Distance

Use this option to calculate the distance from each block in a block model to the nearest boundary of a triangulation, block with a particular value assigned to a variable, nearest intercept of a drillhole, the nearest point of a polyline, or nearest section of a polyline.

Instructions

In the Block menu, point to Manipulation, then click Distance to display the following interface.

Specification file

Use the drop-down list to select the specification file if it is in the current working directory, or browse for it in another location by clicking the Browse button. You may also create a new file by typing the name of the new file in the textbox.

Scenario ID

Use the drop-down list to select the ID file, or create a new one by clicking the New icon.

New
Save
Save as
Delete

Block Selection

Block model

Use the drop-down list to select the block model if it is in the current working directory, or browse for it in another location by clicking the Browse button.

Output Variable

Select the variable that will store the distance results.

Select all blocks

Select all blocks in the chosen block model.

Select specific blocks

Select only the block that meet the criteria set by the following conditions:

Use block centroids

Select this option to include blocks if the block centroid is within the region. Note the entire block is included.

Proportional cell evaluation

Select this option to include those blocks that touch the region, and evaluate reserves according to the proportion of the block's volume that lies within the region. Proportional cell evaluation calculates and reports the exact proportion of a block within a solid triangulation. When selecting blocks, all blocks that touch the region are selected.

Mask by variable

Select this check box if you want to restrict the blocks by a block model variable. You will need to specify the variable, as well as a particular value.

For example, to restrict blocks to those where Material equals Ore, select ;Material' as the variable (from the drop-down list) and enter 'Ore' as the value. However, if you require all blocks that do not have this specified value, then enable the Reverse block matching check box. The block model variable may be numeric (for example the grade variable 'Au'') or character (for example 'Geology') variables.

Use test condition

Check this check box to use a further constraint upon a numeric block model variable, for example Fe GT 10.0 (iron value greater than 10.0). The maximum size of the condition is 132 alphanumeric characters. A list of available operators/functions is provided in Appendix D of the Core Documentation. Use bounding triangulation Check this check box to restrict the blocks by a triangulation. You will be required to specify the bounding triangulation.

Note: This option is not applicable to open or 2D triangulations.

Use bounding surfaces

Select this check box to restrict the blocks by bounding surfaces. you will be required to select the upper (top) and lower (bottom) surface triangulations.

Use bounding box (block model coordinates)

Select this check box to restrict the blocks by a box. If you select this option, you must enter the minimum and maximum coordinates for X, Y, and Z in the block model coordinates (X. Y, Z CENTRE). If the block model origin is set at 0,0,0, then real world coordinates should be entered in the x y z minimum and maximum coordinates. If the block model origin is set at real world coordinates, then enter coordinates for the bounding box that are offset a certain distance from the origin. The distance of offset will be determined by the dimensions of your bounding box. It will be the distance to the minimum and the distance to the maximum X, Y and Z from the origin of the block model.

Reverse selection

The entire block is included within the slice (blocks are displayed) by default. Select this check box to exclude (not display) the selected blocks within the slice.

Important: Each method is mutually exclusive. This means that if one method is selected, all other methods will be deselected. Only one method can be performed at once. However, the parameters for all methods can be set up and saved in a single specification file.

Distance to Triangulations

Select the required triangulation files and add them to the selection list on the right side of the panel.

Click on the name of the file(s) you want to select.
- To select a triangulation file from another location, click Browse.
- To highlight multiple files that are adjacent to each other in the list, hold down the Shift key and click the first and last file names in that section of the list.
- To highlight multiple non-adjacent files, hold down the Ctrl key while you click the file names.
Move the files to the selection list on the right side of the panel.
- Click the -> option to move the highlighted files to the selection list on the right.
- Click the >> option to move all the files to the selection list on the right.
- Click the <- option to remove a highlighted file from the selection list.
- Click the << option to remove all files from the selection list.

Wildcard

Enter any characters used as wildcards. Wildcard characters can be an * as well as regular characters. For example, if the topo* were used as a wildcard, the result would be:

topo_regional.00g
topo_no_pit.00g
topo_pit.00g
topo_dump.00g

Distance to Samples Data

Filename

Enter the filename or select the file from the drop-down. Click Browse to select a file from a different location.

Name

Automatically populated field showing the name of the field from which the Group name is taken.

Type

Automatically populated field showing the data type of the Name field.

Size

Automatically populated field showing the character limit for the Name field.

Group

Enter the group name. By default a wildcard character is here to include all entries.

Distance to Design Data

Design database

Select the design database from the drop-down list, or browse for it by click on the Browse button.

DGD layer name

Select the layer from the drop-down list.

Distance to Block Model