CGAL users discussion list

["Fernando Cacciola" <>]

Hi Johan,

> Hello All,
>
> I followed the instructions on
> (http://acg.cs.tau.ac.il/cgal-at-tau/installing-cgal-and-related-programs-on-windows)
> for using Cgal (3.3.1) with Visual Studio Express 2008 using boost
> 1.35.00.  And it seems to work fine.
>
> However, if i compile and debug for example the straight skeleton demo
> program, it seems a lot slower than it was previously.
"Previously" is what compiler, cgal version, etc?

> It takes more
> than two minutes to calculate the inner skeleton for the complex5
> polygon (Vista, Core2Duo 
> ,
>  2gig ram).
I suppose you are using checked iterators and the secure scl right?
Try defining _SECURE_SCL=0 and _HAS_ITERATOR_DEBUGGING=0, making sure to do the 
same when building CGAL itself.

> If I compile and run
> in release mode it doesnt even want to calculate any skeleton.
> ("Straight skeleton construction failed")
*any* skeleton no matter which one, like within a simple rectangle?

HTH

Fernando Cacciola
GeometryFactory