Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

I am trying to extract values from my rasters : slope, aspect, landcover etc. for my animals group locations. I used Spatial analyst>Extract multi values to points but when I look in my attribute table after the process the results are the same for all the points and make no sence : e.g. 0 for a landcover, -3x10-38 for a slope etc.

Do you have an idea what I am doing wrong? I am working with ArcGIS 10

Thank you

share|improve this question
    
Are the points and rasters in the same coordinate system? –  ccn Apr 15 '13 at 3:32
    
Yes they are... –  Elena Spark Apr 15 '13 at 14:33
    
This tool has always been buggy for me. You could create a model that chains together multiple instances of the "extract value by point tool" –  Günther Oct 28 '13 at 16:48
add comment

1 Answer

The tool you are looking for is the "Sample"(Spatial analyst>Extraction>Sample). Add all your rasters, then the shape file with the locations.

share|improve this answer
    
Thank you! Now if instead of points I have buffers of different size, can I use this tool too? I tried using GME intersect polygon/raster but I get results as if I had no values everywhere on my raster... –  Elena Spark Apr 14 '13 at 18:53
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.