Selon Christian Rapp <[email protected]>: > Hello altogether and happy new year, > > > I just started using the GDAL c++ interface. I want to create float32 > based GEoTiffs. This works quite well but in ArcMap they don't look that > good because Statistics are missing. > > So first of all I called GetStatistics() Method from a Standard > GDALDataset. This had no effect, at least ArcMap stilled complained > about missing statistics. Then I switched to GDALPamDataset and > GDALPamRasterBand and tried the same method again. Using the exiftool > from Phil Harvey I see the statistics were written in the GDALMetadata > section Even Esri recognizes this. Ok even better but why don't I get > this values in an external aux.xml file? > Right now I just call GetStatistics() right before GDALClose(). > > I also had a look at code of the gdalinfo tool. Because gdalinfo -stat > creates what I want. But I don't see anything what could help me.
If you want the statistics in a external .aux.xml file, open the dataset in GA_ReadOnly mode, call GetStatistics() and GDALClose() it. That's what gdalinfo does Ah, and no need to cast to GDALPamDataset/GDALPamRasterBand: just use GetStatistics() on the band object returned by GetRasterBand(), as GetStatistics() is a virtual method of GDALRasterBand(). And the GTiff driver extends GDALPamRasterBand, so the GetStatistics() implementation used will be the one of GDALPamRasterBand. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
