Rigid Bodys

Labelling and Reconstruction of Rigid Bodys

In Live mode we identify the markers corresponding to the rigid body in the perspective view. Directly from the perspective view we create the rigid body.

In the Assets Panel we can change the name

The different points of the rigid solid are defined in the properties panel. In this panel you can also choose the centre of the rigid solid and the orientation of its axes.

We then go to the Labelling panel, where each marker will appear with a % assignment, and we will have a list of unassigned markers. The operation is similar to that of the markersets, but with the identification of many points done.

We have to locate the points in the 3D view, at an instant in time and then switch the panel to QuickLabel mode, with labelling of the point forward and backward in time. Then we select each label and they are assigned to the points in 3D. This process is the same as creating a markerset.

The labelled markers change to white in the 3D view and disappear from Unlabeled Markers.  We have to look for all markers that appear orange at some point in time to tag them, until there are no more unlabeled markers left. After each change of a point, by tagging or deleting it, useful information has been added. A new autolabelling can be requested which will use this information and can speed up the process (This option is not available for markersets).

2. Visualisation and reconstruction

Exiting Quickedit mode, we select the markers and immediately see the x,y,z coordinates of the rigid solid.

Unlike with the Markersets, we now also have the option to view the orientations. In the Graph View a user layout is already defined, called orientations, which includes RotX, RotY, and RotZ.