/// <summary>
/// Convert a Nucleus extrusion volume to a Rhino one
/// </summary>
/// <param name="extrusion"></param>
/// <returns></returns>
public static RC.Extrusion Convert(Extrusion extrusion)
{
if (extrusion.IsValid)
{
Curve perimeter = extrusion.Profile?.Perimeter;
CurveCollection voids = extrusion.Profile?.Voids;
if (perimeter != null)
{
RC.Curve profile = Convert(perimeter);
// var cSystem = new CartesianCoordinateSystem(new Vector(), extrusion.Path);
//If a line, create an extrusion:
RC.Extrusion ext = new RC.Extrusion();
ext.SetPathAndUp(new RC.Point3d(0, 0, 0), Convert(extrusion.Path), RC.Vector3d.YAxis); //TODO: Test!
//ConvertVector(cSystem.Z));
ext.SetOuterProfile(profile, true);
if (voids != null)
{
var voidCrvs = Convert(voids);
foreach (var rCrv in voidCrvs)
{
ext.AddInnerProfile(rCrv);
}
}
//RC.Surface surface = RC.Extrusion.CreateExtrusion(profile, new RC.Vector3d(Convert(element.End.Position - element.Start.Position)));
return(ext);
}
}
return(null);
}
/// <summary>
/// Convert a Nucleus Linear Element to a Rhino Extrusion, if possible
/// </summary>
/// <param name="element"></param>
/// <returns></returns>
public static RC.Extrusion ConvertToExtrusion(LinearElement element)
{
Curve perimeter = element?.Family?.Profile?.Perimeter;
CurveCollection voids = element?.Family?.Profile?.Voids;
if (perimeter != null && element.Geometry != null)
{
RC.Curve profile = Convert(perimeter);
var cSystem = element.Geometry.LocalCoordinateSystem(0, element.Orientation);
if (element.Geometry is Line)
{
//If a line, create an extrusion:
RC.Extrusion ext = new RC.Extrusion();
ext.SetPathAndUp(
Convert(element.Geometry.EndPoint), Convert(element.Geometry.StartPoint),
ConvertVector(cSystem.Z));
ext.SetOuterProfile(profile, true);
if (voids != null)
{
var voidCrvs = Convert(voids);
foreach (var rCrv in voidCrvs)
{
ext.AddInnerProfile(rCrv);
}
}
//RC.Surface surface = RC.Extrusion.CreateExtrusion(profile, new RC.Vector3d(Convert(element.End.Position - element.Start.Position)));
return(ext);
}
}
return(null);
}
public SurfaceConverter(CurveConverter curveConv, Vector3DConverter vecConv, Point3dConverter ptConv)
{
//extrusion surfaces
AddConverter(new PipeConverter <rh.Extrusion, pps.Extrusion>(
(rhE) => {
ppc.Line path = (ppc.Line)curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.PathLineCurve());
pps.Extrusion extr = new pps.Extrusion(curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.Profile3d(0, 0)),
vecConv.ConvertToPipe <rh.Vector3d, pp.Vec>(rhE.PathTangent), path.Length);
for (int i = 1; i < rhE.ProfileCount; i++)
{
extr.Holes.Add(curveConv.ConvertToPipe <rh.Curve, ppc.Curve>(rhE.Profile3d(i, 0)));
}
extr.CappedAtStart = rhE.IsCappedAtBottom;
extr.CappedAtEnd = rhE.IsCappedAtTop;
extr.SurfaceNormal = vecConv.ToPipe <rh.Vector3d, pp.Vec>(rhE.NormalAt(rhE.Domain(0).Mid, rhE.Domain(1).Mid));
return(extr);
},
(ppE) => {
if (1 - ppE.Direction.Dot(new pp.Vec(0, 0, 1)) > 1e-3)
{
//the extrusion is not vertical
throw new InvalidOperationException("Cannot create this extrusion. " +
"Try converting it into a polysurface and pushing it again");
}
var profile = curveConv.FromPipe <rh.Curve, ppc.Curve>(ppE.ProfileCurve);
rh.Extrusion extr = rh.Extrusion.Create(profile, ppE.Height, ppE.CappedAtEnd || ppE.CappedAtStart);
