MainDGILogo

Alameda Headquarters
1015 Atlantic Avenue
Alameda, California
94501-1154
510-522-0700
510-522-5670 fax
sales@dgi.com
support@dgi.com
training@dgi.com

On-screen Color Legend for Seismic Attributes

Currently, on-screen color legends for Seismic Attribute images are unavailable in CoViz. A comprehensive solution for quantitative seismic attributes is scheduled for development. In the interim, the steps below can be used to generate an on-screen color legend for any seismic attribute (this only requires that you know the settings used when the seismic attribute image was initially created). The steps below correspond to the numbers shown on the diagram.

  1. Load into the Viewer the seismic attribute and one other scattered data file associated with the asset (e.g., path file, tops file, etc.). The scattered data file must have at least one numeric attribute, such as md, radius, etc.
  2. Select the scattered data file from the File Selection box and go to the Visible tab.
  3. For one of the numeric attributes in the scattered data file (e.g., radius), click on the Property Boundaries button.
  4. Enter the Min⁄Max of the seismic attribute values, as specified when the seismic attribute was imported from SeisWorks.
  5. Set the blue slider handles out to these new boundaries (by either typing a value or dragging the handles). Ensure that the values above and below the slider are the same, and that the blue handles are at the ends of the slider.
  6. Remap colors to slider boundaries (fifth item in the drop-down color palette menu).
  7. Optional If the seismic attribute image was made with a color table other than the default DGI property color table, then the correct color table can be loaded for this numeric attribute now, again using the drop-down color palette menu.

The on-screen color legend should now be the same as the colors portrayed in the seismic attribute image.


N.B. If the appearance of the scattered data file with the ″adjusted colors″ is distracting, the visibility can be removed using the checkbox in the File Selection window. The desired color legend on-screen will remain (as long as the scattered data file is selected). If the visibility of the scattered data file is required, but in ″unadjusted colors,″ then the original file (from Step 1) can be duplicated in the Viewer before the color adjustment process.