Update buffer attribute example

Author: vidartf

examples/BufferAttributes and BufferGeometry.ipynb

@@ -108,13 +108,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "37642eda6faf4d1091b88bca6647ad87",
+       "model_id": "e8e9822fd24d4155b35d135128267f4f",
        "version_major": "2",
        "version_minor": "0"
       },
@@ -132,42 +132,73 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "vertices.array = np.array([\n",
+    "        [-1.0, -1.0,  1.0],\n",
+    "        [ 2.0, -2.0,  2.0],\n",
+    "        [ 1.0,  1.0,  1.0],\n",
+    "        \n",
+    "        [ 1.0,  1.0,  1.0],\n",
+    "        [-1.0,  1.0,  1.0],\n",
+    "        [-1.0, -1.0,  1.0],\n",
+    "    ])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "geometry.attributes['position'] = vertices"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "float"
+       "{'position': BufferAttribute(array=array([[-1., -1.,  1.],\n",
+       "        [ 2., -2.,  2.],\n",
+       "        [ 1.,  1.,  1.],\n",
+       "        [ 1.,  1.,  1.],\n",
+       "        [-1.,  1.,  1.],\n",
+       "        [-1., -1.,  1.]], dtype=float32), count=6, normalized=False, version=0)}"
       ]
      },
-     "execution_count": 10,
+     "execution_count": 19,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "np.float"
+    "geometry.attributes"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 23,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "numpy.float64"
+       "\"PlainBufferGeometry(attributes={'position': BufferAttribute(array=array([[-1., -1.,  1.],\\n       [ 2., -2.,  2.],\\n       [ 1.,  1.,  1.],\\n       [ 1.,  1.,  1.],\\n       [-1.,  1.,  1.],\\n       [-1., -1.,  1.]], dtype=float32), count=6, normalized=False, version=0)}, type='BufferGeometry')\""
       ]
      },
-     "execution_count": 11,
+     "execution_count": 23,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "np.float64"
+    "repr(geometry)"
    ]
   },
   {