From 0900eda91d9868140dd37ace2c9acea83a029483 Mon Sep 17 00:00:00 2001 From: casperlamboo Date: Tue, 29 Mar 2016 00:26:58 +0200 Subject: [PATCH] separate into actions into different files --- .../calculateLayersIntersections.js | 50 ++ src/sliceActions/createLines.js | 49 ++ src/sliceActions/generateInfills.js | 82 ++ src/sliceActions/generateInnerLines.js | 44 ++ src/sliceActions/generateSupport.js | 71 ++ src/sliceActions/getFillTemplate.js | 31 + src/sliceActions/intersectionsToShapes.js | 127 ++++ src/sliceActions/optimizePaths.js | 42 ++ src/sliceActions/shapesToSlices.js | 65 ++ src/sliceActions/slicesToGCode.js | 73 ++ src/slicer.js | 706 +----------------- 11 files changed, 673 insertions(+), 667 deletions(-) create mode 100644 src/sliceActions/calculateLayersIntersections.js create mode 100644 src/sliceActions/createLines.js create mode 100644 src/sliceActions/generateInfills.js create mode 100644 src/sliceActions/generateInnerLines.js create mode 100644 src/sliceActions/generateSupport.js create mode 100644 src/sliceActions/getFillTemplate.js create mode 100644 src/sliceActions/intersectionsToShapes.js create mode 100644 src/sliceActions/optimizePaths.js create mode 100644 src/sliceActions/shapesToSlices.js create mode 100644 src/sliceActions/slicesToGCode.js diff --git a/src/sliceActions/calculateLayersIntersections.js b/src/sliceActions/calculateLayersIntersections.js new file mode 100644 index 0000000..ccdcca2 --- /dev/null +++ b/src/sliceActions/calculateLayersIntersections.js @@ -0,0 +1,50 @@ +import THREE from 'three.js'; + +export default function calculateLayersIntersections(lines, settings) { + console.log('calculating layer intersections'); + + var layerHeight = settings.config["layerHeight"]; + var height = settings.config["dimensionsZ"]; + + var numLayers = Math.floor(height / layerHeight); + + var layerIntersectionIndexes = []; + var layerIntersectionPoints = []; + for (var layer = 0; layer < numLayers; layer ++) { + layerIntersectionIndexes[layer] = []; + layerIntersectionPoints[layer] = []; + } + + for (var lineIndex = 0; lineIndex < lines.length; lineIndex ++) { + var line = lines[lineIndex].line; + + var min = Math.ceil(Math.min(line.start.y, line.end.y) / layerHeight); + var max = Math.floor(Math.max(line.start.y, line.end.y) / layerHeight); + + for (var layerIndex = min; layerIndex <= max; layerIndex ++) { + if (layerIndex >= 0 && layerIndex < numLayers) { + + layerIntersectionIndexes[layerIndex].push(lineIndex); + + var y = layerIndex * layerHeight; + + if (line.start.y === line.end.y) { + var x = line.start.x; + var z = line.start.z; + } + else { + var alpha = (y - line.start.y) / (line.end.y - line.start.y); + var x = line.end.x * alpha + line.start.x * (1 - alpha); + var z = line.end.z * alpha + line.start.z * (1 - alpha); + } + + layerIntersectionPoints[layerIndex][lineIndex] = new THREE.Vector2(z, x); + } + } + } + + return { + layerIntersectionIndexes, + layerIntersectionPoints + }; +} diff --git a/src/sliceActions/createLines.js b/src/sliceActions/createLines.js new file mode 100644 index 0000000..1fa6603 --- /dev/null +++ b/src/sliceActions/createLines.js @@ -0,0 +1,49 @@ +import THREE from 'three.js'; + +export default function createLines(geometry, settings) { + console.log('constructing unique lines from geometry'); + + var lines = []; + var lineLookup = {}; + + var addLine = (a, b) => { + var index = lineLookup[b + '_' + a]; + + if (index === undefined) { + index = lines.length; + lineLookup[a + '_' + b] = index; + + lines.push({ + line: new THREE.Line3(geometry.vertices[a], geometry.vertices[b]), + connects: [], + normals: [] + }); + } + + return index; + } + + for (var i = 0; i < geometry.faces.length; i ++) { + var face = geometry.faces[i]; + if (face.normal.y !== 1 && face.normal.y !== -1) { + var normal = new THREE.Vector2(face.normal.z, face.normal.x).normalize(); + + // check for only adding unique lines + // returns index of said line + var a = addLine(face.a, face.b); + var b = addLine(face.b, face.c); + var c = addLine(face.c, face.a); + + // set connecting lines (based on face) + lines[a].connects.push(b, c); + lines[b].connects.push(c, a); + lines[c].connects.push(a, b); + + lines[a].normals.push(normal); + lines[b].normals.push(normal); + lines[c].normals.push(normal); + } + } + + return lines; +} diff --git a/src/sliceActions/generateInfills.js b/src/sliceActions/generateInfills.js new file mode 100644 index 0000000..b284b7d --- /dev/null +++ b/src/sliceActions/generateInfills.js @@ -0,0 +1,82 @@ +import getFillTemplate from './getFillTemplate.js'; +import Paths from '../paths.js'; + +export default function generateInfills(slices, settings) { + console.log("generating infills"); + + // need to scale up everything because of clipper rounding errors + var scale = 100; + + var layerHeight = settings.config["layerHeight"]; + var fillGridSize = settings.config["fillGridSize"] * scale; + var bottomThickness = settings.config["bottomThickness"]; + var topThickness = settings.config["topThickness"]; + var nozzleDiameter = settings.config["nozzleDiameter"] * scale; + var infillOverlap = settings.config["infillOverlap"] * scale; + + var bottomSkinCount = Math.ceil(bottomThickness/layerHeight); + var topSkinCount = Math.ceil(topThickness/layerHeight); + var nozzleRadius = nozzleDiameter / 2; + var hightemplateSize = Math.sqrt(2 * Math.pow(nozzleDiameter, 2)); + + for (var layer = 0; layer < slices.length; layer ++) { + var slice = slices[layer]; + + if (layer - bottomSkinCount >= 0 && layer + topSkinCount < slices.length) { + var downSkin = slices[layer - bottomSkinCount].getOutline(); + var upSkin = slices[layer + topSkinCount].getOutline(); + var surroundingLayer = upSkin.intersect(downSkin); + } + else { + var surroundingLayer = false; + } + + for (var i = 0; i < slice.parts.length; i ++) { + var part = slice.parts[i]; + + if (!part.intersect.closed) { + continue; + } + + var outerLine = part.outerLine; + + if (outerLine.length > 0) { + var inset = (part.innerLines.length > 0) ? part.innerLines[part.innerLines.length - 1] : outerLine; + + var fillArea = inset.offset(-nozzleRadius); + var lowFillArea = false; + if (surroundingLayer) { + var highFillArea = fillArea.difference(surroundingLayer); + + if (infillOverlap > 0) { + highFillArea = highFillArea.offset(infillOverlap); + } + + highFillArea = highFillArea.intersect(fillArea); + + var lowFillArea = fillArea.difference(highFillArea); + } + else { + var highFillArea = fillArea; + } + + var fill = new Paths([], false); + + if (lowFillArea && lowFillArea.length > 0) { + var bounds = lowFillArea.bounds(); + var lowFillTemplate = getFillTemplate(bounds, fillGridSize, true, true); + + part.fill.join(lowFillTemplate.intersect(lowFillArea)); + } + + if (highFillArea.length > 0) { + var bounds = highFillArea.bounds(); + var even = (layer % 2 === 0); + var highFillTemplate = getFillTemplate(bounds, hightemplateSize, even, !even); + + part.fill.join(highFillTemplate.intersect(highFillArea)); + } + } + } + } +} diff --git a/src/sliceActions/generateInnerLines.js b/src/sliceActions/generateInnerLines.js new file mode 100644 index 0000000..fb9c850 --- /dev/null +++ b/src/sliceActions/generateInnerLines.js @@ -0,0 +1,44 @@ +export default function generateInnerLines(slices, settings) { + console.log("generating outer lines and inner lines"); + + // need to scale up everything because of clipper rounding errors + var scale = 100; + + var layerHeight = settings.config["layerHeight"]; + var nozzleDiameter = settings.config["nozzleDiameter"] * scale; + var shellThickness = settings.config["shellThickness"] * scale; + var nozzleRadius = nozzleDiameter / 2; + var shells = Math.round(shellThickness / nozzleDiameter); + + for (var layer = 0; layer < slices.length; layer ++) { + var slice = slices[layer]; + + for (var i = 0; i < slice.parts.length; i ++) { + var part = slice.parts[i]; + + if (!part.intersect.closed) { + continue; + } + + // var outerLine = part.intersect.clone().scaleUp(scale).offset(-nozzleRadius); + var outerLine = part.intersect.scaleUp(scale).offset(-nozzleRadius); + + if (outerLine.length > 0) { + part.outerLine = outerLine; + + for (var shell = 1; shell < shells; shell += 1) { + var offset = shell * nozzleDiameter; + + var innerLine = outerLine.offset(-offset); + + if (innerLine.length > 0) { + part.innerLines.push(innerLine); + } + else { + break; + } + } + } + } + } +} diff --git a/src/sliceActions/generateSupport.js b/src/sliceActions/generateSupport.js new file mode 100644 index 0000000..05fe0a5 --- /dev/null +++ b/src/sliceActions/generateSupport.js @@ -0,0 +1,71 @@ +import getFillTemplate from './getFillTemplate.js'; +import Paths from '../paths.js'; + +export default function generateSupport(slices, settings) { + console.log("generating support"); + + // need to scale up everything because of clipper rounding errors + var scale = 100; + + var layerHeight = settings.config["layerHeight"]; + var supportGridSize = settings.config["supportGridSize"] * scale; + var supportAcceptanceMargin = settings.config["supportAcceptanceMargin"] * scale; + var supportMargin = settings.config["supportMargin"] * scale; + var plateSize = settings.config["supportPlateSize"] * scale; + var supportDistanceY = settings.config["supportDistanceY"]; + var supportDistanceLayers = Math.max(Math.ceil(supportDistanceY / layerHeight), 1); + var nozzleDiameter = settings.config["nozzleDiameter"] * scale; + + var supportAreas = new Paths([], true); + + for (var layer = slices.length - 1 - supportDistanceLayers; layer >= 0; layer --) { + var currentSlice = slices[layer]; + + if (supportAreas.length > 0) { + + if (layer >= supportDistanceLayers) { + var