public void QueueAirGappedBottomLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportNormalConfig)
{
// normal support
Polygons currentAirGappedBottoms = airGappedBottomOutlines[layerIndex];
currentAirGappedBottoms = currentAirGappedBottoms.Offset(-config.ExtrusionWidth_um / 2);
List <Polygons> supportIslands = currentAirGappedBottoms.ProcessIntoSeparatIslands();
foreach (Polygons islandOutline in supportIslands)
{
Polygons islandInfillLines = new Polygons();
// render a grid of support
if (config.GenerateSupportPerimeter)
{
Polygons outlines = Clipper.CleanPolygons(islandOutline, config.ExtrusionWidth_um / 4);
gcodeLayer.QueuePolygonsByOptimizer(outlines, supportNormalConfig);
}
Polygons infillOutline = islandOutline.Offset(-config.ExtrusionWidth_um / 2);
switch (config.SupportType)
{
case ConfigConstants.SUPPORT_TYPE.GRID:
Infill.GenerateGridInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
case ConfigConstants.SUPPORT_TYPE.LINES:
Infill.GenerateLineInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
}
gcodeLayer.QueuePolygonsByOptimizer(islandInfillLines, supportNormalConfig);
}
}
public bool QueueNormalSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportNormalConfig)
{
// normal support
Polygons currentSupportOutlines = supportOutlines[layerIndex];
currentSupportOutlines = currentSupportOutlines.Offset(-supportNormalConfig.lineWidth_um / 2);
List <Polygons> supportIslands = currentSupportOutlines.ProcessIntoSeparatIslands();
bool outputPaths = false;
foreach (Polygons islandOutline in supportIslands)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
Polygons islandInfillLines = new Polygons();
// render a grid of support
if (config.GenerateSupportPerimeter || layerIndex == 0)
{
Polygons outlines = Clipper.CleanPolygons(islandOutline, config.ExtrusionWidth_um / 4);
if (gcodeLayer.QueuePolygonsByOptimizer(outlines, supportNormalConfig))
{
outputPaths = true;
}
}
Polygons infillOutline = islandOutline.Offset(-supportNormalConfig.lineWidth_um / 2);
if (layerIndex == 0)
{
// on the first layer print this as solid
Infill.GenerateLineInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.ExtrusionWidth_um);
}
else
{
switch (config.SupportType)
{
case ConfigConstants.SUPPORT_TYPE.GRID:
Infill.GenerateGridInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
case ConfigConstants.SUPPORT_TYPE.LINES:
Infill.GenerateLineInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
}
}
if (gcodeLayer.QueuePolygonsByOptimizer(islandInfillLines, supportNormalConfig))
{
outputPaths |= true;
}
}
return(outputPaths);
}
public void QueueInterfaceSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportInterfaceConfig)
{
// interface
Polygons currentInterfaceOutlines = interfaceLayers[layerIndex].Offset(-config.ExtrusionWidth_um / 2);
if (currentInterfaceOutlines.Count > 0)
{
Polygons supportLines = new Polygons();
Infill.GenerateLineInfill(config, currentInterfaceOutlines, supportLines, config.InfillStartingAngle + 90, config.ExtrusionWidth_um);
gcodeLayer.QueuePolygonsByOptimizer(supportLines, supportInterfaceConfig);
}
}
public bool QueueInterfaceSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportInterfaceConfig)
{
// interface
bool outputPaths = false;
Polygons currentInterfaceOutlines2 = interfaceLayers[layerIndex].Offset(-config.ExtrusionWidth_um / 2);
if (currentInterfaceOutlines2.Count > 0)
{
List <Polygons> interfaceIslands = currentInterfaceOutlines2.ProcessIntoSeparatIslands();
foreach (Polygons interfaceOutline in interfaceIslands)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
// make a border if layer 0
if (layerIndex == 0)
{
Polygons infillOutline = interfaceOutline.Offset(-supportInterfaceConfig.lineWidth_um / 2);
Polygons outlines = Clipper.CleanPolygons(infillOutline, config.ExtrusionWidth_um / 4);
if (gcodeLayer.QueuePolygonsByOptimizer(outlines, supportInterfaceConfig))
{
outputPaths = true;
}
}
Polygons supportLines = new Polygons();
Infill.GenerateLineInfill(config, interfaceOutline, supportLines, config.InfillStartingAngle + 90, config.ExtrusionWidth_um);
if (gcodeLayer.QueuePolygonsByOptimizer(supportLines, supportInterfaceConfig))
{
outputPaths = true;
}
}
}
return(outputPaths);
}
public void QueueInterfaceSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportInterfaceConfig)
{
// interface
Polygons currentInterfaceOutlines2 = interfaceLayers[layerIndex].Offset(-config.ExtrusionWidth_um / 2);
if (currentInterfaceOutlines2.Count > 0)
{
List <Polygons> interfaceIslands = currentInterfaceOutlines2.ProcessIntoSeparatIslands();
foreach (Polygons interfaceOutline in interfaceIslands)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
Polygons supportLines = new Polygons();
Infill.GenerateLineInfill(config, interfaceOutline, supportLines, config.InfillStartingAngle + 90, config.ExtrusionWidth_um);
gcodeLayer.QueuePolygonsByOptimizer(supportLines, supportInterfaceConfig);
}
}
}
public void WriteRaftGCodeIfRequired(ConfigSettings config, GCodeExport gcode)
{
LayerDataStorage storage = this;
if (config.ShouldGenerateRaft())
{
GCodePathConfig raftBaseConfig = new GCodePathConfig(config.firstLayerSpeed, config.raftBaseExtrusionWidth_um, "SUPPORT");
GCodePathConfig raftMiddleConfig = new GCodePathConfig(config.raftPrintSpeed, config.raftInterfaceExtrusionWidth_um, "SUPPORT");
GCodePathConfig raftSurfaceConfig = new GCodePathConfig((config.raftSurfacePrintSpeed > 0) ? config.raftSurfacePrintSpeed : config.raftPrintSpeed, config.raftSurfaceExtrusionWidth_um, "SUPPORT");
// create the raft base
{
gcode.WriteComment("LAYER:-3");
gcode.WriteComment("RAFT BASE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.travelSpeed, config.minimumTravelToCauseRetraction_um);
if (config.raftExtruder >= 0)
{
// if we have a specified raft extruder use it
gcodeLayer.SetExtruder(config.raftExtruder);
}
else if (config.supportExtruder >= 0)
{
// else preserve the old behavior of using the support extruder if set.
