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Create arc segments and curves

When you create new polyline or polygon features using feature templates, or modify them using tools that create segments, the construction toolbar appears in the current map. The toolbar includes Arc Segment Arc Segment, End Point Arc Segment Endpoint Arc Segment, Tangent Curve Segment Tangent Arc, and Bézier Curve Bezier Curve. These tools create circular arcs and curved segments.

For steps to change a segment to a line or an arc, see Modify feature segments.

Arc segment

To create an arc segment, click Arc Segment Arc Segment. Create a start point, create a second point that defines the path of the arc, press the R key to type the radius or click the map and create the endpoint.

Note:

If you are creating a new polyline or polygon feature and you have created at least one vertex, skip to step 7.

  1. In the Catalog pane, do one of the following to add the layer to your map:
    • Expand Databases Databases, expand the database containing your data, and drag the feature class onto the map.
    • To create a new data source, right-click the default database, click New, click Feature Class Polygon feature class, type the feature class name, choose the geometry type, select the coordinate system, and click Run Run.

    The layer is added to the current map, and a feature template with default settings is automatically created.

  2. On the Edit tab, in the Features group, click Create Create Features.

    The Create Features pane appears.

  3. In the pane, click a polygon feature template.

    The template expands to show the tool palette, and the construction toolbar appears in the current map.

    Construction toolbar
  4. Next to the tool palette, click the forward arrow Forward.

    The tool palette and the feature attribute table for the active template appear in the pane.

  5. In the attribute table, type the values you want to apply to the new feature.
    • For group templates, click the template symbol to show the attribute table.
  6. On the Edit tab, in the Snapping group, click the Snapping List By Snapping arrow and enable your snapping preferences.
    • As you create the feature, press and hold the Spacebar to temporarily turn snapping off.
  7. On the construction toolbar, click Arc Segment Arc Segment.
  8. If you are working with z-enabled features, on the Edit tab, in the Elevation group, choose how z-values are added to your features.
    Note:

    For steps to add z-values when creating z-enabled features, see Specify an elevation for 3D features.

  9. Create the start point using one of the following methods:
    • Click the map.
    • Right-click and use the context menu to specify x,y,z coordinates or distance and direction.
    • Use the last vertex of the previous segment as the start point.
  10. Create a second point that defines the path of the arc using one of the following methods:
    • Click the map.
    • Right-click and use the context menu to specify x,y,z coordinates or distance and direction.

    The path of the arc locks to the new point.

  11. To specify a radius, press the R key, type the radius, and press Enter.

    The arc locks to the specified radius.

  12. Create the end point using one of the following methods:
    • Click the map.
    • Right-click and use the context menu to specify x,y,z coordinates or distance and direction.
  13. To continue creating other segments, use the tools on the construction toolbar.
  14. To finish the feature, right-click and click Finish Finish, or press the F2 key.

End point arc segment

To create an end point arc segment, click End Point Arc Segment Endpoint Arc Segment. Create the start point and end point, and drag and click the pointer to shape the arc or press the R key and type the radius.

Note:

If you are creating a new polyline or polygon feature and you have created at least one vertex, skip to step 7.

  1. In the Catalog pane, do one of the following to add the layer to your map:
    • Expand Databases Databases, expand the database containing your data, and drag the feature class onto the map.
    • To create a new data source, right-click the default database, click New, click Feature Class Polygon feature class, type the feature class name, choose the geometry type, select the coordinate system, and click Run Run.

    The layer is added to the current map, and a feature template with default settings is automatically created.

  2. On the Edit tab, in the Features group, click Create Create Features.

    The Create Features pane appears.

  3. In the pane, click a polygon feature template.

    The template expands to show the tool palette, and the construction toolbar appears in the current map.

    Construction toolbar
  4. Next to the tool palette, click the forward arrow Forward.

    The tool palette and the feature attribute table for the active template appear in the pane.

  5. In the attribute table, type the values you want to apply to the new feature.
    • For group templates, click the template symbol to show the attribute table.
  6. On the Edit tab, in the Snapping group, click the Snapping List By Snapping arrow and enable your snapping preferences.
    • As you create the feature, press and hold the Spacebar to temporarily turn snapping off.
  7. On the construction toolbar, click End Point Arc Segment Arc Segment.
  8. If you are working with z-enabled features, on the Edit tab, in the Elevation group, choose how z-values are added to your features.
    Note:

    For steps to add z-values when creating z-enabled features, see Specify an elevation for 3D features.

  9. Create the start point and the end point of the arc using one of the following methods:
    • Click the map.
    • Right-click and use the context menu to specify x,y,z coordinates or distance and direction.
    • Use the last vertex of the previous segment as the start point.

