Computing the Absolute Values of Grid Nodes

RockWorks | Utilities | Grid | Math | Absolute

Use this program to read an existing grid model (.RwGrd file) and translate grid node values to their absolute values (e.g. positive values) and store the resulting nodes in a new grid model.

Menu Options
Step-by-Step Summary

Menu Options

• Input Columns:  If you request plotting of 2D map symbols (below) AND if you have data loaded into the Utilities datasheet, you can use these prompts (along the left edge of the Options window) to specify the X and Y locations for the map symbols. 
  ! If you don't plot map symbols, these will be ignored.
  • X (Easting): Click to the right to select the name of the column containing the X or Easting  coordinates.
  • Y (Northing): Click to the right to select the name of the column containing the Y or Northing coordinates.
• Input (Grid) Model: Click to the right to browse for the name of the existing grid model (.RwGrd file) whose nodes are to be converted to absolute values.
• Output (Grid) Model: Click to the right to enter the name to be assigned to the new grid model that will be created, resulting from converting the nodes of the input model to their absolute values.
• Create 2-Dimensional Grid Diagram: Insert a check in this check-box if you want to display the output grid as a 2D map at this time.  Expand this heading to set up the 2D map layers (bitmap, symbols, labels, line contours, color-filled contours, labeled cells, and/or map border).
• Create 3-Dimensional Grid Diagram: Insert a check in this check-box if you want to display the output grid as a 3D surface.  Expand this heading to set up the 3D map layers (flat surface, Boolean colors, perimeter, reference cage).  You can request both a 2D and 3D representation of the grid model.
• Create Grid Statistics Report: Insert a check here if you want to see a report summarizing the output grid. 
  • Include Standard Deviation:  Check this box if you want the report to include standard deviation.
  • Include Directional Analysis:  Check this box to include slope, aspect, and strike computations. Be warned that these can take a few moments for large grid models.

Step-by-Step Summary

1. Access the RockWorks Utilities program tab so that you can see the Grid menu.
2. If you'll be creating a 2D map with sample location (well) symbols, you can use the File | Open option to open the .RwDat file containing the X and Y location coordinates for the map symbols.
3. Select the Grid | Math | Absolute Value menu option. 
4. Enter the requested menu settings, described above.
5. Click on the Process button to continue. 

The program will load the input grid file, compute the absolute value of each node's Z-value, storing the new node values in a new grid file on disk under the output file name you selected. 

The requested diagram(s) will be displayed in a RockPlot2D tab and/or RockPlot3D tab in the Options window.   If you requested a statistics report, it will be displayed in a Text Tab in the Options window.

6. You can adjust any of the settings in the Options window and then click the Process button again to regenerate the diagram(s).
   ! Each time you click the Process button, the existing display(s) will be replaced. 
   
   
7. View / save / manipulate / export / print the diagram in the RockPlot2D or RockPlot3D window. 
   
   

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