0].prevY * zoomFactor;
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} else if (fromProgress > 0) {
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// previous command in same layer exists, use x/y as prevX/prevY
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prevX = cmds[fromProgress - 1].x * zoomFactor;
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prevY = -cmds[fromProgress - 1].y * zoomFactor;
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} else if (model[layerNum - 1]) {
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// previous layer exists, use last x/y as prevX/prevY
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prevX = undefined;
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prevY = undefined;
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for (i = model[layerNum-1].length-1; i >= 0; i--) {
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if (prevX === undefined && model[layerNum - 1][i].x !== undefined) prevX = model[layerNum - 1][i].x * zoomFactor;
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if (prevY === undefined && model[layerNum - 1][i].y !== undefined) prevY =- model[layerNum - 1][i].y * zoomFactor;
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}
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}
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// if we did not find prevX or prevY, set it to 0 (might be that we are on the first command of the first layer,
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// or it's just a very weird model...)
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if (prevX === undefined) prevX = 0;
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if (prevY === undefined) prevY = 0;
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//~~ render this layer's commands
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for (i = fromProgress; i <= toProgress; i++) {
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ctx.lineWidth = 1;
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if (typeof(cmds[i]) === 'undefined') continue;
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if (typeof(cmds[i].prevX) !== 'undefined' && typeof(cmds[i].prevY) !== 'undefined') {
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// override new (prevX, prevY)
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prevX = cmds[i].prevX * zoomFactor;
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prevY = -1 * cmds[i].prevY * zoomFactor;
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}
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// new x
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if (typeof(cmds[i].x) === 'undefined' || isNaN(cmds[i].x)) {
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x = prevX / zoomFactor;
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} else {
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x = cmds[i].x;
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}
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// new y
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if (typeof(cmds[i].y) === 'undefined' || isNaN(cmds[i].y)) {
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y = prevY / zoomFactor;
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} else {
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y = -cmds[i].y;
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}
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// current tool
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var tool = cmds[i].tool;
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if (tool === undefined) tool = 0;
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// line color based on tool
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var lineColor = renderOptions["colorLine"][tool];
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if (lineColor === undefined) lineColor = renderOptions["colorLine"][0];
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// alpha value (100% if current layer is being rendered, 30% otherwise)
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var alpha = (renderOptions['showNextLayer'] || renderOptions['showPreviousLayer']) && isNotCurrentLayer ? 0.3 : 1.0;
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var shade = tool * 0.15;
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if (!cmds[i].extrude && !cmds[i].noMove) {
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// neither extrusion nor move
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if (cmds[i].retract == -1) {
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// retract => draw dot if configured to do so
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if (renderOptions["showRetracts"]) {
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ctx.strokeStyle = pusher.color(renderOptions["colorRetract"]).shade(shade).alpha(alpha).html();
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ctx.fillStyle = pusher.color(renderOptions["colorRetract"]).shade(shade).alpha(alpha).html();
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ctx.beginPath();
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ctx.arc(prevX, prevY, renderOptions["sizeRetractSpot"], 0, Math.PI*2, true);
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ctx.stroke();
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ctx.fill();
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}
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}
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if(renderOptions["showMoves"]){
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// move => draw line from (prevX, prevY) to (x, y) in move color
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ctx.strokeStyle = pusher.color(renderOptions["colorMove"]).shade(shade).alpha(alpha).html();
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ctx.beginPath();