gcodeLayer.SetExtruder(config.supportExtruder);
}
gcode.setZ(config.raftBaseThickness_um);
gcode.SetExtrusion(config.raftBaseThickness_um, config.filamentDiameter_um, config.extrusionMultiplier);
Polygons raftLines = new Polygons();
Infill.GenerateLinePaths(storage.raftOutline, ref raftLines, config.raftBaseLineSpacing_um, config.infillExtendIntoPerimeter_um, 0);
// write the skirt around the raft
gcodeLayer.QueuePolygonsByOptimizer(storage.skirt, raftBaseConfig);
// write the outline of the raft
gcodeLayer.QueuePolygonsByOptimizer(storage.raftOutline, raftBaseConfig);
// write the inside of the raft base
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftBaseConfig);
gcodeLayer.WriteQueuedGCode(config.raftBaseThickness_um);
}
if (config.raftFanSpeedPercent > 0)
{
gcode.WriteFanCommand(config.raftFanSpeedPercent);
}
// raft middle layers
{
gcode.WriteComment("LAYER:-2");
gcode.WriteComment("RAFT MIDDLE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.travelSpeed, config.minimumTravelToCauseRetraction_um);
gcode.setZ(config.raftBaseThickness_um + config.raftInterfaceThicknes_um);
gcode.SetExtrusion(config.raftInterfaceThicknes_um, config.filamentDiameter_um, config.extrusionMultiplier);
Polygons raftLines = new Polygons();
Infill.GenerateLinePaths(storage.raftOutline, ref raftLines, config.raftInterfaceLineSpacing_um, config.infillExtendIntoPerimeter_um, 45);
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftMiddleConfig);
gcodeLayer.WriteQueuedGCode(config.raftInterfaceThicknes_um);
}
for (int raftSurfaceIndex = 1; raftSurfaceIndex <= config.raftSurfaceLayers; raftSurfaceIndex++)
{
gcode.WriteComment("LAYER:-1");
gcode.WriteComment("RAFT SURFACE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.travelSpeed, config.minimumTravelToCauseRetraction_um);
gcode.setZ(config.raftBaseThickness_um + config.raftInterfaceThicknes_um + config.raftSurfaceThickness_um * raftSurfaceIndex);
gcode.SetExtrusion(config.raftSurfaceThickness_um, config.filamentDiameter_um, config.extrusionMultiplier);
Polygons raftLines = new Polygons();
if (raftSurfaceIndex == config.raftSurfaceLayers)
{
// make sure the top layer of the raft is 90 degrees offset to the first layer of the part so that it has minimum contact points.
Infill.GenerateLinePaths(storage.raftOutline, ref raftLines, config.raftSurfaceLineSpacing_um, config.infillExtendIntoPerimeter_um, config.infillStartingAngle + 90);
}
else
{
Infill.GenerateLinePaths(storage.raftOutline, ref raftLines, config.raftSurfaceLineSpacing_um, config.infillExtendIntoPerimeter_um, 90 * raftSurfaceIndex);
}
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftSurfaceConfig);
gcodeLayer.WriteQueuedGCode(config.raftInterfaceThicknes_um);
}
}
}
public void WriteRaftGCodeIfRequired(GCodeExport gcode, ConfigSettings config)
{
LayerDataStorage storage = this;
if (config.ShouldGenerateRaft())
{
GCodePathConfig raftBaseConfig = new GCodePathConfig("raftBaseConfig");
raftBaseConfig.SetData(config.FirstLayerSpeed, config.RaftBaseExtrusionWidth_um, "SUPPORT");
GCodePathConfig raftMiddleConfig = new GCodePathConfig("raftMiddleConfig");
raftMiddleConfig.SetData(config.RaftPrintSpeed, config.RaftInterfaceExtrusionWidth_um, "SUPPORT");
GCodePathConfig raftSurfaceConfig = new GCodePathConfig("raftMiddleConfig");
raftSurfaceConfig.SetData((config.RaftSurfacePrintSpeed > 0) ? config.RaftSurfacePrintSpeed : config.RaftPrintSpeed, config.RaftSurfaceExtrusionWidth_um, "SUPPORT");
// create the raft base
{
gcode.WriteComment("RAFT BASE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio);
if (config.RaftExtruder >= 0)
{
// if we have a specified raft extruder use it
gcodeLayer.SetExtruder(config.RaftExtruder);
}
else if (config.SupportExtruder >= 0)
{
// else preserve the old behavior of using the support extruder if set.