sliceSkin = slices[layer - supportDistanceLayers].getOutline(); + sliceSkin = sliceSkin; + + var supportAreasSlimmed = supportAreas.difference(sliceSkin.offset(supportMargin)); + if (supportAreasSlimmed.area() < 100.0) { + supportAreas = supportAreas.difference(sliceSkin); + } + else { + supportAreas = supportAreasSlimmed; + } + } + + + var supportTemplate = getFillTemplate(supportAreas.bounds(), supportGridSize, true, true); + var supportFill = supportTemplate.intersect(supportAreas); + if (supportFill.length === 0) { + currentSlice.support = supportAreas.clone(); + } + else { + currentSlice.support = supportFill; + } + } + + var supportSkin = slices[layer + supportDistanceLayers - 1].getOutline(); + + var slice = slices[layer + supportDistanceLayers]; + for (var i = 0; i < slice.parts.length; i ++) { + var slicePart = slice.parts[i]; + + if (slicePart.intersect.closed) { + var outerLine = slicePart.outerLine; + } + else { + var outerLine = slicePart.intersect.offset(supportAcceptanceMargin); + } + + var overlap = supportSkin.offset(supportAcceptanceMargin).intersect(outerLine); + var overhang = outerLine.difference(overlap); + + if (overlap.length === 0 || overhang.length > 0) { + supportAreas = supportAreas.join(overhang); + } + } + } +} diff --git a/src/sliceActions/getFillTemplate.js b/src/sliceActions/getFillTemplate.js new file mode 100644 index 0000000..034e51f --- /dev/null +++ b/src/sliceActions/getFillTemplate.js @@ -0,0 +1,31 @@ +import Paths from '../paths.js'; + +export default function getFillTemplate(bounds, size, even, uneven) { + var paths = new Paths([], false); + + var left = Math.floor(bounds.left / size) * size; + var right = Math.ceil(bounds.right / size) * size; + var top = Math.floor(bounds.top / size) * size; + var bottom = Math.ceil(bounds.bottom / size) * size; + + var width = right - left; + + if (even) { + for (var y = top; y <= bottom + width; y += size) { + paths.push([ + {X: left, Y: y}, + {X: right, Y: y - width} + ]); + } + } + if (uneven) { + for (var y = top - width; y <= bottom; y += size) { + paths.push([ + {X: left, Y: y}, + {X: right, Y: y + width} + ]); + } + } + + return paths; +} diff --git a/src/sliceActions/intersectionsToShapes.js b/src/sliceActions/intersectionsToShapes.js new file mode 100644 index 0000000..fe4f2fa --- /dev/null +++ b/src/sliceActions/intersectionsToShapes.js @@ -0,0 +1,127 @@ +import THREE from 'three.js'; +import Paths from '../paths.js'; + +export default function intersectionsToShapes(layerIntersectionIndexes, layerIntersectionPoints, lines, settings) { + console.log("generating slices"); + + var shapes = []; + + for (var layer = 1; layer < layerIntersectionIndexes.length; layer ++) { + var intersectionIndexes = layerIntersectionIndexes[layer]; + var intersectionPoints = layerIntersectionPoints[layer]; + + if (intersectionIndexes.length === 0) { + continue; + } + + var shapeParts = []; + for (var i = 0; i < intersectionIndexes.length; i ++) { + var index = intersectionIndexes[i]; + + if (intersectionPoints[index] === undefined) { + continue; + } + + var firstPoints = [index]; + var isFirstPoint = true; + var closed = false; + + var shape = []; + + while (index !== -1) { + var intersection = intersectionPoints[index]; + // uppercase X and Y because clipper vector + shape.push({X: intersection.x, Y: intersection.y}); + + delete intersectionPoints[index]; + + var connects = lines[index].connects; + var faceNormals = lines[index].normals; + + for (var j = 0; j < connects.length; j ++) { + var index = connects[j]; + + if (firstPoints.indexOf(index) !== -1 && shape.length > 2) { + closed = true; + index = -1; + break; + } + + // Check if index has an intersection or is already used + if (intersectionPoints[index] !== undefined) { + var faceNormal = faceNormals[Math.floor(j / 2)]; + + var a = new THREE.Vector2(intersection.x, intersection.y); + var b = new THREE.Vector2(intersectionPoints[index].x, intersectionPoints[index].y); + + // can't calculate normal between points if distance is smaller as 0.0001 + if ((faceNormal.x === 0 && faceNormal.y === 0) || a.distanceTo(b) < 0.0001) { + if (isFirstPoint) { + firstPoints.push(index); + } + + delete intersectionPoints[index]; + + connects = connects.concat(lines[index].connects); + faceNormals = faceNormals.concat(lines[index].normals); + index = -1; + } + else { + // make sure the path goes the right direction + // THREE.Vector2.normal is not yet implimented + // var normal = a.sub(b).normal().normalize(); + var normal = a.sub(b); + normal.set(-normal.y, normal.x).normalize(); + + if (normal.dot(faceNormal) > 0) { + break; + } + else { + index = -1; + } + } + } + else { + index = -1; + } + } + isFirstPoint = false; + } + + if (!closed) { + var index = firstPoints[0]; + + while (index !