- improved: constructors and access functions for several geometric objects (e.g. more constructors, additional functions to retrieve parameters in diferent forms, iterators for polygons, ...)
- new: all geometric objects can either be drawn as graphic element (i.e. lines are straight line, even on non-linear axes), or as mathematical curve (i.e. on non-linear axes, lines become the appropriate curve representing the linear function, connecting the given start/end-points). The only exceptions are ellipses (and the derived arcs,pies,chords), which are always drawn as mathematical curves
- JKQTPGeoLine, JKQTPGeoPolyLines and JKQTPGeoInfiniteLine support decorators
- improved decorator drawing
- more decorator types
- improved example geometry
- added specific example geo_arrows
- improved documentation
- code cleanup
- for Qt 5.15: added missing #include statements that became necessary since Qt 5.15
- for Qt 5.15: fixed use of several deprecated functions
- for Qt 5.15/6: removed usage of QMatrix
new: iterator interface and improved documentation for JKQTPDatastore
reorganization of library (better separation of common code in jkqtpcommon and other code e.g. in jkqtplotter or jkqtmathtext)
