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How can I create a horizontal planar grid in Surfer?

It is not possible to create a grid from a data file that does not have variation in the Z column. To create a horizontal planr grid, 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 create a horizontal grid using the Grids | New Grid | Function command.

 

For example:

  1. Click Grids | New Grid | Function.
  2. In the Grid Function dialog,
    1. Enter the desired X and Y Minimum and Maximum values for the grid.
    2. Set any desired Increment value. 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 the Z value 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 the above option is checked, you can also specify what type of map 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.

Surfer 3D Surface map with an added function grid at Z=75

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

 

Updated September 11, 2017

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