Probe (presentation)
A pinned point of an item, in the item's own frame (field-presentation §FVS-5, matrix FVW-62).
In the namespace construct::model::presentation. Declared in src/libs/libconstruct/construct/model/presentation/Probes.hpp.
Detailed description
A probe stores a point, never a value: a change of the shown field, a new solve or an axis step reads the new value at the same point.