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VISUS Release Version 1.2  

VISUS New Features and Fixes



This release is made on February 17, 2004
SEGY Amplitude Scaling Controls: Amplitude scaling for SEGY displays is now easier.  From the SEGY Property Dialog, you can now use the -< or >+ buttons to increase or decrease the trace scaling.  You can also manually type in an amplitude scale.
Vertical Slices Measured in Depth/Time: All controls for selecting vertical slices in 3D SEGY and Grid Model volumes now read in depth or time instead of slice number.
File Read/Write Errors:  All file permission errors for reading or writing files will now be flagged with a diagnostic message indicating appropriate corrective action.
User Set Program Defaults:  The user can now set the default directory for loading and saving files.  This new setting can be found on the Viewer tap of the Configuration dialog.  Default color maps for Seismic, Surface and Well Log displays can be set under the Default Color Map tab of the same dialog.
Data Conversion Utilities:  Four new data conversion utilities have been added.  All can be found under the Conversion command and are described below.



Conversion of 3D grid models between ASCII and binary formats.  VISUS and the latest release of VECON use the binary formatted grid models.  Older versions of VECON used the ASCII grid model format and need to be converted to binary before loading into VISUS.  Binary grid models can be converted to ASCII if needed for other 3rd party programs.
Conversion of generic ASCII well directional information into a VISUS formatted well file.  The input and output data are assumed to be in depth.  You will need to know the column numbers of the coordinates and the number of headers to skip in the input file.  User supplied Reference Depth and Datum elevations will be used to shift the data.  Depth well files have file extension .3welZ.
Conversion of depth well files to time well files.  A file containing depth/time information is required in addition to the depth well file for this conversion.  Time well files have file extension .3welT.
 Conversion of 3D SEGY files to 3D Grid Model Format.  The Grid Model file will have file extension .3mdlb.  No parameters are required for the conversion.
New File Format Support for Shots and Receivers:  Two new formats are available for loading source and receiver geometry from ASCII files.  The new source files will have file extension .shtZ or .shtT and should contain the X, Y and either Depth or Time of the sources.  The new receiver files will have file extension .rcvZ or .rcvT and should contain the X, Y and either Depth or Time of the receivers.  Any header records present will automatically be skipped.  Header records are indicated by an * in column one. These files are loaded with the standard Open Files command.
2D Seismic Display Options:  Several new features have been added to the 2D Seismic Property Dialog.  The user can now select a trace range to display, vertically shift the section, and add transparency.  A problem of sometimes missing the last two traces has been fixed.
Snapshot File Format: Save Snapshot Image File has added .gif format to the list of supported formats.  The .gif files will usually be smaller than most of the other graphic file formats.  The original .jpeg, .bmp, .png, and .tiff formats are still available.
Salt Proximity Data: Salt Proximity Survey points can be loaded for display with the File/Import Salt Point Map command.  This uses a generic ASCII loader like the one for loading Interface Maps from previous versions.
LAS Log Curve Data: The format restrictions for LAS log curve format have been updated.  The LAS file header must now contain the STRT, STOP, STEP, NULL and ~A records.  All other header information will be ignored if present.  Also corrected a problem when the curve values do not start at depth zero.
Orientation Marker:  The user can now add an orientation marker to the VISUS scene.  This marker is placed in the upper, southwest corner of the scene and uses arrows to indicate north, east and down.  To turn on the symbol, use the View/Orientation command.  A Property Dialog is available to change the colors and line widths for the marker.
Corridor Stack: The wiggle traces are now color coded by amplitude.  Previous versions repeated the first Corridor Stack trace eight times in the display.  The new version will display all traces in the file.
Reset Button for 3D Seismic and Grid Displays:  The property dialog for 3D Seismic and 3D Grid Model Displays now has a Reset button to restore all display parameters to their default values.
New Naming for Arbitrary Cross-Sections:  When generating arbitrary cross-sections through 3D seismic or grid volumes, the new cross-sections will no longer have the same name in the Display List as the original 3D volume.  The cross-sections will have _2D_nn appended to the file type with nn being the sequential number of the cross-section for that 3D volume.
Setting the Browser for On-Line Help:  By default the on-line help files are viewed with the JavaTM text window.  To use another browser to view these files, edit the VISUS.bat file and add the following to the JavaTM command line: browserPath = ^path ̄ where ^path ̄ is the folder containing the browser you want to use.
Various Bug Fixes:  In addition to the many new features, various minor bugs have also been corrected.