public Surface NurbsSurfaceToSpeckle(DB.NurbsSurfaceData surface, DB.BoundingBoxUV uvBox)
{
var result = new Surface();
result.units = ModelUnits;
result.degreeU = surface.DegreeU;
result.degreeV = surface.DegreeV;
var knotsU = surface.GetKnotsU().ToList();
var knotsV = surface.GetKnotsV().ToList();
result.knotsU = knotsU.GetRange(1, knotsU.Count - 2);
result.knotsV = knotsV.GetRange(1, knotsV.Count - 2);
var controlPointCountU = knotsU.Count - result.degreeU - 1;
var controlPointCountV = knotsV.Count - result.degreeV - 1;
var controlPoints = surface.GetControlPoints();
var weights = surface.GetWeights();
var points = new List <List <ControlPoint> >();
for (var u = 0; u < controlPointCountU; u++)
{
var uOffset = u * controlPointCountV;
var row = new List <ControlPoint>();
for (var v = 0; v < controlPointCountV; v++)
{
var pt = controlPoints[uOffset + v];
var extPt = ToExternalCoordinates(pt);
if (surface.IsRational)
{
var w = weights[uOffset + v];
row.Add(new ControlPoint(ScaleToSpeckle(extPt.X), ScaleToSpeckle(extPt.Y), ScaleToSpeckle(extPt.Z), w, ModelUnits));
}
else
{
row.Add(new ControlPoint(ScaleToSpeckle(extPt.X), ScaleToSpeckle(extPt.Y), ScaleToSpeckle(extPt.Z), ModelUnits));
}
}
points.Add(row);
}
result.SetControlPoints(points);
return(result);
}
public Surface SurfaceToSpeckle(NurbsSurface surface, string units = null)
{
var u = units ?? ModelUnits;
var result = new Surface();
result.units = u;
// Set control points
var dsPoints = surface.ControlPoints();
var dsWeights = surface.Weights();
var points = new List <List <ControlPoint> >();
for (var i = 0; i < dsPoints.Length; i++)
{
var row = new List <ControlPoint>();
for (var j = 0; j < dsPoints[i].Length; j++)
{
var dsPoint = dsPoints[i][j];
var dsWeight = dsWeights[i][j];
row.Add(new ControlPoint(dsPoint.X, dsPoint.Y, dsPoint.Z, dsWeight, null));
}
points.Add(row);
}
result.SetControlPoints(points);
// Set degree
result.degreeU = surface.DegreeU;
result.degreeV = surface.DegreeV;
// Set knot vectors
result.knotsU = surface.UKnots().ToList();
result.knotsV = surface.VKnots().ToList();
// Set other
result.rational = surface.IsRational;
result.closedU = surface.ClosedInU;
result.closedV = surface.ClosedInV;
result.area = surface.Area;
result.bbox = BoxToSpeckle(surface.BoundingBox.ToCuboid(), u);
return(result);
}
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;
var knotsV = surface.knotsV;
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);
}