[Qgis-developer] intersect error

Carson Farmer carson.farmer at gmail.com
Mon Jan 26 17:17:02 EST 2009

> I've took your code, modified it slightly and commited in r10026 :-)
> Not sure what was the reason of your problems (I've modified it to my
> preferences before trying it out). One thing worth mentioning -
> casting from const to non-const isn't a good idea as the const
> modifier usually has some reason, e.g. when constructing a geometry
> with QgsGeometry::fromGeos() you should pass a new instance. Passing
> an existing instance will probably cause havoc when deleting the
> geometries (because both original geometry collection and its part
> will try to delete the same geos geometry).
> Looks like it's working now..
I'm sure if we could clone you, and put all those clones to work on 
QGIS, it would be the greatest software ever written!



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