16 Sep
2018
16 Sep
'18
8:24 a.m.
On Sun, Sep 16, 2018, 9:02 AM Carlo Pisani via cctalk <cctalk at classiccmp.org wrote:
hi
so, in a description of DEC terminals, I read "VT240 and VT241 are
graphics terminals, supporting Digital?s ReGIS graphics and Tektronix
vector graphics"
what does it mean? which kind of graphics? Can they draw lines?
I am googling for "Digital?s ReGIS graphics" and "Tektronix vector
graphics", but I have only found dead links =(
The terminals were text based, until a certain escape sequence was sent.
Then it would interpret everything as a tek command. Different escape
sequences went into regis mode which were similar, but more powerful. These
were done mostly to draw plots or other graphs at the time. I believe Regis
added bitnaps to the vector graphics (which just means drawing line by only
specifying their end points and other details).
Warner
Warner