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create_path_random.c

Example showing how to create randomly placed points, including optimized measurement path between them.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "lib/gwyscan.h"
int
main(void)
{
int i, n = 1000;
double xreal = 1e-6, yreal = 1e-6;
/* Create random path in area 1x1 micron square. */
int ndata = gwyscan_create_path_random(NULL, n,
xreal, yreal, 0.0, 0.0);
double *xydata = malloc(2*ndata*sizeof(double));
xreal, yreal, 0.0, 0.0);
FILE *fp = fopen("scan_path_random.txt", "wt");
if (fp == NULL) {
printf("Error. Unable to open file for writing %s \n", strerror(errno));
return 0;
}
for (i = 0; i < ndata; i++)
fprintf(fp, "%d %g %g\n", i, xydata[2*i], xydata[2*i + 1]);
fclose(fp);
free(xydata);
return 0;
}