520 lines
19 KiB
JavaScript
520 lines
19 KiB
JavaScript
/** Copyright 2014-2017 Stewart Allen -- All Rights Reserved */
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"use strict";
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var gs_kiri_fdm = exports;
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(function() {
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if (!self.kiri) self.kiri = { };
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if (!self.kiri.driver) self.kiri.driver = { };
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if (self.kiri.driver.FDM) return;
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var KIRI = self.kiri,
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BASE = self.base,
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DBUG = BASE.debug,
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UTIL = BASE.util,
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CONF = BASE.config,
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FDM = KIRI.driver.FDM = { },
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POLY = BASE.polygons,
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SLICER = KIRI.slicer,
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newPoint = BASE.newPoint,
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time = UTIL.time;
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/**
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* DRIVER SLICE CONTRACT
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*
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* Given a widget and settings object, call functions necessary to produce
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* slices and then the computations using those slices. This function is
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* designed to run client or server-side and provides all output via
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* callback functions.
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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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FDM.slice = function(settings, widget, onupdate, ondone) {
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var spro = settings.process,
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spri = settings.device,
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sout = settings.process,
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update_start = time(),
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minSolid = spro.sliceSolidMinArea,
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solidLayers = spro.sliceSolidLayers,
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doSolidLayers = solidLayers && !spro.sliceVase,
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firstOffset = spri.nozzleSize / 2,
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shellOffset = spri.nozzleSize * spro.sliceShellSpacing,
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fillOffset = shellOffset * settings.synth.fillOffsetMult,
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fillSpacing = spri.nozzleSize * spro.sliceFillSpacing,
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sliceFillAngle = spro.sliceFillAngle,
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view = widget.mesh && widget.mesh.newGroup ? widget.mesh.newGroup() : null;
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if (spro.sliceHeight < 0.01) {
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return ondone("invalid slice height");
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}
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if (spro.firstSliceHeight < spro.sliceHeight) {
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DBUG.log("invalid first layer height < slice height");
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DBUG.log("reverting to slice height");
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spro.firstSliceHeight = spro.sliceHeight;
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}
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SLICER.sliceWidget(widget, {
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height: spro.sliceHeight,
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view:view,
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firstHeight: sout.firstSliceHeight
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}, onSliceDone, onSliceUpdate);
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function onSliceUpdate(update) {
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onupdate(0.0 + update * 0.5);
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}
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function onSliceDone(slices) {
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widget.slices = slices;
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if (!slices) return;
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// calculate % complete and call onupdate()
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function doupdate(index, from, to, msg) {
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onupdate(0.5 + (from + ((index/slices.length) * (to-from))) * 0.5, msg);
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}
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// for each slice, performe a function and call doupdate()
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function forSlices(from, to, fn, msg) {
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slices.forEach(function(slice) {
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fn(slice);
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doupdate(slice.index, from, to, msg)
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});
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}
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// do not hint polygin fill longer than a max span length
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CONF.hint_len_max = UTIL.sqr(spro.sliceBridgeMax);
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// reset (if necessary) for solids and support projections
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slices.forEach(function(slice) {
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slice.invalidateFill();
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slice.invalidateSolids();
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slice.invalidateSupports();
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});
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var supportEnabled = spro.sliceSupportEnable && spro.sliceSupportDensity > 0.0,
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supportMinArea = spro.sliceSupportArea;
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// create shells and diff inner fillable areas
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forSlices(0.0, 0.2, function(slice) {
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var solid = (
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slice.index < spro.sliceBottomLayers ||
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slice.index > slices.length - spro.sliceTopLayers-1 ||
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spro.sliceFillSparse > 0.95
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) && !spro.sliceVase;
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slice.doShells(spro.sliceShells, firstOffset, shellOffset, fillOffset, spro.sliceVase);
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if (solid) slice.doSolidLayerFill(fillSpacing, sliceFillAngle);
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sliceFillAngle += 90.0;
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}, "offsets");
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// calculations only relevant when solid layers are used
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if (doSolidLayers) {
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forSlices(0.2, 0.34, function(slice) {
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slice.doDiff(minSolid);
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}, "diff");
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forSlices(0.34, 0.35, function(slice) {
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slice.projectFlats(solidLayers);
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slice.projectBridges(solidLayers);
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}, "solids");
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forSlices(0.35, 0.5, function(slice) {
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slice.doSolidsFill(fillSpacing, sliceFillAngle, minSolid);
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sliceFillAngle += 90.0;
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}, "solids");
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}
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// calculations only relevant when supports are enabled
