== Classifications ==
The most important classification is the SYSCLS_ARMARKER, containting the identi-fier identifier and the AR-Marker side length. Two additional classifications SYSCLS_ARMARKER_DIRECTAR and SYSCLS_ARMARKER_GEO inherit from the above classiciation and are used to distinguish between the two use-cases of [[AR-Marker#Direct_Augmentation|Direct Augmentation]] and [[AR-Marker#AR-Marker Device Pose Estimation|Device Pose calculation]].
== Direct Augmentation ==