Using /metadata API path (see #46)

onshape_to_robot/onshape_api/client.py

@@ -338,7 +338,7 @@ def invoke():
 
     def part_get_metadata(self, did, mid, eid, partid, configuration = 'default'):
         def invoke():
-            return self._api.request('get', '/api/parts/d/' + did + '/m/' + mid + '/e/' + eid + '/partid/'+escape_slash(partid)+'/metadata', query={'configuration': configuration})
+            return self._api.request('get', '/api/metadata/d/' + did + '/m/' + mid + '/e/' + eid + '/p/'+escape_slash(partid), query={'configuration': configuration})
 
         return json.loads(self.cache_get('metadata', (did, mid, eid, self.hash_partid(partid), configuration), invoke, True))
 

onshape_to_robot/onshape_to_robot.py

@@ -111,12 +111,15 @@ def addPart(occurrence, matrix):
         else:
             metadata = client.part_get_metadata(
                 part['documentId'], part['documentMicroversion'], part['elementId'], part['partId'], part['configuration'])
-            if 'appearance' in metadata:
-                colors = metadata['appearance']['color']
-                color = np.array(
-                    [colors['red'], colors['green'], colors['blue']])/255.0
-            else:
-                color = [0.5, 0.5, 0.5]
+
+            color = [0.5, 0.5, 0.5]
+
+            # XXX: There must be a better way to retrieve the part color
+            for entry in metadata['properties']:
+                if 'value' in entry and type(entry['value']) is dict and 'color' in entry['value']:
+                    rgb = entry['value']['color']
+                    color = np.array(
+                        [rgb['red'], rgb['green'], rgb['blue']])/255.0
 
         # Obtain mass properties about that part
         if config['noDynamics']:

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="onshape-to-robot",
-    version="0.3.17",
+    version="0.3.18",
     author="Rhoban team",
     author_email="[email protected]",
     description="Converting OnShape assembly to robot definition (SDF or URDF) through OnShape API ",