Identify targets in full survey

To identify targets, follow the steps below:

1. After the survey has been added, right-click the scan to be registered and select Show BubbleView OR alternatively drag and drop the scan node into the 3D window. The BubbleView loads for the selected scan and the Tools toolbar becomes available at the top of the interface.

2. Load the 3D points belonging to a scan by right-clicking on the scan and selecting Load Points.

3. Navigate round the BubbleView to the first target to be picked. Select the Pick Targets button from the Tools menu and select the target center with the left mouse button. This brings up a small magnified target identification area where the target center can be selected by a left mouse click.

   

4. Alternatively, targets can also be picked in the 3D window. This is useful for registering mobile scan data such as .pts or .dp, which will not produce a BubbleView.

5. After picking the target center, the Identify Target window appears. Type in the name of the target and select OK.

   Note: The target name should exactly match the survey, for example if the target in the survey is referred to as *rr127, the name entered must be *rr127. Note also that this is case sensitive.

The user may apply a group target prefix if all targets have the same prefix. To do this, follow the steps below:

6. In the attributes window, select the appropriate group and fill in the Group target prefix option as shown below. This automatically enters the specified prefix in the Identify Target window when selecting targets. Identified targets appear as yellow crosses in the BubbleView and as black target icons under the scan node in the Registration tab. If the target number entered cannot be found in the survey, a red exclamation mark is shown over the black target icon in the Registration tab.

   

7. Repeat this process for other targets visible in the scan.

Target prediction

When two targets have been identified, other targets in the scan will begin to appear through the target prediction system. These appear as green crosses in the BubbleView and green target icons under the scan node in the Registration tab.

Select a predicted target by double-clicking on it under the scan node in the Registration tab. This will center the BubbleView and target identification zoom window on the predicted target.

Targets are sorted by ascending range so it is often best to start with the target at the top of the list.

There are four options at this stage:

• Click the center of the target to change the position and name of the predicted target and move on to the next prediction.

• Right-click the center of the target to change only the position. This accepts the predicted target name and moves on to the next prediction.

• Select the button in the target identification zoom window. This accepts both the position and the name of the predicted target and moves on to the next prediction. The "Y" button on the keyboard will also perform the same function.

• Select the button in the target identification zoom window. This does not accept the predicted target and move on to the next prediction. This is used when the target cannot actually be seen (for example, if it is on the other side of a wall or if it is too far away). The "N" button on the keyboard also performs the same function.

  Note: If a picked target has a negative effect on the scan registration (such as by causing a traffic light to turn red) then the target zoom window remains on that target and will not proceed to the next prediction. This is an alert to the user that the accuracy of the registration has been compromised and the user should address the error before moving on.