gcodeLayer.SetExtruder(config.SupportExtruder);
}
gcode.SetZ(config.RaftBaseThickness_um);
gcode.LayerChanged(-3);
gcode.SetExtrusion(config.RaftBaseThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier);
// write the skirt around the raft
gcodeLayer.QueuePolygonsByOptimizer(storage.skirt, raftBaseConfig);
List <Polygons> raftIslands = storage.raftOutline.ProcessIntoSeparatIslands();
foreach (var raftIsland in raftIslands)
{
// write the outline of the raft
gcodeLayer.QueuePolygonsByOptimizer(raftIsland, raftBaseConfig);
Polygons raftLines = new Polygons();
Infill.GenerateLinePaths(raftIsland.Offset(-config.RaftBaseExtrusionWidth_um), raftLines, config.RaftBaseLineSpacing_um, config.InfillExtendIntoPerimeter_um, 0);
// write the inside of the raft base
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftBaseConfig);
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
}
gcodeLayer.WriteQueuedGCode(config.RaftBaseThickness_um);
}
if (config.RaftFanSpeedPercent > 0)
{
gcode.WriteFanCommand(config.RaftFanSpeedPercent);
}
// raft middle layers
{
gcode.WriteComment("RAFT MIDDLE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio);
gcode.SetZ(config.RaftBaseThickness_um + config.RaftInterfaceThicknes_um);
gcode.LayerChanged(-2);
gcode.SetExtrusion(config.RaftInterfaceThicknes_um, config.FilamentDiameter_um, config.ExtrusionMultiplier);
Polygons raftLines = new Polygons();
Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftInterfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, 45);
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftMiddleConfig);
gcodeLayer.WriteQueuedGCode(config.RaftInterfaceThicknes_um);
}
for (int raftSurfaceIndex = 1; raftSurfaceIndex <= config.RaftSurfaceLayers; raftSurfaceIndex++)
{
gcode.WriteComment("RAFT SURFACE");
GCodePlanner gcodeLayer = new GCodePlanner(gcode, config.TravelSpeed, config.MinimumTravelToCauseRetraction_um, config.PerimeterStartEndOverlapRatio);
gcode.SetZ(config.RaftBaseThickness_um + config.RaftInterfaceThicknes_um + config.RaftSurfaceThickness_um * raftSurfaceIndex);
gcode.LayerChanged(-1);
gcode.SetExtrusion(config.RaftSurfaceThickness_um, config.FilamentDiameter_um, config.ExtrusionMultiplier);
Polygons raftLines = new Polygons();
if (raftSurfaceIndex == config.RaftSurfaceLayers)
{
// make sure the top layer of the raft is 90 degrees offset to the first layer of the part so that it has minimum contact points.
Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftSurfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, config.InfillStartingAngle + 90);
}
else
{
Infill.GenerateLinePaths(storage.raftOutline, raftLines, config.RaftSurfaceLineSpacing_um, config.InfillExtendIntoPerimeter_um, 90 * raftSurfaceIndex);
}
gcodeLayer.QueuePolygonsByOptimizer(raftLines, raftSurfaceConfig);
gcodeLayer.WriteQueuedGCode(config.RaftInterfaceThicknes_um);
}
}
}
private void QueuePolygonsConsideringSupport(int layerIndex, GCodePlanner gcodeLayer, Polygons polygonsToWrite, GCodePathConfig fillConfig, SupportWriteType supportWriteType)
{
if (config.generateSupport
&& layerIndex > 0
&& !config.continuousSpiralOuterPerimeter)
{
Polygons supportOutlines = slicingData.support.GetRequiredSupportAreas(layerIndex);
if (supportWriteType == SupportWriteType.UnsupportedAreas)
{
if (supportOutlines.Count > 0)
{
Polygons polygonsNotOnSupport;
// don't write the bottoms that are sitting on supported areas (they will be written at air gap distance later).
polygonsToWrite = PolygonsHelper.ConvertToLines(polygonsToWrite);
polygonsNotOnSupport = polygonsToWrite.CreateLineDifference(supportOutlines);
gcodeLayer.QueuePolygonsByOptimizer(polygonsNotOnSupport, fillConfig);
}
else
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
}
else
{
if (supportOutlines.Count > 0)
{
if (supportOutlines.Count > 0)
{
// write the bottoms that are sitting on supported areas.
