V065NMMA@UBVMS.BITNET ("D. THIERMAN") (09/23/89)
I need some help. I'm writing a simple program in JPI Modula2 v. 1.17 that plots points on a graph in CGA GraphMode. I would like to add titles and other comments onto the graph. When I use standard IO, the only thing that appears is is a line of dots and shorter lines on line 0 or 1. I would assume that this is my output written 1 pixel high. How can I get text to appear in regular type size, or even the 25X40 mode? Also is it possible to use the window module while in graphics, ex 1 window graphics, and another with regular text? Hope someone can help me out of this little problem. Respond to me or to the list if the problem isn't too trivial. Thanks in advance. Don V065NMMA@UBVMSD
MSRS002@ECNCDC.BITNET ("The Doctor.") (09/23/89)
When you're in a graphic mode, the bits stored in the display memory control pixels directly. When you're in text mode, the bits are mapped by a character generator into characters. The BIOS of a PC or AT will translate characters into bit patterns when you do writes in graphic mode. Since the Window module manipulates screen memory directly, it won't work in graphic mode. If you don't have the window module included, writes (in IO) will show correctly on the screen, but you don't have any cursor control. You would have to do BIOS calls to position characters on the screen. I have a module I wrote which can write "stroked" line segment characters on the screen in graphic mode. You can scale the characters horizontaly and vertically, and could create additional character fonts. If you'd like, I could send you source (three files). Tom Ruby MSRS002@ECNCDC
peter@CS.UMU.SE (Peter Lundberg) (10/06/89)
In article <INFO-M2%89092311073463@UCF1VM> you write: >on the screen in graphic mode. You can scale the characters horizontaly and >vertically, and could create additional character fonts. If you'd like, I >could send you source (three files). > > Tom Ruby > MSRS002@ECNCDC Very interesting, I've built a couple of bit-mapped (8x8,8x16) fonts but tch are nice but not that good to scale. Please send me your source and, if you like I'll send you mine. By the way, are you by any chance familiar with the Microsoft or/and Borland font format? In that case I would VERY much like to know how their fonts work. Please respond to: peter@cs.umu.se