Basic reading/writing

addons/io_scene_swbf_msh/msh_model_utilities.py

@@ -26,6 +26,14 @@ def inject_dummy_data(model : Model):
     model.geometry = [dummy_seg]
     model.model_type = ModelType.STATIC
 
+def convert_vector_space_(vec: Vector) -> Vector:
+    return Vector((-vec.x, vec.z, vec.y))
+
+def convert_rotation_space_(quat: Quaternion) -> Quaternion:
+    return Quaternion((-quat.w, quat.x, -quat.z, -quat.y))
+
+def model_transform_to_matrix(transform: ModelTransform):
+    return Matrix.Translation(convert_vector_space_(transform.translation)) @ convert_rotation_space_(transform.rotation).to_matrix().to_4x4()
 
 def scale_segments(scale: Vector, segments: List[GeometrySegment]):
     """ Scales are positions in the GeometrySegment list. """