Pero65

Calculating raster class areas inside polygon feature dataset

Discussion created by Pero65 on Nov 6, 2012
Hi!

I have raster dataset, grid with cell size 1000 x 1000 m, total area of 54 km2. Raster is reclassified into 6 classes. Also, I have one polygon vector layer (and only one feature) as research area. How can I get areas in meters (or cells) calculated as double or float values of each raster class inside my polygon? I tried with Zonal Toolset (Spatial Analyst) and Thematic Raster Summary Tool (Hawth's Analysis Tools for ArcGIS) but with no luck. I would like to have table like Hawth's Tool has, with six new fields (for six classes) filled with values of exact area in km2 inside polygon. Unfortunately, this tool only counts cells of each class inside polygon and fills attribute table with integer numbers.

Thanks!

Dario

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