The name of some datatips properties could be improved (new datatips implementation)
Reported by Samuel GOUGEON (@sgougeon)
Some of the properties of the new polyline.datatips object recently documented after the report (bug 13295) have quite unintuitive names:
.data is actually the _anchor_ of the datatip: .anchor could be clearer
.orientation is actually the _position_ of the datatip with respect to its anchor: .position could be clearer
.orientation makes thinking about an angle to tilt the datatip around its anchor. This is not proposed but could be implemented later, noticeably to get datatips aligned vertically (much more handy to tick and label extrema of a spectrum or any other curve with a lot of local extrema).
.auto_orientation would then become .auto_position
.interp_mode: this name is inheritated from the previous implementation. .at_nodes or .on_mesh or .on_grid would all be better to remember the action of this parameter.