Graph Builder: Points with identical x/y position
Graph Builder applies a clever scheme to determines which data points are actually processed.
Findings:
objects (raw x/y values) outside the plot window are not displayed (e.g. x=1)objects with IDENTICAL x and y values are displayed as a single object (the first one)selected objects are displayed (even if it's a "second" object)
analogously: objects with a marker/color row state are displayedobject...