Regular Block Models

A regular block model has blocks that are all the same size and are never divided.

Regular block models can be exported in CSV, Datamine, Surpac and Geosoft Voxel formats.

The rest of this topic describes:

• Creating a Regular Block Model
• Selecting Evaluations
• Selecting Meshes for Calculating Proportions
• Exporting Regular Block Models

Creating a Regular Block Model

To create a new regular block model, right-click on the Block Models folder and select New Block Model. In the window that appears, select the Regular Block Model option.

The New Regular Block Model window will appear, together with a set of controls that will help you set the size, location and orientation of the model in the scene:

The block model is defined from its Base point, and the reference centroid is the Base point plus one half the Block size. Block models extents always include complete blocks, and when changes are made to the Block size parameter, the model’s extents will be enlarged to fit the Block size.

If you know the values you wish to use for the model’s Extents, enter them in New Block Model window. You can also:

• Use the controls in the scene to set the extents.
  • The orange handle sets the Base point.
  • The red handles adjust the size of the boundary.
  • The blue handle adjusts the Azimuth.
• Use another object’s extents. Select the object from the Enclose Object list.

You can create a tilted block model by adjusting the Azimuth, Dip and Pitch angles, or you can Set Angles From the slicer or moving plane.

It is a good idea to use larger values for the Block size as processing time for large models can be considerable. Once you have created a block model, you can change its properties to provide more detail.

Once you have set evaluations and proportions, enter a Name for the block model and click OK. The model will appear under the Block Models folder. You can make changes to it by double-clicking on it.

Selecting Evaluations

You can also evaluate the block model against geological models, interpolants and distance functions in the project. To do this, click on the Evaluations tab. All objects available in the project will be displayed. Move the models you wish to use into the Selected evaluations list.

Selecting Meshes for Calculating Proportions

Click the Proportions tab and select meshes from the list of Available meshes to calculate the proportions of blocks inside or outside of the Selected meshes.

Exporting Regular Block Models

Regular block models can be exported in CSV, Datamine, Surpac and Geosoft Voxel formats. See:

• Exporting Block Models in CSV Format
• Exporting Block Models in Datamine Format
• Exporting Block Models in Surpac Format
• Exporting Block Models in Geosoft Voxel Format