/// <summary>
/// Create Edge (Circle) from Rhino closed ArcCurve.
/// </summary>
public static Geometry.Edge FromRhinoCircle(this Rhino.Geometry.ArcCurve obj)
{
double radius = obj.Radius;
FdPoint3d centerPoint = obj.Arc.Center.FromRhino();
// lcs
FdCoordinateSystem cs = obj.FromRhinoCurve();
// return
return(new Geometry.Edge(radius, centerPoint, cs));
}
/// <summary>
/// Create Edge (Arc2) from Rhino open ArcCurve.
/// </summary>
public static Geometry.Edge FromRhinoArc2(this Rhino.Geometry.ArcCurve obj)
{
FdPoint3d startPoint = obj.Arc.StartPoint.FromRhino();
FdPoint3d midPoint = obj.Arc.MidPoint.FromRhino();
FdPoint3d endPoint = obj.Arc.EndPoint.FromRhino();
// lcs
FdCoordinateSystem cs = obj.FromRhinoCurve();
// return
return(new Geometry.Edge(startPoint, midPoint, endPoint, cs));
}
/// <summary>
/// Create Edge (Arc1) from Rhino open ArcCurve.
/// </summary>
public static Geometry.Edge FromRhinoArc1(this Rhino.Geometry.ArcCurve obj)
{
double radius = obj.Arc.Radius;
double startAngle = 0;
double endAngle = obj.Arc.EndAngle - obj.Arc.StartAngle;
FdPoint3d centerPoint = obj.Arc.Center.FromRhino();
FdVector3d xAxis = new FdVector3d(centerPoint, obj.Arc.StartPoint.FromRhino());
// lcs
FdCoordinateSystem cs = obj.FromRhinoCurve();
// return
return(new Geometry.Edge(radius, startAngle, endAngle, centerPoint, xAxis, cs));
}
/// <summary>
/// Create Edge (Line or Arc2) from Rhino LineCurve or open ArcCurve.
/// Used for bar definition.
/// </summary>
public static Geometry.Edge FromRhinoLineOrArc2(this Rhino.Geometry.Curve obj)
{
// check length
if (obj.GetLength() < FemDesign.Tolerance.Point3d)
{
throw new System.ArgumentException("Curve has no length.");
}
// if ArcCurve
if (obj.GetType() == typeof(Rhino.Geometry.ArcCurve))
{
Rhino.Geometry.ArcCurve arcCurve = (Rhino.Geometry.ArcCurve)obj;
// if Arc
if (!obj.IsClosed)
{
return(arcCurve.FromRhinoArc2());
}
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not Line or Arc.");
}
}
// if LineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.LineCurve))
{
return(((Rhino.Geometry.LineCurve)obj).FromRhinoLineCurve());
}
// if PolylineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.PolylineCurve))
{
if (obj.SpanCount == 1)
{
Rhino.Geometry.LineCurve lnCrv = new Rhino.Geometry.LineCurve(obj.PointAtStart, obj.PointAtEnd);
return(lnCrv.FromRhinoLineCurve());
}
else
{
throw new System.ArgumentException($"PolylineCurve with SpanCount: {obj.SpanCount}, is not supported for conversion to an Edge.");
}
}
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not Line or Arc.");
}
}
/// <summary>
/// Convert a Rhino Curve to Edge
/// </summary>
/// <param name="obj"></param>
/// <param name="arcType1">True if output is general purpose Edge. False if output is BarPart Edge.</param>
/// <returns></returns>
public static Geometry.Edge FromRhino(this Rhino.Geometry.Curve obj)
{
// check length
if (obj.GetLength() < FemDesign.Tolerance.Point3d)
{
throw new System.ArgumentException("Curve has no length.");
}
// if ArcCurve
if (obj.GetType() == typeof(Rhino.Geometry.ArcCurve))
{
Rhino.Geometry.ArcCurve arcCurve = (Rhino.Geometry.ArcCurve)obj;
