Sitenotice: 11/29/2018: The wiki is back. It turns out, some anti-virus product on my web server had an issue with the latest version of PHP. My server techs have resolved this issue, and things should be working again. During the investigation, I did restore to a backup from September. There is a chance that any changes done since then were lost, but I do not recall any edits. --OS-9 Al
8/30/2016: Massive re-work is being done on the InfoBox Templates. Read that page to keep up with the plan for that, and adding better keyword tags (categories) to all the pages. --OS-9 Al (talk) 15:28, 31 August 2016 (CDT)
Graphics printer (Rainbow 1981-09)
|Looking for CoCo help? If you are trying to do something with your old Color Computer, read this quick reference. Want to contribute to this wiki? Be sure to read this first. This CoCo wiki project was started on October 29, 2004. --OS-9 Al|
This page was last updated on 05/2/2019. Total Pages: 647. Total Files: 937.
As part of our continuity efforts to help with printer utilities, here is a screen printer for low-res graphics using the COLOR Computer and the LP VII.
This same logic will work with other printers, too. It is a little complicated with the LP VII because of the dot matrix graphics, a$ opposed to plain graphics characters.
If you want a fatter or thinner single graphics "block," just change the first CHR$(3) in Line 12 to another number. This number controls the number of times the dot-line is repeated. You will also have to change the record CHR$(3) in the same line to the value of the first so that the spaces and "blocks" match.
Here is the short program:
10 FOR X=0 TO 127 11 FOR Y=0 TO 63 12 IF POINT(Y,X) THEN PRINT#-2,CHR$(18)CHR$(28)CHR$(3)CHR$(255);ELSE PRINT#-2,CHR$(18)CHR$(28)CHR$(3)CHR$(128); 13 NEXT Y 14 PRINT#-2,CHR$(18) 15 NEXTX