I hate it when that happens. :-) Sorry, I dropped the tarball in the wrong place, please try again.
Francisco J Ballesteros wrote: > Sorry, > > not in server. > > On Dec 18, 2007 4:06 PM, John DeGood <[EMAIL PROTECTED]> wrote: > >> Ron Minnich encouraged me to bring my incomplete little graphical clock >> program to IWP9, and then he encouraged me to complete it. So please >> blame Ron for this: >> >> http://degood.org/plan9/mclock.tar >> >> History of this clock program: in the 1970s Dave Robinson, an EE >> professor at UDel, wrote a cute graphical clock program in PDP-11 BASIC >> that displayed on a Tektronix vector graphics terminal >> <http://www.selectric.org/tek4010/index.html> in his lab. The clock >> image was drawn as vectors, with the filled areas composed of hundreds >> of side-by-side vectors. >> >> In 1982 I got a printout of the program from Dave, typed in all the >> vector coordinates, and then rewrote the program in FORTRAN for an HP >> 3000 timeshared minicomputer, outputting escape sequences to an HP 2648 >> raster graphics terminal >> <http://www.atariarchives.org/cgp/Ch02_Sec16_14.php> in my lab. >> >> Flash forward ~25 years: I stumbled across a line printer listing (on >> green bar paper, of course) of my 1982 program in my basement, and on a >> whim decided to rewrite it in C for Plan 9 using draw(2). It looked >> very retro. I tried adding color, but it still wasn't satisfying >> because the hundreds of vectors used for area fill weren't compatible >> with variable size windows. So I tediously determined bounding polygons >> for each of the filled areas and called fillpoly() instead. >> >> Magic feature: when the clock diameter is > 600 pixels (e.g. >> fullscreen) the linewidth increases from thick=0 (1 pixel) to thick=1 (3 >> pixels) to make the clock more readable from a distance. >> >> Have fun. >> >> John >> >> >> > >