    The path of the arc locks between the start and end points.

  10. Shape the arc using one of the following methods:
    • Drag the pointer and click the map.
    • Press the R key, type the radius, press Enter, drag the pointer to shape the arc, and click the map.
  11. To continue creating other segments, use the tools on the construction toolbar.
  12. To finish the feature, right-click and click Finish Finish, or press the F2 key.

Tangent curve segment

As you create segments, to create a curve segment that starts tangent to the currently active segment, click Tangent Curve Segment Tangent Arc. Drag the pointer to shape the arc or press the R key to type a radius, and create the end point.

Note:

If you are creating a new polyline or polygon feature and you have created at least one vertex, skip to step 7.

  1. In the Catalog pane, do one of the following to add the layer to your map:
    • Expand Databases Databases, expand the database containing your data, and drag the feature class onto the map.
    • To create a new data source, right-click the default database, click New, click Feature Class Polygon feature class, type the feature class name, choose the geometry type, select the coordinate system, and click Run Run.

    The layer is added to the current map, and a feature template with default settings is automatically created.

  2. On the Edit tab, in the Features group, click Create Create Features.

    The Create Features pane appears.

  3. In the pane, click a polygon feature template.

    The template expands to show the tool palette, and the construction toolbar appears in the current map.

    Construction toolbar
  4. Next to the tool palette, click the forward arrow Forward.

    The tool palette and the feature attribute table for the active template appear in the pane.

  5. In the attribute table, type the values you want to apply to the new feature.
    • For group templates, click the template symbol to show the attribute table.
  6. On the Edit tab, in the Snapping group, click the Snapping List By Snapping arrow and enable your snapping preferences.
    • As you create the feature, press and hold the Spacebar to temporarily turn snapping off.
  7. Click Line Line or Polygon Polygon and create at least one straight line or arc segment.
  8. On the construction toolbar, click Tangent Curve Segment Tangent Arc.

    The tangent curve uses the last vertex of the previous segment as the start point.

  9. Define the path of the arc using one of the following methods:
    • Drag the pointer and click the map.
    • Press the R key, type the radius, press Enter, drag the pointer to shape the arc, and click the map.
  10. To continue creating other segments, use the tools on the construction toolbar.
  11. To finish the feature, right-click and click Finish Finish, or press the F2 key.

Bézier curve

To create a Bézier curve, click Bézier Curve Bezier Curve. Create the start point, drag the pointer and click the map to create the first control handle, drag the pointer again to define the path of the curve, drag the pointer a third time to shape the curve, and click the map to create the second control handle.

The direction and distance of the handle determines the final shape of the curve. You can repeat these steps to create a series of Bézier curves that form a spline.

Tip:

To reshape a finished Bézier curve, use Vertices Edit Vertices and click and drag the end points of the control handles.

  1. In the Catalog pane, do one of the following to add the layer to your map:
    • Expand Databases Databases, expand the database containing your data, and drag the feature class onto the map.
    • To create a new data source, right-click the default database, click New, click Feature Class Polygon feature class, type the feature class name, choose the geometry type, select the coordinate system, and click Run Run.

    The layer is added to the current map, and a feature template with default settings is automatically created.

  2. On the Edit tab, in the Features group, click Create Create Features.

    The Create Features pane appears.

  3. In the pane, click a polygon feature template.

    The template expands to show the tool palette, and the construction toolbar appears in the current map.

    Construction toolbar
  4. Next to the tool palette, click the forward arrow Forward.

    The tool palette and the feature attribute table for the active template appear in the pane.

  5. In the attribute table, type the values you want to apply to the new feature.
    • For group templates, click the template symbol to show the attribute table.
  6. On the Edit tab, in the Snapping group, click the Snapping List By Snapping arrow and enable your snapping preferences.
    • As you create the feature, press and hold the Spacebar to temporarily turn snapping off.
  7. Click Line Line or Polygon Polygon.

    The construction toolbar appears. By default, it displays at the bottom of the active map.

  8. On the construction toolbar, click Bézier Curve Bezier Curve.
  9. Create the start point using one of the following methods:
    • Click the map.
    • Right-click and use the context menu to specify x,y,z coordinates or distance and direction.
    • Use the last vertex of the previous segment as the start point.
  10. Drag the pointer and click the map to create the first two-point control handle.
  11. Drag the pointer again to define the path of the curve and click the map.
  12. Drag the pointer once more to shape the curve and click the map to create the second control handle.
  13. To continue creating other segments, use the tools on the construction toolbar.
  14. To finish the feature, right-click and click Finish Finish, or press the F2 key.

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