Creating a new fence
To create a new fence you select either the boundary fence or blast fence editing tool from the toolbar.
Once this tool is selected, you left click once at the location you'd like to place each vertex of the
fence. The fence is draw in real time as you place each vertex. To finish your fence, you should double
click when placing the last vertex. You will know that the fence is finished because the last vertex will
become selected, thereby highlighting it and placing it latitude and longitude in the Vertex Position text
fields in the Fence Data display.
Modifying an Existing Fence Vertex
You can modify an existing fence by moving its various vertices. This can be done using either the fence
editing tool or the default pointer tool. Simply click on the desired vertex and drag it to its new location.
Specifying the Exact Latitude/Longitude of a Vertex
You can specify the exact latitude and longitude of any vertex. To do so, select the vertex by clicking
on it using either the default pointer tool or the fence editing tool. The current latitude and longitude
of the vertex will be displayed in the Fence Data display. You can then type in a new latitude or longitude
position for the vertex. To record the new data once it is entered hit the return key or the tab key.
Adding a Vertex to a Fence
Vertices can be added to an existing fence by using the shift key. First, choose the fence editing tool and
then select the fence to which the vertex should be added. Then place the cursor over the part of the fence
where you wish to add the vertex. Hold down the shift key and click the left mouse button to add the new
vertex.
Removing a Vertex From a Fence
Vertices can be removed from a fence by using the control key. First, choose the fence editing tool and then
select the fence that contains the vertex you wish to remove. Then hold down the control key and click the
vertex you wish to remove. The vertex will be removed from the fence. Note that if your fence contains only
two vertices and you delete one of them you will end up with an invisible fence that contains one vertex.
This will cause an error during compilation, so it is advised that you run the clean up options before compiling.
Combining Two Fences
You can combine two fences into one by holding down the shift key when moving a vertex. To do so, select the
end vertex of the first fence, using the pointer tool or fence editing tool. Then drag this vertex over the
end of another fence and hold down the shift key when you release the mouse button. The two fences will be
combined into one longer fence. Note that you can only join fences at their ends. Attempting to join a fence
to the middle of another fence has no effect.
Cutting A Fence
You can easily cut a fence into two sections using the scissors option. First, select a vertex of the fence
using either the pointer tool or fence editing tool. The information about the vertex should be displayed in
the Fence Data display. Then click the scissors button, or right click and choose "Break Fence After Here"
from the drop down. The fence will be cut into two fences right after the selected vertex. Note that the
fence segment just after the selected vertex will disappear when the fence is cut.
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