drawing in subwindows

[Thant Tessman]

In article <1990Aug14.100020.5096 at hellgate.utah.edu>,
margaret at cs.utah.edu (Malgorzata Sturgill) writes:
> 
> Hi,
> 	I am trying to draw in subwindows ( open with swinopen ). I finally 
> managed to persuade my code to draw, but unfortunately it does not
draw where 
> I expect. I have included a piece of code to ilustrate. All this
program does 
> it opens a 300x300 parent window (black) and then opens a white
200x200 white 
> subwindow. the program is then supposed to draw the diagonals of the
subwindow 
> in red. Well it does not. It does draw a cross, but it does not fill
the whole
> window. Am I just doing something stupid?
> #include <device.h>

I'm not sure what the default behavior of subwindows is supposed to be,
but you could just add an ortho2 to your redr to get what you want:

 
 redr(){
 	winset(child);
 	reshapeviewport();

	ortho2(0.0, 200.0, 0.0, 200.0);		/* like this */

 	color(WHITE);
 	clear();
 	color(RED);
 	move2(0,0);
 	draw2(199,199);
 	move2(0,199);
 	draw2(199,0);
 }

 
> Malgorzata Marek Sturgill		margaret at cs.utah.edu
> 					margaret at ms.uky.edu
> 

thant