The shape of marker must meet the following conditions.
- The features to be taught are on the same one plane
- The target has a geometry for which any rotation of ±90° or so
can be identified.(It is preferable not to be rotationally symmetric
as the left shape in "Examples of appropriate marker shape")
- The target has a geometry whose size can be identified.
Examples of appropriate marker shape
The rotation angle
cannot be identified.
The size cannot
be identified.
The rotation angle
of ±90° cannot be
identified.
Example of inappropriate marker shape