// [TODO] no reason we couldn't start on edge midpoint??
public virtual void AppendPolygon2d(FillPolygon2d poly)
{
Vector3d currentPos = Builder.Position;
Vector2d currentPos2 = currentPos.xy;
int N = poly.VertexCount;
if (N < 2)
{
throw new Exception("PathScheduler.AppendPolygon2d: degenerate curve!");
}
int iNearest = CurveUtils2.FindNearestVertex(currentPos2, poly.Vertices);
Vector2d startPt = poly[iNearest];
Builder.AppendTravel(startPt, Settings.RapidTravelSpeed);
List <Vector2d> loopV = new List <Vector2d>(N + 1);
for (int i = 0; i <= N; i++)
{
int k = (iNearest + i) % N;
loopV.Add(poly[k]);
}
double useSpeed = select_speed(poly);
Builder.AppendExtrude(loopV, useSpeed, poly.TypeFlags, null);
}
private void AppendTravel(Vector2d startPt, Vector2d endPt)
{
double travelDistance = startPt.Distance(endPt);
// a travel may require a retract, which we might want to skip
if (ExtrudeOnShortTravels &&
travelDistance < ShortTravelDistance)
{
Builder.AppendExtrude(endPt, Settings.RapidTravelSpeed);
}
else if (Settings.TravelLiftEnabled &&
travelDistance > Settings.TravelLiftDistanceThreshold)
{
Builder.AppendZChange(Settings.TravelLiftHeight, Settings.ZTravelSpeed, ToolpathTypes.Travel);
Builder.AppendTravel(endPt, Settings.RapidTravelSpeed);
Builder.AppendZChange(-Settings.TravelLiftHeight, Settings.ZTravelSpeed, ToolpathTypes.Travel);
}
else
{
Builder.AppendTravel(endPt, Settings.RapidTravelSpeed);
}
}
protected virtual void AppendTravel(Vector2d startPt, Vector2d endPt)
{
double travelDistance = startPt.Distance(endPt);
// a travel may require a retract, which we might want to skip
if (ExtrudeOnShortTravels &&
travelDistance < ShortTravelDistance)
{
// TODO: Add strategy for extrude move?
Builder.AppendExtrude(endPt, Settings.Part.RapidTravelSpeed, new DefaultFillType());
}
else if (Settings.Part.TravelLiftEnabled &&
travelDistance > Settings.Part.TravelLiftDistanceThreshold)
{
Builder.AppendMoveToZ(LayerZ + Settings.Part.TravelLiftHeight, Settings.Part.ZTravelSpeed, ToolpathTypes.Travel);
Builder.AppendTravel(endPt, Settings.Part.RapidTravelSpeed);
Builder.AppendMoveToZ(LayerZ, Settings.Part.ZTravelSpeed, ToolpathTypes.Travel);
}
else
{
Builder.AppendTravel(endPt, Settings.Part.RapidTravelSpeed);
}
}