void addWipeTower(SliceDataStorage storage, 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.writePolygonsByOptimizer(storage.wipeTower, supportInterfaceConfig);
Polygons fillPolygons = new Polygons();
Infill.GenerateLinePaths(storage.wipeTower, ref fillPolygons, extrusionWidth_um, config.infillExtendIntoPerimeter_um, 45 + 90 * (layerNr % 2));
gcodeLayer.writePolygonsByOptimizer(fillPolygons, supportInterfaceConfig);
//Make sure we wipe the old extruder on the wipe tower.
gcodeLayer.writeTravel(storage.wipePoint - config.extruderOffsets[prevExtruder] + config.extruderOffsets[gcodeLayer.getExtruder()]);
}
//Add a single layer from a single mesh-volume to the GCode
void AddVolumeLayerToGCode(SliceDataStorage storage, GCodePlanner gcodeLayer, int volumeIndex, int layerIndex, int extrusionWidth_um, int fanSpeedPercent)
{
int prevExtruder = gcodeLayer.getExtruder();
bool extruderChanged = gcodeLayer.setExtruder(volumeIndex);
if (layerIndex == 0 && volumeIndex == 0 && !Raft.ShouldGenerateRaft(config))
{
if (storage.skirt.Count > 0 &&
storage.skirt[0].Count > 0)
{
IntPoint lowestPoint = storage.skirt[0][0];
// lets make sure we start with the most outside loop
foreach (Polygon polygon in storage.skirt)
{
foreach (IntPoint position in polygon)
{
if (position.Y < lowestPoint.Y)
{
lowestPoint = polygon[0];
}
}
}
gcodeLayer.writeTravel(lowestPoint);
}
gcodeLayer.writePolygonsByOptimizer(storage.skirt, skirtConfig);
}
SliceLayer layer = storage.volumes[volumeIndex].layers[layerIndex];
if (extruderChanged)
{
addWipeTower(storage, gcodeLayer, layerIndex, prevExtruder, extrusionWidth_um);
}
if (storage.wipeShield.Count > 0 && storage.volumes.Count > 1)
{
gcodeLayer.setAlwaysRetract(true);
gcodeLayer.writePolygonsByOptimizer(storage.wipeShield[layerIndex], skirtConfig);
gcodeLayer.setAlwaysRetract(!config.avoidCrossingPerimeters);
}
PathOrderOptimizer partOrderOptimizer = new PathOrderOptimizer(new IntPoint());
for (int partIndex = 0; partIndex < layer.parts.Count; partIndex++)
{
partOrderOptimizer.AddPolygon(layer.parts[partIndex].insets[0][0]);
}
partOrderOptimizer.Optimize();
for (int partCounter = 0; partCounter < partOrderOptimizer.bestPolygonOrderIndex.Count; partCounter++)
{
SliceLayerPart part = layer.parts[partOrderOptimizer.bestPolygonOrderIndex[partCounter]];
if (config.avoidCrossingPerimeters)
{
gcodeLayer.SetOuterPerimetersToAvoidCrossing(part.combBoundery);
}
else
{
gcodeLayer.setAlwaysRetract(true);
}
Polygons fillPolygons = new Polygons();
Polygons bridgePolygons = new Polygons();
CalculateInfillData(storage, volumeIndex, layerIndex, extrusionWidth_um, part, ref fillPolygons, ref bridgePolygons);
// Write the bidge polgons 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.writePolygonsByOptimizer(bridgePolygons, bridgConfig);
gcode.writeFanCommand(fanSpeedPercent);
}
if (config.numberOfPerimeters > 0)
{
if (partCounter > 0)
{
gcodeLayer.forceRetract();
}
if (config.continuousSpiralOuterPerimeter)
{
if (layerIndex >= config.numberOfBottomLayers)
{
inset0Config.spiralize = true;
}
if (layerIndex == config.numberOfBottomLayers && part.insets.Count > 0)
{
gcodeLayer.writePolygonsByOptimizer(part.insets[0], insetXConfig);
}
}
// If we are on the very first layer we start with the outside in so that we can stick to the bed better.
if (config.outsidePerimetersFirst || layerIndex == 0)
{
// First the outside (this helps with accuracy)
if (part.insets.Count > 0)
{
gcodeLayer.writePolygonsByOptimizer(part.insets[0], inset0Config);
}
for (int perimeterIndex = 1; perimeterIndex < part.insets.Count; perimeterIndex++)
{
gcodeLayer.writePolygonsByOptimizer(part.insets[perimeterIndex], insetXConfig);
}
}
else // This is so we can do overhanges better (the outside can stick a bit to the inside).
{
// 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.insets.Count; perimeterIndex++)
{
gcodeLayer.writePolygonsByOptimizer(part.insets[perimeterIndex], insetXConfig);
}
// then 0
if (part.insets.Count > 0)
{
gcodeLayer.writePolygonsByOptimizer(part.insets[0], inset0Config);
}
}
}
gcodeLayer.writePolygonsByOptimizer(fillPolygons, fillConfig);
//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);
}