Applying a Solid Model Table-Based Replacement Filter

RockWorks | Utilities | Solid | Filters | Table-Based Replacement Filter

This program converts G-values within a solid model based on the contents of a lookup file. This file, loaded into the Utilities datasheet, lists a series of minimum and maximum G-value ranges and the replacement G value for each.  This is different from a solid model range filter which reassigns nodes based on a single range of G-values.

Example:  Transform a lithology model into a hydraulic conductivity model based on the material type.  

Menu Options
Step-by-Step Summary
 

Menu Options

• Input Columns: The prompts along the left side of the window tell RockWorks which columns in the input datasheet contain what data.
  Click on an existing name to select a different name from the drop-down list. See a sample data layout below.
  • Minimum: Column that contains the minimum G value for each range which you've defined.
  • Maximum: Column that contains the maximum G value for each range.
  • Replacement: Column that contains the replacement value for each range. During processing, RockWorks will identify nodes with G values within the listed ranges and substitute the replacement values.
    
    
• Input 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. 
• Output 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 table-based range filtering operation.
  
  
• Unfiltered Nodes: Define what will happen to nodes whose values don't fall within any of the listed ranges.  
  • Do Not Change: Choose this option if these nodes are to be copied to the output model unchanged.
  • Set to Default Value: Choose this option if these nodes are to be assigned a specific value.
    • Default Value: Click to the right to type in the value to be assigned to any unfiltered nodes. For a RockWare null value (1e-27) you can type in the word: NULL
      
      
• 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. Access the RockWorks Utilities program tab.
2. Create a new datasheet and enter/import your listing of range/replacement values. Here's an example of what this might look like.
   

3. Select the Solid | Filters | Table-Based Replacement Filter menu option. 
4. Enter the requested menu settings, described above.
5. Click the Process button to proceed.
   
   The program will proceed to filter the model.  Here's how:
   • The program will load the input solid model. 
   • It will compare the G value of each node to the declared filter range(s) which are listed in the datasheet. 
   • If the node value falls within one of the declared ranges, it will be reassigned the Replacement value. If it does not, it will be reassigned the Undefined value.

   

   • The results will be stored on disk under the output solid model name.
   • If you have requested a diagram, it will be displayed in a RockPlot3D tab in the Options window. 
      
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 / export the image in the RockPlot3D window.
   
   

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