diff --git a/FlatCAMDraw.py b/FlatCAMDraw.py
index 18974b3..39592ab 100644
--- a/FlatCAMDraw.py
+++ b/FlatCAMDraw.py
@@ -1022,9 +1022,9 @@ class FlatCAMDraw(QtCore.QObject):
             #                            animated=True)
             try:
                 for el in list(geo.geo):
-                    self.tool_shape.add(el, color='blue', update=False)
+                    self.tool_shape.add(el, color='#00000080', update=False)
             except TypeError:
-                self.tool_shape.add(geo.geo, color='blue', update=False)
+                self.tool_shape.add(geo.geo, color='#00000080', update=False)
 
             self.tool_shape.redraw()
 
diff --git a/FlatCAMObj.py b/FlatCAMObj.py
index 1273f39..6790ac3 100644
--- a/FlatCAMObj.py
+++ b/FlatCAMObj.py
@@ -53,6 +53,9 @@ class FlatCAMObj(QtCore.QObject):
         # self.ui.offset_button.clicked.connect(self.on_offset_button_click)
         # self.ui.scale_button.clicked.connect(self.on_scale_button_click)
 
+    def __del__(self):
+        pass
+
     def from_dict(self, d):
         """
         This supersedes ``from_dict`` in derived classes. Derived classes
diff --git a/VisPyCanvas.py b/VisPyCanvas.py
index 609cbbc..0ea77da 100644
--- a/VisPyCanvas.py
+++ b/VisPyCanvas.py
@@ -60,8 +60,9 @@ class VisPyCanvas(scene.SceneCanvas):
     def fit_view(self):
         rect = Rect(-1, -1, 10, 10)
         try:
-            rect.left, rect.right = self.shape_collection.bounds(axis=0)
-            rect.bottom, rect.top = self.shape_collection.bounds(axis=1)
+            rect.left, rect.right = self.shape_collection.bounds(axis=0, view=self.shape_collection)
+            rect.bottom, rect.top = self.shape_collection.bounds(axis=1, view=self.shape_collection)
         except TypeError:
             pass
         self.view.camera.rect = rect
+        print "fit_view", rect
diff --git a/VisPyVisuals.py b/VisPyVisuals.py
index 6ca558b..104f32e 100644
--- a/VisPyVisuals.py
+++ b/VisPyVisuals.py
@@ -27,13 +27,12 @@ class ShapeGroup(object):
         for i in self._indexes:
             self._collection.remove(i, False)
 
-        self._indexes = []
+        del self._indexes[:]
 
         if update:
             self._collection.redraw()
 
     def redraw(self):
-        t0 = time.time()
         self._collection.redraw()
 
     @property
@@ -54,7 +53,7 @@ class ShapeCollectionVisual(CompoundVisual):
     total_segments = 0
     total_tris = 0
 
-    def __init__(self, line_width=1, triangulation='vispy', **kwargs):
+    def __init__(self, line_width=1, triangulation='gpc', **kwargs):
         self.data = {}
         self.last_key = -1
 
@@ -181,12 +180,12 @@ class ShapeCollectionVisual(CompoundVisual):
         self.data[key]['mesh_colors'] = mesh_colors
 
     def remove(self, key, update=False):
-        del self.data[key]
+        self.data.pop(key)
         if update:
             self._update()
 
     def clear(self, update=False):
-        self.data = {}
+        self.data.clear()
         if update:
             self._update()
 
@@ -213,6 +212,7 @@ class ShapeCollectionVisual(CompoundVisual):
         # Updating mesh
         if len(mesh_vertices) > 0:
             set_state(polygon_offset_fill=False)
+            print "set mesh data", len(mesh_vertices)
             self._mesh.set_data(np.asarray(mesh_vertices), np.asarray(mesh_tris, dtype=np.uint32),
                                 face_colors=np.asarray(mesh_colors))
 
@@ -230,7 +230,7 @@ class ShapeCollectionVisual(CompoundVisual):
             self._line._changed['pos'] = True
             self._line.update()
 
-        self._line._bounds_changed()
+        # self._line._bounds_changed()
         self._mesh._bounds_changed()
         self._bounds_changed()