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if (supportEnabled) {
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forSlices(0.5, 0.7, function(slice) {
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slice.doSupport(spro.sliceSupportOffset, spro.sliceSupportSpan, spro.sliceSupportExtra, supportMinArea, spro.sliceSupportSize, spro.sliceSupportOffset);
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}, "support");
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forSlices(0.7, 0.8, function(slice) {
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slice.doSupportFill(spri.nozzleSize, spro.sliceSupportDensity, supportMinArea);
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}, "support");
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}
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// sparse layers only present when non-vase mose and sparse % > 0
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if (!spro.sliceVase && spro.sliceFillSparse > 0.0) {
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forSlices(0.8, 1.0, function(slice) {
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slice.doSparseLayerFill(fillSpacing, spro.sliceFillSparse, widget.getBoundingBox());
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}, "infill");
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}
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// report slicing complete
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ondone();
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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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FDM.printSetup = function(print, update) {
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var widgets = print.widgets,
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settings = print.settings,
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device = settings.device,
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process = settings.process,
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mode = settings.mode,
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output = print.output,
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printPoint = newPoint(0,0,0),
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maxLayers = 0,
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layer = 0,
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mesh,
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meshIndex,
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lastIndex,
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layerout,
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closest,
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mindist,
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minidx,
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find,
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found,
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mslices,
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slices,
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sliceEntry;
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// find max layers (for updates)
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widgets.forEach(function(widget) {
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maxLayers = Math.max(maxLayers, widget.slices.length);
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});
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// for each layer until no layers are found
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for (;;) {
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slices = [];
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layerout = [];
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// create list of mesh slice arrays with their platform offsets
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for (meshIndex = 0; meshIndex < widgets.length; meshIndex++) {
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mesh = widgets[meshIndex].mesh;
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if (!mesh.widget) continue;
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mslices = mesh.widget.slices;
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if (mslices && mslices[layer]) {
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slices.push({slice:mslices[layer], offset:mesh.position});
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}
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}
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if (slices.length === 0) break;
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// create brim, if specificed in FDM mode (code shared by laser)
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if (layer === 0 && process.outputBrimCount) {
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var brims = [],
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polys = [],
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preout = [],
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startPoint = printPoint;
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widgets.forEach(function(widget) {
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var tops = [];
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widget.slices[0].tops.forEach(function(top) {
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tops.push(top.poly.clone());
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});
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POLY.nest(tops).forEach(function(poly) {
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poly.offset(-process.outputBrimOffset+device.nozzleSize/2).forEach(function(brim) {
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brim.move(widget.mesh.position);
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brims.push(brim);
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});
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});
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});
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POLY.union(brims).forEach(function(brim) {
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POLY.trace2count(brim, polys, -device.nozzleSize, process.outputBrimCount, 0);
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});
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printPoint = print.poly2polyEmit(polys, printPoint, function(poly, index, count, startPoint) {
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return print.polyPrintPath(poly, startPoint, preout, {
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rate: process.firstLayerRate,
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onfirst: function(point) {
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if (preout.length && point.distTo2D(startPoint) > 2) {
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// retract between brim r
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preout.last().retract = true;
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}
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}
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});
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});
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print.addPrintPoints(preout, layerout, null);
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preout.last().retract = true;
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}
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// iterate over layer slices, find closest widget, print, eliminate
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for (;;) {
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found = 0;
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closest = null;
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mindist = Infinity;
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for (meshIndex = 0; meshIndex < slices.length; meshIndex++) {
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sliceEntry = slices[meshIndex];
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if (!sliceEntry) continue;
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find = sliceEntry.slice.findClosestPointTo(printPoint.sub(sliceEntry.offset));
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if (find && (!closest || find.distance < mindist)) {
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closest = sliceEntry;
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mindist = find.distance;
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minidx = meshIndex;
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}
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found++;
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}
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if (!closest) break;
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slices[minidx] = null;
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// output seek to start point between mesh slices if previous data
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printPoint = print.slicePrintPath(
