Add files via upload

center.py

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+import open3d as o3d
+import numpy as np
+
+if __name__ == "__main__":
+    file_path = 'conferenceRoom_1.xyzrgb'
+    pcd = o3d.io.read_point_cloud(file_path)
+    vis = o3d.visualization.VisualizerWithEditing()
+    # color bug fixing xyzrgb (float rgb?)
+    if np.max(pcd.colors) > 1:
+        pcd.colors = o3d.utility.Vector3dVector(np.asarray(pcd.colors)/255)
+    pcd.points = o3d.utility.Vector3dVector(
+        pcd.points - np.mean(pcd.points, axis=0, keepdims=True))
+    o3d.io.write_point_cloud("center.ply", pcd, write_ascii=True)

cube.pts

@@ -0,0 +1,9 @@
+8
+0 0 0
+1 0 0
+1 1 0
+0 1 0
+0 0 1
+1 0 1
+1 1 1
+0 1 1

norm.py

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+import open3d as o3d
+import numpy as np
+
+if __name__ == "__main__":
+    file_path = 'conferenceRoom_1.xyzrgb'
+    # norm_type = 'coord_max'
+    norm_type = 'abs_max'
+    pcd = o3d.io.read_point_cloud(file_path)
+    vis = o3d.visualization.VisualizerWithEditing()
+    # color bug fixing xyzrgb (float rgb?)
+    if np.max(pcd.colors) > 1:
+        pcd.colors = o3d.utility.Vector3dVector(np.asarray(pcd.colors)/255)
+    points_min = np.min(pcd.points, axis=0)
+    points_ptp = np.ptp(pcd.points, axis=0)  # max - min
+    print(points_min, points_ptp)
+    if norm_type == 'coord_max':
+        pcd.points = o3d.utility.Vector3dVector(
+            (pcd.points - points_min) / points_ptp)
+    else:
+        pcd.points = o3d.utility.Vector3dVector(
+            (pcd.points - points_min) / max(points_ptp))
+    print(np.min(pcd.points), np.max(pcd.points))
+    o3d.io.write_point_cloud("norm.ply", pcd, write_ascii=True)