about AddProjection(const HomogeneousProjectionMatrixType & pMat)

Algorithms
1

WARNING: In D:\rtk\RTK-2.4.1\src\rtkThreeDCircularProjectionGeometry.cxx, line 358
DataObject (000001DBC37F0C40): Failed to AddProjection

What does this error mean?

2

@simon.rit might know.

3

It means that it did not manage to convert the projection matrix to meaningful parameters for the reconstruction. You can check the code if you’d like to know. The reason is a failure to convert the rotation matrix to angles (see here and here).