plottour.c

Travelling saleman by C++

/*
 *  plotTour.c
 *  
 * Phil Cox, B00XXXXXX
 * Login: pcox
 * CSCI2132: Assignment 3
 *
 */

#include <stdio.h>
#include "list.h"

void plotTour(struct node *tour)
{
	/*
	 *	Print postscript code depicting a given tour
	 */

	struct node	*curr;

	if (tour == NULL)
		return;

	printf("%%!\n50 50 translate\n0 0 512 512 rectstroke\n");
	
	/* plot the tour's edges */
	printf("%5.1f %5.1f moveto\n", 512.0*tour->x, 512.0*tour->y);
	printf("1.0 0.0 0.0 setrgbcolor\n");
	for (curr=tour->next; curr != NULL; curr=curr->next)
		printf("%5.1f %5.1f lineto\n",
			512.0*curr->x, 512.0*curr->y);
	printf("closepath stroke\n");
	
	/* plot dots marking the locations of the nodes */
	printf("0.0 0.0 0.0 setrgbcolor\n");
	for (curr=tour; curr!=NULL; curr = curr->next)
	{
		printf("newpath\n");
		printf("%5.1f %5.1f 2 0 360 arc\n",
			512.0*curr->x, 512.0*curr->y);
		printf("closepath\nfill\n");
	}

	printf("showpage\n");
}