static IList <GeometryObject> ImportObject(File3dm model, GeometryBase geometry, ObjectAttributes attributes, Document doc, Dictionary <string, Autodesk.Revit.DB.Material> materials, double scaleFactor)
{
var layer = model.AllLayers.FindIndex(attributes.LayerIndex);
if (layer?.IsVisible ?? false)
{
using (var ctx = GeometryEncoder.Context.Push())
{
switch (attributes.MaterialSource)
{
case ObjectMaterialSource.MaterialFromObject:
{
var modelMaterial = attributes.MaterialIndex < 0 ? Rhino.DocObjects.Material.DefaultMaterial : model.AllMaterials.FindIndex(attributes.MaterialIndex);
ctx.MaterialId = ToHost(modelMaterial, doc, materials);
break;
}
case ObjectMaterialSource.MaterialFromLayer:
{
var modelLayer = model.AllLayers.FindIndex(attributes.LayerIndex);
var modelMaterial = modelLayer.RenderMaterialIndex < 0 ? Rhino.DocObjects.Material.DefaultMaterial : model.AllMaterials.FindIndex(modelLayer.RenderMaterialIndex);
ctx.MaterialId = ToHost(modelMaterial, doc, materials);
break;
}
}
if (geometry is InstanceReferenceGeometry instance)
{
if (model.AllInstanceDefinitions.FindId(instance.ParentIdefId) is InstanceDefinitionGeometry definition)
{
var definitionId = definition.Id.ToString();
var library = DirectShapeLibrary.GetDirectShapeLibrary(doc);
if (!library.Contains(definitionId))
{
var objectIds = definition.GetObjectIds();
var GNodes = objectIds.
Select(x => model.Objects.FindId(x)).
Cast <File3dmObject>().
SelectMany(x => ImportObject(model, x.Geometry, x.Attributes, doc, materials, scaleFactor));
library.AddDefinition(definitionId, GNodes.ToArray());
}
return(DirectShape.CreateGeometryInstance(doc, definitionId, instance.Xform.ToTransform(scaleFactor)));
}
}
else
{
return(geometry.ToShape(scaleFactor));
}
}
}
return(new GeometryObject[0]);
}
public static IEnumerable <DB.GeometryObject> ToHostMultiple(this GeometryBase geometry, double scaleFactor) => geometry.ToShape(scaleFactor);