611 lines
20 KiB
JavaScript
611 lines
20 KiB
JavaScript
/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
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"use strict";
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(function() {
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if (!self.kiri.driver) self.kiri.driver = { };
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if (self.kiri.driver.LASER) return;
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const KIRI = self.kiri,
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BASE = self.base,
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UTIL = BASE.util,
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POLY = BASE.polygons,
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FDM = KIRI.driver.FDM,
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CAM = KIRI.driver.CAM,
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LASER = KIRI.driver.LASER = {
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init,
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slice,
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prepare,
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export: exportLaser,
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exportGCode,
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exportSVG,
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exportDXF
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},
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SLICER = KIRI.slicer,
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newPoint = BASE.newPoint;
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function init(kiri, api) {
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api.event.on("settings.saved", (settings) => {
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let UI = kiri.api.ui;
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UI.knife.marker.style.display = UI.knifeOn.checked ? '' : 'none';
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});
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}
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/**
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* DRIVER SLICE CONTRACT
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*
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* @param {Object} settings
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* @param {Widget} Widget
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* @param {Function} onupdate (called with % complete and optional message)
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* @param {Function} ondone (called when complete with an array of Slice objects)
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*/
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function slice(settings, widget, onupdate, ondone) {
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let proc = settings.process;
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let offset = proc.laserOffset;
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if (proc.laserSliceHeight < 0) {
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return ondone("invalid slice height");
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}
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SLICER.sliceWidget(widget, {
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single: proc.laserSliceSingle,
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height: proc.laserSliceHeight,
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minHeight: proc.laserSliceHeight === 0 ? proc.laserSliceHeightMin : 0
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}, function(slices) {
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widget.slices = slices;
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slices.forEach(function(slice, index) {
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let tops = slice.tops.map(t => t.poly);
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let offsets = slice.offset = offset ?
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POLY.offset(tops, offset, {z: slice.z, miter: 2 / offset}) : tops;
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slice.output().setLayer("layer", { line: 0x888800 }).addPolys(tops);
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slice.output().setLayer("cut").addPolys(offsets);
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onupdate(0.80 + (index/slices.length) * 0.20);
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});
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ondone();
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}, function(update) {
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onupdate(0.0 + update * 0.80)
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});
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};
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function sliceEmitObjects(print, slice, groups, simple) {
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let start = newPoint(0,0,0);
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let process = print.settings.process;
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let grouped = process.outputLaserGroup;
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let group = [];
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let zcolor = print.settings.process.outputLaserZColor;
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group.thick = slice.thick;
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function laserOut(poly, group) {
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if (!poly) {
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return;
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}
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if (Array.isArray(poly)) {
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poly.forEach(function(pi) {
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laserOut(pi, group);
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});
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} else {
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let pathOpt = zcolor ? {extrude: slice.z, rate: slice.z} : {extrude: 1};
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if (simple) pathOpt.simple = true;
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if (poly.open) pathOpt.open = true;
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print.polyPrintPath(poly, start, group, pathOpt);
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}
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}
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let offset = slice.offset;
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let inner = offset.map(poly => poly.inner || []).flat();
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laserOut(offset, group);
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laserOut(inner, group);
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if (!grouped) {
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groups.push(group);
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group = [];
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group.thick = slice.thick;
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}
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if (grouped) {
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groups.push(group);
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}
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};
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/**
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* DRIVER PRINT CONTRACT
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*
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* @param {Object} print state object
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* @param {Function} update incremental callback
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*/
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function prepare(widgets, settings, update) {
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let device = settings.device,
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process = settings.process,
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print = self.worker.print = KIRI.newPrint(settings, widgets),
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knifeOn = process.knifeOn,
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knifeDepth = process.outputKnifeDepth,
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knifePasses = process.outputKnifePasses,
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knifeTipOff = process.outputKnifeTip,
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output = print.output = [],
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totalSlices = 0,
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slices = 0;
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function arc(center, s1, s2, out) {
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let a1 = s1.angle;
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let a2 = s2.angle;
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let diff = s1.angleDiff(s2,true);
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let step = 5;
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let ticks = Math.abs(Math.floor(diff / step));
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let dir = Math.sign(diff);
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let off = (diff % step) / 2;
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if (off == 0) {
