🚀 go-pugleaf

Has anyone out there used Intellidraw?  It almost does some of the
thing I want but

  (1) it grows awesomely slow with a few objects and a few
equal-length constraints (links).
  (2) with equal-length constraints, when you rotate one object around
another, suddenly a link flips to a wrong quadrant and the diagram
appears to become disconnected.  Arrgh.
  (3) and sometimes when yu move an object in such a
length-constrained drawing, the constraint-satisfaction program goes
wild and puts some of the objects half a mile off the screen!

 The last time I had this trouble was around 1960 when Ivan Sutherland
was debugging Sketchpad.  His constraint program had some bugs, too,
but wow, you'd think the state-of-that-art would have improved by now.H|References: <1992Sep8.230029.24204@csus.edu> <tl4y2dn@rpi.edu>
j3xnce been distributed on quite so large a scale?  I mention this
only because it's sometimes hard to find a "classic" soft drink, and
there is a small minority of us who find that particular dipeptide to
have a rather nasty aftertaste.