Title: Invisible components affect bounding box
Submitter: Emden R. Gansner
Date: Fri Feb 21 11:24:03 EST 2003
If a node is invisible, it is still used to compute the bounding box.
This leads to extra space, for example, when included in documents since
the bounding box is used by tools such as latex to determine how much
area to reserve.
Fix: Ignore invisible components when computing bounding box