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How can I create a horizontal planar grid in Surfer?

You cannot grid a data file that does not have variation in the Z column. You can either add slight variation to the Z values in the data file (i.e. one point's Z value is different by 0.000001 from the other points), or you can create a horizontal grid using the Grids | New Grids | Function command.

 

For example:

  1. Click Grids | New Grid | Function.
  2. In the Grid Function dialog,
    1. Enter the X and Y Minimum and Maximum values you want for the grid.
    2. Set any Increment value you want. This is the spacing of the grid nodes. Since the grid is horizontal, this does not have to be a high resolution grid file.
    3. Enter the function Z=75, where 75 is whatever Z value you want for the horizontal plane.
    4. Give the grid a new name/location (if desired)
    5. Check Add grid as layer to: if you want to add the newly generated grid to the active project.
    6. If you checked the above option, you can also specify what type of layer you want to add to the project by setting the New layer type option.
  3. Click OK and the grid is created.

Surfer: using the Grid Functionality to create a planar surface grid
Enter the function where Z equals the Z value of the horizontal plane.

The horizontal grid is created with Grid Function and can be used to create maps.

 

Updated January 31, 2017

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