fix: int() truncates negative pixel coordinates toward zero

[andrewwhitecdw]

This PR addresses the following issue in examples/occupancy_map.py: int() truncates negative pixel coordinates toward zero.

Changes

• examples/occupancy_map.py: int() truncates negative pixel coordinates toward zero.

Details

Before:

        x_px = int(pixel[0, 0])
        y_px = int(pixel[0, 1])

After:

        x_px = int(np.floor(pixel[0, 0]))
        y_px = int(np.floor(pixel[0, 1]))