I'm still sad that when Apple bought NeXT we didn't get Display PostScript --- it was so nice being able to for example program a custom line stroke in Altsys V

I'm still sad that when Apple bought NeXT we didn't get Display PostScript --- it was so nice being able to for example program a custom line stroke in Altsys Virtuoso to display the length of the line and see it on-screen --- doing that in Mac OS (or Windows) required writing out a .eps or .ps file and then distilling to a PDF using Acrobat. I really wish that there was a graphical programming/drawing program which would allow one to seamlessly switch between programming .ps (or other --- METAFONT would be way cool for this) code and selecting and moving the nodes/objects which would then cause the code to update.