This special set of AprilTags can be utilized not only for loop closure, but also to reference known coordinates (hard targeting) or known distances (scale bar targeting). They are only compatible with Dot3D Pro 3.1 and up. If working with Dot3D Pro 3.1 or higher, this very well may be the only set of 60 targets you should ever need.
These standard AprilTags are compatible with Phi.3D and Dot3D Pro and are only to be used for loop closure. They cannot be utilized for survey coordinates or scale. With Dot3D Pro 3.1 and up, we recommend only using the above set of 60 AprilTag Survey Targets, as they can be applied to all targeting scenarios.
These standard checkerboard targets are compatible with Phi.3D and Dot3D Pro. They can be utilized to reference known coordinates (hard targeting) or known distances (scale bar targeting). However, they require manual identification within the software. For this reason, we recommend instead using the AprilTag Survey Targets above whenever possible.