[vtkusers] vtkPointSpriteMapper details

[John Biddiscombe]

Paul,


>
> which means it'll first decrement abortcount to -1 and keep on going
> down to -A_LOT.  it'll never check for abort.
>   

Well the truth is that I've never used the polyvertex cells so the abort 
code has never been used/tested. If you'd like to send me what you think 
the correct abort ceheck should be (or whatever suits you with a comment 
to justify it), I'll paste it in, commit it and say no more.

JB