To use manual tie points in an alignment they must be created and measured in the images that will contain them using the Image Measurements tool.
Create and measure manual tie points
To create and measure a manual tie point, complete the following steps:
- In the Project Tree pane, select the alignment containing the manual tie point you want to create and measure and click the Alignment tab.
- On the Alignment tab, click Image Measurements.
The Image Measurements view appears.
- On the Image Measurements view, click the Manual Tie Points tab.
- In the Globe view, press Ctrl+Click at the location where the point should be created.
- On the Image Measurements view, in the Manual Tie Points table, click the row number of a manual tie point you want to measure.
The manual tie point appears in the Manual Tie Points list, the image candidates appear in the Image List table, and the first image appears in the Image viewer.
- In the Image viewer, click the exact location of the manual tie point and go to the next image.
Note:
To go to the next image, you can use keyboard shortcuts or click the image in the Image List.
Repeat this step for all the image candidates.
Note:
You must make at least two image measurements for a manual tie point to be used in an alignment.
After two manual measurements, suggestions appear automatically in the remaining images in the Image List. Automatic suggestions are image measurement suggestions that are updated in real time based on the image orientations and the previous image measurements.
Tip:
To disable individual image measurements, uncheck them in the Image List.
- Repeat the previous steps for each manual tie point you want to include in the alignment.
The manual tie points are measured and ready to be used.
You can process the alignment once all the manual tie points have been measured.
Keyboard shortcuts
You can use keyboard and mouse shortcuts to navigate, to browse, and to measure control points.
Navigation in 2D
Use keyboard shortcuts in the image viewers for help with navigating the images.
| Keyboard shortcut | Description |
|---|---|
Middle drag | Pan. |
Middle roll wheel | Zoom in and out. |
Right hold | Continuous zoom. |
Navigation in 3D
Use keyboard shortcuts in the globe viewers for help with navigating 3D scenes.
| Keyboard shortcut | Description |
|---|---|
Click | Identify features in a pop-up window. |
Click drag | Pan. |
Middle drag | Rotate and tilt the view. |
Middle roll wheel | Zoom in and out. |
Right hold | Continuous zoom. |
Image measurements
Use keyboard shortcuts in the Image viewer.
| Keyboard shortcut | Description |
|---|---|
Click | Make an image measurement. |
Shift+click | Remove an image measurement. |
Spacebar | Accept the measurement and go to the next image. Note:A manual image measurement has the highest priority. If there is no manual image measurement, the automatic suggestion is used. |
Browse lists
Use keyboard shortcuts for help with browsing lists in the control points.
| Keyboard shortcut | Description |
|---|---|
F | Go to the next image in the Image List. |
B | Go to the previous image in the Image List. |
Shift+F | Go to the next point in the Control Points list. |
Shift+B | Go to the previous point in the Control Points list. |
Image measurement status
A manual tie point must have at least two image measurements to be included in the alignment process. The status of a manual tie point is represented by a symbol that indicates the number of images it has been measured in.
The image measurement status symbols indicate the following:
- Red circle—A point has fewer than two image candidates and cannot be used in an alignment.
- Gray ring—A point has two or more image candidates but no image measurement.
- Yellow half-circle—A point has two or more image candidates and one image measurement.
- Green half-circle—A point has two or more image measurements, and there is at least one image candidate that is not measured.
- Green circle—All image candidates have measurements.