On 10/23/2012 10:10 AM, Luciano La Sala wrote: > Dear QGIS experts, > > I am using QGIS V. 1.8.0. and I have a shapefile of Argentina which I need > to convert to raster. I looks as a pretty straightforward process, but along > the way I hit the following problem: > > 1) Once the vector file is loaded, I go to Raster >> Conversion >> Rasterize > (Vector to raster) > 2) I select the output file but the following message pops up: "The output > file doesn't exist. You must set up the output size to create it." > 3) I hit Ok and then I am left to decide what size do I want for the output > file. The default values are Width = 3000 and Height = 3000. > > So at this point my questions are: > > a) What are these values for width and height? What do they represent? After > conversion, I load the raster and under properties and metadata tab it says > that dimensions of raster are X: 3000 Y: 3000 Bands: 1, but I am not sure > what this means. Those values represent the number of pixels in the X and Y direction.
So if your original vector file represents 10km by 10km then each pixel represents 3.33333m. > Thank you in advance for your help. > > Luciano > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
