Identify targets

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 will load for the selected scan and the Tools toolbar will become 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 picked by using the left mouse button.

   

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 is displayed. Type in the name of the target and select OK. Identified targets appear as yellow crosses in the BubbleView and as black target icons under the scan node in the Registration tab.

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

To register the scans using the currently identified targets, right-click the group node and select Register All. This function only applies to the parent group, it does not apply to any child groups.

Target prediction for partial surveys

Any targets identified that do not have a corresponding survey point will be added to the bundle node. The bundle acts as an artificial survey which is made up by the targets picked in previous scans. When the bundle is built up enough to be used, Point Cloud Manager’s target prediction system will become available as detailed below.

After two targets have been identified other targets in the scan will begin to appear through the target prediction system. These will appear as green crosses in the BubbleView window 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 also performs the same function.

• Select the button in the target identification zoom window. This will 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 will also perform the same function.

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

If scans are registered locally to each other, it is possible that the primary scan (which the others are registered to) will be classed as unregistered. As unregistered scans are not included in the AVEVA Point Cloud Manager dataset generation, you may wish to class the primary scan as registered. To do so, right-click the primary scan and select Force to Registered.