static internal IEnumerable <Rhino.Geometry.Curve> GetPreviewWires(this IEnumerable <Autodesk.Revit.DB.GeometryObject> geometries)
{
var scaleFactor = Revit.ModelUnits;
foreach (var geometry in geometries)
{
var gs = Revit.ActiveDBDocument.GetElement(geometry.GraphicsStyleId) as GraphicsStyle;
if (geometry.Visibility != Visibility.Visible)
{
continue;
}
switch (geometry)
{
case Autodesk.Revit.DB.GeometryInstance instance:
foreach (var g in instance.GetInstanceGeometry().GetPreviewWires())
{
yield return(g);
}
break;
case Autodesk.Revit.DB.Solid solid:
if (solid.Faces.IsEmpty)
{
continue;
}
foreach (var edge in solid.Edges.OfType <Edge>())
{
var s = edge.AsCurve().ToRhino();
if (scaleFactor != 1.0)
{
s?.Scale(scaleFactor);
}
yield return(s);
}
break;
case Autodesk.Revit.DB.Curve curve:
var c = curve.ToRhino();
if (scaleFactor != 1.0)
{
c?.Scale(scaleFactor);
}
yield return(c);
break;
case Autodesk.Revit.DB.PolyLine polyline:
if (polyline.NumberOfCoordinates <= 0)
{
continue;
}
var p = new Rhino.Geometry.PolylineCurve(polyline.GetCoordinates().ToRhino());
if (scaleFactor != 1.0)
{
p?.Scale(scaleFactor);
}
yield return(p);
break;
}
}
}
static internal IEnumerable <Rhino.Geometry.GeometryBase> ToRhino(this IEnumerable <Autodesk.Revit.DB.GeometryObject> geometries)
{
var scaleFactor = Revit.ModelUnits;
foreach (var geometry in geometries)
{
switch (geometry)
{
case Autodesk.Revit.DB.GeometryInstance instance:
foreach (var g in instance.GetInstanceGeometry().ToRhino())
{
yield return(g);
}
break;
case Autodesk.Revit.DB.Mesh mesh:
var m = mesh.ToRhino();
m.Faces.ConvertTrianglesToQuads(Revit.AngleTolerance, 0.0);
if (scaleFactor != 1.0)
{
m?.Scale(scaleFactor);
}
yield return(m);
break;
case Autodesk.Revit.DB.Solid solid:
var s = solid.ToRhino();
if (scaleFactor != 1.0)
{
s?.Scale(scaleFactor);
}
yield return(s);
break;
case Autodesk.Revit.DB.Curve curve:
var c = curve.ToRhino();
if (scaleFactor != 1.0)
{
c?.Scale(scaleFactor);
}
yield return(c);
break;
case Autodesk.Revit.DB.PolyLine polyline:
var p = new Rhino.Geometry.PolylineCurve(polyline.GetCoordinates().ToRhino());
if (scaleFactor != 1.0)
{
p?.Scale(scaleFactor);
}
yield return(p);
break;
}
}
}