mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-06-01 21:44:31 +02:00
577 lines
15 KiB
JavaScript
577 lines
15 KiB
JavaScript
/******************************************************
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*
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* Slicer
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*
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******************************************************/
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D3D.Slicer = function () {
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"use strict";
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this.progress = {
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totalFaces: 0,
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currentFace: 0,
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totalLayers: 0,
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sliceLayer: 0,
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dataLayer: 0,
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gcodeLayer: 0
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};
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};
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D3D.Slicer.prototype.setMesh = function (geometry, matrix) {
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"use strict";
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//convert buffergeometry to geometry;
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if (geometry instanceof THREE.BufferGeometry) {
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geometry = new THREE.Geometry().fromBufferGeometry(geometry);
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}
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else {
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geometry = geometry.clone();
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}
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//apply mesh matrix on geometry;
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geometry.applyMatrix(matrix);
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geometry.computeBoundingBox();
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geometry.computeFaceNormals();
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geometry.mergeVertices();
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this.geometry = geometry;
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//get unique lines from geometry;
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this.createLines();
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return this;
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};
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D3D.Slicer.prototype.updateProgress = function () {
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'use strict';
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var faces = this.progress.currentFace / (this.progress.totalFaces - 1);
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var slice = this.progress.sliceLayer / (this.progress.totalLayers - 1);
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var data = this.progress.dataLayer / (this.progress.totalLayers - 2);
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var gcode = this.progress.gcodeLayer / (this.progress.totalLayers - 2);
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this.progress.procent = (faces + slice + data + gcode) / 4;
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if (this.onProgress !== undefined) {
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this.onProgress(this.progress);
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}
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};
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D3D.Slicer.prototype.createLines = function () {
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"use strict";
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this.progress.totalFaces = this.geometry.faces.length;
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this.lines = [];
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var lineLookup = {};
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var self = this;
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function addLine (a, b) {
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var index = lineLookup[b + "_" + a];
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if (index === undefined) {
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index = self.lines.length;
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lineLookup[a + "_" + b] = index;
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self.lines.push({
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line: new THREE.Line3(self.geometry.vertices[a], self.geometry.vertices[b]),
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connects: [],
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normals: []
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});
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}
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return index;
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}
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for (var i = 0; i < this.geometry.faces.length; i ++) {
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var face = this.geometry.faces[i];
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if (face.normal.y !== 1 && face.normal.y !== -1) {
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var normal = new THREE.Vector2(face.normal.z, face.normal.x).normalize();
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//check for only adding unique lines
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//returns index of said line
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var a = addLine(face.a, face.b);
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var b = addLine(face.b, face.c);
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var c = addLine(face.c, face.a);
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//set connecting lines (based on face)
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this.lines[a].connects.push(b, c);
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this.lines[b].connects.push(c, a);
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this.lines[c].connects.push(a, b);
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this.lines[a].normals.push(normal);
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this.lines[b].normals.push(normal);
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this.lines[c].normals.push(normal);
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}
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this.progress.currentFace = i;
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this.updateProgress();
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}
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};
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D3D.Slicer.prototype.slice = function (layerHeight, height) {
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"use strict";
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var testData = [];
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var numLayers = height / layerHeight;
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var layersIntersections = [];
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for (var layer = 0; layer < numLayers; layer ++) {
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layersIntersections[layer] = [];
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}
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for (var lineIndex = 0; lineIndex < this.lines.length; lineIndex ++) {
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var line = this.lines[lineIndex].line;
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var min = Math.ceil(Math.min(line.start.y, line.end.y) / layerHeight);
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var max = Math.floor(Math.max(line.start.y, line.end.y) / layerHeight);
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for (var layerIndex = min; layerIndex <= max; layerIndex ++) {
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if (layerIndex >= 0 && layerIndex < numLayers) {
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layersIntersections[layerIndex].push(lineIndex);
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}
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}
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}
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var slices = [];
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for (var layer = 1; layer < layersIntersections.length; layer ++) {
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var layerIntersections = layersIntersections[layer];
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var testPoints = [];
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if (layerIntersections.length > 0) {
