public void GenerateRaftOutlines(long extraDistanceAroundPart_um, ConfigSettings config)
{
LayerDataStorage storage = this;
for (int extruderIndex = 0; extruderIndex < storage.Extruders.Count; extruderIndex++)
{
if (config.ContinuousSpiralOuterPerimeter && extruderIndex > 0)
{
continue;
}
if (storage.Extruders[extruderIndex].Layers.Count < 1)
{
continue;
}
SliceLayer layer = storage.Extruders[extruderIndex].Layers[0];
// let's find the first layer that has something in it for the raft rather than a zero layer
if (layer.Islands.Count == 0 && storage.Extruders[extruderIndex].Layers.Count > 2)
{
layer = storage.Extruders[extruderIndex].Layers[1];
}
for (int partIndex = 0; partIndex < layer.Islands.Count; partIndex++)
{
if (config.ContinuousSpiralOuterPerimeter && partIndex > 0)
{
continue;
}
storage.raftOutline = storage.raftOutline.CreateUnion(layer.Islands[partIndex].IslandOutline.Offset(extraDistanceAroundPart_um));
}
}
storage.raftOutline = storage.raftOutline.CreateUnion(storage.WipeLayer(0).Offset(extraDistanceAroundPart_um));
if (storage.WipeShield.Count > 0 &&
storage.WipeShield[0].Count > 0)
{
storage.raftOutline = storage.raftOutline.CreateUnion(storage.WipeShield[0].Offset(extraDistanceAroundPart_um));
}
if (storage.Support != null)
{
storage.raftOutline = storage.raftOutline.CreateUnion(storage.Support.GetBedOutlines().Offset(extraDistanceAroundPart_um));
}
}
private static Polygons GetSkirtBounds(ConfigSettings config, LayerDataStorage storage, bool externalOnly, long distance_um, long extrusionWidth_um, int brimCount)
{
bool hasWipeTower = storage.WipeLayer(0).PolygonLength() > 0;
var skirtPolygons = new Polygons();
if (config.EnableRaft)
{
skirtPolygons = skirtPolygons.CreateUnion(storage.raftOutline);
}
else
{
var allOutlines = hasWipeTower ? new Polygons(storage.WipeLayer(0).Offset(-extrusionWidth_um / 2)) : new Polygons();
if (storage.WipeShield.Count > 0 &&
storage.WipeShield[0].Count > 0)
{
allOutlines = allOutlines.CreateUnion(storage.WipeShield[0].Offset(-extrusionWidth_um / 2));
}
// Loop over every extruder
for (int extrudeIndex = 0; extrudeIndex < storage.Extruders.Count; extrudeIndex++)
{
// Only process the first extruder on spiral vase or
// skip extruders that have empty layers
if (config.ContinuousSpiralOuterPerimeter)
{
SliceLayer layer0 = storage.Extruders[extrudeIndex].Layers[0];
if (layer0.Islands.Count > 0)
{
allOutlines.AddAll(layer0.Islands[0]?.IslandOutline);
}
}
else
{
// Add the layers outline to allOutlines
SliceLayer layer = storage.Extruders[extrudeIndex].Layers[0];
foreach (var island in layer.Islands)
{
if (island.IslandOutline?.Count > 0)
{
allOutlines.Add(island.IslandOutline[0]);
}
}
}
}
if (brimCount > 0)
{
Polygons brimIslandOutlines = new Polygons();
// Grow each island by the current brim distance
// Union the island brims
brimIslandOutlines = brimIslandOutlines.CreateUnion(allOutlines);
if (storage.Support != null)
{
brimIslandOutlines = brimIslandOutlines.CreateUnion(storage.Support.GetBedOutlines());
}
Polygons brimLoops = new Polygons();
for (int brimIndex = 0; brimIndex < brimCount; brimIndex++)
{
// Extend the polygons to account for the brim (ensures convex hull takes this data into account)
brimLoops.AddAll(brimIslandOutlines.Offset(extrusionWidth_um * brimIndex + extrusionWidth_um / 2));
}
storage.Brims.AddAll(brimLoops);
// and extend the bounds of the skirt polygons
skirtPolygons = skirtPolygons.CreateUnion(brimIslandOutlines.Offset(extrusionWidth_um * brimCount));
}
skirtPolygons = skirtPolygons.CreateUnion(allOutlines);
if (storage.Support != null)
{
skirtPolygons = skirtPolygons.CreateUnion(storage.Support.GetBedOutlines());
}
}
return(skirtPolygons);
}