gis - How to read geographical raster in c# -

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i looking "clean" way load rasters c# code. raster mean (or @ least some) xyz file qgis or arcgis able load: .tif, .rrd ...

i using nettopologysuite. library works shapefiles, makes me think there raster reader. have been trying focus research under nettopologysuite.io namespace, contains quite few readers.

i have tagged post nettopologysuite hoping c#-savvy knows bit more me particular library.

i used libtiff.net .tif, had no requirement other format. upperleft , bottomright properties used position image on world map. don't deal model transform case because it's complicated , - again - no requirement @ moment.

        var imagestreamsource = new filestream(filename, filemode.open, fileaccess.read, fileshare.read);         var decoder = new tiffbitmapdecoder(imagestreamsource, bitmapcreateoptions.preservepixelformat, bitmapcacheoption.default);         var bitmapsource = decoder.frames[0];          // draw image         image = bitmapsource.tobitmap();          using (var tiff = tiff.open(filename, "r"))         {             height = tiff.getfield(tifftag.imagelength)[0].toint();             width = tiff.getfield(tifftag.imagewidth)[0].toint();              // see http://www.remotesensing.org/geotiff/spec/geotiff2.6.html#2.6.1              var modelpixelscaletag = tiff.getfield(tifftag.geotiff_modelpixelscaletag);             var modeltiepointtag = tiff.getfield(tifftag.geotiff_modeltiepointtag);             //var modeltransformtag = tiff.getfield(tifftag.geotiff_modeltransformationtag);              var modelpixelscale = modelpixelscaletag[1].getbytes();             var scalex = bitconverter.todouble(modelpixelscale, 0);             var scaley = bitconverter.todouble(modelpixelscale, 8) * -1;              if (modeltiepointtag != null)             {                 var modeltransformation = modeltiepointtag[1].getbytes();                 var originlon = bitconverter.todouble(modeltransformation, 24);                 var originlat = bitconverter.todouble(modeltransformation, 32);                  // origin center of pixel, offset                 var startlat = originlat + (scaley / 2.0);                 var startlon = originlon + (scalex / 2.0);                  upperleft = new position(startlat, startlon);                 bottomright = new position(startlat + scaley * height, startlon + scalex * width);             }             //else if (modeltransformtag != null)             //{             // complicated             //}             else             {                 throw new exception("couldn't understand tiff format");             }         }

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