// if Arc
if (!obj.IsClosed)
{
return(arcCurve.FromRhinoArc1());
}
// if Circle
else
{
return(arcCurve.FromRhinoCircle());
}
}
// if LineCurve
else if (obj.GetType() == typeof(Rhino.Geometry.LineCurve))
{
return(((Rhino.Geometry.LineCurve)obj).FromRhinoLineCurve());
}
// if NurbsCurve
else if (obj.GetType() == typeof(Rhino.Geometry.NurbsCurve))
{
return(((Rhino.Geometry.NurbsCurve)obj).FromRhinoNurbsCurve());
}
// else
else
{
throw new System.ArgumentException($"Curve type: {obj.GetType()}, is not supported for conversion to an Edge.");
}
}
bool CreateSolid(double tolerance, out Rhino.Geometry.Brep outBrep)
{
outBrep = null;
Rhino.Geometry.Point3d origin = new Rhino.Geometry.Point3d(0.0, 0.0, 0.0);
Rhino.Geometry.Circle circle = new Rhino.Geometry.Circle(origin, 10.0);
Rhino.Geometry.ArcCurve curve = new Rhino.Geometry.ArcCurve(circle);
Rhino.Geometry.Vector3d direction = new Rhino.Geometry.Vector3d(0, 0, 10);
Rhino.Geometry.Surface surface = Rhino.Geometry.Surface.CreateExtrusion(curve, direction);
Rhino.Geometry.Brep brep = Rhino.Geometry.Brep.CreateFromSurface(surface);
Rhino.Geometry.Brep solid = brep.CapPlanarHoles(tolerance);
bool rc = solid.IsValid;
if (rc)
{
outBrep = solid;
}
return(rc);
}
private void ExtractGeometry(Grasshopper.Kernel.Types.IGH_Goo iGoo, ref List <Rhino.Geometry.GeometryBase> resGeom)
{
if (iGoo is Grasshopper.Kernel.Types.GH_GeometryGroup group)
{
foreach (var geomGoo in group.Objects)
{
ExtractGeometry(geomGoo, ref resGeom);
}
return;
}
Rhino.Geometry.GeometryBase geometryBase = null;
try
{
switch (iGoo.ScriptVariable())
{
case Rhino.Geometry.Point3d point:
geometryBase = new Rhino.Geometry.Point(point);
break;
case Rhino.Geometry.Line line:
geometryBase = new Rhino.Geometry.LineCurve(line);
break;
case Rhino.Geometry.Rectangle3d rect:
geometryBase = rect.ToNurbsCurve();
break;
case Rhino.Geometry.Arc arc:
geometryBase = new Rhino.Geometry.ArcCurve(arc);
break;
case Rhino.Geometry.Circle circle:
geometryBase = new Rhino.Geometry.ArcCurve(circle);
break;
case Rhino.Geometry.Ellipse ellipse:
geometryBase = ellipse.ToNurbsCurve();
break;
case Rhino.Geometry.Curve curve:
geometryBase = curve;
break;
case Rhino.Geometry.Box box:
geometryBase = Rhino.Geometry.Mesh.CreateFromBox(box, 1, 1, 1); break;
case Rhino.Geometry.Mesh mesh:
geometryBase = mesh; break;
case Rhino.Geometry.Brep brep:
{
if (!CompoundDrawable.IsRenderMode)
{
foreach (var crv in brep.GetWireframe(-1))
{
resGeom.Add(crv);
}
}
else
{
var previewMesh = new Rhino.Geometry.Mesh();
previewMesh.Append(Rhino.Geometry.Mesh.CreateFromBrep(brep, MeshParameters));
geometryBase = previewMesh;
}
break;
}
case Rhino.Geometry.Plane plane:
{
double len = 4.0;
var x = new Rhino.Geometry.Interval(-len, len);
var y = new Rhino.Geometry.Interval(-len, len);
geometryBase = Rhino.Geometry.Mesh.CreateFromPlane(plane, x, y, 5, 5);
break;
}
default:
{
System.Diagnostics.Debug.Fail("Not supported GH type", iGoo.GetType().ToString());
break;
}
}
}
catch (Exception e)
{
System.Diagnostics.Debug.Fail(e.Source, e.Message);
}
if (geometryBase != null)
{
resGeom.Add(geometryBase);
}
}
