Tektosyne 5.6.3 Released

Uploaded Tektosyne 5.6.3 with some new rectangle functions for relative point locations. The User’s Guide got a minor update as well, for the new RectLocation enumeration.

Speaking of which, this enumeration calls the edge coordinates StartX/Y and EndX/Y as in LineD/F/I, rather than Left/Right/Top/Bottom as in RectD/F/I. The LRTB model originally seemed like a good idea for the sake of BCL compatibility, but in retrospect these terms for screen drawing orientation have no place in a library that’s intended for geometric calculations. Changing them now would break a lot of code, unfortunately. Perhaps I’ll simply add the new names and mark the old ones with the Obsolete attribute…

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