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var y = layer * layerHeight;
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var intersections = [];
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for (var i = 0; i < layerIntersections.length; i ++) {
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var index = layerIntersections[i];
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var line = this.lines[index].line;
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if (line.start.y === line.end.y) {
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var x = line.start.x;
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var z = line.start.z;
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}
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else {
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var alpha = (y - line.start.y) / (line.end.y - line.start.y);
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var x = line.end.x * alpha + line.start.x * (1 - alpha);
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var z = line.end.z * alpha + line.start.z * (1 - alpha);
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}
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intersections[index] = new THREE.Vector2(z, x);
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testPoints.push({
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x: z,
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y: x,
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connects: this.lines[index].connects,
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index: index,
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normals: this.lines[index].normals
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});
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}
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var done = [];
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var sliceParts = [];
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for (var i = 0; i < layerIntersections.length; i ++) {
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var index = layerIntersections[i];
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if (done.indexOf(index) === -1) {
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var shape = [];
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while (index !== -1) {
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done.push(index);
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var intersection = intersections[index];
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shape.push({X: intersection.x, Y: intersection.y});
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var connects = this.lines[index].connects.clone();
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var faceNormals = this.lines[index].normals.clone();
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for (var j = 0; j < connects.length; j ++) {
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index = connects[j];
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if (intersections[index] !== undefined && done.indexOf(index) === -1) {
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var a = new THREE.Vector2(intersection.x, intersection.y);
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var b = intersections[index];
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var faceNormal = faceNormals[Math.floor(j/2)];
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if (a.distanceTo(b) === 0 || faceNormal.length() === 0) {
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done.push(index);
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connects = connects.concat(this.lines[index].connects);
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faceNormals = faceNormals.concat(this.lines[index].normals);
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index = -1;
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}
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else {
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var normal = a.sub(b).normal().normalize();
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if (normal.dot(faceNormal) > 0) {
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break;
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}
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else {
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index = -1;
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}
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}
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}
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else {
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index = -1;
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}
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}
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}
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var part = new D3D.Paths([shape]).clean(0.01);
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if (part.length > 0) {
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sliceParts.push(part);
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}
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}
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}
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var slice = new D3D.Slice();
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for (var i = 0; i < sliceParts.length; i ++) {
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var slicePart1 = sliceParts[i];
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var merge = false;
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for (var j = 0; j < slice.parts.length; j ++) {
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var slicePart2 = slice.parts[j].intersect;
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if (slicePart2.intersect(slicePart1).length > 0) {
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slicePart2.join(slicePart1);
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merge = true;
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break;
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}
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}
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if (!merge) {
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slice.addIntersect(slicePart1);
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}
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}
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slices.push(slice);
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if (layer === 222) {
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testData.push({
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testPoints: testPoints,
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pathData: slice.parts
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});
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}
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this.progress.sliceLayer = layer;
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this.updateProgress();
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}
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}
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console.log(JSON.stringify(testData));
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return slices;
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};
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D3D.Slicer.prototype.slicesToData = function (slices, printer) {
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"use strict";
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var scale = 100;
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var layerHeight = printer.config["layerHeight"];
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var nozzleDiameter = printer.config["nozzleDiameter"] * scale;
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var shellThickness = printer.config["shellThickness"] * scale;
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var fillGridSize = printer.config["fillGridSize"] * scale;
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var brimOffset = printer.config["brimOffset"] * scale;
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var bottomThickness = printer.config["bottomThickness"];
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var topThickness = printer.config["topThickness"];
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var useSupport = printer.config["supportUse"];
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var supportGridSize = printer.config["supportGridSize"] * scale;
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var supportAcceptanceMargin = printer.config["supportAcceptanceMargin"] * scale;
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var supportMargin = printer.config["supportMargin"] * scale;
