/* Last edited on 2012-07-22 11:35:49 by stolfilocal */
/* Routines to generate Postscript drawings. */

#ifndef DRAWFIGS_H
#define DRAWFIGS_H

#include <stdio.h>
#include <delaunay.h>
#include <pswr.h>
#include <r2.h>

typedef r2_t Point;

void plot_sites(PSStream *ps, float radius, int n, delaunay_site_t sites[]);
  /* Draws the points {sites[0..n-1].pt} as black dots with the given {radius} (in mm). */

void plot_points(PSStream *ps, float radius, int n, Point sites[]);
  /* Draws the points {sites[0..n-1]} as black dots with the given {radius} (in mm). */

Point perp_dir(Point *a, Point *b, float rbig);
  /* Returns a point at distance {rbig} in the direction perpendicular to 
    the segment {a-->b}, starting at its midpoint. */

void gen_figure(
    char *name,
    float xmin, float xmax, 
    float ymin, float ymax,
    void draw_proc(PSStream *ps),
    int eps_format
  );
  /* Generates a Postscript file called "{name}.ps" or "{name}.eps",
    containing a figure of given size (user coordinates) defined
    by the procedure {draw_proc}. */

#endif