== -1) { + if (firstPoints.indexOf(index) === -1) { + var intersection = intersectionPoints[index]; + shape.unshift({X: intersection.x, Y: intersection.y}); + + delete intersectionPoints[index]; + } + + var connects = lines[index].connects; + + for (var i = 0; i < connects.length; i ++) { + var index = connects[i]; + + if (intersectionPoints[index] !== undefined) { + break; + } + else { + index = -1; + } + } + } + } + + var part = new Paths([shape], closed).clean(0.01); + if (part.length > 0) { + shapeParts.push(part); + } + } + + shapes.push(shapeParts); + } + + return shapes; +} diff --git a/src/sliceActions/optimizePaths.js b/src/sliceActions/optimizePaths.js new file mode 100644 index 0000000..9ed9b3a --- /dev/null +++ b/src/sliceActions/optimizePaths.js @@ -0,0 +1,42 @@ +import THREE from 'three.js'; + +export default function optimizePaths(slices, settings) { + console.log("opimize paths"); + + // need to scale up everything because of clipper rounding errors + var scale = 100; + + var brimOffset = settings.config["brimOffset"] * scale; + + var start = new THREE.Vector2(0, 0); + + for (var layer = 0; layer < slices.length; layer ++) { + var slice = slices[layer]; + + if (layer === 0) { + slice.brim = slice.getOutline().offset(brimOffset); + } + + start = slice.optimizePaths(start); + + for (var i = 0; i < slice.parts.length; i ++) { + var part = slice.parts[i]; + + if (part.intersect.closed) { + part.outerLine.scaleDown(scale); + for (var j = 0; j < part.innerLines.length; j ++) { + var innerLine = part.innerLines[j]; + innerLine.scaleDown(scale); + } + part.fill.scaleDown(scale); + } + } + + if (slice.support !== undefined) { + slice.support.scaleDown(scale); + } + if (slice.brim !== undefined) { + slice.brim.scaleDown(scale); + } + } +} diff --git a/src/sliceActions/shapesToSlices.js b/src/sliceActions/shapesToSlices.js new file mode 100644 index 0000000..d261ca1 --- /dev/null +++ b/src/sliceActions/shapesToSlices.js @@ -0,0 +1,65 @@ +import Slice from '../slice.js'; + +export default function shapesToSlices(shapes, settings) { + var slices = []; + + for (var layer = 0; layer < shapes.length; layer ++) { + var shapeParts = shapes[layer]; + + var slice = new Slice(); + + var holes = []; + var outlines = []; + + for (var i = 0; i < shapeParts.length; i ++) { + var shape = shapeParts[i]; + + if (!shape.closed) { + slice.add(shape); + } + else if (shape.isHole()) { + holes.push(shape); + } + else { + slice.add(shape); + outlines.push(shape); + } + } + + outlines.sort((a, b) => { + return a.boundSize() - b.boundSize(); + }); + + if (holes.length > outlines.length) { + [holes, outlines] = [outlines, holes]; + } + else if (holes.length === outlines.length) { + holes.sort((a, b) => { + return a.boundSize() - b.boundSize(); + }); + + if (holes[0].boundSize > outlines[0].boundSize()) { + [holes, outlines] = [outlines, holes]; + } + } + + for (var i = 0; i < holes.length; i ++) { + var hole = holes[i]; + + for (var j = 0; j < outlines.length; j ++) { + var outline = outlines[j]; + + if (outline.pointCollision(hole[0][0])) { + outline.join(hole); + break; + } + } + } + + slice.removeSelfIntersect(); + + slices.push(slice); + } + + return slices; +} diff --git a/src/sliceActions/slicesToGCode.js b/src/sliceActions/slicesToGCode.js new file mode 100644 index 0000000..6d9ab1a --- /dev/null +++ b/src/sliceActions/slicesToGCode.js @@ -0,0 +1,73 @@ +import GCode from '../gcode.js'; + +export default function slicesToGCode(slices, settings) { + var gcode = new GCode().setSettings(settings); + + function pathToGCode (path, retract, unRetract, type) { + + for (var i = 0; i < path.length; i ++) { + var shape = path[i]; + + var length = path.closed ? (shape.length + 1) : shape.length; + + for (var j = 0; j < length; j ++) { + var point = shape[j % shape.length]; + + if (j === 0) { + // TODO + // moveTo should impliment combing + gcode.moveTo(point.X, point.Y, layer); + + if (unRetract) { + gcode.unRetract(); + } + } + else { + gcode.lineTo(point.X, point.Y, layer, type); + } + } + } + + if (retract) { + gcode.retract(); + } + } + + for (var layer = 0; layer < slices.length; layer ++) { + var slice = slices[layer]; + + if (layer === 1) { + gcode.turnFanOn(); + gcode.bottom = false; + } + + if (slice.brim !== undefined) { + pathToGCode(slice.brim, true, true, "brim"); + } + + for (var i = 0; i < slice.parts.length; i ++) { + var part = slice.parts[i]; + + if (part.intersect.closed) { + pathToGCode(part.outerLine, false, true, "outerLine"); + + for (var j = 0; j < part.innerLines.length; j ++) { + var innerLine = part.innerLines[j]; + pathToGCode(innerLine, false, false, "innerLine"); + } + + pathToGCode(part.fill, true, false, "fill"); + } + else { + var retract = !(slice.parts.length === 1 && slice.support === undefined); + pathToGCode(part.intersect, retract, retract, "outerLine"); + } + } + + if (slice.support !