//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];
IslandOrderOptimizer partOrderOptimizer = new IslandOrderOptimizer(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.bestIslandOrderIndex.Count; inlandIndex++)
{
if (config.continuousSpiralOuterPerimeter && inlandIndex > 0)
{
continue;
}
LayerIsland part = layer.Islands[partOrderOptimizer.bestIslandOrderIndex[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);
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bridgePolygons, airGappedBottomConfig, SupportWriteType.SupportedAreas);
}
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], airGappedBottomConfig, SupportWriteType.SupportedAreas);
}
// then 0
if (part.InsetToolPaths.Count > 0)
{
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, part.InsetToolPaths[0], airGappedBottomConfig, SupportWriteType.SupportedAreas);
}
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bottomFillIslandPolygons[inlandIndex], airGappedBottomConfig, SupportWriteType.SupportedAreas);
}
}
gcodeLayer.SetOuterPerimetersToAvoidCrossing(null);
}
//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);
}
IslandOrderOptimizer islandOrderOptimizer = new IslandOrderOptimizer(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)
{
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);
QueuePolygonsConsideringSupport(layerIndex, gcodeLayer, bridgePolygons, airGappedBottomConfig, SupportWriteType.UnsupportedAreas);
}
if (config.numberOfPerimeters > 0)
{
if (islandOrderIndex != lastPartIndex)
{
// force a retract if changing islands
if (config.retractWhenChangingIslands)
{
gcodeLayer.ForceRetract();
}
lastPartIndex = islandOrderIndex;
}
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 = IslandOrderOptimizer.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);
}