User Manual

2DRing
dialog (Figure 2.2). The new plane can then be created by
clicking the "add new ring plane" button.
Definition of Boundaries
2DRing allows the user to create blast design region or
boundaries with a number of simple CAD functions. The
procedure for defining this geometry includes both the
importation of string geometry from other applications (see
Chapter 1) and the creation of string lines and string
polygons. Text labels can also be used to identify regions in
the overall design area.
Area Mode
String Line and Polygon Creation
The boundaries of a drilling drive or the outline of a
particular stope can be created in Area mode. This option is
accessed via the Mode+Area menu item or alternatively by
clicking on the Area Mode Icon.
The area mode function allows the user to create a string
outline. A string is a collection of two or more points
joined together by lines. Strings may either be opened or
closed (polygon). A closed string is defined as starting and
ending at a common point.
Single
Line Mode
There are two ways of creating a string outline to define the
geometry of the area to be blasted, namely:
Single line segment drawing: This method allows the
user to draw single line segments to define a single line
or a polygon. This option is activated by clicking on the
single line mode icon.
To draw a line, place the cursor at the position of the start
of the line, click the mouse or press [enter], move the
cursor to the position of the end of the line and click again
or press [enter].
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