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ctx.moveTo(prevX, prevY);
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ctx.lineTo(x*zoomFactor,y*zoomFactor);
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ctx.stroke();
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}
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} else if(cmds[i].extrude) {
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if (cmds[i].retract == 0) {
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// no retraction => real extrusion move, use tool color to draw line
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ctx.strokeStyle = pusher.color(renderOptions["colorLine"][tool]).shade(shade).alpha(alpha).html();
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ctx.lineWidth = renderOptions['extrusionWidth'];
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ctx.beginPath();
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ctx.moveTo(prevX, prevY);
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ctx.lineTo(x*zoomFactor,y*zoomFactor);
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ctx.stroke();
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} else {
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// we were previously retracting, now we are restarting => draw dot if configured to do so
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if (renderOptions["showRetracts"]) {
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ctx.strokeStyle = pusher.color(renderOptions["colorRestart"]).shade(shade).alpha(alpha).html();
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ctx.fillStyle = pusher.color(renderOptions["colorRestart"]).shade(shade).alpha(alpha).html();
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ctx.beginPath();
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ctx.arc(prevX, prevY, renderOptions["sizeRetractSpot"], 0, Math.PI*2, true);
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ctx.stroke();
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ctx.fill();
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}
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}
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}
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// set new (prevX, prevY)
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prevX = x * zoomFactor;
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prevY = y * zoomFactor;
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}
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ctx.stroke();
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};
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var applyOffsets = function(mdlInfo) {
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var canvasCenter;
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// determine bed and model offsets
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if (ctx) ctx.translate(-offsetModelX, -offsetModelY);
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if (renderOptions["centerViewport"] || renderOptions["zoomInOnModel"]) {
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canvasCenter = ctx.transformedPoint(canvas.width / 2, canvas.height / 2);
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if (mdlInfo) {
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offsetModelX = canvasCenter.x - (mdlInfo.min.x + mdlInfo.modelSize.x / 2) * zoomFactor;
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offsetModelY = canvasCenter.y + (mdlInfo.min.y + mdlInfo.modelSize.y / 2) * zoomFactor;
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} else {
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offsetModelX = 0;
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offsetModelY = 0;
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}
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offsetBedX = 0;
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offsetBedY = 0;
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} else if (mdlInfo && renderOptions["moveModel"]) {
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offsetModelX = (renderOptions["bed"]["x"] / 2 - (mdlInfo.min.x + mdlInfo.modelSize.x / 2)) * zoomFactor;
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offsetModelY = -1 * (renderOptions["bed"]["y"] / 2 - (mdlInfo.min.y + mdlInfo.modelSize.y / 2)) * zoomFactor;
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offsetBedX = -1 * (renderOptions["bed"]["x"] / 2 - (mdlInfo.min.x + mdlInfo.modelSize.x / 2)) * zoomFactor;
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offsetBedY = (renderOptions["bed"]["y"] / 2 - (mdlInfo.min.y + mdlInfo.modelSize.y / 2)) * zoomFactor;
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} else if (renderOptions["bed"]["circular"]) {
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canvasCenter = ctx.transformedPoint(canvas.width / 2, canvas.height / 2);
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offsetModelX = canvasCenter.x;
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offsetModelY = canvasCenter.y;
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offsetBedX = 0;
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offsetBedY = 0;
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} else {
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offsetModelX = 0;
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offsetModelY = 0;
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offsetBedX = 0;
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offsetBedY = 0;
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}
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if (ctx) ctx.translate(offsetModelX, offsetModelY);
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};
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var applyZoom = function(mdlInfo) {
