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How do I create a block diagram in Surfer like the one shown on your web site and brochure?
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To create a solid block diagram, you will need to have grid files for each surface you want shown in the block.

1. Create a 3D surface map from one of the grid files by going to Map | New | 3D Surface.
2. Add the other grids as 3D surfaces by selecting the existing map and going to Map | Add | 3D Surface Layer.
3. Select a 3D Surface layer in the Object Manager.
4. In the Property Manager, on the General tab, enable the Show base option.
5. Click the Edit Base Properties button and specify a different fill color for each layer and click OK.
6. Repeat Steps 3-5 for each 3D surface layer.



For an example, please see attached GRD files and SRF file.  Grid | Math was used to add 150 to the Z values in Demogrid.grd to create the upper surface. Then Grid | Mosaic was used to adjust the grid minimum and maximum extents just slightly so that the grids are not the same. This is to alleviate the stitching problem (described at http://www.goldensoftware.com/activekb/questions/353).
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