Version history for


  Labay, Keith A., and Haeussler, Peter J., 2007, 
       3D Visualization of earthquake focal mechanisms 
       using ArcScene(r):  U.S. Geological Survey Data 
       Series 241 [http://pubs.usgs.gov/ds/2007/241/].



  Version 1.1


  December 17, 2007

  Fixed a screenshot for one of the figures

  April 27, 2007

  Fixed: In ArcScene 9.2 symbols would not be placed 
  correctly by 3D Focal Mechanisms 1.0 if the projection of 
  the scene did not match the projection of the input point 
  dataset.  3DFM would appear to create an empty graphics 
  layer when in reality the symbols were being drawn offset 
  from the point locations.  This issue does not affect 
  3DFM 1.0 when using ArcScene 9.1.  3DFM 1.1 is still 
  compatible with ArcScene 9.1.



  Version 1.0


  January 29, 2007

  Initial release online at
  http://pubs.usgs.gov/ds/2007/241/