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var plateSize = printer.config["supportPlateSize"] * scale;
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var supportDistanceY = printer.config["supportDistanceY"];
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var supportDistanceLayers = Math.ceil(supportDistanceY / layerHeight);
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var bottomSkinCount = Math.ceil(bottomThickness/layerHeight);
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var topSkinCount = Math.ceil(topThickness/layerHeight);
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var nozzleRadius = nozzleDiameter / 2;
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var lowFillTemplate = this.getFillTemplate({
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left: this.geometry.boundingBox.min.z * scale,
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top: this.geometry.boundingBox.min.x * scale,
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right: this.geometry.boundingBox.max.z * scale,
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bottom: this.geometry.boundingBox.max.x * scale
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}, fillGridSize, true, true);
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console.log("generating outer lines and inner lines");
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for (var layer = 0; layer < slices.length; layer ++) {
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var slice = slices[layer];
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for (var i = 0; i < slice.parts.length; i ++) {
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var part = slice.parts[i];
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var outerLine = part.intersect.clone().scaleUp(scale).offset(-nozzleRadius);
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if (outerLine.length > 0) {
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part.outerLine = outerLine;
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for (var offset = nozzleDiameter; offset <= shellThickness; offset += nozzleDiameter) {
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var innerLine = outerLine.offset(-offset);
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if (innerLine.length > 0) {
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part.innerLines.push(innerLine);
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}
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else {
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break;
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}
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}
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}
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}
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}
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console.log("generating infills");
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for (var layer = 0; layer < slices.length; layer ++) {
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var slice = slices[layer];
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if (layer - bottomSkinCount >= 0 && layer + topSkinCount < slices.length) {
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var downSkin = slices[layer - bottomSkinCount].getOutline();
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var upSkin = slices[layer + topSkinCount].getOutline();
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var surroundingLayer = upSkin.intersect(downSkin);
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}
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for (var i = 0; i < slice.parts.length; i ++) {
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var part = slice.parts[i];
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var outerLine = part.outerLine;
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if (outerLine.length > 0) {
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var inset = ((part.innerLines.length > 0) ? part.innerLines[part.innerLines.length - 1] : outerLine);
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var fillArea = inset.offset(-nozzleRadius);
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var highFillArea = (surroundingLayer !== undefined) ? fillArea.difference(surroundingLayer) : fillArea;
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var lowFillArea = fillArea.difference(highFillArea);
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var fill = new D3D.Paths([], false);
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if (lowFillTemplate.length > 0) {
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part.fill.join(lowFillTemplate.intersect(lowFillArea));
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}
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if (highFillArea.length > 0) {
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var bounds = highFillArea.bounds();
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var even = (layer % 2 === 0);
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var highFillTemplate = this.getFillTemplate(bounds, nozzleDiameter, even, !even);
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part.fill.join(highFillTemplate.intersect(highFillArea));
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}
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}
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}
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this.progress.dataLayer = layer;
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this.updateProgress();
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}
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if (useSupport) {
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console.log("generating support");
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var supportAreas = new D3D.Paths([], true);
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for (var layer = slices.length - 1 - supportDistanceLayers; layer >= 0; layer --) {
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if (supportAreas.length > 1) {
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if (layer >= supportDistanceLayers) {
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var sliceSkin = slices[layer - supportDistanceLayers].getOutline();
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sliceSkin = sliceSkin.offset(supportMargin);
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supportAreas = supportAreas.difference(sliceSkin);
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}
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var currentSlice = slices[layer];
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if (layer === 0) {
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supportAreas = supportAreas.offset(plateSize).difference(sliceSkin);
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var template = this.getFillTemplate(supportAreas.bounds(), nozzleDiameter, true, false);
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currentSlice.support = template.intersect(supportAreas);
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}
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else {
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var supportTemplate = this.getFillTemplate(supportAreas.bounds(), supportGridSize, true, true);
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currentSlice.support = supportTemplate.intersect(supportAreas).join(supportAreas.clone());
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}
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}
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var supportSkin = slices[layer + supportDistanceLayers - 1].getOutline();
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var slice = slices[layer + supportDistanceLayers];
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for (var i = 0; i < slice.parts.length; i ++) {
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var slicePart = slice.parts[i];
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var outerLine = slicePart.outerLine;
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var overlap = supportSkin.offset(supportAcceptanceMargin).intersect(outerLine);
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var overhang = outerLine.difference(overlap);
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if (overlap.length === 0 || overhang.length > 0) {
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supportAreas = supportAreas.union(overhang.offset(supportAcceptanceMargin).intersect(outerLine));
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}
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}
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}
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}
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console.log("opimize paths");
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var start = new THREE.Vector2(0, 0);
