Aim:
To create a Thiessen Polygons for the given Map using the
chosen Point attributes.
Procedure:
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Step 1: Map Input
Identify the Point entities component for the location
dataset. For this session, Post Offices and Temples (Hindu Place of Worship)
were digitized from the given topographic map of Nellore & Cuddapah
Districts. The Point Entities were saved
as “Civic Areas”.
Step 2: Map
Processing
- · Digitize the Point Entities for Selected entities. Perform Attribute Editing. “Add Field” for “Name” and “Weights”. Specify the Name (Temples or PO) in the Attribute Window.
- · Locate the “Create Thiessen Polygons” tool in Analysis -> Proximity, toolbox.
- · Define the Tool Input “Civic Areas” and specify the target output folder.
- · Click “Ok” to generate the map output
Step 3: Map Display
Create Custom Map Layout with the necessary map elements and
Export map to Jpeg format
Conclusion:
Thiessian Polygon maps for the chosen polygon attributes are generated using ArcGis 10.1.
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