Re: Waiting for a call, xeyes, and vector fields

[Dave Hoover <spamless4 iasun2 epfl ch>]

Awesome property dialog boxes, Lars.  That was quick.  I thought you 
were busy...

Thanks for giving line.c a default gap dialog box as well.  That will be 
convenient.

I just ran across a simple way to create an approximate center 
connection point for arbitrary objects: Draw a line with fractional 
start/end gaps=0.5 between two object corners.  Then you can use the 
line's center connection point as if it were an object connection point. 
 It's almost possible to do this with the traditional gapless line by 
drawing a white line or a zero width line between object corners.  But 
the white line could become visible in certain situations, and 
zero-width lines are not quite zero width.  They remain slightly 
visible.  The gapped line, however, appears to be completely absent (as 
long as fractional_start_gap + fractional_end_gap = 1).

And another advantage is if you choose other fractional gaps like 
(0.3,0.7) or (-2,3), you can fine-tune the position of your connection 
point.  It's even possible to use two gapped lines to create a 
connection point for an object anywhere in the x-y plane.  The only 
problem is that it is a bit difficult to find and edit zero-length lines 
once you have them!  See example.

Dave.

piston.dia.gz