/// <summary>
/// Fill polygon with solid fill strategy.
/// If bIsInfillAdjacent, then we optionally add one or more shells around the solid
/// fill, to give the solid fill something to stick to (imagine dense linear fill adjacent
/// to sparse infill area - when the extruder zigs, most of the time there is nothing
/// for the filament to attach to, so it pulls back. ugly!)
/// </summary>
protected virtual void fill_solid_region(int layer_i, GeneralPolygon2d solid_poly,
IFillPathScheduler2d scheduler,
bool bIsInfillAdjacent = false)
{
List <GeneralPolygon2d> fillPolys = new List <GeneralPolygon2d>()
{
solid_poly
};
// if we are on an infill layer, and this shell has some infill region,
// then we are going to draw contours around solid fill so it has
// something to stick to
// [TODO] should only be doing this if solid-fill is adjecent to infill region.
// But how to determine this? not easly because we don't know which polys
// came from where. Would need to do loop above per-polygon
if (bIsInfillAdjacent && Settings.Part.InteriorSolidRegionShells > 0)
{
ShellsFillPolygon interior_shells = new ShellsFillPolygon(solid_poly, Settings.FillTypeFactory.Solid());
interior_shells.PathSpacing = Settings.SolidFillPathSpacingMM();
interior_shells.ToolWidth = Settings.Machine.NozzleDiamMM;
interior_shells.Layers = Settings.Part.InteriorSolidRegionShells;
interior_shells.PreserveOuterShells = true;
interior_shells.InsetFromInputPolygonX = 0;
interior_shells.Compute();
scheduler.AppendCurveSets(interior_shells.Shells);
fillPolys = interior_shells.InnerPolygons;
}
// now actually fill solid regions
foreach (GeneralPolygon2d fillPoly in fillPolys)
{
var solidFillSpacing = Settings.SolidFillPathSpacingMM();
TiledFillPolygon tiled_fill = new TiledFillPolygon(fillPoly)
{
TileSize = 13.1 * solidFillSpacing,
TileOverlap = 0.3 * solidFillSpacing
};
tiled_fill.TileFillGeneratorF = (tilePoly, index) =>
{
int odd = ((index.x + index.y) % 2 == 0) ? 1 : 0;
RasterFillPolygon solid_gen = new RasterFillPolygon(tilePoly, Settings.FillTypeFactory.Solid())
{
InsetFromInputPolygon = false,
PathSpacing = solidFillSpacing,
ToolWidth = Settings.Machine.NozzleDiamMM,
AngleDeg = LayerFillAngleF(layer_i + odd)
};
return(solid_gen);
};
tiled_fill.Compute();
scheduler.AppendCurveSets(tiled_fill.FillCurves);
}
}
public void SortAndAppendTo(Vector2d startPoint, IFillPathScheduler2d scheduler)
{
var saveHint = scheduler.SpeedHint;
OutPoint = startPoint;
List <Index3i> sorted = find_short_path_v1(startPoint);
foreach (Index3i idx in sorted)
{
FillCurveSet2d paths = new FillCurveSet2d();
SchedulerSpeedHint pathHint = SchedulerSpeedHint.Default;
if (idx.a == 0) // loop
{
PathLoop loop = Loops[idx.b];
pathHint = loop.speedHint;
if (idx.c != 0)
{
int iStart = idx.c;
FillPolygon2d o = new FillPolygon2d();
int N = loop.curve.VertexCount;
for (int i = 0; i < N; ++i)
{
o.AppendVertex(loop.curve[(i + iStart) % N]);
}
o.TypeFlags = loop.curve.TypeFlags;
paths.Append(o);
OutPoint = o.Vertices[0];
}
else
{
paths.Append(loop.curve);
OutPoint = loop.curve.Vertices[0];
}
}
else // span
{
PathSpan span = Spans[idx.b];
if (idx.c == 1)
{
span.curve.Reverse();
}
paths.Append(span.curve);
OutPoint = span.curve.End;
pathHint = span.speedHint;
}
scheduler.SpeedHint = pathHint;
scheduler.AppendCurveSets(new List <FillCurveSet2d>()
{
paths
});
}
scheduler.SpeedHint = saveHint;
}
public virtual void AppendCurveSets(List <FillCurveSet2d> paths)
{