Polygons polygonsOnSupport;
polygonsToWrite = PolygonsHelper.ConvertToLines(polygonsToWrite);
polygonsOnSupport = supportOutlines.CreateLineIntersections(polygonsToWrite);
// ensure that all the segments have only 2 points
foreach(Polygon poly in polygonsOnSupport)
{
while(poly.Count > 2)
{
// This is an error and I'm not sure why it happened. It needs to be investigated. // LBB 2016 01 12
poly.RemoveAt(poly.Count - 1);
}
}
gcodeLayer.QueuePolygonsByOptimizer(polygonsOnSupport, fillConfig);
}
else
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
}
}
}
else if (supportWriteType == SupportWriteType.UnsupportedAreas)
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
}
//Add a single layer from a single extruder to the GCode
private void QueueAirGappedExtruderLayerToGCode(LayerDataStorage slicingData, GCodePlanner gcodeLayer, int extruderIndex, int layerIndex, int extrusionWidth_um, int fanSpeedPercent, long currentZ_um)
{
if (config.generateSupport
&& !config.continuousSpiralOuterPerimeter
&& layerIndex > 0)
{
int prevExtruder = gcodeLayer.getExtruder();
bool extruderChanged = gcodeLayer.SetExtruder(extruderIndex);
SliceLayer layer = slicingData.Extruders[extruderIndex].Layers[layerIndex];
PathOrderOptimizer partOrderOptimizer = new PathOrderOptimizer(new IntPoint());
for (int partIndex = 0; partIndex < layer.Islands.Count; partIndex++)
{
if (config.continuousSpiralOuterPerimeter && partIndex > 0)
{
continue;
}
partOrderOptimizer.AddPolygon(layer.Islands[partIndex].InsetToolPaths[0][0]);
}
partOrderOptimizer.Optimize();
List<Polygons> bottomFillIslandPolygons = new List<Polygons>();
for (int inlandIndex = 0; inlandIndex < partOrderOptimizer.bestPolygonOrderIndex.Count; inlandIndex++)
{
if (config.continuousSpiralOuterPerimeter && inlandIndex > 0)
{
continue;
}
LayerIsland part = layer.Islands[partOrderOptimizer.bestPolygonOrderIndex[inlandIndex]];
if (config.avoidCrossingPerimeters)
{
gcodeLayer.SetOuterPerimetersToAvoidCrossing(part.AvoidCrossingBoundery);
}
else
{
gcodeLayer.SetAlwaysRetract(true);
}
Polygons fillPolygons = new Polygons();
Polygons topFillPolygons = new Polygons();
Polygons bridgePolygons = new Polygons();
Polygons bottomFillPolygons = new Polygons();
CalculateInfillData(slicingData, extruderIndex, layerIndex, part, ref bottomFillPolygons, ref fillPolygons, ref topFillPolygons, ref bridgePolygons);
bottomFillIslandPolygons.Add(bottomFillPolygons);
// Write the bridge polygons out first so the perimeter will have more to hold to while bridging the gaps.
// It would be even better to slow down the perimeters that are part of bridges but that is a bit harder.
if (bridgePolygons.Count > 0)
{
gcode.WriteFanCommand(config.bridgeFanSpeedPercent);
gcodeLayer.QueuePolygonsByOptimizer(bridgePolygons, bridgConfig);
}
if (config.numberOfPerimeters > 0)
{
if (inlandIndex != lastPartIndex)
{
// force a retract if changing islands
gcodeLayer.ForceRetract();
lastPartIndex = inlandIndex;
}
if (config.continuousSpiralOuterPerimeter)
{
if (layerIndex >= config.numberOfBottomLayers)
{
inset0Config.spiralize = true;
}
}
}
//After a layer part, make sure the nozzle is inside the comb boundary, so we do not retract on the perimeter.
if (!config.continuousSpiralOuterPerimeter || layerIndex < config.numberOfBottomLayers)
{
gcodeLayer.MoveInsideTheOuterPerimeter(extrusionWidth_um * 2);
}
// Print everything but the first perimeter from the outside in so the little parts have more to stick to.
for (int perimeterIndex = 1; perimeterIndex < part.InsetToolPaths.Count; perimeterIndex++)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, part.InsetToolPaths[perimeterIndex], insetXConfig, SupportWriteType.SupportedAreas);
}
// then 0
if (part.InsetToolPaths.Count > 0)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, part.InsetToolPaths[0], inset0Config, SupportWriteType.SupportedAreas);
}
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bottomFillIslandPolygons[inlandIndex], bottomFillConfig, SupportWriteType.SupportedAreas);
}
}
gcodeLayer.SetOuterPerimetersToAvoidCrossing(null);
}
public void QueueNormalSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportNormalConfig)
{
// normal support
Polygons currentSupportOutlines = supportOutlines[layerIndex];
currentSupportOutlines = currentSupportOutlines.Offset(-supportNormalConfig.lineWidth_um / 2);
List<Polygons> supportIslands = currentSupportOutlines.ProcessIntoSeparatIslands();
foreach (Polygons islandOutline in supportIslands)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
Polygons islandInfillLines = new Polygons();
// render a grid of support
if (config.GenerateSupportPerimeter)
{
Polygons outlines = Clipper.CleanPolygons(islandOutline, config.ExtrusionWidth_um / 4);
gcodeLayer.QueuePolygonsByOptimizer(outlines, supportNormalConfig);
}
Polygons infillOutline = islandOutline.Offset(-supportNormalConfig.lineWidth_um / 2);
if (layerIndex == 0)
{
// on the first layer print this as solid
Infill.GenerateLineInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.ExtrusionWidth_um);
}
else
{
switch (config.SupportType)
{
case ConfigConstants.SUPPORT_TYPE.GRID:
Infill.GenerateGridInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
case ConfigConstants.SUPPORT_TYPE.LINES:
Infill.GenerateLineInfill(config, infillOutline, islandInfillLines, config.SupportInfillStartingAngle, config.SupportLineSpacing_um);
break;
}
}
gcodeLayer.QueuePolygonsByOptimizer(islandInfillLines, supportNormalConfig);
}
}
private void QueueSkirtToGCode(LayerDataStorage slicingData, GCodePlanner gcodeLayer, int layerIndex)
{
if (slicingData.skirt.Count > 0
&& slicingData.skirt[0].Count > 0)
{
IntPoint lowestPoint = slicingData.skirt[0][0];
// lets make sure we start with the most outside loop
foreach (Polygon polygon in slicingData.skirt)
{
foreach (IntPoint position in polygon)
{
if (position.Y < lowestPoint.Y)
{
lowestPoint = polygon[0];
}
}
}
gcodeLayer.QueueTravel(lowestPoint);
}
gcodeLayer.QueuePolygonsByOptimizer(slicingData.skirt, skirtConfig);
}
private void addWipeTower(LayerDataStorage slicingData, GCodePlanner gcodeLayer, int layerNr, int prevExtruder, int extrusionWidth_um)
{
if (config.wipeTowerSize_um < 1)
{
return;
}
//If we changed extruder, print the wipe/prime tower for this nozzle;
gcodeLayer.QueuePolygonsByOptimizer(slicingData.wipeTower, supportInterfaceConfig);
Polygons fillPolygons = new Polygons();
Infill.GenerateLinePaths(slicingData.wipeTower, ref fillPolygons, extrusionWidth_um, config.infillExtendIntoPerimeter_um, 45 + 90 * (layerNr % 2));
gcodeLayer.QueuePolygonsByOptimizer(fillPolygons, supportInterfaceConfig);
//Make sure we wipe the old extruder on the wipe tower.
