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I am also in need of an update for ArcHydro that can be used in ArcGIS 10.1. I just tried to install using the latest, that I could find, ArcHydro installer and got an error saying that ArcGIS 10 wasn't installed on my system. I tried downloading from the FTP site and the website (http://resources.arcgis.com/content/hydro/surface-water/about) with no success. TIA, Paul
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07-10-2012
10:19 AM
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Darlene, I believe the tool you are looking for is Reclassify. This tool is only available if you the 3D Analyst extension. You would launch this tool and add your raster in the 'Input raster' field. On the left you would see the current values of your raster. In the right column you would change the "New values" for your current value of 0 to NoData so it would be something like the attached JPG. If you don't have the 3D Analyst I think this can be done with the Raster Calculator (Spatial Analyst extension) but I can't remember how off the top of my head. Added in edit: I just found out that you can exclude values when using the "Copy Raster" tool. Just enter the value you want to get rid of, in this case 0 (zero) in the 'NoData Value (optional)' field.
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05-21-2012
09:25 AM
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Julia & Prasanta, I am including this post so people searching for this problem can know that the solution offered seems to work. Thanks Prasanta for the tip! I think this is the first time I have tried to use the reclassify tools in ArcGIS 10 so it comes as a surprise that they don't seem to be working. I have a raster that I am trying to reclassify to exclude 0 (zero) values. I launch the Reclassify tool, add the Raster (.img) I see that there should be 7 values but when I run the tool I get a raster with 15 values. I tried Prasanta's advice and selected the "Change missing values to NoData (optional)" box and that seemed to do the trick. I would like to know why this is necessary though as I don't recall ever having to do this in the past.
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05-21-2012
09:06 AM
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I first got this error message on Oct 19 while trying to access the 'Imagery' data from the 'Online Resource Center' through the 'File' menu in Argis (ArcInfo) 9.3 I had no problems on the next day but now I am getting the error message. The other data seems to work. I added the 'World Street Map' successfully.
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10-21-2010
12:41 PM
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