public static void DrawInstanceObject(this DisplayPipeline display, InstanceObject instanceObject, Transform xForm, bool highlight)
{
instanceObject.Explode(false, out var pieces, out _,
out var pieceTransforms);
var geo = instanceObject.Geometry;
for (int i = 0; i < pieces.Length; i++)
{
if (highlight)
{
display.DrawObjectHighlighted(pieces[i], xForm * pieceTransforms[i]);
}
else
{
display.DrawObject(pieces[i], xForm * pieceTransforms[i]);
}
}
}
public static void DrawObjectHighlighted(this DisplayPipeline display, RhinoObject rhinoObject, Transform xForm)
{
// get old color and color source
var objColor = rhinoObject.Attributes.ObjectColor;
var objColorSource = rhinoObject.Attributes.ColorSource;
// modify
rhinoObject.Attributes.ObjectColor = Rhino.ApplicationSettings.AppearanceSettings.SelectedObjectColor;
rhinoObject.Attributes.ColorSource = ObjectColorSource.ColorFromObject;
rhinoObject.CommitChanges();
// draw
display.DrawObject(rhinoObject, xForm);
// restore old settings
rhinoObject.Attributes.ObjectColor = objColor;
rhinoObject.Attributes.ColorSource = objColorSource;
rhinoObject.CommitChanges();
}
