Merge pull request #885 from mattiskoh/offset_plane

added Plane offset method

Author: tomvanmele

CHANGELOG.md

@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
-
+* Added `Plane.offset`
 ### Added
 
 * Added `draw_vertexlabels`, `draw_edgelabels`, `draw_facelabels`, `draw_vertexnormals`, and `draw_facenormals` to `compas_blender.artists.MeshArtist`.

src/compas/geometry/primitives/plane.py

@@ -298,3 +298,22 @@ def transform(self, T):
         """
         self.point.transform(T)
         self.normal.transform(T)
+
+    def offset(self, distance):
+        """Returns a new offset plane by a given distance.
+        Plane normal is used as positive direction.
+
+        Parameters:
+        -----------
+        plane: :class:`compas.geometry.Plane`
+            The plane to be offset.
+        distance: :obj:`float`
+            The offset distance.
+
+        Returns
+        --------
+        :class:`Plane`
+            The offset plane.
+        """
+
+        return Plane(self.point+self.normal.scaled(distance), self.normal)