[GRASS-user] newbie question - vector/raster processing

[andrew haywood]

Dear All,

I am having some problems working out how to analyse some data.

I have created a segmented vector file (through region growing - image
segmentation using the terralib library) which I hope to represents
different forest classes. I have classified the segmented image file into 10
unknown classes (10 000 polygons with 10 different classes) based on some
recent imagery data. The main aim of this was to improve the boundary of the
forest classes.

I have then imported the classified vector file into grass. I now would like
to populate the forest class by intersected the polygons in my new vector
map with an existing forest class map and take the most common forest type
from the old map. I was thinking i could rasterise the old forest class map
and some how count the number of cells for each class within each polygon
and some how choose the most common class.

Any suggestions on how to do this would be much appreciated.

Andrew
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/grass-user/attachments/20071016/fd2c1f68/attachment.html