Recent content by g9icy

  1. G

    A problem with rotational dynamics

    Thanks everyone that helped me on this. Once I realized r = force-center_of_mass everything fit into place and all the equations finally made sense. I now have an excellent system whereby the objects rotate (and transform) based entirely on where forces hit it, as it should be. Thanks...
  2. G

    A problem with rotational dynamics

    I always steered away from using the cross product as I'm working in 2d at the moment, but I will work on what I have soon and report on my progress. (i'm in work atm :)) Thanks for you help.
  3. G

    A problem with rotational dynamics

    Thank you for your help. When referring to the r and F vectors, I understand that you mean the vectors of the radius (from the center of mass to the point of collision) and Force. However, I'm unsure what qualifies as "r" and "F" in my code. My failure of understanding is not in the...
  4. G

    A problem with rotational dynamics

    Thanks for the reply. The equation: rFsin0 is definitely what I needed. Now I'm having a bit of an issue with the vectors involved with calculating theta. In my app, all vectors are defined in component form. Say I have my rectangular object at (its center of mass, that is): position.x...
  5. G

    A problem with rotational dynamics

    Greets all, I'm attempting to build a small physics engine that manages linear and angular forces. Please bear with me while I explain the problem I'm having. Linear forces so far have not been an issue at all, however rotational forces are rather confusing. I'm using Chris Hecker's rigid...
Back
Top