UE4Poly

This python module is meant to connect to an UE4 game which is running a MessagePack RPC Server for drawing Polygons. The UE4 MessagePack server is installed seperately as a plugin and be found here. This python client and UE4 plugin combination allows you to draw polygons into the environment.

Examples can be found in the examples folder.

How to use

Polygons have the same verbage as Shapely. Namely a Polygon has a required outer shell that is a closed LinearRing. Also a polgyon may have 0 or more LinearRing holes that are inside the polygon

import numpy as np
from ue4poly import UE4Poly
from ue4poly.types import DPCommand
def main():
    poly_client = UE4Poly(port=3000)
    poly_client.ping() # Just to make sure that commmand are being recieved

    # Construct a square that has side lenght 200
    shell_np = np.array([
            [0.0, 0.0, 0.0], 
            [200.0, 0.0, 0.0], 
            [200.0, 200.0, 0.0],
            [0.0, 200.0, 0.0]])

    # Flatten the to python list
    shell = shell_np.flatten().tolist()
    # Create an *optional* smaller square hole insize the square polygon
    hole = (shell_np * 0.25 + [50, 50, 0]).flatten().tolist()
    
    cmd = DPCommand(lifetime=5.0, shell=shell, holes=[hole],thickness=4.0)
    poly_client.draw_polygon(cmd)

if __name__ == "__main__":
    main()