[fdo-users] How does FDO handle invalid fgf geometries?

[Traian Stanev]

Hi guys,

I think it also depends on the specific provider, not just on what FDO does.

Traian


> -----Original Message-----
> From: fdo-users-bounces at lists.osgeo.org [mailto:fdo-users-
> bounces at lists.osgeo.org] On Behalf Of Mateusz Loskot
> Sent: Thursday, August 21, 2008 10:51 AM
> To: FDO Users Mail List
> Subject: Re: [fdo-users] How does FDO handle invalid fgf geometries?
>
> Jackie Ng wrote:
> > Hi All,
> >
> > How does FDO handle invalid FGF binary data?
>
> Jackie,
>
>  From my experience, I've observed that FDO does not strictly
> validate FGF/WKB input on geometry creation.
> Actually, GeometryFactory checks if WKB stream has minimal length of 9
> bytes and it does not prevent to create geometry from bytes stream of
> garbage.
>
> Here is a small test of valid and invalid WKB input (see main
> function):
>
> http://mateusz.loskot.net/tmp/fdo/test_geometry_factory.cpp.html
>
> This is the result of 3 test cases included in the test:
>
> Expected WKT: POINT(15.123 21.456)
> Output WKT  : POINT (-7.84591113289983e+298 0)
>
> Expected WKT: POINT(15.123 21.456)
> Output WKT  : POINT (15.123 21.456)
>
> *** FDO Error:
>    *** (.\Src\Geometry\Fgf\GeometryFactory.cpp: 568)
> FDO_1_INVALID_INPUT_ON_CLASS_CREATION
>
>
> Best regards,
> --
> Mateusz Loskot, http://mateusz.loskot.net
> Charter Member of OSGeo, http://osgeo.org
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