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I am trying to build a Model in ModelBuilder to create two different process raster datasets:

  1. One set is to define a raster dataset to set a WGS 84 projection; and then
  2. the second set is to take the define projection raster datasets to reprojection to NAD UTM 83 to a new folder.

Do I need to create a variable to copy from a define projection raster set and then Reprojection raster dataset to NAD UTM 83?

What is the correct variable tool should I use to perform to connect them?

BTW, I have to do this with a lot of raster datasets and do the same thing.

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Can you perhaps edit your Question to explain what you mean by "two groups"? A ModelBuilder screenshot may well help me to picture what you are describing. – PolyGeo Nov 20 '13 at 19:35
Is the issue here perhaps how you create names during this process? If so, then you probably need to just look at Iterate Rasters and Parse Path. – PolyGeo Nov 21 '13 at 5:03
Have you got access to FME? It is probably easier to use GtransReproject there. – Martin Nov 21 '13 at 8:44
Martin, Are you talking about FME a separate program or is it within ArcGIS 10.1 Extension ? – PROBERT Nov 21 '13 at 15:09
up vote 0 down vote accepted

I don't think you need to create "standalone" variables to hold them. In your model, why can't you just expose the input and output coordinate systems as model parameter's? See Creating model parameters.

Try this:

  • Right-click on the "Project Raster" box and choose Make Variable-> From Parameter-> Output Coordinate System.
  • Then r-click on the parameter circle and choose "Model Parameter".
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