Adjusting Solid Model Node Values based on Two Grid Surfaces

RockWorks | Utilities | Solid | Filters |
Grid Filters | Two Bounding Grids

This program is be used to determine solid model nodes that lie above, between, or below two grid surfaces, and to replace the node values or pass them unchanged.

Use: Set voxel nodes above the ground surface and those below borehole bases to null while passing those in-between the surfaces as-is.

Menu Options
Step-by-Step Summary
 

Menu Options

• Input 
  • 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 and filter. 
  • Upper Grid: Click here to browse for the name of the existing grid model (.RwGrd file) that the program is to use as the upper filtering surface. 
  • Lower Grid: Click here to select the name of the existing grid model that the program is to use as the lower filtering surface. 
  • ! The input solid model and the input grid files must have the same dimensions and numbers of nodes in the X and Y directions in order for this filter to work. If you aren't sure, you can use the Statistics Report option in the Grid and Solid menus to view a summary of model dimensions and node spacing for grid and solid models, respectively.
• Output Model: Click to the right to type in the name to assign to the new solid model (.RwMod) that the program will create, which results from the filtering operation.
  
  
• Nodes above Upper Grid: Expand this heading to define what should happen to the solid model nodes that lie above the upper grid model.
  • Do not Modify: Select this button to leave these nodes unchanged.
  • Replace with Null Value (-1e27): Select this button to assign the nodes the RockWare null value.  These nodes will be displayed invisible in RockPlot3D.
  • Replace with User-Specified Value: Select this button to type in a specific value to assign to the designated nodes.  Expand this heading to type in the value.
• Nodes between Grids: Expand this heading to define what should happen to the solid model nodes that lie between the two input grid models.  The options are the same as listed above.
• Nodes below Lower Grid: Expand this heading to define what should happen to the solid model nodes that lie below the Lower Grid model.  The options are the same as those listed above.
  
  
• Create 3-Dimensional Diagram: Insert a check here if you want to create a plottable 3D diagram of the resulting solid model. Expand this item to establish the diagram settings. 
  • Diagram Type: Choose Isosurface to display the solid model as if enclosed in a "skin". Choose All Voxels to display color-coded voxels. (More.)
  • Iso-Mesh: Use this option to plot a series of polylines that represent three-dimensional contours at a user-defined cutoff. Expand the heading to establish the settings.  (More.)
  • Color Scheme: Click on the Options button to the right to access a variety of pre-set color schemes, or to create your own.  (More.)
  • Reference Cage: Insert a check here to include vertical elevation axes and X and Y coordinate axes in the 3D diagram. Expand this item to set up the cage items.  (More.)
  • Include Legend: Insert a check here to include an index to the colors and G values in the diagram.  (More.)
    
    

Step-by-Step Summary

1. Double-check that you have the following:  A real number RockWorks solid model, and two RockWorks grid models whose Z value represent elevation, and which contains the same dimension coordinates and number of nodes in the X and Y directions. These will be the input files for this program.
2. Access the RockWorks Utilities program tab. It is not necessary to enter data into the main datasheet because RockWorks will be manipulating an existing solid model and grid model. 
3. Select the Solid | Filters | Grid Filters | Two Bounding Grids menu option. 
4. Enter the requested menu settings, described above.
5. Click the Process  button to proceed.
   
   The program will read the contents of the input solid model file, and compare the location of each of its nodes to the elevations in the two input grid files. The G-value of each node that lies above the upper grid, each node that lies between the grids, and each node that lies below the lower grid will be replaced or left alone, as defined above. The resulting solid model file will be stored under the declared output file name. If you have requested a diagram, it will be displayed in a RockPlot3D tab. 
    
6. You can adjust any of the input options along the left side of the window and click the Process button again to regenerate the model and display.

   ! Each time you click the Process button, the existing 3D display will be replaced. 

7. View / save / manipulate / print the image in the RockPlot3D window.
   
   

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