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Split a feature

In the Modify Features pane, Split Split divides a feature into two or more features and copies its attribute values to the new features. Attributes constrained by attribute domains are determined by the domain split policy defined by the source geodatabase.

You can split polyline and polygon features by sketching a temporary cutting line across the feature. You can also split polyline features at specified distances, by a percentage value, or into an equal number of features.

When you split z-enabled features, the angular pitch for existing segments is preserved, and new vertices are assigned interpolated z-values.

Caution:

COGO attributes are not updated when you split COGO-enabled features with this release of ArcGIS Pro.

Sketch a cutting line

Sketching a cutting line across a polyline or polygon feature uses the active constructive tools on the editing toolbar. You can combine straight and curved segments to create complex shapes. Sketching a closed line inside a single-part polygon feature creates a nested part.

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

    The Modify Features pane appears.

  2. Expand Divide and click Split Split.

    The tool opens in the pane.

  3. Click the Interactive tab.
  4. As an alternative to selecting a feature, you can check Allow splitting without a selection and proceed to step 7.
  5. Click Active Select Active Select, and select the features you want to split.

    The selected features appear in a list, and the features highlight in the map.

    The editing toolbar appears at the bottom of the map with segment construction tools.

    Construction toolbar
  6. 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 To Pan 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
  7. On the Edit tab in the Snapping group, enable your snapping preferences.
    • Press and hold the Spacebar to temporarily turn snapping off.
  8. Sketch a cutting line across the selected features using the tools on the construction toolbar.

    The cutting line must cross each selected polyline feature and each selected polygon feature in two or more places.

  9. On the editing toolbar, click Finish Finish or press the F2 key.

Click a polyline feature

As an alternative to sketching a line, you can also click a polyline feature where you want the split to occur.

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

    The Modify Features pane appears.

  2. Expand Divide and click Split Split.

    The tool opens in the pane.

  3. Click the Interactive tab.
  4. As an alternative to selecting a feature, you can check Allow splitting without a selection and proceed to step 7.
  5. Click Active Select Active Select, and select the polyline feature you want to split.

    The selected features appear in a list, and the features highlight in the map.

    The editing toolbar appears at the bottom of the map with segment construction tools.

    Construction toolbar
  6. If you select more than one feature, click an item in the list to flash it in the map, right-click the feature you want to split, and click Only Select This Unselect on the context menu.
  7. On the Edit tab in the Snapping group, enable your snapping preferences.
    • Press and hold the Spacebar to temporarily turn snapping off.
  8. Click the selected polyline feature and click a segment where you want to split the line.
  9. On the editing toolbar, click Finish Finish or press the F2 key.

Specify a distance

Specifying a distance allows you to divide a polyline feature into two features or multiple features with equal or varying distances using the default project units. You can choose from which end of the feature to calculate the values.

For steps to change the default project units, see Add units of measure for editing.

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

    The Modify Features pane appears.

  2. Expand Divide and click Split Split.

    The tool opens in the pane.

  3. Click the By Value tab.
  4. Click Active Select Active Select, and select the polyline feature you want to split.

    The selected features appear in a list, and the features highlight in the map.

  5. If you select more than one feature, click an item in the list to flash it in the map, right-click the feature you want to split, and click Only Select This Unselect on the context menu.
  6. In the Method section, click Distance Distance.
  7. In the Direction section, click one of the following:
    • From start From start.
    • From end From end.
  8. In the Values section, choose how you want to split the polyline feature and specify the distances in the values table.
    1. Single Distance Single Distance—Splits the selected polyline feature at the specified distance from the start point or end point. Type the distance.
    2. Equal Distances Equal Distances—Splits the selected polyline feature into equal lengths using the specified distance. Type the distance and the number of repetitions.

      To distribute the remaining length equally to each feature, check Distribute remaining length equally.

    3. Varying Distances Varying Distances—Splits the selected polyline feature into multiple segments at the specified distances from the start point or end point. Type the distance.

      To create a new row and enter another distance, click Click to add new row.

    Below the values table, the numerical results of your values are updated. The pane reports values for the total length of the line feature, the total sum of your distances, and the remaining line length.

  9. Click Split.

Specify an equal number of parts

Specifying an equal number of parts creates new polyline features that are all the same length.

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

    The Modify Features pane appears.

  2. Expand Divide and click Split Split.

    The tool appears in the pane.

  3. Click the By Value tab.
  4. Click Active Select Active Select, and select the polyline feature you want to split.

    The selected features appear in a list, and the features highlight in the map.

  5. If you select more than one feature, click an item in the list to flash it in the map, right-click the feature you want to split, and click Only Select This Unselect on the context menu.
  6. In the Method section, click Equal Parts Equal Parts.
  7. In the Values section, in the Number of parts text box, type the number of equal-length parts you want to create.
  8. Click Split.

Specify a percentage

Specifying a percentage divides a polyline feature proportional to the total length of the feature. You can choose from which end of the feature to calculate the values.

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

    The Modify Features pane appears.

  2. Expand Divide and click Split Split.

    The tool appears in the pane.

  3. Click the By Value tab.
  4. Click Active Select Active Select, and select the polyline feature you want to split.

    The selected features appear in a list, and the features highlight in the map.

  5. If you select more than one feature, click an item in the list to flash it in the map, right-click the feature you want to split, and click Only Select This Unselect on the context menu.
  6. In the Method section, click Percentage Percentage.
  7. In the Direction section, click one of the following:
    • From start From start.
    • From end From end.
  8. In the Values section, in the Percentage text box, type the percentage of the total length of the polyline feature you want the new feature to contain.
  9. Click Split.