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h4. Grid a time surface from seismic interpretation and closed stick faults.
Display
 
# Display *02_Time data > Faults > 07SilurianFaultInt_Polygons*. This is how the fault polygons comes from *Kingdom*. They must be edited.

# Use *Edit points and lines* to remove the _blobs_. See [art:Case study - Gridding of seismic interpretation data with faults].

# The correct edited fault lines are in *02_Time data > Faults > CorrectedClosedFaults*. Use this if you don't have time to complete the editing.

{tip
:title
=Tips when editing fault lines with _blobs_
} 
* To remove the _blobs_ just delete the two extra points in the _blobs
.
  • Apply the command Gridding > Gridding points, lines and faults and activate it on the proper interpretation lines.
  • Click Use active window to get the project window into the grid window.
  • Set the x and y increment to 500. Click Adjust to Increment to secure that the grid window is adjusted to the increments. If the grid window changes update the project window in Project Settings.
    _.
    {tip}
    # Apply the command *Gridding > Gridding points, lines and faults* and activate it on the proper interpretation lines.
    * Don't alter type of input data (under development). Use default: *Single points*.
    * Click *Use active window* to get the _project window_ into the _grid window_.
    * Set the x and y _increment_ to 500. Click *Adjust to Increment* to secure that the grid window is adjusted to the increments. If the grid window changes update the _project window_ in *Project Settings*. It is an recommended that the _project window_ and _grid window_ are equal and adjusted to the grid incrments.
    * Click *Calculate* to get number of elements in rows and columns: *282 x 190*
    *
    * Go to the *Fault Input* tab.
    * Check in *Closed stick faults* and browse in: *{Course B1} / {02_Time data} Faults CorrectedClosedFaults*
    * Clik *Test* at bottom to do the blanking test. The fault polygon should be filled inside. No lines outside.
    *
    * Go to the *Grid options* tab.
    * Check in *Use reference grid or outline* and browse in: *{Course B1} / 01_Cultural Boundary border_line*
    
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    Seismic 2D sections and navigation lines

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    Detail of seismic and interpretatin lines