Oasis montaj 7.5.1

August 16, 2012

Update from Oasis montaj 7.5, 7.5 SP1 or 7.5 SP2 to Oasis montaj 7.5.1.

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Release Notes

About this release
How to update
System requirements
Enhancements and maintenance fixes

About this release

Oasis montaj 7.5.1 is a scheduled software upgrade available to all maintained customers. This release includes support for ArcGIS 10.1 as well as a number of maintenance fixes.

How to update

Online installs for each product are available through the Check for Software Updates option within the software and from the download link at the top of this page. If you are using the Oasis montaj Educational version, you can update through the software or contact your local Geosoft support team for a download link to the file.

System requirements

Oasis montaj 7.5.1 runs on Windows XP SP3 (32-bit), Windows Vista (32- and 64-bit) or Windows 7 (32- and 64-bit) operating systems. See detailed System Requirements


Enhancements and maintenance fixes

Oasis montaj


Shapefiles can now be imported without error if the projection file (*.prj) has the datum defined as D_North_American_1983.


With the "Auto Recolour Grids" option turned on, grid colours are now maintained on export for the map's "Viewed Region".


Checks have been put in place to prevent the corruption of the database font and size.


Abort no longer occurs using "Save As" to save a Map with a new name - related to <sSymbAngle_MVIEW>.


Abort no longer occurs using undo option when editing a CAD group on a map - related to <sMarkItem_MGROUP>.


Running a script recorded with "Region to Export" set to "Viewed Region" or "Full Map" now exports the map and Base view correctly.


Scale parameter and the edge/fill options are now remembered when you run the Proportional Symbol Legend (PROPSYMBLEG.GX) again.


The Datum and Local datum transform fields in the Coordinate System dialog are correctly populated if the coordinate system for the file was set to NAD83(CSRS98) in v7.2.1 or earlier.


You can now drag and drop a vector group from a 2D map onto a Relief Surface plane in the 3D viewer.


GDB to Voxel conversion no longer fails silently when the Z channel is not defined. An error message will display if you do not have the current X, Y or Z channels defined.


Error messages now indicate a problem with mismatching closing parenthesis for Voxel Math Expressions instead of prompting you to assign voxels files to X, Y or Z used in the expression.

Oasis montaj extensions

Drillhole Plotting

IS37778 Profile line is now added to the section when plotting a topography profile from a Gemcom BT2 file.
IS75073 The results written to the Significant intersection composite database now use the correct weighted average.
IS78476 Error messages no longer occur when using the 3D Gridding options with a database that is not part of the drillhole project if a drillhole project is open.
IS79070 The plotted grid or image in the plan view will now display in the correct location when creating N-S or angled sections. E-W sections were not affected by this issue.
IS80914 ArcGIS Layer files will now display in the correct location in the plan view of N-S or angled sections. E-W sections were not affected by this issue.

Geochemistry and Geophysics


Data linking now works correctly for Scatter plots and tri plots and the related database and map.

GM-SYS 3D Modelling


Gravity structural inversions no longer fail when the model contains a 3D density distribution in a layer.

GM-SYS Profile Modelling


The error message triggered when creating a new time model and defining the area of interest by "Import from database line" no longer occurs.

Induced Polarization

IS38015 Abort no longer occurs when running IPXY.GX - related to <GetQCVectorsIP>.
IS38936 Memory leak abort will no longer occur for IP pseudo section plot scenarios - related to <hCreat_VV>.

VOXI Earth Modelling

IS68871 Inversions no longer fail if your Regional Language Settings are set to use a character other than a period (.) as the decimal symbol.
IS71045 Oasis montaj no longer aborts after pressing the VOXI Journal button even if the XML file for the VOXI document does not exist in the project folder.
IS78567 The Error value and Measured Data Statistics are now correctly reported when "Optimise data sampling" is not selected.
IS79496 When drawing a new polygon and overwriting an existing polygon, the size of the model mesh is now correctly updated.
IS80933 The Inclination and Declination values reported in the VOXI Parameter Summary are no longer transposed (switched). The correct parameters were always passed to the inversion so it was only the reporting error that required a fix.
IS84750 When padded cells are shown, the DEM and Mesh are now extrapolated correctly.


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