gcodeLayer.QueueTravel(slicingData.wipePoint - config.extruderOffsets[prevExtruder] + config.extruderOffsets[gcodeLayer.getExtruder()]);
}
public void QueueAirGappedBottomLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportNormalConfig)
{
// normal support
Polygons currentAirGappedBottoms = airGappedBottomOutlines[layerIndex];
currentAirGappedBottoms = currentAirGappedBottoms.Offset(-config.extrusionWidth_um / 2);
List<Polygons> supportIslands = currentAirGappedBottoms.ProcessIntoSeparatIslands();
foreach (Polygons islandOutline in supportIslands)
{
Polygons islandInfillLines = new Polygons();
// render a grid of support
gcodeLayer.QueuePolygonsByOptimizer(islandOutline, supportNormalConfig);
Polygons infillOutline = islandOutline.Offset(-config.extrusionWidth_um / 2);
switch (config.supportType)
{
case ConfigConstants.SUPPORT_TYPE.GRID:
Infill.GenerateGridInfill(config, infillOutline, ref islandInfillLines, config.supportInfillStartingAngle, config.supportLineSpacing_um);
break;
case ConfigConstants.SUPPORT_TYPE.LINES:
Infill.GenerateLineInfill(config, infillOutline, ref islandInfillLines, config.supportInfillStartingAngle, config.supportLineSpacing_um);
break;
}
gcodeLayer.QueuePolygonsByOptimizer(islandInfillLines, supportNormalConfig);
}
}
private void QueuePolygonsConsideringSupport(int layerIndex, GCodePlanner gcodeLayer, Polygons polygonsToWrite, GCodePathConfig fillConfig, SupportWriteType supportWriteType)
{
bool oldLoopValue = fillConfig.closedLoop;
if (config.GenerateSupport
&& layerIndex > 0
&& !config.ContinuousSpiralOuterPerimeter)
{
Polygons supportOutlines = slicingData.support.GetRequiredSupportAreas(layerIndex).Offset(fillConfig.lineWidth_um/2);
if (supportWriteType == SupportWriteType.UnsupportedAreas)
{
if (supportOutlines.Count > 0)
{
// don't write the bottoms that are sitting on supported areas (they will be written at air gap distance later).
Polygons polygonsToWriteAsLines = PolygonsHelper.ConvertToLines(polygonsToWrite);
Polygons polygonsNotOnSupport = polygonsToWriteAsLines.CreateLineDifference(supportOutlines);
fillConfig.closedLoop = false;
gcodeLayer.QueuePolygonsByOptimizer(polygonsNotOnSupport, fillConfig);
}
else
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
}
else
{
if (supportOutlines.Count > 0)
{
if (supportOutlines.Count > 0)
{
// write the bottoms that are sitting on supported areas.
