pyViz3D: A lightweight point cloud visualization library in python

pyViz3D is a lightweight OpenGL-based Point Cloud visualization library, which is primarly designed for research and debug purposes.

Utilization

from viz3d.window import OpenGLWindow 
from viz3d.engineprocess import *

window = OpenGLWindow()
window.init()               # Starts the engine in a new process 

pc = np.random.randn(100, 3).astype(np.float32)
color = np.random.rand(100, 3).astype(np.float32)

window.set_pointcloud(0, pc, color)  # Sets a colored point cloud model for id=0 

... 

window.close(force=True)                       # Closes the window (forcing the process to close)

Navigation in the Window

The user can navigate in the window with a First Person Camera, which has the following key binding:

Key Pressed	Action *(IF THE CAMERA IS ACTIVATED)
Z	move Forward
S	move Backward
Q	move Left
D	move Right
R	move Up
F	move Down
A	rotate clockwise in roll
E	rotate counter-clockwise in roll
SHIFT	Accelerate camera motion x 10, while the key is pressed

Mouse Action	Action
Right Click	Activate/Deactivate the Camera
Move the cursor away from the center	yaw, pitch orientation changes IF THE CAMERA IS ACTIVATED

To Install the pyViz3d as a python module:

pip install .

TODOS

• Switch from pygame to glfw
• Improve the camera
• Improve the documentation
• Robustify the suppression of the engine process if the origin process dies unexpectedly