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- /* This file contains the tektronix dependent routines for use with plplot. */
-
- /* Define graphics control characters. */
- #define BS 8
- #define HT 9
- #define LF 10
- #define VT 11
- #define FF 12
- #define CR 13
- #define CAN 24
- #define EM 25
- #define ESC 27
- #define FS 28
- #define GS 29
- #define US 31
-
- #include <stdio.h>
- #include "plplot.h"
-
- static FILE *OutFile;
- static int FirstClear=1;
-
- /* Open file. */
- void tekini()
- {
- char FileName[80];
-
- printf("Enter file to receive tektronix graphics commands. ");
- scanf("%s",FileName);
-
- if ((OutFile = fopen(FileName,"w")) == NULL) {
- printf("Error opening %s \n",FileName);
- exit(1);
- }
- }
-
- /* Sets the tektronix to text mode */
- void tektex()
- {
- fprintf(OutFile,"%c",US);
- }
-
- /* Sets the tektronix to graphics mode */
- void tekgra()
- {
- /* Nothing has to be done here */
- }
-
- /* Clears the tektronix screen */
- void tekclr()
- {
- if(FirstClear)
- FirstClear = 0;
- else
- fprintf(OutFile,"%c%c",ESC,FF);
- }
-
- /* Change color */
- void tekcol(colour)
- int colour;
- {
- }
-
- /* Draws a line in the current colour from (x1,y1) to (x2,y2) */
- void teklin(x1,y1,x2,y2)
- int x1,y1,x2,y2;
- {
- int hy,ly,hx,lx;
-
- fprintf(OutFile,"%c",GS);
- hy = y1/32 + 32;
- ly = y1 - (y1/32)*32 + 96;
- hx = x1/32 + 32;
- lx = x1 - (x1/32)*32 + 64;
- fprintf(OutFile,"%c%c%c%c",hy,ly,hx,lx);
- hy = y2/32 + 32;
- ly = y2 - (y2/32)*32 + 96;
- hx = x2/32 + 32;
- lx = x2 - (x2/32)*32 + 64;
- fprintf(OutFile,"%c%c%c%c",hy,ly,hx,lx);
- }
-
- /* Close file */
- void tektid()
- {
- fclose(OutFile);
- }
-
-