Tools

Tools applicable to Grade Control ring design are available on the Mining | Grade Control tab.

On the Grade Control tab, in the Grade Control group:

• Click Create Dig Lines to identify optimal grade control dig lines for an open pit bench.

  

• If ore and waste parcels are defined by polygons, select Setup (Polygon) to configure the parcels for grade control.

  

• When wireframes are generated as a result of the grade control calculation, select Setup (Wireframe) to configure their attributes.

  

• Click Tag Ore to select ORE polygons or wireframes. Ore volumes are adjusted to exclude interior Waste parcels. A (+++) hatch is applied to the ORE parcels.

  

• Click Tag Waste to select WASTE polygons or wireframes. A (---) hatching is applied to the WASTE parcels. If an Ore parcel contains Waste, its volume is reported as (ORE – WASTE).

  

• Click Tag Top Surface to select a top bounding surface that will be used to limit the ore and waste parcels.

  

• Click Tag Bottom Surface to select a bottom bounding surface that will be used to limit the ore and waste parcels.

  

• Click Clear Tags to clear any grade control polygon or wireframe selections you have made.

  

• Click Save Extruded Wireframes to save the wireframes extruded from tagged polygons.

  

• Click Report to toggle automatic reporting on and off. When selected (ON), the report is automatically updated as tagged parcels (polygons or wireframes) are edited.

  

• Click Update Report to produce a grade control report for the tagged polygons or wireframes.

  

On the Grade Control tab, in the Blasting group:

• Click Blast Displacement to model a visual representation of the potential displacement of ore blocks resulting from a blast.

  

On the Grade Control tab, in the String Editing group:

• Click New Polygon to begin digitising a new closed string in the display. As an alternative, press the 'N' hot key to start a new polygon or string.

  

• Select New Polygon | New Symmetrical Polygon to digitise the radius of a circle that will be used to create a symmetrical polygon. You can then specify a start angle and the number of points (sides) of the polygon.

  

• Click Cut Polygons to split a polygon into multiple polygons using one or more cutting strings. The Cut Polygons tool can be used to create ore and waste parcels for grade control, or to subdivide a bench into blocks for scheduling.

  

• Select Cut | Polygon Networks to generate a network of closed polygons from the intersection of selected polylines and polygons.