Objects bounding box

I am using an objects bounding box to place a figure in one of 4 corners.
This works fine when object is rotated 90 degrees or 0 degrees.

But how can find these cornes when object i rotated between 0 and 90?
Can i still use bounding box or another method to calculated these 4
corners?

Birger

 

since "the corners are returned in WCS coordinates with the box edges parallel to the WCS X, Y, and Z axes" (from autocad help), you have to translate your figure (or a copy of it) to origin (0,0,0) with the main edge of your figure parallel to the wcs X axis

in 3d you needs the transformation matrix associated with your figure/3dsolid, then you have to inverse it (i.e. to get the transpose matrix) and to apply it to your figure via .TransformBy; at this point the volume is translated and rotated to the right position for .GetBoundingBox;

if you aren't able to calculate the transformationmatrix from scratch, you can set a new UCS on your figure and get the transformation matrix from it

in 2d you can perform simple transformations via .move and .rotate in order to get your figure in the right position for .GetBoundingBox