February 2013
Intermediate to advanced
304 pages
6h 45m
English
Content preview from Programming ArcGIS 10.1 with Python CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Updating layer symbology
There may be times when
you will want to change the symbology of a layer in a map document. This can be accomplished through the use of the UpdateLayer() function, which can be used to change the symbology of a layer as well as various properties of a layer. In this recipe, you will use the UpdateLayer() function to update the symbology of a layer.
Getting ready
The arcpy.mapping module also gives you the capability of updating layer symbology from your scripts by using the UpdateLayer() function. For example, you might want your script to update a layer's symbology from a graduated color to a graduated symbol, as illustrated in the following screenshot. UpdateLayer() can also be used to update various layer properties, ...
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