Replacing Solid Model Node Values based on a Grid Surface

RockWorks Utilities | Solid |
Filters | Grid Filters | G-Filter

This program is be used to replace node values within a solid model based on a surface model; you can specify the replacement value for those nodes above and/or below the surface, and you can define the current node values to be replaced.

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) that the program is to read and filter. 
  • Surface Grid: Click to the right to browse for the name of the existing grid model (.RwGrd file) that the program is to use as an elevation reference when filtering the input solid model. 
  • ! The input solid model and the input grid file 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
  • Solid Model: Click to the right to type in the name to assign to the new solid model that the program will create, which results from the filtering operation.
• Filters: Expand this heading to specify above- and below-grid replacements.
  • Above Grid: Check this box to replace the node values that lie above the input surface, and expand this to establish the replacement settings.
    • Replacement Value:  Click here to type in the real number value to replace the existing values of the solid nodes that lie above the grid surface.
    • Filter Type: 
      • Select All Nodes if all voxel nodes above the grid surface are to be replaced by the specified value. 
      • Choose Selected Nodes to replace only some of the nodes above the surface are to be replaced.  Expand this to declare the range of existing node G values for nodes that lie above the surface to be replaced.
  • Below Grid: Check this box to replace the node values below the input surface, and expand this to establish the replacement settings.
    • Replacement Value:  Click here to type in the real number value to replace the existing values of the solid nodes that lie below the grid surface.
    • Filter Type: 
      • Select All Nodes if all voxel nodes below the grid surface are to be replaced by the specified value. 
      • Choose Selected Nodes to replace only some of the nodes below the surface are to be replaced.  Expand this to declare the range of existing node G values for nodes that lie above the surface to be replaced.
        
        
• 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 mode (.RwMod file)l, and a RockWorks grid model (.RwGrd file) 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 | Filter | Grid Filters | G-Filter menu option. 
4. Enter the requested menu settings, described above.
5. Click the Process button to continue.
   
   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 input grid file. If you have activated the above-grid filter, it will look at the G value range, if necessary, to determine whether each above-grid node should be replaced by the specified replacement value.  It will repeat this for the below-grid nodes if you have activated that filer. 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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