10-06-2025, 08:47 AM
(This post was last modified: 10-06-2025, 09:15 AM by josemendez.)
(10-06-2025, 08:31 AM)alicecatalano Wrote: this is always false, even when visually i can see it happens. Morevoer, I used the same code structure that i used to check if the particle were near enoguh to a grasping point to be grasped. and i don't understand why in that case the output was right while now it isn't. I am sure I am missing something but I can't wrap my head around it.
Keep in mind that all solver data is expressed in the solver's local space. This means particle positions are unchanged when the solver moves around:
Quote:Each ObiSolver has a list for each one of these properties (solver.positions, solver.principalRadii, solver.velocities, solver.colors and so on), that stores the particle data for all actors currently being simulated by the solver. All spatial properties (positions, orientations, velocities, vorticities, etc) are expressed in the solver's local space.
So if crossArea.bounds is expressed in world space, your code won't work.
You must either convert the bounds to solver space, or convert the positions to world space.