109 lines
2.8 KiB
JavaScript
109 lines
2.8 KiB
JavaScript
var Doodle2gcode = function() {
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var className = "Doodle2gcode";
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var speed = 50;
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var layerHeight = .2;
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var filamentDiameter = 2.89;
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var nozzleDiameter = .4;
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var dimensions = {x:200,y:200,z:200};
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var px2mm = .3;
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var nozzleFilamentRatio = nozzleDiameter / filamentDiameter;
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var layerNozzleRatio = layerHeight / nozzleDiameter;
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var extrudeFactor = nozzleFilamentRatio * layerNozzleRatio;
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var flowRatio = 1;
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var extruder = 0;
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function generate(doodles) {
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var gcode = "";
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extruder = 0;
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for (var z=0,layer=0; z<dimensions.z; z+=layerHeight,layer++) {
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for (var i=0; i<doodles.length; i++) {
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var path = getDoodlePathAtHeight(doodles[i],z);
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// var path = new Path();
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// path.moveTo(0,0);
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// path.lineTo(100,0);
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// path.lineTo(100,100);
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// path.lineTo(0,100);
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// path.lineTo(0,0);
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gcode += path2gcode(path,z);
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}
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}
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return gcode;
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}
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function getDoodlePathAtHeight(doodle,z) {
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if (z>doodle.getHeight()) return new Path(); //return empty path, doodle not visible in this slice
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var zz = z/doodle.getHeight(); //0..1
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var rotation = doodle.getRotation();
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var twist = zz * doodle.getTwist();
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var offset = doodle.getOffset();
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var scale = doodle.getScale();
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var scaler = doodle.getScaleFunction(zz);
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var path = doodle.getPath().clone();
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// var org = path.getOffset();
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var box = path.getBoundingBox();
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// console.log(box.toString());
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path.translate(-box.getX(),-box.getY());
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path.translate(-box.getWidth()/2,-box.getHeight()/2);
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// path.alignCenter();
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path.scale(scale);
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path.scale(scaler);
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path.translate(box.getX(),box.getY());
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path.translate(box.getWidth()/2,box.getHeight()/2);
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// path.rotate(rotation);
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path.rotate(twist,box.getCenter());
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// path.alignCorner();
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path.translate(offset.x,offset.y);
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return path;
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}
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function path2gcode(path,z) {
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var gcode = '';
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var polylines = path.getPolylines();
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path.scale(px2mm);
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path.translate(0,-dimensions.y);
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for (var i=0; i<polylines.length; i++) {
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var points = polylines[i].getPoints();
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for (var j=0; j<points.length; j++) {
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var x = points[j].x;
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var y = -points[j].y;
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gcode += (j==0 ? 'G0' : 'G1');
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gcode += ' ';
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gcode += 'X' + x.toFixed(2);
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gcode += ' ';
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gcode += 'Y' + y.toFixed(2);
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gcode += ' ';
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gcode += 'Z' + z.toFixed(2);
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gcode += ' ';
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if (j>0) {
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var dist = points[j-1].distance(points[j]) * px2mm;
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extruder += dist * extrudeFactor * flowRatio;
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gcode += 'E' + extruder.toFixed(4);
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}
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gcode += '\n';
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}
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}
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return gcode;
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}
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return {
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generate: generate,
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}
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} |