ppE.Holes.ForEach((h) => extr.AddInnerProfile(curveConv.FromPipe <rh.Curve, ppc.Curve>(h)));
//extr.SetOuterProfile(profile, false);
//extr.SetPathAndUp(profile.PointAtStart, profile.PointAtStart + pathVec, pathVec);
string msg;
if (!extr.IsValidWithLog(out msg))
{
System.Diagnostics.Debug.WriteLine(msg);
throw new InvalidOperationException("Cannot create a valid extrusion from the received data: \n" + msg);
}
var rhNorm = extr.NormalAt(extr.Domain(0).Mid, extr.Domain(1).Mid);
if (rh.Vector3d.Multiply(rhNorm, vecConv.FromPipe <rh.Vector3d, pp.Vec>(ppE.SurfaceNormal)) < 0)
{
//extrusions don't need to be flipped;
}
return(extr);
}
));
//NurbsSurfaces
AddConverter(new PipeConverter <rh.NurbsSurface, pps.NurbsSurface>(
(rns) =>
{
pps.NurbsSurface nurbs = new pps.NurbsSurface(rns.Points.CountU, rns.Points.CountV, rns.Degree(0), rns.Degree(1));
for (int u = 0; u < rns.Points.CountU; u++)
{
for (int v = 0; v < rns.Points.CountV; v++)
{
nurbs.SetControlPoint(ptConv.ToPipe <rh.Point3d, pp.Vec>(rns.Points.GetControlPoint(u, v).Location), u, v);
nurbs.SetWeight(rns.Points.GetControlPoint(u, v).Weight, u, v);
}
}
rh.Interval uDomain = rns.Domain(0);
rh.Interval vDomain = rns.Domain(1);
Func <double, rh.Interval, double> scaleKnot = (k, domain) => (k - domain.Min) / (domain.Length);
nurbs.UKnots = rns.KnotsU.Select((k) => scaleKnot.Invoke(k, uDomain)).ToList();
nurbs.VKnots = rns.KnotsV.Select((k) => scaleKnot.Invoke(k, vDomain)).ToList();
nurbs.IsClosedInU = rns.IsClosed(0);
nurbs.IsClosedInV = rns.IsClosed(1);
nurbs.SurfaceNormal = vecConv.ToPipe <rh.Vector3d, pp.Vec>(rns.NormalAt(rns.Domain(0).Mid, rns.Domain(1).Mid));
return(nurbs);
},
(pns) => {
if (pns.IsClosedInU)
{
pns.WrapPointsToCloseSurface(0);
}
if (pns.IsClosedInV)
{
pns.WrapPointsToCloseSurface(1);
}
var nurbs = rh.NurbsSurface.Create(3, true, pns.UDegree + 1, pns.VDegree + 1, pns.UCount, pns.VCount);
for (int u = 0; u < pns.UCount; u++)
{
for (int v = 0; v < pns.VCount; v++)
{
var cp = new rh.ControlPoint(ptConv.FromPipe <rh.Point3d, pp.Vec>(pns.GetControlPointAt(u, v)),
pns.GetWeightAt(u, v));
nurbs.Points.SetControlPoint(u, v, cp);
}
}
rh.Interval uDomain = nurbs.Domain(0);
rh.Interval vDomain = nurbs.Domain(1);
Func <double, rh.Interval, double> scaleKnot = (k, domain) => k * (domain.Length) + domain.Min;
if (nurbs.KnotsU.Count == pns.UKnots.Count)
{
for (int i = 0; i < nurbs.KnotsU.Count; i++)
{
nurbs.KnotsU[i] = scaleKnot.Invoke(pns.UKnots[i], uDomain);
}
}
if (nurbs.KnotsV.Count == pns.VKnots.Count)
{
for (int i = 0; i < nurbs.KnotsV.Count; i++)
{
nurbs.KnotsV[i] = scaleKnot.Invoke(pns.VKnots[i], vDomain);
}
}
string msg;
if (!nurbs.IsValidWithLog(out msg))
{
System.Diagnostics.Debug.WriteLine(msg);
if (!nurbs.IsPeriodic(0))
{
nurbs.KnotsU.CreateUniformKnots(1.0 / (nurbs.Points.CountU));
}
else
{
nurbs.KnotsU.CreatePeriodicKnots(1.0 / (nurbs.Points.CountU));
}
if (!nurbs.IsPeriodic(1))
{
nurbs.KnotsV.CreateUniformKnots(1.0 / (nurbs.Points.CountV));
}
else
{
nurbs.KnotsV.CreatePeriodicKnots(1.0 / (nurbs.Points.CountV));
}
if (!nurbs.IsValid)
{
throw new InvalidOperationException("Cannot create a valid NURBS surface: \n" + msg);
}
}
var rhNorm = nurbs.NormalAt(nurbs.Domain(0).Mid, nurbs.Domain(1).Mid);
if (rh.Vector3d.Multiply(rhNorm, vecConv.FromPipe <rh.Vector3d, pp.Vec>(pns.SurfaceNormal)) < 0)
{
//need not flip rhino surfaces
}
return(nurbs);
}
));
}