For custom dataset, how to determine the position of points where force is applied

[CAN-Lee]

Hi,

Thanks for your great work. I try to make some custom datasets.

For custom dataset, I would like to ask how to determine the position of the point where force is applied.

Take the alocasia as an example, the below boundary_conditions show the force is applied at the point of [1.3, 0.85, 1.28].

 "boundary_conditions": [
        {
            "type": "bounding_box"
        },
        {
            "type": "cuboid",
            "point": [0.95, 0.77, 0.65],
            "size": [0.1, 0.1, 0.1],
            "velocity": [0, 0, 0],
            "start_time": 0,
            "end_time": 1e3,
            "reset": 1
        },
        {
            "type": "particle_impulse",
            "force": [0.25, 0, 0],
            "point": [1.3, 0.85, 1.28],
            "num_dt": 1,
            "start_time": 0
        }
    ]

But when I visualize the point clouds of alocasia, it seems that the point of [1.3, 0.85, 1.28] is not around the surface of the alocasia. Would you mind giving more details about it?

Really appreciate you~
CAN

[zhuomanliu]

Hi,

The coordinate system in the config file is defined in the transformed points shifted to the center (1,1,1). For reference, you can use the code L302-L305 in simulation.py to save the transformed point cloud and verify the positions.