[gdal-dev] gdalbuilvrt problem

[Even Rouault]

Selon Fabrice LALLAURET - PSV <fabrice.lallauret at external.thalesgroup.com>:

> I try to use gdalbuilvrt  with images having different resolutions. I
> use it with argument -resolution highest and I find (I think) a bug.
>
> The highest resolution is set with these lines of code in gdalbuildvrt.cpp :
>
>                 else if (resolutionStrategy == HIGHEST_RESOLUTION)
>                 {
>                     we_res = MIN(we_res,
> psDatasetProperties[i].adfGeoTransform[GEOTRSFRM_WE_RES]);
>                     ns_res = MIN(ns_res,
> psDatasetProperties[i].adfGeoTransform[GEOTRSFRM_NS_RES]);
>                 }
> and MIN macro if define as :
>
> ../port/cpl_port.h:# define MIN(a,b) ((a<b) ? a : b)
>
> But if resolution is negative MIN(-15,-1) is -15 not -1. I am right ?

Good catch. Fixed by ticket http://trac.osgeo.org/gdal/ticket/3198

>
> Regards
>
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