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ticks++;
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} else {
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out.push( center.projectOnSlope(s1, knifeTipOff) );
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}
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while (ticks-- > 0) {
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out.push( center.projectOnSlope(BASE.newSlopeFromAngle(a1 + off), knifeTipOff) );
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a1 += step * dir;
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}
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out.push( center.projectOnSlope(s2, knifeTipOff) );
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}
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// start to the "left" of the first point
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function addKnifeRadii(poly) {
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poly.setClockwise();
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let oldpts = poly.points.slice();
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// find leftpoint and make that the first point
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let start = oldpts[0];
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let startI = 0;
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for (let i=1; i<oldpts.length; i++) {
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let pt = oldpts[i];
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if (pt.x < start.x || pt.y > start.y) {
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start = pt;
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startI = i;
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}
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}
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if (startI > 0) {
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oldpts = oldpts.slice(startI,oldpts.length).appendAll(oldpts.slice(0,startI));
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}
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let lastpt = oldpts[0].clone().move({x:-knifeTipOff,y:0,z:0});
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let lastsl = lastpt.slopeTo(oldpts[0]).toUnit();
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let newpts = [ lastpt, lastpt = oldpts[0] ];
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let tmp;
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for (let i=1; i<oldpts.length + 1; i++) {
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let nextpt = oldpts[i % oldpts.length];
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let nextsl = lastpt.slopeTo(nextpt).toUnit();
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if (lastsl.angleDiff(nextsl) >= 10) {
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if (lastpt.distTo2D(nextpt) >= knifeTipOff) {
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arc(lastpt, lastsl, nextsl, newpts);
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} else {
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// todo handle short segments
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// newpts.push(lastpt.projectOnSlope(lastsl, knifeTipOff) );
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// newpts.push( lastpt.projectOnSlope(nextsl, knifeTipOff) );
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}
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}
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newpts.push(nextpt);
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lastsl = nextsl;
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lastpt = nextpt;
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}
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newpts.push( tmp = lastpt.projectOnSlope(lastsl, knifeTipOff) );
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newpts.push( tmp.clone().move({x:knifeTipOff, y:0, z: 0}) );
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poly.open = true;
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poly.points = newpts;
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poly.length = newpts.length;
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}
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// find max layers (for updates)
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widgets.forEach(function(widget) {
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totalSlices += widget.slices.length;
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});
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// emit objects from each slice into output array
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widgets.forEach(function(widget) {
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// slice stack merging
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if (process.outputLaserMerged) {
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let merged = [];
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widget.slices.forEach(function(slice) {
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let polys = [];
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slice.offset.clone(true).forEach(p => p.flattenTo(polys));
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polys.forEach(p => {
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let match = false;
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for (let i=0; i<merged.length; i++) {
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let mp = merged[i];
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if (p.isEquivalent(mp)) {
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// increase weight
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match = true;
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mp.depth++;
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}
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}
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if (!match) {
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p.depth = 1;
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merged.push(p);
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}
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});
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update((slices++ / totalSlices) * 0.5, "prepare");
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});
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let start = newPoint(0,0,0);
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let gather = [];
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merged.forEach(poly => {
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print.polyPrintPath(poly, start, gather, {
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extrude: poly.depth,
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rate: poly.depth * 10
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});
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});
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output.push(gather);
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} else {
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if (knifeOn) {
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widget.slices.forEach(slice => {
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slice.offset.forEach(poly => {
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addKnifeRadii(poly);
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if (poly.inner) poly.inner.forEach(ip => {
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addKnifeRadii(ip);
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});
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});
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});
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}
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widget.slices.forEach(function(slice) {
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sliceEmitObjects(print, slice, output, knifeOn);
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update((slices++ / totalSlices) * 0.5, "prepare");
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});
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}
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});
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// compute tile width / height
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output.forEach(function(layerout) {
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let min = {w:Infinity, h:Infinity}, max = {w:-Infinity, h:-Infinity}, p;
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layerout.forEach(function(out) {
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p = out.point;
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out.point = p.clone(); // b/c first/last point are often shared
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min.w = Math.min(min.w, p.x);
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max.w = Math.max(max.w, p.x);
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min.h = Math.min(min.h, p.y);
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max.h = Math.max(max.h, p.y);
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});
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layerout.w = max.w - min.w;
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layerout.h = max.h - min.h;
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// shift objects to top/left of w/h bounds
