/// <summary>
/// Splits a surface by multiple curves.
/// </summary>
/// <param name="srf"></param>
/// <param name="crvs"></param>
/// <search></search>
public static Autodesk.DesignScript.Geometry.Geometry[] SplitPlanarSurfaceByMultipleCurves(this Autodesk.DesignScript.Geometry.Surface srf, List <Autodesk.DesignScript.Geometry.Curve> crvs)
{
Autodesk.DesignScript.Geometry.Vector vec = srf.NormalAtParameter(0.5, 0.5);
List <Autodesk.DesignScript.Geometry.Surface> srfLst = new List <Autodesk.DesignScript.Geometry.Surface>();
foreach (Autodesk.DesignScript.Geometry.Curve crv in crvs)
{
Autodesk.DesignScript.Geometry.Surface splitSrf = crv.Extrude(vec, 5000);
srfLst.Add(splitSrf);
}
Autodesk.DesignScript.Geometry.PolySurface polysrf = Autodesk.DesignScript.Geometry.PolySurface.ByJoinedSurfaces(srfLst);
Autodesk.DesignScript.Geometry.Geometry[] geo = srf.Split(polysrf);
vec.Dispose();
polysrf.Dispose();
foreach (Autodesk.DesignScript.Geometry.Surface s in srfLst)
{
s.Dispose();
}
return(geo);
}
public static object AwareTributaryArea_ByPoints(Dyn.Surface boundarySrf, List <Dyn.Point> pointsForLoad, bool flipDirection)
{
sDynamoConverter dycon = new sDynamoConverter("Feet", "Meters");
List <Dyn.UV> uvs = new List <Dyn.UV>();
//double fac = 10;
//if (flipDirection) fac *= -1;
//foreach (Dyn.Curve seg in Dyn.PolyCurve.ByJoinedCurves(boundarySrf.PerimeterCurves()).Offset(fac).Explode())
//{
// uvs.Add(boundarySrf.UVParameterAtPoint(seg.PointAtParameter(0.5)));
//}
foreach (Dyn.Point lp in pointsForLoad)
{
uvs.Add(boundarySrf.UVParameterAtPoint(lp));
}
List <Dyn.Surface> vorocut = new List <Dyn.Surface>();
foreach (var vc in Voronoi.ByParametersOnSurface(uvs, boundarySrf))
{
Dyn.Curve vcc = vc as Dyn.Curve;
Dyn.Geometry[] ints = boundarySrf.Intersect(vcc);
if (ints != null && ints.Length > 0)
{
for (int i = 0; i < ints.Length; ++i)
{
if (ints[i] is Dyn.Curve)
{
Dyn.Curve ic = ints[i] as Dyn.Curve;
Dyn.Surface isrf = ic.Extrude(Dyn.Vector.ZAxis().Scale(5));
vorocut.Add(isrf);
}
else
{
object t = ints[i];
}
}
}
}
List <Dyn.Surface> voroPattern = new List <Dyn.Surface>();
List <double> voroArea = new List <double>();
List <Dyn.Point> lpts = new List <Dyn.Point>();
Dyn.PolySurface vorocutPoly = Dyn.PolySurface.ByJoinedSurfaces(vorocut);
Dyn.Geometry[] splited = boundarySrf.Split(vorocutPoly);
for (int i = 0; i < splited.Length; ++i)
{
Dyn.Surface vsrf = splited[i] as Dyn.Surface;
if (vsrf != null)
{
//voroPattern.Add(Dyn.PolyCurve.ByJoinedCurves(vsrf.PerimeterCurves()));
voroPattern.Add(vsrf);
voroArea.Add(vsrf.Area);
foreach (Dyn.Point lp in pointsForLoad)
{
if (lp.DistanceTo(vsrf) < 0.005)
{
lpts.Add(lp);
break;
}
}
}
}
//vorocutPoly.Dispose();
return(new Dictionary <string, object>
{
{ "LoadPoints", lpts },
{ "TributaryAreaSrfs", voroPattern },
{ "TributaryArea", voroArea }
});
}