In model space MVSETUP draws the sheet border at the drawing scale
(scale factor, paper width and height) and zooms to it, or switches to
a layout. On a layout it creates viewports in a bounding area (a single
one, a 2x2 engineering set of top/front/right/isometric views, or an
array with spacing), deletes picked objects, and scales picked
viewports to a paper/model unit ratio.
A viewport's fit to the model now measures the model along the
viewport's own view direction, so side and isometric views frame it
too.
Refs #1501
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Karim Jerbi