Release Notes

Oasis montaj 5.1.2

• How to upgrade
• Download the offline upgrade patches

Click on the following for further information:

• New in Om5.1.2
• GX Developer advances in Om5.1.2
• Bugs Fixed in Om5.1.2
• Release notes for previous versions

In response to suggestions from users an upgraded version of Geosoft’s WHOLEPLOT Drillhole Plotting application is now available. The WHOLEPLOT upgrade will be released in two phases, with the second phase (Om5.1.3) scheduled to be released the end of February 2002. The following list provides an overview of some the new and upgraded features. For a more detailed description, visit http://www.geosoft.com/news/011016.html

• New preferences dialog enabling users to define default map templates, rock code files, dip angle sign, etc.
• New individual ‘data type’ databases for example, separate databases for collar, assay, and geology are created and are linked by project. This will allow for easier data management
• Updated data import wizard to enable import of Excel (*.xls) files directly
• When importing ‘assay’ data all elements are assigned the ‘class’ assay and standards and duplicates can be identified
• Ability to auto convert negative’s when importing assay data
• Standards and duplicates can be extracted using the normal CHIMERA™ tools
• All CHIMERA™ tools work with assay data
• Default standard AGSO rock codes, ability for users to define their own, save and set as the default for future projects
• Hole removed from collar file will be removed from all databases
• New tab dialogs for quick plan and section creation, with sensible defaults
• Ability to colour fill bar plots
• Scale bars can be posted at the end of holes for bar plots and profile plots
• Posted numeric data colour coded based on data range from an (*.itr) file
• When creating a section, there is the option for up to 3 panels, section, plan and profile
• Ability to plot up to 3 profiles in a third profile window in a section
• Standard Oasis map layout for plans and sections
• Wizard to open and save plan and section parameter map files
• Wizard to open and save standard data parameters
• New ‘maker’ tool to quickly recreate plans and sections

• Single hole strip log tool
• Compositing tool
• QA/QC
  • overlapping from/to bottom of hole not to exceed final depth
  • duplicate holes in collar file
  • missing holes from collar file if try to import other data
  • check for missing intervals
  • no dip/azimuth change greater than 5° between points

You may now create 3-D views on a standard Geosoft map. Up to version 5.1.1, all map views represent a 2D drawing space. In version 5.1.2, you can create a full 3D views that represents a 3D drawing space. A 3D view may contain any number of 2D drawing "planes", each oriented separately in 3D. The surface relief of each plane may be flat, or may be defined by the data value of a chosen relief grid. For example, you can create a 3D view that display a topographic surface with a satellite image from an ER Mapper plugin draped on the surface, geochemical symbol plots drawn on the surface, and above the surface you may have a single flat plane on which contours are drawn. You might even locate one or more an IP section s vertically beneath the topographic surface.

Anything that can be drawn in a normal 2D view may now be drawn on a plane of a 3D view. Once a 3D view exists on a map, you can simply select that view as the default drawing view, and you can select any plane in the 3D view as the default drawing plane. All data that is drawn (images, contours, symbol maps, line paths, etc.) will then be drawn in the 3D view on the default drawing plane. You can also create new planes and copy existing map views or groups to planes in a 3D view.

A 3D view appears on a map as it was last viewed. To change the point of view, zoom, pan and plane details (such as plane location, surface resolution, relief scale, transparency etc.), you can select the 3D View and activate the 3D Viewer. This is a fully interactive viewer that allows you to manipulate the 3D object as required. When the viewer is closed, the 3D view will appear on the 2D map exactly as it last appeared in the 3D viewer.

For version 5.1.2, we only support drawing of 2D features onto planes in the 3D view. Over time we will be extending the GX Developer graphics interface to allow you to draw full 3D objects within a 3D View.

Support for geoid models has been expanded in the Geosoft projection engine. All datums may now define a grid file that defines the geoid of a specific datum relative to WGS84. Version 5.1.2 includes the "geoid99" model for NAD27 in the United States and the "AUSGeoid98" model sampled at a 3 minute interval for AGD66 and AGD84 in Australia. The geoid models are used to convert elevations from geoid based datums to and from WGS84. In this version, if a datum does not have an appropriate geoid model, the conversion of elevations will not take place.

Geoid models are defined by a grid of elevations relative to WGS84. Geoid grid files are placed in the <geosoft>\user\etc\ or, if not found there, in the <geosoft>\etc\ directory. Geoids should be named after the datum they should be used with. For example, the AUSGeoid98 is stored in grid file "Geoid_AGD66.grd" because it should be used with the AGD66 datum. The AGD84 datum shares the same geoid, and in this case the geoid is explicitly defined in the Geoid column on the datum.csv file.

GROUPAREA is a new GX that calculates the polygonal area of all polygons contained in a selected group. It can be found on the "Mapping/Polygonal area of a group…" menu item.

Added the ability to rename a group on a map.

GRIDZONE is a new GX that allows you to create a single zone file based on the statistics and ranges of up to 5 grid files. It can be found on the "Grid/Display grid/Create colour zone file…" menu item.

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Support for 3D Views has been added to GX Developer.

For the most part, you deal with 3D Views just like 2D views. In fact, a 3D view is simply a 2D view with a 3DN object applied. The 3DN object provides a 2D view with the 3D reference frame for looking at the view in 3D (see 3DN.GXH). The SetH3DN_MVIEW applies the 3DN object to a 2D view, after which the view becomes 3D. Before you can draw in a 3D view, you must create and locate a drawing plane in the view. A drawing plane is a surface that may have relief defined by a grid surface, and may be oriented as required in 3D space.

Sample GX’s that use the new 3D functions are V3DMAP, V3DIMG, V3DADD, V3DDEL, and V3DPLANE. Refer to MVIEW.GXH and 3DN.GXH for more information about the 3D functions.

Normal VVs are optimized to prevent thrashing, and to efficiently support many extremely large VVs. However, there is a small performance penalty when VVs are used within Geosoft functions, and there is a very large performance penalty accessing VV data using the rGetReal_VV, iGetInt_VV and GetString_VV functions.

We have added support for memory-based VVs to allow your applications to access the VV memory directly. To do this, immediately after creating a VV, call the MakeMemBased_VV function to make the VV memory based. Oo access the VV memory, use the GetPtrVV_GEO function to get the base pointer of the VV memory. Note that you can only read and write to this memory up to the declared or current size of the VV. You should use the SetLen_VV functions to change the size of a VV, after which you should always call GetPtrVV_GEO to determine the new base memory pointer.

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Bugs Fixed in Om 5.1.2 

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