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var pt = ctx.transformedPoint(canvas.width/2,canvas.height/2);
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var transform = ctx.getTransform();
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if (scaleX && scaleY && transform.a && transform.d) {
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ctx.translate(pt.x, pt.y);
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ctx.scale(1 / scaleX, 1 / scaleY);
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ctx.translate(-pt.x, -pt.y);
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transform = ctx.getTransform();
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}
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if (mdlInfo && renderOptions["zoomInOnModel"]) {
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var scaleF = mdlInfo.modelSize.x > mdlInfo.modelSize.y ? (canvas.width - 10) / mdlInfo.modelSize.x : (canvas.height - 10) / mdlInfo.modelSize.y;
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scaleF /= zoomFactor;
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if (transform.a && transform.d) {
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scaleX = scaleF / transform.a * (renderOptions["invertAxes"]["x"] ? -1 : 1);
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scaleY = scaleF / transform.d * (renderOptions["invertAxes"]["y"] ? -1 : 1);
|
|
ctx.translate(pt.x,pt.y);
|
|
ctx.scale(scaleX, scaleY);
|
|
ctx.translate(-pt.x, -pt.y);
|
|
}
|
|
} else {
|
|
scaleX = 1;
|
|
scaleY = 1;
|
|
}
|
|
};
|
|
|
|
var applyInversion = function() {
|
|
var width = canvas.width - 10;
|
|
var height = canvas.height - 10;
|
|
|
|
if (currentInvertX || currentInvertY) {
|
|
ctx.scale(currentInvertX ? -1 : 1, currentInvertY ? -1 : 1);
|
|
ctx.translate(currentInvertX ? -width : 0, currentInvertY ? height : 0);
|
|
}
|
|
|
|
var invertX = renderOptions["invertAxes"]["x"];
|
|
var invertY = renderOptions["invertAxes"]["y"];
|
|
if (invertX || invertY) {
|
|
ctx.translate(invertX ? width : 0, invertY ? -height : 0);
|
|
ctx.scale(invertX ? -1 : 1, invertY ? -1 : 1);
|
|
}
|
|
|
|
currentInvertX = invertX;
|
|
currentInvertY = invertY;
|
|
};
|
|
|
|
// ***** PUBLIC *******
|
|
return {
|
|
init: function(){
|
|
startCanvas();
|
|
initialized = true;
|
|
var bedWidth = renderOptions["bed"]["x"];
|
|
var bedHeight = renderOptions["bed"]["y"];
|
|
if(renderOptions["bed"]["circular"]) {
|
|
bedWidth = bedHeight = renderOptions["bed"]["r"] * 2;
|
|
}
|
|
zoomFactor = Math.min((canvas.width - 10) / bedWidth, (canvas.height - 10) / bedHeight);
|
|
|
|
var translationX, translationY;
|
|
if (renderOptions["bed"]["circular"]) {
|
|
translationX = canvas.width / 2;
|
|
translationY = canvas.height / 2;
|
|
} else {
|
|
translationX = (canvas.width - bedWidth * zoomFactor) / 2;
|
|
translationY = bedHeight * zoomFactor + (canvas.height - bedHeight * zoomFactor) / 2;
|
|
}
|
|
ctx.translate(translationX, translationY);
|
|
|
|
offsetModelX = 0;
|
|
offsetModelY = 0;
|
|
offsetBedX = 0;
|
|
offsetBedY = 0;
|
|
},
|
|
setOption: function(options){
|
|
var mustRefresh = false;
|
|
var dirty = false;
|
|
for (var opt in options) {
|
|
if (!renderOptions.hasOwnProperty(opt) || !options.hasOwnProperty(opt)) continue;
|
|
if (options[opt] === undefined) continue;
|
|
if (renderOptions[opt] == options[opt]) continue;
|
|
|
|
dirty = true;
|
|
renderOptions[opt] = options[opt];
|
|
if ($.inArray(opt, ["moveModel", "centerViewport", "zoomInOnModel", "bed", "invertAxes"])) {
|
|
mustRefresh = true;
|
|
}
|
|
}
|
|
|
|
if (!dirty) return;
|
|
if(initialized) {
|
|
if (mustRefresh) {
|
|
this.refresh();
|
|
} else {
|
|
reRender();
|
|
}
|
|
}
|
|
},
|
|
getOptions: function(){
|
|
return renderOptions;
|
|
},
|
|
debugGetModel: function(){
|
|
return model;
|
|
},
|
|
render: function(layerNum, fromProgress, toProgress){
|
|
if (!initialized) this.init();
|
|
|
|
var p1 = ctx.transformedPoint(0, 0);
|
|
var p2 = ctx.transformedPoint(canvas.width, canvas.height);
|
|
ctx.clearRect(p1.x, p1.y, p2.x - p1.x, p2.y - p1.y);
|
|
drawGrid();
|
|
if (model && model.length) {
|
|
if (layerNum < model.length) {
|
|
if (renderOptions['showNextLayer'] && layerNum < model.length - 1) {
|
|
drawLayer(layerNum + 1, 0, this.getLayerNumSegments(layerNum + 1), true);
|
|
}
|
|
if (renderOptions['showPreviousLayer'] && layerNum > 0) {
|
|
drawLayer(layerNum - 1, 0, this.getLayerNumSegments(layerNum - 1), true);
|
|
}
|
|
drawLayer(layerNum, fromProgress, toProgress);
|
|
} else {
|
|
console.log("Got request to render non-existent layer");
|
|
}
|
|
}
|
|
},
|
|
getModelNumLayers: function(){
|
|
return model ? model.length : 1;
|
|
},
|
|
getLayerNumSegments: function(layer){
|
|
if(model){
|
|
return model[layer]?model[layer].length:1;
|
|
}else{
|
|
return 1;
|
|
}
|
|
},
|
|
clear: function() {
|
|
offsetModelX = 0;
|
|
offsetModelY = 0;
|
|
offsetBedX = 0;
|
|
offsetBedY = 0;
|
|
scaleX = 1;
|
|
scaleY = 1;
|
|
speeds = [];
|
|
speedsByLayer = {};
|
|
|
|
this.doRender([], 0);
|
|
},
|
|
doRender: function(mdl, layerNum){
|
|
model = mdl;
|
|
|
|
var mdlInfo = undefined;
|
|
prevX = 0;
|
|
prevY = 0;
|
|
if (!initialized) this.init();
|
|
|
|
var toProgress = 1;
|
|
if (model) {
|
|
mdlInfo = GCODE.gCodeReader.getModelInfo();
|
|
speeds = mdlInfo.speeds;
|
|
speedsByLayer = mdlInfo.speedsByLayer;
|
|
if (model[layerNum]) {
|
|
toProgress = model[layerNum].length;
|
|
}
|
|
}
|
|
|
|
applyInversion();
|
|
applyOffsets(mdlInfo);
|
|
applyZoom(mdlInfo);
|
|
|
|
this.render(layerNum, 0, toProgress);
|
|
},
|
|
refresh: function(layerNum) {
|
|
if (!layerNum) layerNum = layerNumStore;
|
|
this.doRender(model, layerNum);
|
|
},
|
|
getZ: function(layerNum){
|
|
if(!model || !model[layerNum]){
|
|
return '-1';
|
|
}
|
|
var cmds = model[layerNum];
|
|
for(var i = 0; i < cmds.length; i++){
|
|
if(cmds[i].prevZ !== undefined) return cmds[i].prevZ;
|
|
}
|
|
return '-1';
|
|
}
|
|
|
|
}
|
|
}());
|