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Grid a time surface from seismic interpretation and no faults.

1. Display interpretation lines from 02_Time data > Interpretation lines > 02BasePliocene.
2. Apply the command Simple points and lines gridding
3. Click Update window to get the project window as the grid window.
4. Set x and y increment to 500.

   Info
   title Grid window for Course B1
   xmin = -188000, xmax = -47500; ymin = 7864500, ymax = 7959000 Using grid increment 500 gives as size of grid: number in rows: 282 , number in columns: 190 It is a relatively small grid, but useful in a course and the size of the project is kept reasonable low.

5. Use gridding algorithm Parabolic (default).
6. Check in for *Use two steps gridding". Grid increment will be automatic calculated if blank.
7. Set moving average as gridding algorithm for 1. step.
8. Click Execute. The result will be written to the same folder.
9. Click OK and save the panel with all parameters.
10. Create a new folder for interpretation grids and cut/paste the result grid into this folder.
11. Display the result as shown below.

    Info
    title Displaying color legend
    The color legend is often displayed with the shell command cco. In the example below the following procedure was used: Screen in 2D mode. Click a cursor point at lower right. Use the shell command: cco rev cur col bla tit Time. Look at the reference manual if necessary.