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layerout.forEach(function(out) {
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p = out.point;
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p.x -= min.w;
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p.y -= min.h;
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});
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});
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// do object layout packing
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let i, m, e,
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MOTO = self.moto,
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dw = device.bedWidth / 2,
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dh = device.bedDepth / 2,
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sort = !process.outputLaserLayer,
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// sort objects by size when not using laser layer ordering
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c = sort ? output.sort(MOTO.Sort) : output,
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p = new MOTO.Pack(dw, dh, process.outputTileSpacing).fit(c, !sort);
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// test different ratios until packed
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while (!p.packed) {
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dw *= 1.1;
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dh *= 1.1;
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p = new MOTO.Pack(dw, dh, process.outputTileSpacing).fit(c ,!sort);
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}
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for (i = 0; i < c.length; i++) {
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m = c[i];
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m.fit.x += m.w + p.pad;
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m.fit.y += m.h + p.pad;
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m.forEach(function(o, i) {
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// because first point emitted twice (begin/end)
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e = o.point;
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e.x += p.max.w / 2 - m.fit.x;
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e.y += p.max.h / 2 - m.fit.y;
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// e.z = 0;
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});
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}
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return print.render = FDM.prepareRender(output, (progress, layer) => {
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update(0.5 + progress * 0.5, "render", layer);
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}, { thin: true, z: 0, action: "cut", moves: process.knifeOn });
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};
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function exportLaser(print, online, ondone) {
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ondone(print.output);
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}
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/**
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*
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*/
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function exportElements(settings, output, onpre, onpoly, onpost, onpoint, onlayer) {
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let process = settings.process,
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zcolor = process.outputLaserZColor,
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last,
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point,
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poly = [],
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min = {x:0, y:0},
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max = {x:0, y:0};
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output.forEach(function(layer) {
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layer.forEach(function(out) {
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point = out.point;
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if (process.outputInvertX) point.x = -point.x;
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if (process.outputInvertY) point.y = -point.y;
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min.x = Math.min(min.x, point.x);
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max.x = Math.max(max.x, point.x);
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min.y = Math.min(min.y, point.y);
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max.y = Math.max(max.y, point.y);
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});
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});
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if (!process.outputOriginCenter) {
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// normalize against origin lower left
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output.forEach(function(layer) {
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layer.forEach(function(out) {
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point = out.point;
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point.x -= min.x;
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point.y -= min.y;
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});
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});
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max.x = max.x - min.x;
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max.y = max.y - min.y;
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min.x = 0;
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min.y = 0;
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} else {
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// normalize against center of build area
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let w = settings.device.bedWidth;
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let h = settings.device.bedDepth;
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output.forEach(function(layer) {
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layer.forEach(function(out) {
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point = out.point;
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point.x += w/2;
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point.y += h/2;
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});
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});
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max.x = w;
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max.y = h;
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min.x = 0;
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min.y = 0;
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}
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onpre(min, max, process.outputLaserPower, process.outputLaserSpeed);
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output.forEach(function(layer, index) {
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let thick = 0;
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let color = 0;
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layer.forEach(function(out, li) {
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thick = out.thick;
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point = out.point;
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if (onlayer) {
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onlayer(index, point.z, out.thick, output.length);
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}
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if (out.emit) {
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color = out.emit;
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if (last && poly.length === 0) {
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poly.push(onpoint(last));
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}
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poly.push(onpoint(point));
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} else if (poly.length > 0) {
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onpoly(poly, color, thick);
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poly = [];
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}
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last = point;
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});
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if (poly.length > 0) {
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onpoly(poly, color, thick);
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poly = [];
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}
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});
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onpost();
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};
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/**
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*
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*/
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function exportGCode(settings, data) {
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let lines = [], dx = 0, dy = 0, z = 0, feedrate;
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let dev = settings.device;
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let proc = settings.process;
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let space = dev.gcodeSpace ? ' ' : '';
