NAME    zone_fence - display, finite fence connecting zones from two wells.

AUTHOR  Ian J. Curington, Advanced Visual Systems Inc.

DESCRIPTION
  Draw a fence panel connecting two wells, joining up
  common zones, and texture map image data onto
  the fence panels.
  This routine takes three geometric field inputs, one the
  zonation table, containing a 2D array of wells and zones,
  and the deviation scatter path data for two wells.
  It creates a geometric representation of the zonation region
  between the wells. The depths are resampled using linear
  interpolation from the deviation data to create a 3D sheet.
  Two optional inputs, texture image A and B, if present
  will texture map onto alternate panels of the fence.


  It looks at the labels on the well dev field to figure
  out which well it is, then indexes the zonations by this,
  so there is no menu selection needed here.