1*15511Sralph /* aed.h 4.1 83/11/11 */ 2*15511Sralph /* 3*15511Sralph * Displays plot files on an AED512 graphics terminal. 4*15511Sralph */ 5*15511Sralph 6*15511Sralph #include <stdio.h> 7*15511Sralph #include <sgtty.h> 8*15511Sralph 9*15511Sralph extern char dbuf[BUFSIZ]; /* Used to buffer display characters */ 10*15511Sralph extern struct sgttyb sgttyb; /* Used to save terminal control bits */ 11*15511Sralph extern curx, cury; /* Current screen position */ 12*15511Sralph extern int xbot, ybot; /* Coordinates of screen lower-left corner */ 13*15511Sralph extern int scale; /* The number of pixels per 2**12 units 14*15511Sralph * of world coordinates. 15*15511Sralph */ 16*15511Sralph 17*15511Sralph /* The following variables describe the screen. */ 18*15511Sralph 19*15511Sralph #define GRXMAX 511 /* Maximum x-coordinate of screen */ 20*15511Sralph #define GRYMAX 482 /* Maximum y-coordinate of screen */ 21