Aquaveo & Water Resources Engineering News

GMS Sprint July 2015

Some of the more notable things completed by the GMS team during the month:

  • Fixed several bugs
  • Greatly sped up voronoi UGrid creation
  • Finished CLN wells interface
  • Create a new tutorial for the Name File dialog
  • Progress on mod-PATH3DU
  • Added exporting of solids to VTK file format
  • Started on a new tutorial about projections
  • Added a number of user requests from the forum:
    • Material legends in the Cross Section Editor
    • Right-click to uncheck all layers in the CAD menu
    • Added a preference for changing the direction of the mini-grid increment/decrement
    • Added a preference for inverting the mouse wheel zoom direction
    • Changed it so attached cross sections are cleared but not deleted when editing a borehole
    • Added descriptions to borehole segments
    • Cross section editor plot lines can now appear in back of cross section
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Improved Voronoi Grid Generation

Support for unstructured grids (UGrids) began with GMS version 10. A variety of UGrids can be created using GMS. One type of UGrid is a Voronoi grid. A voronoi grid has certain desirable characteristics related to the computational scheme of MODFLOW-USG: MODFLOW-USG assumes that connected cells are perpendicularly bisected by a line connecting the centers of the cells. Recent enhancements to GMS 10.1 include a much faster Voronoi grid generator. An example model is shown below of a voronoi grid of the Biscayne Bay model area. This grid was generated in about 30 seconds on a core i7 3.4 GHz processor. The final grid has about 200,000 cells.
Model Area
Voronoi Grid
Zoomed view of northern rectangle
Zoomed view of southern rectangle