void Append(SmoothCurveElement cTo, SmoothCurveElement cAppend)
{
ParametricCurveSequence2 use = null;
if (cTo.source is ParametricCurveSequence2)
{
use = cTo.source as ParametricCurveSequence2;
}
else
{
use = new ParametricCurveSequence2();
use.Append(cTo.source);
}
if (cAppend.source is ParametricCurveSequence2)
{
var cseq = cAppend.source as ParametricCurveSequence2;
foreach (var c in cseq.Curves)
{
use.Append(c);
}
}
else
{
use.Append(cAppend.source);
}
cTo.source = use;
UpdateSampling(cTo);
}
public static IParametricCurve2d Convert(Polygon2d poly)
{
ParametricCurveSequence2 seq = new ParametricCurveSequence2();
int N = poly.VertexCount;
for (int i = 0; i < N; ++i)
{
seq.Append(new Segment2d(poly[i], poly[(i + 1) % N]));
}
seq.IsClosed = true;
return(seq);
}