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Q: How can I add
highways to my map that are only for my area?
A: The highways included with
Political Maptitude cover the entire US. You can easily create a
new highway file which covers only your area by doing the following:
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Open your
Political Map using Political-Political Map.
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Add the Highways
to your map by choosing Add Layer from Map-Layers.
The layer you should add is called cchighway.cdf. Click Close
after you have added the layer.
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Change the
working layer of your map to Highway. Then choose
Tools-Geographic Utilities-Clip by Area. You should
Clip Using the “Precinct layer” identified on the Map tab of
Political-Settings, Selection All Records.
Click OK. You will be prompted to enter a filename for
your new highways file. Call it Highways. Click Save.
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Choose
Map-Layers, highlight the layers Highway and Highway Node,
and choose Drop Layer (click Yes to confirm). Then
click Add Layer and browse to the new geographic file
created in step 3 (Highway.dbd). Click Open.
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Click Close.
Your map will draw with highways for your area. Be sure to choose
File-Save As to save your Political map with the
highway layer.
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