Create segments by streaming vertices in a stereo map

The Streaming tool can stream vertices at the elevation height of the stereo cursor when it is used in a stereo map. This tool is available in the Create Features pane with editing templates for line features and on the context menu when you right-click a map.

Fixed cursor mode locks the cursor to the center of the screen while allowing you to pan, zoom, or draw freely. Press F8 to turn fixed cursor mode on or off. As you stream vertices, you can pause streaming by clicking the map and continue sketching using other construction tools.

When you stream vertices in a stereo map, consider the following:

• Scroll the mouse wheel to set the cursor height.
• Press B to set the stereo cursor height to the z-value stored with the image at the cursor location.
• To change the streaming tolerance, default snapping mode, or other optional settings, right-click and choose Streaming Options or press O.

For steps to use this tool in a 2D map, see Create segments by streaming vertices.

Stream vertices

To stream z-enabled vertices in a stereo map, complete the following steps:

1. Start ArcGIS Pro and open the project in which you are compiling stereo feature data.
2. Turn on stereo display and insert a stereo map.
3. Click the stereo map containing the feature layers you are editing or add the layers to the map.

   Tip:

   Before editing features, specify which layers can be edited, confirm that the coordinate system assigned to the active map is suitable for the type of edits you're performing, and enable the snap agents that allow you to work effectively.

   For a basic checklist of settings, see Configure settings for editing.

4. To turn fixed cursor mode on or off, press F8.

   Fixed cursor mode locks the cursor to the center of the screen while allowing you to pan, zoom, or draw freely.

5. Click the ribbon Edit tab and click Create in the Features group.

   The Create Features pane appears.

6. Click a line or polygon feature template in the Create Features pane.

   To override attribute values, click the Active Template button .

   Tip:

   When using polygon templates, you can check the Modify existing polygons to prevent overlapping check box to automatically clip existing polygon features on the same layer and create coincident boundaries.

7. Click the Streaming tool .

   The construction toolbar appears in the current map.

8. Scroll the mouse wheel to set the stereo cursor height.

   Alternatively, hover over the image and press B to set the cursor height to the z-value stored with the image at the cursor location.

   The updated cursor z-value appears in the coordinate display at the bottom of the stereo map view.

   

9. Click the map to start streaming.
10. Move the pointer across the map to stream segments.

    Click the map to pause and resume streaming.

    Press the Spacebar to temporarily turn on or turn off snapping, depending on the optional setting.

    Tip:

    To sketch other segment types, click the map and click the tool on the construction toolbar. To resume streaming, right-click, choose Streaming on the context menu, and click the map.

11. Click the map to stop streaming.
12. Click Finish or press the F2 key to create the segment.

Change streaming options

Streaming options are set before you start sketching. You can change the streaming tolerance, smooth segments with Bezier curves, group vertices into a single Undo step , and invert the default snap mode.

To change streaming options, complete the following steps:

1. Click a line or polygon feature template in the Create Features pane, and click the Streaming tool .
2. Right-click the map and choose Streaming Options or press O.

   The Streaming Options dialog box appears.

3. Click the Streaming tolerance text box, type a value and choose the units.

   The default tolerance is zero (0) and creates overlapping vertices.

4. Check or uncheck the Smooth check box.

   Checked	Create Bézier curves for segments when streaming vertices.
   Unchecked	Create straight segments when streaming vertices.

5. Check or uncheck the Use snapping settings check box.

   Checked	Use the current snapping settings by default and press the spacebar to temporarily turn them off until the sketch is finished.
   Unchecked	Turn off the current snapping settings by default and press the spacebar to temporarily use them until the sketch is finished.

6. Check or uncheck the Group vertices for Undo sketch operations check box.

   Checked	Group the specified number of vertices into a single Undo step. The default number is 50.
   Unchecked	Don't group vertices and Undo each vertex.

7. Click OK.

Keyboard shortcuts

Keyboard shortcuts for this tool in a stereo map are described in the following table:

Create by streaming in a stereo map

Keyboard shortcuts for the Streaming construction tool in a stereo map

Keyboard shortcut	Action	Comment
O	View or change optional settings.	Open the Streaming options dialog box.
B	Set the stereo cursor height to the z-value stored with the image at the cursor location.	Alternatively, you can scroll the mouse wheel to set the cursor height. The updated z-value of the stereo cursor appears in the coordinate display at the bottom of the stereo map view.
F8	Switch between fixed cursor mode and standard cursor mode.	Fixed cursor mode locks the cursor to the center of the screen while allowing you to pan, zoom, or draw freely.
Spacebar	Temporarily turn on snapping.	By default, snapping is automatically turned off until the sketch is finished and temporarily turned on with the Spacebar. You can invert this setting and turn on snapping by default and use the Spacebar to temporarily turn it off.