public static Tuple <PolyCurve, List <Point3d>, List <string> > _notUsedConvertMem2dCrv(Curve crv, double tolerance = -1)
{
PolyCurve m_crv = null;
List <string> crv_type = new List <string>();
List <Point3d> m_topo = new List <Point3d>();
if (crv.Degree > 1)
{
if (!crv.IsArc() | crv.IsClosed)
{
if (tolerance < 0)
{
tolerance = Tolerance.RhinoDocTolerance();
}
m_crv = crv.ToArcsAndLines(tolerance * 20, 5, 0, 0);
Curve[] segments;
if (m_crv != null)
{
segments = m_crv.DuplicateSegments();
}
else
{
segments = new Curve[] { crv }
};
for (int i = 0; i < segments.Length; i++)
{
m_topo.Add(segments[i].PointAtStart);
crv_type.Add("");
if (segments[i].IsArc())
{
m_topo.Add(segments[i].PointAtNormalizedLength(0.5));
crv_type.Add("A");
}
}
m_topo.Add(segments[segments.Length - 1].PointAtEnd);
crv_type.Add("");
}
else
{
crv_type.Add("");
crv_type.Add("A");
crv_type.Add("");
m_topo.Add(crv.PointAtStart);
m_topo.Add(crv.PointAtNormalizedLength(0.5));
m_topo.Add(crv.PointAtEnd);
m_crv = new PolyCurve();
m_crv.Append(crv);
}
}
else if (crv.Degree == 1)
{
if (crv.SpanCount > 1)
{
m_crv = new PolyCurve();
Curve[] segments = crv.DuplicateSegments();
for (int i = 0; i < segments.Length; i++)
{
crv_type.Add("");
m_topo.Add(segments[i].PointAtStart);
m_crv.Append(segments[i]);
}
crv_type.Add("");
m_topo.Add(segments[segments.Length - 1].PointAtEnd);
}
else
{
crv_type.Add("");
crv_type.Add("");
m_topo.Add(crv.PointAtStart);
m_topo.Add(crv.PointAtEnd);
m_crv = new PolyCurve();
m_crv.Append(crv);
}
}
return(new Tuple <PolyCurve, List <Point3d>, List <string> >(m_crv, m_topo, crv_type));
}