1 #ifndef lint 2 static char sccsid[] = "@(#)open.c 4.1 (Berkeley) 11/10/83"; 3 #endif 4 5 /* 6 * Displays plot files on a BBN bitgraph terminal. 7 */ 8 9 #include <signal.h> 10 #include "bg.h" 11 12 int currentx = 0; 13 int currenty = 0; 14 double lowx = 0.0; 15 double lowy = 0.0; 16 double scale = 1.0; 17 18 openpl() 19 { 20 int closepl(); 21 22 /* catch interupts */ 23 signal(SIGINT, closepl); 24 currentx = 0; 25 currenty = 0; 26 27 space(0, 0, XMAX, YMAX); 28 } 29