Summary
In ArcGIS Pro, vertices define the shape and location of a line or a polygon. The vertex count of a feature varies depending on complexity and editing precision. A feature might have a high vertex count, leading to performance issues such as data redundancy and increased storage requirements. As such, vertices can be simplified as a whole to reduce complexity. However, simplifying specific sections of the vertices is a better option. This article provides the workflow to simplify sections of polygon vertices in ArcGIS Pro.
Procedure
- Open the project in ArcGIS Pro.
- Create a line feature class. Refer to ArcGIS Pro: Create a stand-alone feature class for instructions.
- Create a line feature on the desired section of the polygon vertices.
- On the ribbon, click the Edit tab.
- On the Edit tab, in the Features group, click Create.
- In the Create Features pane, click the newly created line feature class.
- On the editing toolbar, click Trace.
Note:
Alternatively, in the Create Features pane, after selecting the line feature class, click Trace .
- Trace the vertices section.
- On the editing toolbar, click Finish.
- Generalize the line feature using the Generalize tool with the Simplify method. Refer to ArcGIS Pro: Simplify for instructions.
The map shows the generalized line feature.
- Set the snapping by layer properties. Refer to ArcGIS Pro: Turn snapping on or off by layer for more information.
- In the Contents pane, click the List By Snapping tab.
- On the List By Snapping tab, right-click the line feature class and click Make this the only snappable layer.
- Reshape the polygon. Refer to ArcGIS Pro: Reshape feature geometry for more information.
- In the map view, select the polygon.
- On the ribbon, click the Edit tab.
- On the Edit tab, in the Tools group, click Reshape.
Note:
Alternatively, in the Modify Features pane, click Reshape.
- On the editing toolbar, click Trace.
- Trace the generalized line feature.
- On the editing toolbar, click Finish.
The map shows the reshaped polygon.