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Extend or trim a polyline feature

In the Modify Features pane, Extend or Trim Extend or Trim extends or trims polyline features where they cross a boundary of another feature. You select the segment you want to modify and click the boundary of the other feature. You can also choose to extend or trim features without a selection and click the feature you want to modify.

Extend or trim with a selection

To extend or trim a polyline feature, click Extend or Trim Extend or Trim, select the polyline feature you want to modify, and click the boundary of the other feature where you want the selected feature to be extended or trimmed.

  1. On the Edit tab in the Features group, click Modify Modify Features.

    The Modify Features pane appears.

  2. Expand Reshape and click Extend or Trim Extend or Trim.

    The tool opens in the pane.

  3. In the pane, click Select Active Select and select the polyline feature or features you want to extend or trim.

    The selected features are listed in the pane.

  4. To refine your selection, right-click a feature in the list and use the following commands on the context menu:
    • Flash Flash—Flashes the selected features in the map.
    • Zoom To Zoom to Selected—Zooms the view to the selected features.
    • Pan ToPan to Selected—Pans the view to the selected features.
    • Only Select This Unselect—Removes all other features from the selection.
    • Unselect Clear Selected—Removes the feature from the selection.
  5. Hover over the boundary of the feature that crosses the selected feature or where you want it extended.

    A dashed line appears where the selected segment will be trimmed. A solid line appears where the selected segment will be extended.

  6. Click the boundary of the feature where you want the selected feature to be extended or trimmed.

    The polyline is extended or trimmed.

Extend or trim without a selection

To extend or trim polyline features without a selection, click Extend or Trim Extend or Trim, check Allow Extend or Trim without a selection in the pane, and click the feature you want to modify.

  1. On the Edit tab in the Features group, click Modify Modify Features.

    The Modify Features pane appears.

  2. Expand Reshape and click Extend or Trim Extend or Trim.

    The tool opens in the pane.

  3. In the pane, check Allow Extend or Trim without a selection.
  4. Hover over the feature you want to extend or trim.

    A dashed line appears where the segment will be trimmed. A solid line appears where the segment will be extended.

  5. Click the dashed or solid line to modify the feature.

    The polyline is extended or trimmed.