Implicit Modelling

This topic provides a summary of new features and enhancements related to Implicit Modelling.

Vein Intercepts

The Load Vein Intercepts tool has been added to the Vein tool on the Implicit tab, in the Lithology group to allow editing of vein intercepts used in Vein modelling.

Veins are commonly modelled with channel samples. However, channels do not always cross all the mineralisation in the vein. Modelling HW and FW for all contacts will result in inaccurate models. In these situations, the Vein Intercepts tool can be used to select the intervals to model from each drillhole. The tool can be used to exclude segments and select whether to include HW/FW values, or only one or the other. The result is a better guide for the intercepts to be modelled.

Lithology Modelling Intercept File

The Intercept File option has been added to the Contact, Vein and Geology tools on the Implicit tab, in the Lithology group to allow you to specify the intercept file. For example, the Vein Lithology Modelling Input tab:

For the forms where the Intercept file can be specified, the modeller will output the automatically determined FW/HW contacts and orientations to this file and use the user fields as input to the modelling process.

If you click the Layers button at the right of the field, the form will be closed and the new Vein Intercepts tool is loaded with the selected file displayed. With the modelling form closed, you can use the tool to view and/or modify the vein intercepts.

From the Vein Intercepts tool, the Return to Modelling Form option on the Vein Intercepts tab, in the Form group will open the Vein Network or Geology Modeller form again.

Autofill Surface Map Lithologies

The Autofill from file button has been added to the Lithology tab of the Surface Map form to allow automatic configuration of the Lithologies grid using a String and/or Structural data file.

The new button opens a Lithology form from which you can specify String and/or Structural data details along with optional Orientation and Colour Coding information. Information supplied in the form can then be written over or appended to the Lithologies grid in the Surface Map form.

Underground Pinch Points

Support for underground pinch (zero-valued) points has been added to Surface Map | Vein Lithology Modelling.

Where the Control Point Value field specified on the Input Points tab of the Vein Lithology Modelling form has a 0 value, the resulting pinch point constraining the vein will occur 'underground'. Previously, pinch points were expected to be on the surface.

Numerical Implicit Model Sub-Domains

Support for configuring Single or Multiple Domains has been added to the Options for the following tools:

If the Multiple Domains option is selected, the Domain name and Wireframe type/name columns appear in the Domain Settings grid.

For example, the Attributed Points Modelling form:

The Weighting grid added to the forms allows you to define the Weighting (local anisotropy) for each domain with isotropic, anisotropic, and structural trend options. Domain names configured are prepended to the Weighting grid to easily identify which weight corresponds to which domain. Selecting rows in the domain settings grid updates the centered plot.

For more information on the new features, see the links to each tool provided above.