Convert Waste Thickness to a Grid Model

RockWorks | ModOps | Solid | Extract Grids | Solid -> Total Waste Grid

This program is used to translate a Boolean solid model file representing "ore" versus "not-ore" into a 2-dimensional grid file that represents total overburden ("not-ore") thickness. The resulting grid file can be illustrated as a contour map, 3D surface, etc. This includes a grid filter to remove above-ground nodes from computation.

Feature level: RockWorks Basic and higher

Menu Options
Step-by-Step Summary

Menu Options

• Input/Output:
  • Input
    • Surface Grid: Click to the right to browse for the name of the existing grid model that represents the ground surface. This will be used to exclude above-ground nodes from the thickness computations.
      ! This grid model must have the same dimensions and number of nodes in the X and Y directions as the input Boolean solid model.
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    • Boolean Ore/Waste Solid Model: Click to the right to browse for the name of the existing RockWorks solid model (.RwMod file) that the program is to read, containing the "ore" versus "not-ore" voxel values (values of "1" versus "0", respectively).
      ! This must be a Boolean model, not a real number (assay, concentration) model. See the Applying a Boolean Filter to a Solid Model option for information.
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  • Output Grid: Enter the name to assign to the new grid file that the program will create. This real number grid model will represent the total thickness of the overburden ("not-ore" or "waste") nodes within the input solid model file.
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• 2D Grid Map: Insert a check here to create a 2D map of the output grid model. Click on this tab to set up the 2D map layers (bitmap, symbols, labels, line contours, color-filled contours, labeled cells, etc.).
  ! Don't request map symbols or labels if you don't have any data loaded into the RockWorks datasheet at this time.
  • Output Options: Use these settings to define whether the output graphic is to be saved (or displayed as "untitled"), how the file should be named, and whether it is to be displayed after it is created. It also offers export options. (More info)
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• 3D Grid Diagram: Insert a check here to create a 3-dimensional image of the output grid model. Click this tab to set up the 3D map layers (surface style, colors, perimeter, reference cage, etc.).
  • Output Options: Use these settings to define whether the output scene is to be saved (or displayed as "untitled"), how the file should be named, and whether it is to be displayed after it is created. It also offers export options. (More info)
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Step-by-Step Summary

1. Be sure you have an existing Boolean solid model already created, for input into this program.
2. Be sure you also have a grid model that represents the ground surface, with the same node density as the solid model, for input into the program.
3. If you want to include your control point symbols on a 2D map, you'll need to create or open a RockWorks datasheet which lists these X and Y locations.
   ! Tip: Use the Borehole Manager's File | Transfer | Locations -> Datasheet to transfer a listing of your borehole location data to the datasheet.
4. Select the ModOps | Solid | Convert | Solid -> Total Waste Grid menu option.
5. Enter the requested menu settings, described above.
6. Click the Continue button to proceed.

   RockWorks will read the input Boolean solid model file. It will first determine the solid model nodes that lie above the grid surface and remove them from consideration. Then, for each column of node values it will compute the total thickness of waste nodes (which are assigned a Boolean value of "0") down to the first ore node (which are Boolean values of "1"). The total thickness above the ore, expressed in your original elevation or depth units, will be stored as the Z value for that X,Y node location in the output grid file. This process is repeated for each column of nodes in the source file. The completed grid file will be stored in the project folder under the requested file name.

   The requested diagram(s) will be displayed in a RockPlot2D tab and/or RockPlot3D tab in the Options window.

7. You can adjust any of the settings via the main Options tab to the left, and then click the Continue button again to regenerate the diagram(s).
8. View / save / manipulate / print the diagram in the RockPlot2D and/or RockPlot3D window.
   

See also

• Adding this program to your Playlist
• Adding this program to your Favorites
• Save/load/view menu settings
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