Re: [Qgis-user] How to make a raster or grid from a shapefile
I want to make a grid or raster from a land us / land cover shapefile, a polygon with 9 categories. I want this to model a species distribution, based on animal ocurrence. You can also use menu Raster - Rasterize, unfortunately you first need an empty raster to burn the polygons. It calls a GDAL utility program: http://www.gdal.org/gdal_rasterize.html From GDAL 1.8 it will create raster files from scratch. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] How to make a raster or grid from a shapefile
Dnia poniedziałek 01 listopada 2010 o 05:06:38 Tom napisał(a): Why would one want to convert from vector(shape) to raster? Tom Because most landscape and ecological analyses work on raster data. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] How to make a raster or grid from a shapefile
Thank you very much Borys. Is there any example in a tutorial on the use of Rasterize? Best, Manuel On 01/11/2010 03:30 a.m., Borys Jurgiel wrote: I want to make a grid or raster from a land us / land cover shapefile, a polygon with 9 categories. I want this to model a species distribution, based on animal ocurrence. You can also use menu Raster - Rasterize, unfortunately you first need an empty raster to burn the polygons. It calls a GDAL utility program: http://www.gdal.org/gdal_rasterize.html From GDAL 1.8 it will create raster files from scratch. -- *Manuel Spínola, Ph.D.* Instituto Internacional en Conservación y Manejo de Vida Silvestre Universidad Nacional Apartado 1350-3000 Heredia COSTA RICA mspin...@una.ac.cr mspinol...@gmail.com Teléfono: (506) 2277-3598 Fax: (506) 2237-7036 Personal website: Lobito de río https://sites.google.com/site/lobitoderio/ Institutional website: ICOMVIS http://www.icomvis.una.ac.cr/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] How to make a raster or grid from a shapefile
Dnia poniedziałek 01 listopada 2010 o 12:23:30 Manuel Spínola napisał(a): Thank you very much Borys. Is there any example in a tutorial on the use of Rasterize? Unfortunately I don't know any and believe there's nothing like that, as there's no simple way to do it. You can follow this way: 1. Use Interpolation plugin to create a raster file based on your vector (I suppose the values will be interpolated among polygon centroids) 2. Use RasterCalc to remove values from it. You can e.g. multiply it by 0: [your_rast...@1 * 0 3. Now use your empty raster in the Raster-Rasterize ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] labelling
Hi all, Why the Layer/Labeling is not directly accessible via the properties of the layer ? This is confusing to me. Ghislain ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] labelling
Hi Ghislain, You are correct - this is confusing. It is my understanding that the layer settings will eventually be merged back into the layer properties. There are historic reasons: it started as a separate plugin, in parallel with the old label engine. Probably something for QGIS 1.7 or whatever follows QGIS 1.6. Andreas On Mon, November 1, 2010 2:09 pm, Ghislain Picard wrote: Hi all, Why the Layer/Labeling is not directly accessible via the properties of the layer ? This is confusing to me. Ghislain ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user -- Andreas Neumann http://www.carto.net/neumann/ http://www.svgopen.org/ ___ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