Polygons polygonsToWriteAsLines = PolygonsHelper.ConvertToLines(polygonsToWrite);
Polygons polygonsOnSupport = supportOutlines.CreateLineIntersections(polygonsToWriteAsLines);
fillConfig.closedLoop = false;
gcodeLayer.QueuePolygonsByOptimizer(polygonsOnSupport, fillConfig);
}
else
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
}
}
}
else if (supportWriteType == SupportWriteType.UnsupportedAreas)
{
gcodeLayer.QueuePolygonsByOptimizer(polygonsToWrite, fillConfig);
}
fillConfig.closedLoop = oldLoopValue;
}
//Add a single layer from a single extruder to the GCode
private void QueueExtruderLayerToGCode(LayerDataStorage slicingData, GCodePlanner layerGcodePlanner, int extruderIndex, int layerIndex, int extrusionWidth_um, long currentZ_um)
{
if(extruderIndex > slicingData.Extruders.Count-1)
{
return;
}
SliceLayer layer = slicingData.Extruders[extruderIndex].Layers[layerIndex];
if(layer.AllOutlines.Count == 0
&& config.WipeShieldDistanceFromObject == 0)
{
// don't do anything on this layer
return;
}
if (slicingData.wipeShield.Count > 0 && slicingData.Extruders.Count > 1)
{
layerGcodePlanner.SetAlwaysRetract(true);
layerGcodePlanner.QueuePolygonsByOptimizer(slicingData.wipeShield[layerIndex], skirtConfig);
layerGcodePlanner.SetAlwaysRetract(!config.AvoidCrossingPerimeters);
}
PathOrderOptimizer islandOrderOptimizer = new PathOrderOptimizer(new IntPoint());
for (int partIndex = 0; partIndex < layer.Islands.Count; partIndex++)
{
if (config.ContinuousSpiralOuterPerimeter && partIndex > 0)
{
continue;
}
islandOrderOptimizer.AddPolygon(layer.Islands[partIndex].InsetToolPaths[0][0]);
}
islandOrderOptimizer.Optimize();
List<Polygons> bottomFillIslandPolygons = new List<Polygons>();
for (int islandOrderIndex = 0; islandOrderIndex < islandOrderOptimizer.bestIslandOrderIndex.Count; islandOrderIndex++)
{
if (config.ContinuousSpiralOuterPerimeter && islandOrderIndex > 0)
{
continue;
}
LayerIsland island = layer.Islands[islandOrderOptimizer.bestIslandOrderIndex[islandOrderIndex]];
if (config.AvoidCrossingPerimeters)
{
layerGcodePlanner.SetOuterPerimetersToAvoidCrossing(island.AvoidCrossingBoundary);
}
else
{
layerGcodePlanner.SetAlwaysRetract(true);
}
Polygons fillPolygons = new Polygons();
Polygons topFillPolygons = new Polygons();
Polygons bridgePolygons = new Polygons();
Polygons bottomFillPolygons = new Polygons();
CalculateInfillData(slicingData, extruderIndex, layerIndex, island, bottomFillPolygons, fillPolygons, topFillPolygons, bridgePolygons);
bottomFillIslandPolygons.Add(bottomFillPolygons);
// Write the bridge polygons out first so the perimeter will have more to hold to while bridging the gaps.
// It would be even better to slow down the perimeters that are part of bridges but that is a bit harder.
if (bridgePolygons.Count > 0)
{
QueuePolygonsConsideringSupport(layerIndex, layerGcodePlanner, bridgePolygons, bridgeConfig, SupportWriteType.UnsupportedAreas);
}
if (config.NumberOfPerimeters > 0)
{
if (islandOrderIndex != lastPartIndex)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
layerGcodePlanner.ForceRetract();
}
lastPartIndex = islandOrderIndex;
}
if (config.ContinuousSpiralOuterPerimeter)
{
if (layerIndex >= config.NumberOfBottomLayers)
{
inset0Config.spiralize = true;
}
}
// Figure out where the seam hiding start point is for inset 0 and move to that spot so
// we have the minimum travel while starting inset 0 after printing the rest of the insets
if (island?.InsetToolPaths?[0]?[0]?.Count > 0
&& !config.ContinuousSpiralOuterPerimeter)
{
int bestPoint = PathOrderOptimizer.GetBestIndex(island.InsetToolPaths[0][0], config.ExtrusionWidth_um);
layerGcodePlanner.QueueTravel(island.InsetToolPaths[0][0][bestPoint]);
}
// Put all the insets into a new list so we can keep track of what has been printed.
List<Polygons> insetsToPrint = new List<Polygons>(island.InsetToolPaths.Count);
for (int insetIndex = 0; insetIndex < island.InsetToolPaths.Count; insetIndex++)
{
insetsToPrint.Add(new Polygons());
for (int polygonIndex = 0; polygonIndex < island.InsetToolPaths[insetIndex].Count; polygonIndex++)
{
if (island.InsetToolPaths[insetIndex][polygonIndex].Count > 0)
{
insetsToPrint[insetIndex].Add(island.InsetToolPaths[insetIndex][polygonIndex]);
}
}
}
// If we are on the very first layer we start with the outside so that we can stick to the bed better.
if (config.OutsidePerimetersFirst || layerIndex == 0 || inset0Config.spiralize)
{
if (inset0Config.spiralize)
{
if (island.InsetToolPaths.Count > 0)
{
Polygon outsideSinglePolygon = island.InsetToolPaths[0][0];
layerGcodePlanner.QueuePolygonsByOptimizer(new Polygons() { outsideSinglePolygon }, inset0Config);
}
}
else
{
int insetCount = CountInsetsToPrint(insetsToPrint);
while (insetCount > 0)
{
bool limitDistance = false;
if (island.InsetToolPaths.Count > 0)
{
QueueClosetsInset(insetsToPrint[0], limitDistance, inset0Config, layerIndex, layerGcodePlanner);
}
if (island.InsetToolPaths.Count > 1)
{
// Move to the closest inset 1 and print it
limitDistance = QueueClosetsInset(insetsToPrint[1], limitDistance, insetXConfig, layerIndex, layerGcodePlanner);
for (int insetIndex = 2; insetIndex < island.InsetToolPaths.Count; insetIndex++)
{
limitDistance = QueueClosetsInset(
insetsToPrint[insetIndex],
limitDistance,
insetIndex == 0 ? inset0Config : insetXConfig,
layerIndex,
layerGcodePlanner);
}
}
insetCount = CountInsetsToPrint(insetsToPrint);
}
}
}
else // This is so we can do overhangs better (the outside can stick a bit to the inside).