if (CurrentSorter == null)
{
TargetScheduler.AppendCurveSets(paths);
throw new Exception("TODO: need to update lastPoint...");
}
else
{
CurrentSorter.SpeedHint = this.SpeedHint;
CurrentSorter.AppendCurveSets(paths);
}
}
public virtual void SortAndAppendTo(Vector2d startPoint, IFillPathScheduler2d scheduler)
{
var saveHint = scheduler.SpeedHint;
CurrentPosition = startPoint;
List <Index3i> sorted = find_short_path_v1(startPoint);
foreach (Index3i idx in sorted)
{
FillCurveSet2d paths = new FillCurveSet2d();
SpeedHint pathHint = SpeedHint.Default;
if (idx.a == 0)
{ // loop
PathLoop loop = Loops[idx.b];
pathHint = loop.speedHint;
if (idx.c != 0)
{
var rolled = loop.loop.RollToVertex(idx.c);
paths.Append(rolled);
CurrentPosition = rolled.Entry;
}
else
{
paths.Append(loop.loop);
CurrentPosition = loop.loop.Entry;
}
}
else
{ // span
PathSpan span = Spans[idx.b];
if (idx.c == 1)
{
span.curve = span.curve.Reversed();
}
paths.Append(span.curve);
CurrentPosition = span.curve.Exit;
pathHint = span.speedHint;
}
scheduler.SpeedHint = pathHint;
scheduler.AppendCurveSets(new List <FillCurveSet2d>()
{
paths
});
}
scheduler.SpeedHint = saveHint;
}
protected virtual void fill_bridge_region_decompose(GeneralPolygon2d poly, IFillPathScheduler2d scheduler, PrintLayerData layer_data)
{
poly.Simplify(0.1, 0.01, true);
TriangulatedPolygonGenerator generator = new TriangulatedPolygonGenerator()
{
Polygon = poly, Subdivisions = 16
};
DMesh3 mesh = generator.Generate().MakeDMesh();
//Util.WriteDebugMesh(mesh, "/Users/rms/scratch/bridgemesh.obj");
//List<Polygon2d> polys = decompose_mesh_recursive(mesh);
List <Polygon2d> polys = decompose_cluster_up(mesh);
Util.WriteDebugMesh(mesh, "/Users/rms/scratch/bridgemesh_reduce.obj");
double spacing = Settings.BridgeFillPathSpacingMM();
foreach (Polygon2d polypart in polys)
{
Box2d box = polypart.MinimalBoundingBox(0.00001);
Vector2d axis = (box.Extent.x > box.Extent.y) ? box.AxisY : box.AxisX;
double angle = Math.Atan2(axis.y, axis.x) * MathUtil.Rad2Deg;
GeneralPolygon2d gp = new GeneralPolygon2d(polypart);
ShellsFillPolygon shells_fill = new ShellsFillPolygon(gp);
shells_fill.PathSpacing = Settings.SolidFillPathSpacingMM();
shells_fill.ToolWidth = Settings.Machine.NozzleDiamMM;
shells_fill.Layers = 1;
shells_fill.InsetFromInputPolygonX = 0.25;
shells_fill.ShellType = ShellsFillPolygon.ShellTypes.BridgeShell;
shells_fill.FilterSelfOverlaps = false;
shells_fill.Compute();
scheduler.AppendCurveSets(shells_fill.GetFillCurves());
var fillPolys = shells_fill.InnerPolygons;
double offset = Settings.Machine.NozzleDiamMM * Settings.SolidFillBorderOverlapX;
fillPolys = ClipperUtil.MiterOffset(fillPolys, offset);
foreach (var fp in fillPolys)
{
BridgeLinesFillPolygon fill_gen = new BridgeLinesFillPolygon(fp)
{
InsetFromInputPolygon = false,
PathSpacing = spacing,
ToolWidth = Settings.Machine.NozzleDiamMM,
AngleDeg = angle,
};
fill_gen.Compute();
scheduler.AppendCurveSets(fill_gen.GetFillCurves());
}
}
// fit bbox to try to find fill angle that has shortest spans
//Box2d box = poly.Outer.MinimalBoundingBox(0.00001);
//Vector2d axis = (box.Extent.x > box.Extent.y) ? box.AxisY : box.AxisX;
//double angle = Math.Atan2(axis.y, axis.x) * MathUtil.Rad2Deg;
// [RMS] should we do something like this?
//if (Settings.SolidFillBorderOverlapX > 0) {
// double offset = Settings.Machine.NozzleDiamMM * Settings.SolidFillBorderOverlapX;
// fillPolys = ClipperUtil.MiterOffset(fillPolys, offset);
//}
}