Performing a Density Conversion on a Boolean Model

RockWorks | Utilities | Solid |
Boolean Operations | Density Conversion

This program is used to enter a multiplier for individual Boolean voxels so that the program can compute total mass as well as total volume.

Menu Options
Step-by-Step Summary
 

Menu Options

• Boolean 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. 
  ! This must be a Boolean (not a real number) model. See the Applying a Boolean Filter to a Solid Model option for information. 
• Output Model: Click to the right to type in the name to assign to the new real number solid model that the program will create, which results from the conversion operation. 
  
  
• Density Conversion Factor: Enter here the real number value to which each voxel’s volume is to be multiplied. This value should represent the density of the rock type whose thickness is modeled in the input grid file, per unit volume. 
  ! Be sure that the conversion factor you enter matches the volume units that the program is using.  If the program will be computing volume in cubic feet but your conversion constant represents weight per cubic inch, you would need to convert the constant to weight per cubic foot before entering it here. 
  
  
• 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. Note that the resulting model contains density (real number) values - it is no longer a Boolean model.  (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. Be sure you have an existing Boolean solid model already created, for input into 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 model. 
3. Select the Solid | Boolean Operations | Density Conversion menu option.
4. Enter the requested menu settings, described above.
5. Click the Process button to continue.
   
   The program will load the input solid model, compute the volume of each voxel, multiply each voxel’s volume by the recorded G value (either "0" or "1"), and then multiply this by the entered Density Conversion Factor. The resulting mass values will be stored in a new real-number solid model on disk under the output file name you selected.  If you have requested a diagram, it will be displayed in a RockPlot3D 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 the diagram in the RockPlot3D window. 
   
   

See also

• Density Conversion Tables for some sample rock densities
• How to Measure your Rock Density
  
  

Back to Solid Menu Summary

RockWare home page