[GIS] Convert .shp into .tif using QGIS

coordinate systemqgisshapefile

I have some .tif world image with 1km x 1km spatial resolution. I also have .shp file with 2km x 2km grid data. I need to convert .shp file into .tif in the same spatial resolution and projection as .tif world image.

Is it possible to process in QGIS?

Best Answer

You can try the following:

rasterize your shape : Raster>Conversion>Rasterize
save as GTiff. There you can check if proj and resolution are ok

Related Solutions

[GIS] Convert a Tif raster file to vector shp file in QGIS

It sounds as if your raster needs to be classified, which you can do using the experimental Sextante toolbox.

Each pixel in a one-band raster has a value attached to it and using GRASS v.reclass from the Sextante toolbox allows values to be grouped into classes. Say for example I have a raster with values of between 0 and 1400; using v.reclass I could group the values into seven classes, using this 'rules' text file:

0 thru 200 = 1
201 thru 400 = 2
401 thru 600 = 3
601 thru 800 = 4
801 thru 1000 = 5
1001 thru 1200 = 6
1201 thru 1400 = 7

The output would be a new raster having a value of 1 for all of the values of between 0 and 200 in the original raster, of 2 for all of the values between 201 and 400 in the original raster, and so on.

Once classified, the raster could then be polygonised.

Nick.

[GIS] Convert .asc format into shapefile

You can try the GDAL utility gdal_polygonize.py. For example, to create a shapefile output.shp from input.asc:

gdal_polygonize.py -f "ESRI Shapefile" input.asc output.shp

Prerequisites: GDAL, Python and GDAL Python bindings.

But... Are you sure that SHP is the right format in order to work with such huge data?

Best Answer

Related Solutions

[GIS] Convert a Tif raster file to vector shp file in QGIS

[GIS] Convert .asc format into shapefile

Related Question