Generate triangulated tower

Hi,

I'd like to create a tower which is 3d triangulated (see linked pictures). The global shape would be decided by defined boxes, and the algorithm would generate a structure that follow at its best the boxes, while being included in the defined boxes.

The linked model show a regular tower shape with no modification, so I'd like to know how boxes can influence this shape, keeping the right triangular angles.

Thank you,

Kindly,