== undefined) { + pathToGCode(slice.support, true, true, "support"); + } + } + + return gcode.getGCode(); +} diff --git a/src/slicer.js b/src/slicer.js index e0d0dec..4b0a36b 100644 --- a/src/slicer.js +++ b/src/slicer.js @@ -1,7 +1,13 @@ import THREE from 'three.js'; -import Paths from './paths.js'; -import Slice from './slice.js'; -import GCode from './gcode.js'; +import calculateLayersIntersections from './sliceActions/calculateLayersIntersections.js'; +import createLines from './sliceActions/createLines.js'; +import generateInfills from './sliceActions/generateInfills.js'; +import generateInnerLines from './sliceActions/generateInnerLines.js'; +import generateSupport from './sliceActions/generateSupport.js'; +import intersectionsToShapes from './sliceActions/intersectionsToShapes.js'; +import optimizePaths from './sliceActions/optimizePaths.js'; +import shapesToSlices from './sliceActions/shapesToSlices.js'; +import slicesToGCode from './sliceActions/slicesToGCode.js'; export default class { constructor () { @@ -54,25 +60,43 @@ export default class { var supportEnabled = settings.config['supportEnabled']; // get unique lines from geometry; - var lines = this._createLines(settings); + var lines = createLines(this.geometry, settings); + this.progress.createdLines = true; + this._updateProgress(settings); - var {layerIntersectionIndexes, layerIntersectionPoints} = this._calculateLayersIntersections(lines, settings); + var {layerIntersectionIndexes, layerIntersectionPoints} = calculateLayersIntersections(lines, settings); + this.progress.calculatedLayerIntersections = true; + this._updateProgress(settings); - var shapes = this._intersectionsToShapes(layerIntersectionIndexes, layerIntersectionPoints, lines, settings); + var shapes = intersectionsToShapes(layerIntersectionIndexes, layerIntersectionPoints, lines, settings); + this.progress.sliced = true; + this._updateProgress(settings); - var slices = this._shapesToSlices(shapes, settings); + var slices = shapesToSlices(shapes, settings); + this.progress.generatedSlices = true; + this._updateProgress(settings); + + generateInnerLines(slices, settings); + this.progress.generatedInnerLines = true; + this._updateProgress(settings); + + generateInfills(slices, settings); + this.progress.generatedInfills = true; + this._updateProgress(settings); - this._generateInnerLines(slices, settings); - - this._generateInfills(slices, settings); - if (supportEnabled) { - this._generateSupport(slices, settings); + generateSupport(slices, settings); + this.progress.generatedSupport = true; + this._updateProgress(settings); } - - this._optimizePaths(slices, settings); - var gcode = this._slicesToGCode(slices, settings); + optimizePaths(slices, settings); + this.progress.optimizedPaths = true; + this._updateProgress(settings); + + var gcode = slicesToGCode(slices, settings); + this.progress.generatedGCode = true; + this._updateProgress(settings); if (this.onfinish !== undefined) { this.onfinish(gcode); @@ -81,658 +105,6 @@ export default class { return gcode; } - _createLines (settings) { - console.log('constructing unique lines from geometry'); - - var lines = []; - var lineLookup = {}; - - var addLine = (a, b) => { - var index = lineLookup[b + '_' + a]; - - if (index === undefined) { - index = lines.length; - lineLookup[a + '_' + b] = index; - - lines.push({ - line: new THREE.Line3(this.geometry.vertices[a], this.geometry.vertices[b]), - connects: [], - normals: [] - }); - } - - return index; - } - - for (var i = 0; i < this.geometry.faces.length; i ++) { - var face = this.geometry.faces[i]; - if (face.normal.y !== 1 && face.normal.y !== -1) { - var normal = new THREE.Vector2(face.normal.z, face.normal.x).normalize(); - - // check for only adding unique lines - // returns index of said line - var a = addLine(face.a, face.b); - var b = addLine(face.b, face.c); - var c = addLine(face.c, face.a); - - // set connecting lines (based on face) - lines[a].connects.push(b, c); - lines[b].connects.push(c, a); - lines[c].connects.push(a, b); - - lines[a].normals.push(normal); - lines[b].normals.push(normal); - lines[c].normals.push(normal); - } - } - - this.progress.createdLines = true; - this._updateProgress(settings); - - return lines; - } - - _calculateLayersIntersections (lines, settings) { - console.log('calculating layer intersections'); - - var layerHeight = settings.config["layerHeight"]; - var height = settings.config["dimensionsZ"]; - - var numLayers = Math.floor(height / layerHeight); - - var layerIntersectionIndexes = []; - var layerIntersectionPoints = []; - for (var layer = 0; layer < numLayers; layer ++) { - layerIntersectionIndexes[layer] = []; - layerIntersectionPoints[layer] = []; - } - - for (var lineIndex = 0; lineIndex < lines.length; lineIndex ++) { - var line = lines[lineIndex].line; - - var min = Math.ceil(Math.min(line.start.y, line.end.y) / layerHeight); - var max = Math.floor(Math.max(line.start.y, line.end.y) / layerHeight); - - for (var layerIndex = min; layerIndex <= max; layerIndex ++) { - if (layerIndex >= 0 && layerIndex < numLayers) { - - layerIntersectionIndexes[layerIndex].push(lineIndex); - - var y = layerIndex * layerHeight; - - if (line.start.y === line.end.y) { - var x = line.start.x; - var z = line.start.z; - } - else { - var alpha = (y - line.start.y) / (line.end.y - line.start.y); - var x = line.end.x * alpha + line.start.x * (1 - alpha); - var z = line.end.z * alpha + line.start.z * (1 - alpha); - } - - layerIntersectionPoints[layerIndex][lineIndex] = new THREE.Vector2(z, x); - } - } - } - - this.progress.calculatedLayerIntersections = true; - this._updateProgress(settings); - - return { - layerIntersectionIndexes, - layerIntersectionPoints - }; - } - - _intersectionsToShapes (layerIntersectionIndexes, layerIntersectionPoints, lines, settings) { - console.log("generating slices"); - - var shapes = []; - - for (var layer = 1; layer < layerIntersectionIndexes.length; layer ++) { - var intersectionIndexes = layerIntersectionIndexes[layer]; - var intersectionPoints = layerIntersectionPoints[layer]; - - if (intersectionIndexes.length === 0) { - continue; - } - - var shapeParts = []; - for (var i = 0; i < intersectionIndexes.length; i ++) { - var index = intersectionIndexes[i]; - - if (intersectionPoints[index] === undefined) { - continue; - } - - var firstPoints = [index]; - var isFirstPoint = true; - var closed = false; - - var shape = []; - - while (index !== -1) { - var intersection = intersectionPoints[index]; - // uppercase X and Y because clipper vector - shape.push({X: intersection.x, Y: intersection.y}); - - delete intersectionPoints[index]; - - var connects = lines[index].connects; - var faceNormals = lines[index].normals; - - for (var j = 0; j < connects.length; j ++) { - var index = connects[j]; - - if (firstPoints.indexOf(index) !== -1 && shape.length > 2) { - closed = true; - index = -1; - break; - } - - // Check if index has an intersection or is already used - if (intersectionPoints[index] !== undefined) { - var faceNormal = faceNormals[Math.floor(j / 2)]; - - var a = new THREE.Vector2(intersection.x, intersection.y); - var b = new THREE.Vector2(intersectionPoints[index].x, intersectionPoints[index].y); - - // can't calculate normal between points if distance is smaller as 0.0001 - if ((faceNormal.x === 0 && faceNormal.y === 0) || a.distanceTo(b) < 0.0001) { - if (isFirstPoint) { - firstPoints.push(index); - } - - delete intersectionPoints[index]; - - connects = connects.concat(lines[index].connects); - faceNormals = faceNormals.concat(lines[index].normals); - index = -1; - } - else { - // make sure the path goes the right direction - // THREE.Vector2.normal is not yet implimented - // var normal = a.sub(b).normal().normalize(); - var normal = a.sub(b); - normal.set(-normal.y, normal.x).normalize(); - - if (normal.dot(faceNormal) > 0) { - break; - } - else { - index = -1; - } - } - } - else { - index = -1; - } - } - isFirstPoint = false; - } - - if (!closed) { - var index = firstPoints[0]; - - while (index !== -1) { - if (firstPoints.indexOf(index) === -1) { - var intersection = intersectionPoints[index]; - shape.unshift({X: intersection.x, Y: intersection.y}); - - delete intersectionPoints[index]; - } - - var connects = lines[index].connects; - - for (var i = 0; i < connects.length; i ++) { - var index = connects[i]; - - if (intersectionPoints[index] !== undefined) { - break; - } - else { - index = -1; - } - } - } - } - - var part = new Paths([shape], closed).clean(0.01); - if (part.length > 0) { - shapeParts.push(part); - } - } - - shapes.push(shapeParts); - } - - this.progress.sliced = true; - this._updateProgress(settings); - - return shapes; - } - - _shapesToSlices (shapes, settings) { - var slices = []; - - for (var layer = 0; layer < shapes.length; layer ++) { - var shapeParts = shapes[layer]; - - var slice = new Slice(); - - var holes = []; - var outlines = []; - - for (var i = 0; i < shapeParts.length; i ++) { - var shape = shapeParts[i]; - - if (!shape.closed) { - slice.add(shape); - } - else if (shape.isHole()) { - holes.push(shape); - } - else { - slice.add(shape); - outlines.push(shape); - } - } - - outlines.sort((a, b) => { - return a.boundSize() - b.boundSize(); - }); - - console.log('test'); - - if (holes.length > outlines.length) { - [holes, outlines] = [outlines, holes]; - } - else if (holes.length === outlines.length) { - holes.sort((a, b) => { - return a.boundSize() - b.boundSize(); - }); - - if (holes[0].boundSize > outlines[0].boundSize()) { - [holes, outlines] = [outlines, holes]; - } - } - - for (var i = 0; i < holes.length; i ++) { - var hole = holes[i]; - - for (var j = 0; j < outlines.length; j ++) { - var outline = outlines[j]; - - if (outline.pointCollision(hole[0][0])) { - outline.join(hole); - break; - } - } - } - - slice.removeSelfIntersect(); - - slices.push(slice); - } - - this.progress.generatedSlices = true; - this._updateProgress(settings); - - return slices; - } - - _generateInnerLines (slices, settings) { - console.log("generating outer lines and inner lines"); - - // need to scale up everything because of clipper rounding errors - var scale = 100; - - var layerHeight = settings.config["layerHeight"]; - var nozzleDiameter = settings.config["nozzleDiameter"] * scale; - var shellThickness = settings.config["shellThickness"] * scale; - var nozzleRadius = nozzleDiameter / 2; - var shells = Math.round(shellThickness / nozzleDiameter); - - for (var layer = 0; layer < slices.length; layer ++) { - var slice = slices[layer]; - - for (var i = 0; i < slice.parts.length; i ++) { - var part = slice.parts[i]; - - if (!part.intersect.closed) { - continue; - } - - // var outerLine = part.intersect.clone().scaleUp(scale).offset(-nozzleRadius); - var outerLine = part.intersect.scaleUp(scale).offset(-nozzleRadius); - - if (outerLine.length > 0) { - part.outerLine = outerLine; - - for (var shell = 1; shell < shells; shell += 1) { - var offset = shell * nozzleDiameter; - - var innerLine = outerLine.offset(-offset); - - if (innerLine.length > 0) { - part.innerLines.push(innerLine); - } - else { - break; - } - } - } - } - } - - this.progress.generatedInnerLines = true; - this._updateProgress(settings); - } - - _generateInfills (slices, settings) { - console.log("generating infills"); - - // need to scale up everything because of clipper rounding errors - var scale = 100; - - var layerHeight = settings.config["layerHeight"]; - var fillGridSize = settings.config["fillGridSize"] * scale; - var bottomThickness = settings.config["bottomThickness"]; - var topThickness = settings.config["topThickness"]; - var nozzleDiameter = settings.config["nozzleDiameter"] * scale; - var infillOverlap = settings.config["infillOverlap"] * scale; - - var bottomSkinCount = Math.ceil(bottomThickness/layerHeight); - var topSkinCount = Math.ceil(topThickness/layerHeight); - var nozzleRadius = nozzleDiameter / 2; - var hightemplateSize = Math.sqrt(2 * Math.pow(nozzleDiameter, 2)); - - for (var layer = 0; layer < slices.length; layer ++) { - var slice = slices[layer]; - - if (layer - bottomSkinCount >= 0 && layer + topSkinCount < slices.length) { - var downSkin = slices[layer - bottomSkinCount].getOutline(); - var upSkin = slices[layer + topSkinCount].getOutline(); - var surroundingLayer = upSkin.intersect(downSkin); - } - else { - var surroundingLayer = false; - } - - for (var i = 0; i < slice.parts.length; i ++) { - var part = slice.parts[i]; - - if (!part.intersect.closed) { - continue; - } - - var outerLine = part.outerLine; - - if (outerLine.length > 0) { - var inset = (part.innerLines.length > 0) ? part.innerLines[part.innerLines.length - 1] : outerLine; - - var fillArea = inset.offset(-nozzleRadius); - var lowFillArea = false; - if (surroundingLayer) { - var highFillArea = fillArea.difference(surroundingLayer); - - if (infillOverlap > 0) { - highFillArea = highFillArea.offset(infillOverlap); - } - - highFillArea = highFillArea.intersect(fillArea); - - var lowFillArea = fillArea.difference(highFillArea); - } - else { - var highFillArea = fillArea; - } - - var fill = new Paths([], false); - - if (lowFillArea && lowFillArea.length > 0) { - var bounds = lowFillArea.bounds(); - var lowFillTemplate = this._getFillTemplate(bounds, fillGridSize, true, true); - - part.fill.join(lowFillTemplate.intersect(lowFillArea)); - } - - if (highFillArea.length > 0) { - var bounds = highFillArea.bounds(); - var even = (layer % 2 === 0); - var highFillTemplate = this._getFillTemplate(bounds, hightemplateSize, even, !even); - - part.fill.join(highFillTemplate.intersect(highFillArea)); - } - } - } - } - - this.progress.generatedInfills = true; - this._updateProgress(settings); - } - - _generateSupport (slices, settings) { - console.log("generating support"); - - // need to scale up everything because of clipper rounding errors - var scale = 100; - - var layerHeight = settings.config["layerHeight"]; - var supportGridSize = settings.config["supportGridSize"] * scale; - var supportAcceptanceMargin = settings.config["supportAcceptanceMargin"] * scale; - var supportMargin = settings.config["supportMargin"] * scale; - var plateSize = settings.config["supportPlateSize"] * scale; - var supportDistanceY = settings.config["supportDistanceY"]; - var supportDistanceLayers = Math.max(Math.ceil(supportDistanceY / layerHeight), 1); - var nozzleDiameter = settings.config["nozzleDiameter"] * scale; - - var supportAreas = new Paths([], true); - - for (var layer = slices.length - 1 - supportDistanceLayers; layer >= 0; layer --) { - var currentSlice = slices[layer]; - - if (supportAreas.length > 0) { - - if (layer >= supportDistanceLayers) { - var sliceSkin = slices[layer - supportDistanceLayers].getOutline(); - sliceSkin = sliceSkin; - - var supportAreasSlimmed = supportAreas.difference(sliceSkin.offset(supportMargin)); - if (supportAreasSlimmed.area() < 100.0) { - supportAreas = supportAreas.difference(sliceSkin); - } - else { - supportAreas = supportAreasSlimmed; - } - } - - - var supportTemplate = this._getFillTemplate(supportAreas.bounds(), supportGridSize, true, true); - var supportFill = supportTemplate.intersect(supportAreas); - if (supportFill.length === 0) { - currentSlice.support = supportAreas.clone(); - } - else { - currentSlice.support = supportFill; - } - } - - var supportSkin = slices[layer + supportDistanceLayers - 1].getOutline(); - - var slice = slices[layer + supportDistanceLayers]; - for (var i = 0; i < slice.parts.length; i ++) { - var slicePart = slice.parts[i]; - - if (slicePart.intersect.closed) { - var outerLine = slicePart.outerLine; - } - else { - var outerLine = slicePart.intersect.offset(supportAcceptanceMargin); - } - - var overlap = supportSkin.offset(supportAcceptanceMargin).intersect(outerLine); - var overhang = outerLine.difference(overlap); - - if (overlap.length === 0 || overhang.length > 0) { - supportAreas = supportAreas.join(overhang); - } - } - } - - this.progress.generatedSupport = true; - this._updateProgress(settings); - } - - _optimizePaths (slices, settings) { - console.log("opimize paths"); - - // need to scale up everything because of clipper rounding errors - var scale = 100; - - var brimOffset = settings.config["brimOffset"] * scale; - - var start = new THREE.Vector2(0, 0); - - for (var layer = 0; layer < slices.length; layer ++) { - var slice = slices[layer]; - - if (layer === 0) { - slice.brim = slice.getOutline().offset(brimOffset); - } - - start = slice.optimizePaths(start); - - for (var i = 0; i < slice.parts.length; i ++) { - var part = slice.parts[i]; - - if (part.intersect.closed) { - part.outerLine.scaleDown(scale); - for (var j = 0; j < part.innerLines.length; j ++) { - var innerLine = part.innerLines[j]; - innerLine.scaleDown(scale); - } - part.fill.scaleDown(scale); - } - } - - if (slice.support !== undefined) { - slice.support.scaleDown(scale); - } - if (slice.brim !== undefined) { - slice.brim.scaleDown(scale); - } - } - - this.progress.optimizedPaths = true; - this._updateProgress(settings); - } - - _getFillTemplate (bounds, size, even, uneven) { - var paths = new Paths([], false); - - var left = Math.floor(bounds.left / size) * size; - var right = Math.ceil(bounds.right / size) * size; - var top = Math.floor(bounds.top / size) * size; - var bottom = Math.ceil(bounds.bottom / size) * size; - - var width = right - left; - - if (even) { - for (var y = top; y <= bottom + width; y += size) { - paths.push([ - {X: left, Y: y}, - {X: right, Y: y - width} - ]); - } - } - if (uneven) { - for (var y = top - width; y <= bottom; y += size) { - paths.push([ - {X: left, Y: y}, - {X: right, Y: y + width} - ]); - } - } - - return paths; - } - - _slicesToGCode (slices, settings) { - var gcode = new GCode().setSettings(settings); - - function pathToGCode (path, retract, unRetract, type) { - - for (var i = 0; i < path.length; i ++) { - var shape = path[i]; - - var length = path.closed ? (shape.length + 1) : shape.length; - - for (var j = 0; j < length; j ++) { - var point = shape[j % shape.length]; - - if (j === 0) { - // TODO - // moveTo should impliment combing - gcode.moveTo(point.X, point.Y, layer); - - if (unRetract) { - gcode.unRetract(); - } - } - else { - gcode.lineTo(point.X, point.Y, layer, type); - } - } - } - - if (retract) { - gcode.retract(); - } - } - - for (var layer = 0; layer < slices.length; layer ++) { - var slice = slices[layer]; - - if (layer === 1) { - gcode.turnFanOn(); - gcode.bottom = false; - } - - if (slice.brim !== undefined) { - pathToGCode(slice.brim, true, true, "brim"); - } - - for (var i = 0; i < slice.parts.length; i ++) { - var part = slice.parts[i]; - - if (part.intersect.closed) { - pathToGCode(part.outerLine, false, true, "outerLine"); - - for (var j = 0; j < part.innerLines.length; j ++) { - var innerLine = part.innerLines[j]; - pathToGCode(innerLine, false, false, "innerLine"); - } - - pathToGCode(part.fill, true, false, "fill"); - } - else { - var retract = !(slice.parts.length === 1 && slice.support === undefined); - pathToGCode(part.intersect, retract, retract, "outerLine"); - } - } - - if (slice.support !== undefined) { - pathToGCode(slice.support, true, true, "support"); - } - } - - this.progress.generatedGCode = true; - this._updateProgress(settings); - - return gcode.getGCode(); - } - _updateProgress (settings) { if (this.onprogress !== undefined) { var supportEnabled = settings.config["supportEnabled"];