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closest.slice,
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printPoint.sub(closest.offset),
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closest.offset,
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layerout,
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// wipe after last layer or between widgets
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(found > 1 && slices.length > 1) || (found === 1 && layer == maxLayers-1)
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);
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lastIndex = minidx;
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}
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if (layerout.length) output.append(layerout);
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layer++;
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update(layer / maxLayers);
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}
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};
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/**
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* @returns {Array} gcode lines
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*/
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FDM.printExport = function(print, online) {
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var layers = print.output,
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settings = print.settings,
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device = settings.device,
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process = settings.process,
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fan_power = device.gcodeFan,
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trackProgress = device.gcodeTrack,
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time = 0,
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layer = 0,
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output = [],
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outputLength = 0,
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lastProgress = 0,
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decimals = 4,
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progress = 0,
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distance = 0,
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emitted = 0,
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retracted = 0,
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pos = {x:0, y:0, z:0, f:0},
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last = null,
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zinc = process.sliceHeight,
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zpos = process.firstSliceHeight,
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offset = process.outputOriginCenter ? null : {
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x: device.bedWidth/2,
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y: device.bedDepth/2
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},
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consts = {
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temp: process.outputTemp,
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temp_bed: process.outputBedTemp,
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bed_temp: process.outputBedTemp,
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fan_speed: process.outputFanMax,
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speed: process.outputFanMax,
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top: offset ? device.bedDepth : device.bedDepth/2,
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left: offset ? 0 : -device.bedWidth/2,
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right: offset ? device.bedWidth : device.bedWidth/2,
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bottom: offset ? 0 : -device.bedDepth/2,
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z_max: device.maxHeight
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},
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seekMMM = process.outputSeekrate * 60,
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retDist = process.outputRetractDist,
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retSpeed = process.outputRetractSpeed * 60,
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// ratio of nozzle area to filament area times
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// ratio of slice height to filament max noodle height
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emitPerMM = print.extrudePerMM(device.nozzleSize, device.filamentSize, process.sliceHeight),
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emitPerMMLayer1 = print.extrudePerMM(device.nozzleSize, device.filamentSize, process.firstSliceHeight),
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constReplace = print.constReplace,
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pidx, path, out, speedMMM, emitMM, lastp, laste, dist,
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appendAll = function(arr) {
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arr.forEach(function(line) { append(line) });
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},
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append,
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lines = 0,
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bytes = 0;
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if (online) {
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append = function(line) {
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if (line) {
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lines++;
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bytes += line.length;
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output.append(line);
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}
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if (!line || output.length > 1000) {
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online(output.join("\n"));
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output = [];
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}
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};
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} else {
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append = function(line) {
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if (!line) return;
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output.append(line);
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lines++;
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bytes += line.length;
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}
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}
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append("; Generated by KIRI:MOTO");
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append("; "+new Date().toString());
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append(constReplace("; Bed left:{left} right:{right} top:{top} bottom:{bottom}", consts));
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append("; --- process ---");
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for (var pk in process) {
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append("; " + pk + " = " + process[pk]);
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}
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append("; --- startup ---");
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for (var i=0; i<device.gcodePre.length; i++) {
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var line = device.gcodePre[i];
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if (device.extrudeAbs && line.indexOf('E') > 0) {
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line.split(";")[0].split(' ').forEach(function (tok) {
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// use max E position from gcode-preamble
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if (tok[0] == 'E') {
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outputLength = Math.max(outputLength, parseFloat(tok.substring(1)) || 0);
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}
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});
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}
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append(constReplace(line, consts));
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}
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function dwell(ms) {
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append("G4 P" + ms);
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}
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function moveTo(newpos, rate, comment) {
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if (comment) {
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append(" ; " + comment);
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}
