Control Points

What are Control Points? Adding control points during a scan with a NavVis device improves point cloud accuracy, by supplying additional, external information about the device’s real-world position, automatically geo-referencing and aligning datase...

A control point is a specific point on the floor or wall of the site. It has to be marked clearly and assigned a unique identifier. The following are recommendations for control points: Distribute control points evenly. Place them more than 25m ...

A control point can be any specified point on the floor of the mapping site. Each control point must meet the following criteria: It is marked clearly with an indication of the center, such as a mark, or a cross). It has an ID that is unique w...

Note: The operator can use a control point more than once within a dataset if it is passed multiple times during scanning. Note: The term 'control points' used in this documentation are also known as SLAM anchors. Adding Control Points Addi...

For each dataset, anchors.txt contains an entry for every time a control point was added to the dataset. Manage which post-processing stage appears at each control point by setting the boolean flags in this file. During the scan, control point info...

Control point files contain the surveyed coordinates of the control points you added while you were scanning or from a total station. Control Point File Requirements The control point file must meet the following conditions: Surveyed coordina...