{
int insetCount = CountInsetsToPrint(insetsToPrint);
while (insetCount > 0)
{
bool limitDistance = false;
if (island.InsetToolPaths.Count > 0)
{
// Move to the closest inset 1 and print it
for (int insetIndex = island.InsetToolPaths.Count-1; insetIndex >= 0; insetIndex--)
{
limitDistance = QueueClosetsInset(
insetsToPrint[insetIndex],
limitDistance,
insetIndex == 0 ? inset0Config : insetXConfig,
layerIndex,
layerGcodePlanner);
}
}
insetCount = CountInsetsToPrint(insetsToPrint);
}
}
}
// TODO: Put all of these segments into a list that can be queued together and still preserver their individual config settings.
// This will make the total amount of travel while printing infill much less.
layerGcodePlanner.QueuePolygonsByOptimizer(fillPolygons, fillConfig);
QueuePolygonsConsideringSupport(layerIndex, layerGcodePlanner, bottomFillPolygons, bottomFillConfig, SupportWriteType.UnsupportedAreas);
layerGcodePlanner.QueuePolygonsByOptimizer(topFillPolygons, topFillConfig);
//After a layer part, make sure the nozzle is inside the comb boundary, so we do not retract on the perimeter.
if (!config.ContinuousSpiralOuterPerimeter || layerIndex < config.NumberOfBottomLayers)
{
layerGcodePlanner.MoveInsideTheOuterPerimeter(extrusionWidth_um * 2);
}
}
// Find the thin lines for this layer and add them to the queue
if (false) // this code is just for test. LBB
{
Polygons fillPolygons = new Polygons();
foreach (var island in layer.Islands)
{
List<Point3> path = new List<Point3>();
List<PathAndWidth> thinLines;
foreach (var outline in island.IslandOutline.Offset(-extrusionWidth_um * 0))
{
foreach (var point in outline)
{
path.Add(new Point3(point, currentZ_um));
}
}
if (layerGcodePlanner.FindThinLines(path, extrusionWidth_um - 2, out thinLines))
{
foreach (var widthPath in thinLines)
{
Polygon thinPath = new Polygon();
foreach (var point in widthPath.Path)
{
thinPath.Add(new IntPoint(point.x, point.y));
}
fillPolygons.Add(thinPath);
}
}
}
layerGcodePlanner.QueuePolygonsByOptimizer(fillPolygons, fillConfig);
}
layerGcodePlanner.SetOuterPerimetersToAvoidCrossing(null);
}
public void QueueNormalSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportNormalConfig, GCodePathConfig supportInterfaceConfig)
{
// normal support
Polygons currentSupportOutlines = supportOutlines[layerIndex];
currentSupportOutlines = currentSupportOutlines.Offset(-supportNormalConfig.lineWidth_um / 2);
List<Polygons> supportIslands = currentSupportOutlines.ProcessIntoSeparatIslands();
foreach (Polygons islandOutline in supportIslands)
{
Polygons islandInfillLines = new Polygons();
// render a grid of support
if (config.generateSupportPerimeter)
{
gcodeLayer.QueuePolygonsByOptimizer(islandOutline, supportNormalConfig);
}
Polygons infillOutline = islandOutline.Offset(-supportNormalConfig.lineWidth_um / 2);
switch (config.supportType)
{
case ConfigConstants.SUPPORT_TYPE.GRID:
Infill.GenerateGridInfill(config, infillOutline, ref islandInfillLines, config.supportInfillStartingAngle, config.supportLineSpacing_um);
break;
case ConfigConstants.SUPPORT_TYPE.LINES:
Infill.GenerateLineInfill(config, infillOutline, ref islandInfillLines, config.supportInfillStartingAngle, config.supportLineSpacing_um);
break;
}
gcodeLayer.QueuePolygonsByOptimizer(islandInfillLines, supportNormalConfig);
}
// interface
Polygons currentInterfaceOutlines = interfaceLayers[layerIndex].Offset(-config.extrusionWidth_um / 2);
if (currentInterfaceOutlines.Count > 0)
{
Polygons supportLines = new Polygons();
Infill.GenerateLineInfill(config, currentInterfaceOutlines, ref supportLines, config.infillStartingAngle + 90, config.extrusionWidth_um);
gcodeLayer.QueuePolygonsByOptimizer(supportLines, supportInterfaceConfig);
}
}
//Add a single layer from a single extruder to the GCode
private void QueueExtruderLayerToGCode(LayerDataStorage slicingData, GCodePlanner gcodeLayer, int extruderIndex, int layerIndex, int extrusionWidth_um, int fanSpeedPercent, long currentZ_um)
{
int prevExtruder = gcodeLayer.getExtruder();
bool extruderChanged = gcodeLayer.SetExtruder(extruderIndex);
SliceLayer layer = slicingData.Extruders[extruderIndex].Layers[layerIndex];
if (extruderChanged)
{
addWipeTower(slicingData, gcodeLayer, layerIndex, prevExtruder, extrusionWidth_um);
}
if (slicingData.wipeShield.Count > 0 && slicingData.Extruders.Count > 1)
{
gcodeLayer.SetAlwaysRetract(true);
gcodeLayer.QueuePolygonsByOptimizer(slicingData.wipeShield[layerIndex], skirtConfig);
gcodeLayer.SetAlwaysRetract(!config.avoidCrossingPerimeters);
}
PathOrderOptimizer partOrderOptimizer = new PathOrderOptimizer(new IntPoint());
for (int partIndex = 0; partIndex < layer.Islands.Count; partIndex++)
{
if (config.continuousSpiralOuterPerimeter && partIndex > 0)
{
continue;
}
partOrderOptimizer.AddPolygon(layer.Islands[partIndex].InsetToolPaths[0][0]);
}
partOrderOptimizer.Optimize();
List<Polygons> bottomFillIslandPolygons = new List<Polygons>();
for (int partIndex = 0; partIndex < partOrderOptimizer.bestPolygonOrderIndex.Count; partIndex++)
{
if (config.continuousSpiralOuterPerimeter && partIndex > 0)
{
continue;
}
LayerIsland island = layer.Islands[partOrderOptimizer.bestPolygonOrderIndex[partIndex]];
if (config.avoidCrossingPerimeters)
{
gcodeLayer.SetOuterPerimetersToAvoidCrossing(island.AvoidCrossingBoundery);
}
else
{
gcodeLayer.SetAlwaysRetract(true);
}
Polygons fillPolygons = new Polygons();
Polygons topFillPolygons = new Polygons();
Polygons bridgePolygons = new Polygons();
Polygons bottomFillPolygons = new Polygons();
CalculateInfillData(slicingData, extruderIndex, layerIndex, island, ref bottomFillPolygons, ref fillPolygons, ref topFillPolygons, ref bridgePolygons);
bottomFillIslandPolygons.Add(bottomFillPolygons);
// Write the bridge polygons out first so the perimeter will have more to hold to while bridging the gaps.
