Update ARDS character rendering.

rricharz / Tek4010

Free Tektronix 4010, 4013, 4014 and 4015 terminal emulator for Raspberry Pi, Linux, macOS (Macintosh) and Windows

GNU General Public License v3.0

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Update ARDS character rendering. #9

Closed larsbrinkhoff closed 5 years ago

larsbrinkhoff commented 5 years ago

ARDS displays 80x50 characters as per the documentation.
Characters are displayed below the current position.

rricharz commented 5 years ago

The character positioning will need a bit more work. I put in a quick and dirty fix for now and do not merge your pull request. Take your time!

larsbrinkhoff commented 5 years ago

Yes, seems like things have changed since I rebased this.

larsbrinkhoff commented 5 years ago

I think you did everything I intendend to do.

One question, though. Shouldn't the /2 in

tube_y0 = (int)(efactor * (y0 + 707)) - vDotsPerChar/2;

be /efactor?

rricharz commented 5 years ago

I don't fully understand the vertical positioning af characters. There is a clear statement in the ARDS manual, but nothing in the Tek manual. And I need to look again into cairo first. For now everything appears to look reasonable, but we need to do this in a rational way.