[GRASS-user] Raster attributes

2010-03-01 Thread Ned Horning
Is it possible to link a raster image to a set of attributes stored in a database using GRASS? I am working with the Harmonized World Soil Database which consist of an image and a database that holds a set of soil attributes. These attributes can be linked/joined to the image since the pixel v

Re: [GRASS-user] Raster attributes

2010-03-01 Thread Hamish
Ned Horning wrote: > Is it possible to link a raster image > to a set of attributes stored in a database using GRASS? categorical (CELL) raster maps have very basic support via the r.category module; the category value of the cell can hold the key column ID. for something more advanced see: htt

Re: [GRASS-user] Raster attributes

2010-03-02 Thread Ned Horning
Hamish, Thanks for the tips. Doing the raster to vector and then vector to raster conversion probably won't work so well for this application. The image is quite large and I don't want to risk modifying the data in the conversion process. I'll see what I can do with regard to writing a scrip