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for (var layer = 0; layer < slices.length; layer ++) {
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var slice = slices[layer];
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if (layer === 0) {
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slice.brim = slice.getOutline().offset(brimOffset);
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}
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start = slice.optimizePaths(start);
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for (var i = 0; i < slice.parts.length; i ++) {
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var part = slice.parts[i];
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part.outerLine.scaleDown(scale);
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for (var j = 0; j < part.innerLines.length; j ++) {
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var innerLine = part.innerLines[j];
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innerLine.scaleDown(scale);
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}
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part.fill.scaleDown(scale);
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}
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if (slice.support !== undefined) {
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slice.support.scaleDown(scale);
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}
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if (slice.brim !== undefined) {
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slice.brim.scaleDown(scale);
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}
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}
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return slices;
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};
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D3D.Slicer.prototype.getFillTemplate = function (bounds, size, even, uneven) {
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"use strict";
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var paths = new D3D.Paths([], false);
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if (even) {
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var left = Math.floor(bounds.left / size) * size;
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var right = Math.ceil(bounds.right / size) * size;
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for (var length = left; length <= right; length += size) {
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paths.push([
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{X: length, Y: bounds.top},
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{X: length, Y: bounds.bottom}
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]);
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}
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}
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if (uneven) {
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var top = Math.floor(bounds.top / size) * size;
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var bottom = Math.floor(bounds.bottom / size) * size;
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for (var length = top; length <= bottom; length += size) {
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paths.push([
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{X: bounds.left, Y: length},
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{X: bounds.right, Y: length}
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]);
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}
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}
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return paths;
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};
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D3D.Slicer.prototype.dataToGCode = function (slices, printer) {
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"use strict";
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var gcode = new D3D.GCode().setSettings(printer);
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function pathToGCode (path, retract, unRetract, type) {
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for (var i = 0; i < path.length; i ++) {
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var shape = path[i];
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var length = path.closed ? (shape.length + 1) : shape.length;
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for (var j = 0; j < length; j ++) {
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var point = shape[j % shape.length];
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if (j === 0) {
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gcode.moveTo(point.X, point.Y, layer);
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if (unRetract) {
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gcode.unRetract();
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}
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}
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else {
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gcode.lineTo(point.X, point.Y, layer, type);
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}
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}
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}
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if (retract) {
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gcode.retract();
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}
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}
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for (var layer = 0; layer < slices.length; layer ++) {
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var slice = slices[layer];
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if (layer === 1) {
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gcode.turnFanOn();
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gcode.bottom = false;
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}
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if (slice.brim !== undefined) {
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pathToGCode(slice.brim, true, true, "brim");
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}
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for (var i = 0; i < slice.parts.length; i ++) {
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var part = slice.parts[i];
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pathToGCode(part.outerLine, false, true, "outerLine");
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for (var j = 0; j < part.innerLines.length; j ++) {
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var innerLine = part.innerLines[j];
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pathToGCode(innerLine, false, false, "innerLine");
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}
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pathToGCode(part.fill, true, false, "fill");
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}
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if (slice.support !== undefined) {
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pathToGCode(slice.support, true, true, "support");
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}
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this.progress.gcodeLayer = layer;
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this.updateProgress();
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}
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return gcode.getGCode();
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};
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D3D.Slicer.prototype.getGCode = function (printer) {
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"use strict";
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var layerHeight = printer.config["layerHeight"];
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var dimensionsZ = printer.config["dimensionsZ"];
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this.progress.totalLayers = Math.floor(Math.min(this.geometry.boundingBox.max.y, dimensionsZ) / layerHeight);
|
|
this.progress.sliceLayer = 0;
|
|
this.progress.dataLayer = 0;
|
|
this.progress.gcodeLayer = 0;
|
|
|
|
/*var start = new Date().getTime();
|
|
var slices = this.slice(layerHeight, dimensionsZ);
|
|
var end = new Date().getTime();
|
|
console.log("Slicing: " + (end - start) + "ms");
|
|
|
|
start = new Date().getTime();
|
|
this.slicesToData(slices, printer);
|
|
end = new Date().getTime();
|
|
console.log("Data: " + (end - start) + "ms");
|
|
|
|
start = new Date().getTime();
|
|
var gcode = this.dataToGCode(slices, printer);
|
|
end = new Date().getTime();
|
|
console.log("Gcode: " + (end - start) + "ms");*/
|
|
|
|
var slices = this.slice(layerHeight, dimensionsZ);
|
|
|
|
this.slicesToData(slices, printer);
|
|
|
|
var gcode = this.dataToGCode(slices, printer);
|
|
|
|
return gcode;
|
|
}; |