Creating a Grid-Based Rose Diagram

RockWorks | Utilities | Grid | Directional Analyses |
Grid -> Rose Diagram

This program tool reads a grid (surface) model and computes the changes in Z-values (elevations) between neighboring nodes, noting the direction (0 to 360) of steepest change (= "aspect").  It then creates a rose diagram to summarize the directionality of the aspect bearings (dip direction) or of the corresponding structure bearings (strike direction).

Note: This program requires that a RockWorks surface (grid) model already exist. 

Menu Options
Step-by-Step Summary

Menu Options

Step-by-Step Summary

  1. Be sure you have a RockWorks grid model (.RwGrd file) already created, for input into this program.
  2. Access the RockWorks Utilities program tab so that you can see the Grid menu. It is not necessary to open a datasheet.
  3. Select the Grid | Directional Analyses | Grid -> Rose Diagram menu option.
  4. Enter the requested menu settings, described above.
  5. Click the Process button to continue.

The program will read the input grid model, compute the slope and aspect for each node, and determine the dip direction or strike direction for each node.  It will then tally the number of nodes whose direction falls within the petal groupings, and will generate a rose diagram using the requested diagram settings. The rose diagram will be displayed in a RockPlot2D tab in the Options window.  

  1. You can adjust any of the settings in the Options window (input grid model name, diagram settings, etc.) and then click the Process button again to regenerate the rose.
    ! Each time you click the Process button, the existing display will be replaced. 

  2. View / save / manipulate / export / print the diagram in the RockPlot2D  window. 

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