fix: improvements to code component and metadata following @eleniv3d 's comments in PR

Author: DamienGilliard

src/gh/components/DF_main_pc_axes/code.py

@@ -5,17 +5,12 @@
 from diffCheck import df_poses
 
 import Rhino
+from Grasshopper.Kernel import GH_RuntimeMessageLevel as RML
 
 from ghpythonlib.componentbase import executingcomponent as component
 
 import System
 
-def compute_dot_product(v1, v2):
-    """
-    Compute the dot product of two vectors.
-    """
-    return (v1.X * v2.X) + (v1.Y * v2.Y) + (v1.Z * v2.Z)
-
 class DFMainPCAxes(component):
     def RunScript(self,
             i_clouds: System.Collections.Generic.List[Rhino.Geometry.PointCloud],
@@ -33,7 +28,8 @@ def RunScript(self,
             df_cloud = df_cvt_bindings.cvt_rhcloud_2_dfcloud(cloud)
             if df_cloud is None:
                 return None, None
-            df_cloud.estimate_normals(True, 12)
+            if not df_cloud.has_normals():
+                ghenv.Component.AddRuntimeMessage(RML.Error, f"Point cloud {i} has no normals. Please compute the normals.") # noqa: F821
 
             df_points = df_cloud.get_axis_aligned_bounding_box()
             df_point = (df_points[0] + df_points[1]) / 2

src/gh/components/DF_main_pc_axes/metadata.json

@@ -17,7 +17,7 @@
                 "name": "i_clouds",
                 "nickname": "i_clouds",
                 "description": "clouds whose main axes are to be calculated",
-                "optional": true,
+                "optional": false,
                 "allowTreeAccess": true,
                 "showTypeHints": true,
                 "scriptParamAccess": "list",