I want to do an overlay analysis to find most suitable locations to live in an area.
My criteria are road network, water lines, hospital locations, and schools. My steps are:
- Convert all layers to raster using Rasterize
- Apply Proximity (raster distance) tool
- Apply Ordered Weighted Averaging tool to get the final map.
But it does not display the result due to the error: "The above files could not be opened, which probably indicates that they were not correctly produced by the executed algorithm." I tried this many times but result was same.
I want to know what the wrong with my method or if there is another Vector or Raster based method to perform this type of analysis using QGIS. I am using QGIS 2.2 Valmiera.