Draw Voronoi Diagram

A Voronoi diagram is a special kind of decomposition of a space determined by distances to a specified discrete set of objects in the space, or by a discrete set of points or drillholes. It is useful here to divide the mine area up into polygon linework for the area of influence around drillholes. These are individual polyline segments, not closed polylines.

The first dialog prompts whether to use drillholes or simple CAD points for the input.

The next dialog prompts for the layer name for the diagram linework to create. The Process Method chooses between using all the drillholes at data points for the diagram or using only drillholes that have a certain strata and attribute.

When using Strata/Attribute, the next dialog asks for a strata to analyze.

The next dialog prompts for the value to process.

Prompts

Select drillholes, channel samples and strata polylines.
Select objects: Specify opposite corner: 437 found
Reading drillhole 437
Finding splits ...
Processing only strata with beds.
Select closed inclusion polyline:
There must be an inclusion polyline selected with this command.

Drop-Down Menu Location: StrataCalc
Keyboard Command: CHVORONOI
Prerequisite:
Drillholes