Alignment

If there are multiple projects in a project file, you need to align the data after Scanning and generating the point cloud.

Click on the right panel of the Scan step interface and start project alignment.

Mode	Description	Note
Auto Feature Alignment	Choose Auto Feature Alignment. Select the project to be aligned in the fixed window and the floated window. Click Apply to align them.	Objects with repeated features, like a round or a ring, or that with small size are not suitable for this mode.
Manual Feature Alignment	Choose Manual Feature Alignment. Manually choose at least 3 common feature points on the data in the fixed window and the floated window respectively. Click Apply to align them.	The chosen points should not be in a line. Manual feature alignment is a supplement to auto feature alignment, and can be used when it fails.
By Markers	Choose By Markers. Select the project to be aligned in the fixed window and the floated window. Click Apply to align them.	The two projects should have at least 3 markers in common.
Manual Markers Alignment	Choose Manual Markers Alignment. Select the project to be aligned in the fixed window and the floated window. Manually choose at least 3 common markers on the data in the fixed window and the floated window respectively. Click Apply to align them.	The chosen markers should not be in a line.

Note

Manual alignment serves as an alternative method of auto alignment. You can choose it when auto alignment fails.