public static void GetPreview(GH_Document definition, CompoundDrawable compoundDrawable,
Action <IGH_ActiveObject> onNotDrawble = null, Action <IGH_ActiveObject> onSuccessfulExtract = null)
{
var meshParameters = definition.PreviewCurrentMeshParameters() ?? Rhino.Geometry.MeshingParameters.Default;
var isRenderMode = definition.PreviewMode == GH_PreviewMode.Shaded;
foreach (var obj in definition.Objects.OfType <IGH_ActiveObject>())
{
if (obj.Locked)
{
continue;
}
bool isSelected = obj.Attributes.Selected;
if (definition.PreviewFilter == GH_PreviewFilter.Selected && !isSelected)
{
continue;
}
if (obj is IGH_PreviewObject previewObject)
{
if (previewObject.IsPreviewCapable && !previewObject.Hidden)
{
var geometries = new List <Rhino.Geometry.GeometryBase>();
if (obj is IGH_Component component)
{
foreach (var param in component.Params.Output)
{
ExtractGeometry(param.VolatileData, ref geometries, isRenderMode, meshParameters);
}
}
else if (obj is IGH_Param param)
{
ExtractGeometry(param.VolatileData, ref geometries, isRenderMode, meshParameters);
}
if (geometries.Count != 0)
{
geometries.ForEach(geom => compoundDrawable.AddDrawable(new PreviewDrawable(geom), isSelected));
onSuccessfulExtract?.Invoke(obj);
}
}
}
else
{
onNotDrawble?.Invoke(obj);
}
}
}
public GrasshopperPreview()
{
Init();
_compoundDrawable = new CompoundDrawable();
}
