public NurbsSurface SurfaceToNative(Surface surface)
{
var points = new DS.Point[] [] { };
var weights = new double[] [] { };
var controlPoints = surface.GetControlPoints();
points = controlPoints.Select(row => row.Select(p => DS.Point.ByCoordinates(
ScaleToNative(p.x, p.units),
ScaleToNative(p.y, p.units),
ScaleToNative(p.z, p.units))).ToArray())
.ToArray();
weights = controlPoints.Select(row => row.Select(p => p.weight).ToArray()).ToArray();
var knotsU = surface.knotsU;
knotsU.Insert(0, knotsU[0]);
knotsU.Add(knotsU[knotsU.Count - 1]);
var knotsV = surface.knotsV;
knotsV.Insert(0, knotsV[0]);
knotsV.Add(knotsV[knotsV.Count - 1]);
var result = DS.NurbsSurface.ByControlPointsWeightsKnots(points, weights, knotsU.ToArray(), surface.knotsV.ToArray(),
surface.degreeU, surface.degreeV);
return(result);
}
public BRepBuilderSurfaceGeometry SurfaceToNative(Surface surface)
{
var uvBox = new DB.BoundingBoxUV(surface.knotsU[0], surface.knotsV[0], surface.knotsU[surface.knotsU.Count - 1], surface.knotsV[surface.knotsV.Count - 1]);
var surfPts = surface.GetControlPoints();
var uKnots = SurfaceKnotsToNative(surface.knotsU);
var vKnots = SurfaceKnotsToNative(surface.knotsV);
var cPts = ControlPointsToNative(surfPts);
BRepBuilderSurfaceGeometry result;
if (!surface.rational)
{
result = DB.BRepBuilderSurfaceGeometry.CreateNURBSSurface(surface.degreeU, surface.degreeV, uKnots,
vKnots, cPts, false, uvBox);
}
else
{
var weights = ControlPointWeightsToNative(surfPts);
result = DB.BRepBuilderSurfaceGeometry.CreateNURBSSurface(surface.degreeU, surface.degreeV, uKnots,
vKnots, cPts, weights, false, uvBox);
}
return(result);
}