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let power = 255;
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let laser_on = dev.gcodeLaserOn || [];
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let laser_off = dev.gcodeLaserOff || [];
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let knifeOn = proc.knifeOn;
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let knifeDepth = proc.outputKnifeDepth;
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let passes = knifeOn ? proc.outputKnifePasses : 1;
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exportElements(
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settings,
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data,
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function(min, max, power, speed) {
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let width = (max.x - min.x),
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height = (max.y - min.y);
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dx = min.x;
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dy = min.y;
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feedrate = `${space}F${speed}`;
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power = (256 * (power / 100)).toFixed(3);
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(dev.gcodePre || []).forEach(line => {
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lines.push(line);
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});
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},
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function(poly, color, thick) {
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if (knifeOn) {
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lines.push(`; start new poly id=${poly.id} len=${poly.length}`);
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}
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for (let i=1; i<passes + 1; i++) {
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poly.forEach(function(point, index) {
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if (index === 0) {
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if (knifeOn) {
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// lift
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lines.appendAll(['; drag-knife lift', `G0${space}Z5`]);
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}
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lines.push(`G0${space}${point}`);
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if (knifeOn) {
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// drop
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lines.appendAll(['; drag-knife down', `G0${space}Z${-i * knifeDepth}`]);
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}
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} else if (index === 1) {
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laser_on.forEach(line => {
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line = line.replace('{power}', power);
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line = line.replace('{color}', color);
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line = line.replace('{thick}', thick);
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line = line.replace('{z}', z);
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lines.push(line);
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});
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lines.push(`G1${space}${point}${feedrate}`);
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} else {
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lines.push(`G1${space}${point}`);
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}
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});
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laser_off.forEach(line => {
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lines.push(line);
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});
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}
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if (knifeOn) {
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lines.appendAll([`G0${space}Z5`]);
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}
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},
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function() {
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(dev.gcodePost || []).forEach(line => {
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lines.push(line);
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});
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},
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function(point) {
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z = point.z;
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return `X${(point.x - dx).toFixed(3)}${space}Y${(point.y - dy).toFixed(3)}`;
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},
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function(layer, z, thick, layers) {
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// ununsed
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}
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);
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return lines.join('\n');
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};
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/**
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*
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*/
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function exportSVG(settings, data, cut_color) {
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let zcolor = settings.process.outputLaserZColor ? 1 : 0;
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let lines = [], dx = 0, dy = 0, my, z = 0;
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let colors = [
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"black",
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"purple",
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"blue",
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"red",
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"orange",
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"yellow",
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"green",
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"brown",
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"gray"
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];
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exportElements(
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settings,
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data,
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function(min, max) {
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let width = (max.x - min.x),
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height = (max.y - min.y);
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dx = min.x;
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dy = min.y;
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my = max.y;
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lines.push('<?xml version="1.0" standalone="no"?>');
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lines.push('<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">');
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lines.push(`<svg width="${width}mm" height="${height}mm" viewBox="0 0 ${width} ${height}" xmlns="http://www.w3.org/2000/svg" version="1.1">`);
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},
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function(poly, color, thick) {
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let cout = zcolor || colors[((color-1) % colors.length)];
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let def = ["polyline"];
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if (z !== undefined) def.push(`z="${z}"`);
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|
if (thick !== undefined) def.push(`h="${thick}"`);
|
|
lines.push(`<${def.join(' ')} points="${poly.join(' ')}" fill="none" stroke="${cout}" stroke-width="0.1mm" />`);
|
|
},
|
|
function() {
|
|
lines.push("</svg>");
|
|
},
|
|
function(point) {
|
|
z = point.z;
|
|
return UTIL.round(point.x - dx, 3) + "," + UTIL.round(my - point.y - dy, 3);
|
|
},
|
|
function(layer, z, thick, layers) {
|
|
if (zcolor) {
|
|
zcolor = Math.round(((layer + 1) / layers) * 0xffffff).toString(16);
|
|
zcolor = `#${zcolor.padStart(6,0)}`;
|
|
}
|
|
}
|
|
);
|
|
|
|
return lines.join('\n');
|
|
};
|
|
|
|
/**
|
|
*
|
|
*/
|
|
function exportDXF(settings, data) {
|
|
let lines = [];
|
|
|
|
exportElements(
|
|
settings,
|
|
data,
|
|
function(min, max) {
|
|
lines.appendAll([
|
|
' 0',
|
|
'SECTION',
|
|
' 2',
|
|
'HEADER',
|
|
' 9',
|
|
'$ACADVER',
|
|
'1',
|
|
'AC1014',
|
|
' 0',
|
|
'ENDSEC',
|
|
' 0',
|
|
'SECTION',
|
|
' 2',
|
|
'ENTITIES',
|
|
]);
|
|
},
|
|
function(poly) {
|
|
lines.appendAll([
|
|
' 0',
|
|
'LWPOLYLINE',
|
|
'100', // subgroup required
|
|
'AcDbPolyline',
|
|
' 90', // poly vertices
|
|
poly.length,
|
|
' 70', // open
|
|
'0',
|
|
' 43', // constant width line
|
|
'0.0'
|
|
]);
|
|
|
|
poly.forEach(function(point) {
|
|
lines.appendAll([
|
|
' 10',
|
|
point.x,
|
|
' 20',
|
|
point.y
|
|
]);
|
|
});
|
|
|
|
lines.appendAll([
|
|
' 0',
|
|
'SEQEND',
|
|
]);
|
|
},
|
|
function() {
|
|
lines.appendAll([
|
|
' 0',
|
|
'ENDSEC',
|
|
' 0',
|
|
'EOF',
|
|
]);
|
|
},
|
|
function(point) {
|
|
return {x:point.x,y:point.y};
|
|
}
|
|
);
|
|
|
|
return lines.join('\n');
|
|
};
|
|
|
|
})();
|