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var o = ['G1'];
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if (typeof newpos.x === 'number') {
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pos.x = UTIL.round(newpos.x,decimals);
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o.append(" X").append(pos.x);
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}
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if (typeof newpos.y === 'number') {
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pos.y = UTIL.round(newpos.y,decimals);
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o.append(" Y").append(pos.y);
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}
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if (typeof newpos.z === 'number') {
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pos.z = UTIL.round(newpos.z,decimals);
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o.append(" Z").append(pos.z);
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}
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if (typeof newpos.e === 'number') {
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outputLength += newpos.e;
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if (device.extrudeAbs) {
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// for cumulative (absolute) extruder positions
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o.append(" E").append(UTIL.round(outputLength, decimals));
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} else {
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o.append(" E").append(UTIL.round(newpos.e, decimals));
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}
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}
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if (rate && rate != pos.f) {
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o.append(" F").append(Math.round(rate));
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pos.f = rate
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}
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var line = o.join('');
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if (last == line) {
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// console.log({dup:line});
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return;
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}
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last = line;
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append(line);
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}
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// calc total distance traveled by head as proxy for progress
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var allout = [],
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totaldistance = 0;
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layers.forEach(function(outs) { allout.appendAll(outs) });
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allout.forEachPair(function (o1, o2) {
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totaldistance += o1.point.distTo2D(o2.point);
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}, 1);
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while (layer < layers.length) {
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path = layers[layer];
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append("; --- layer "+layer+" ---");
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// second layer fan on
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if (layer === 1 && fan_power) {
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append(constReplace(fan_power,consts));
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}
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// move Z to layer height
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moveTo({z:zpos}, seekMMM);
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zpos += zinc;
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// iterate through layer outputs
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for (pidx=0; pidx<path.length; pidx++) {
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out = path[pidx];
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speedMMM = (out.speed || process.outputFeedrate) * 60;
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// if no point in output, it's a dwell command
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if (!out.point) {
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dwell(out.speed);
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continue;
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}
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var x = out.point.x,
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y = out.point.y;
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// adjust for inversions and offsets
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if (process.outputInvertX) x = -x;
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if (process.outputInvertY) y = -y;
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if (offset) {
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x += offset.x;
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y += offset.y;
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}
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dist = lastp ? lastp.distTo2D(out.point) : 0;
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if (out.emit && retracted) {
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moveTo({e:retracted}, retSpeed, "engage " + retracted);
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retracted = 0;
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time += (retDist / retSpeed) * 60 * 2; // retraction time
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}
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if (lastp && out.emit) {
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emitMM = (layer === 0 ? emitPerMMLayer1 : emitPerMM) * out.emit * dist;
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moveTo({x:x, y:y, e:emitMM}, speedMMM);
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emitted += emitMM;
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} else {
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moveTo({x:x, y:y}, speedMMM);
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}
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if (!retracted && out.retract) {
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retracted = retDist;
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moveTo({e:-retracted}, retSpeed, "retract " + retDist);
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time += (retDist / retSpeed) * 60 * 2; // retraction time
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}
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// update time and distance
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time += (dist / speedMMM) * 60;
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distance += dist;
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progress = Math.round((distance / totaldistance) * 100);
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// emit tracked progress
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if (trackProgress && progress != lastProgress) {
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append(constReplace(trackProgress, {progress:progress}));
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lastProgress = progress;
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}
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lastp = out.point;
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laste = out.emit;
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}
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layer++;
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}
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append("; --- shutdown ---");
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for (var i=0; i<device.gcodePost.length; i++) {
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append(constReplace(device.gcodePost[i], consts));
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}
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append("; --- filament used: "+UTIL.round(emitted,decimals)+"mm ---");
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// force emit of buffer
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append();
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print.distance = emitted;
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print.lines = lines;
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print.bytes = bytes + lines - 1;
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print.time = time;
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return online ? null : output.join("\n");
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};
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})();
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