How To: Move a polygon vertex along the bearing from its originating segment
When moving a vertex that is part of a line or polygon, it is not possible to specify a bearing or direction to constrain the movement. The instructions provided describe how to move a vertex from a polygon along the bearing from its originating segment.
- In ArcMap, create a line feature class using the Create Feature Class tool.
- Draw a temporary line along the polygon segment with the desired bearing.
- Click the Create Feature button on the Editor toolbar to open the Create Features window.
- Ensure the Snapping function is enabled and Edge Snapping is selected.
- Create a line starting from one vertex on the desired polygon segment.
- Drag the line across the polygon segment, staying snapped to the edge, and press Ctrl+P (parallel).
Note: Ctrl+P constrains the digitized line to segment's bearing.
- Extend the line to the desired length and finish the sketch.
- Start an edit session on the polygon layer, and select the polygon feature using the Edit tool .
- Right-click the polygon feature > Edit Vertices to expose the polygon vertices.
- Move the polygon vertex and snap to the extended line.
- Save the edits, and stop the edit session.
- Remove the temporary line.
- ArcGIS Help: Line, Polygon, and Auto-Complete Polygon tools
- ArcGIS Help: Editing vertices and segments