// It would be even better to slow down the perimeters that are part of bridges but that is a bit harder.
if (bridgePolygons.Count > 0)
{
gcode.WriteFanCommand(config.bridgeFanSpeedPercent);
gcodeLayer.QueuePolygonsByOptimizer(bridgePolygons, bridgConfig);
}
if (config.numberOfPerimeters > 0)
{
if (partIndex != lastPartIndex)
{
// force a retract if changing islands
if (config.retractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
lastPartIndex = partIndex;
}
if (config.continuousSpiralOuterPerimeter)
{
if (layerIndex >= config.numberOfBottomLayers)
{
inset0Config.spiralize = true;
}
}
// If we are on the very first layer we start with the outside so that we can stick to the bed better.
if (config.outsidePerimetersFirst || layerIndex == 0 || inset0Config.spiralize)
{
if (inset0Config.spiralize)
{
if (island.InsetToolPaths.Count > 0)
{
Polygon outsideSinglePolygon = island.InsetToolPaths[0][0];
gcodeLayer.QueuePolygonsByOptimizer(new Polygons() { outsideSinglePolygon }, inset0Config);
}
}
else
{
// First the outside (this helps with accuracy)
if (island.InsetToolPaths.Count > 0)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, island.InsetToolPaths[0], inset0Config, SupportWriteType.UnsupportedAreas);
}
for (int perimeterIndex = 1; perimeterIndex < island.InsetToolPaths.Count; perimeterIndex++)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, island.InsetToolPaths[perimeterIndex], insetXConfig, SupportWriteType.UnsupportedAreas);
}
}
}
else // This is so we can do overhangs better (the outside can stick a bit to the inside).
{
// Figure out where the seam hiding start point is for inset 0 and move to that spot so
// we have the minimum travel while starting inset 0 after printing the rest of the insets
if (island?.InsetToolPaths?[0]?[0]?.Count > 0)
{
int bestPoint = PathOrderOptimizer.GetBestEdgeIndex(island.InsetToolPaths[0][0]);
gcodeLayer.QueueTravel(island.InsetToolPaths[0][0][bestPoint]);
}
// Print everything but the first perimeter from the outside in so the little parts have more to stick to.
for (int perimeterIndex = 1; perimeterIndex < island.InsetToolPaths.Count; perimeterIndex++)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, island.InsetToolPaths[perimeterIndex], insetXConfig, SupportWriteType.UnsupportedAreas);
}
// then 0
if (island.InsetToolPaths.Count > 0)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, island.InsetToolPaths[0], inset0Config, SupportWriteType.UnsupportedAreas);
}
}
}
gcodeLayer.QueuePolygonsByOptimizer(fillPolygons, fillConfig);
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bottomFillPolygons, bottomFillConfig, SupportWriteType.UnsupportedAreas);
gcodeLayer.QueuePolygonsByOptimizer(topFillPolygons, topFillConfig);
//After a layer part, make sure the nozzle is inside the comb boundary, so we do not retract on the perimeter.
if (!config.continuousSpiralOuterPerimeter || layerIndex < config.numberOfBottomLayers)
{
gcodeLayer.MoveInsideTheOuterPerimeter(extrusionWidth_um * 2);
}
}
gcodeLayer.SetOuterPerimetersToAvoidCrossing(null);
}
public void QueueInterfaceSupportLayer(ConfigSettings config, GCodePlanner gcodeLayer, int layerIndex, GCodePathConfig supportInterfaceConfig)
{
// interface
Polygons currentInterfaceOutlines2 = interfaceLayers[layerIndex].Offset(-config.ExtrusionWidth_um / 2);
if (currentInterfaceOutlines2.Count > 0)
{
List<Polygons> interfaceIslands = currentInterfaceOutlines2.ProcessIntoSeparatIslands();
foreach (Polygons interfaceOutline in interfaceIslands)
{
// force a retract if changing islands
if (config.RetractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
Polygons supportLines = new Polygons();
Infill.GenerateLineInfill(config, interfaceOutline, supportLines, config.InfillStartingAngle + 90, config.ExtrusionWidth_um);
gcodeLayer.QueuePolygonsByOptimizer(supportLines, supportInterfaceConfig);
}
}
}