// [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);
}
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 void Append(FillPolygon2d loop)
{
Loops.Add(loop);
}