From d5777f6a97822b503a4c2810a87e02d5b872c6fe Mon Sep 17 00:00:00 2001
From: John Honniball <coredump@virginmedia.com>
Date: Sat, 30 Jun 2018 01:15:25 +0100
Subject: [PATCH] Update to new coding standards. TODO: make the plot scale
 up/down properly with paper size.

---
 allover12.c | 60 ++++++++++++++++++++++++++---------------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/allover12.c b/allover12.c
index 15081a2..ae4be10 100644
--- a/allover12.c
+++ b/allover12.c
@@ -12,11 +12,11 @@
  * Page 12
  */
 
-void drawx (int nx, int ny, double r1, double r2, double offset, double angle);
-void drawy (int nx, int ny, double r1, double r2, double offset, double angle);
+void drawx(const int nx, const int ny, const double r1, const double r2, const double offset, const double angle);
+void drawy(const int nx, const int ny, const double r1, const double r2, const double offset, const double angle);
 
 
-int main (int argc, char * const argv[])
+int main(int argc, char * const argv[])
 {
    int opt;
    int nx, ny;
@@ -33,88 +33,88 @@ int main (int argc, char * const argv[])
       case 's':
       case 't':
       case 'v':
-         plotopt (opt, optarg);
+         plotopt(opt, optarg);
          break;
       default: /* '?' */
-         fprintf (stderr, "Usage: %s [-p pen] [-s <size>] [-t title]\n",
+         fprintf(stderr, "Usage: %s [-p pen] [-s <size>] [-t title]\n",
                   argv[0]);
-         fprintf (stderr, "       <size> ::= A1 | A2 | A3 | A4 | A5\n");
-         exit (EXIT_FAILURE);
+         fprintf(stderr, "       <size> ::= A1 | A2 | A3 | A4 | A5\n");
+         exit(EXIT_FAILURE);
       }
    }
 
    /* Basic drawing parameters */
-   nx = 15;
-   ny = 12;
+   nx = 8;
+   ny = 5;
    scale = 40.0;
    r1 = 30.0 * scale;
    r2 = 7.5 * scale;
    d2 = 2.0 * r2;
    
-   plotbegin (1);
+   plotbegin(1);
 
-   getplotsize (&maxx, &maxy);
+   getplotsize(&maxx, &maxy);
    
-   drawx (nx, ny, r1, r2, 0.0, 180.0);
-   drawx (nx, ny, r1, r2, -d2, -180.0);
-   drawy (nx, ny, r1, r2, -d2, -180.0);
-   drawy (nx, ny, r1, r2, 0.0, 180.0);
+   drawx(nx, ny, r1, r2, 0.0, 180.0);
+   drawx(nx, ny, r1, r2, -d2, -180.0);
+   drawy(nx, ny, r1, r2, -d2, -180.0);
+   drawy(nx, ny, r1, r2, 0.0, 180.0);
    
-   plotend ();
+   plotend();
    
    return (0);
 }
 
 
-void drawx (int nx, int ny, double r1, double r2, double offset, double angle)
+void drawx(const int nx, const int ny, const double r1, const double r2, const double offset, const double angle)
 {
    int ix, iy;
    double x1, x2;
    double y;
-   double d1 = r1 * 2.0;
-   double pitch = (r1 * 2.0) - (r2 * 2.0);
+   const double d1 = r1 * 2.0;
+   const double pitch = (r1 * 2.0) - (r2 * 2.0);
    
    for (iy = 0; iy < ny; iy++) {
       x1 = offset;
       y = (double)(iy + 1) * pitch;
-      moveto (x1, y);
-      lineto (x1, y);
+      moveto(x1, y);
+      lineto(x1, y);
 
       for (ix = 0; ix < nx; ix++) {
          x1 = ((double)ix * pitch) + offset;
          
          x2 = x1 + r1;
-         arc (x2, y, angle);
+         arc(x2, y, angle);
          
          x2 = x1 + d1 - r2;
-         arc (x2, y, angle);
+         arc(x2, y, angle);
       }
    }
 }
 
 
-void drawy (int nx, int ny, double r1, double r2, double offset, double angle)
+void drawy(const int nx, const int ny, const double r1, const double r2, const double offset, const double angle)
 {
    int ix, iy;
    double x;
    double y1, y2;
-   double d1 = r1 * 2.0;
-   double pitch = (r1 * 2.0) - (r2 * 2.0);
+   const double d1 = r1 * 2.0;
+   const double pitch = (r1 * 2.0) - (r2 * 2.0);
    
    for (ix = 0; ix < nx; ix++) {
       x = (double)(ix + 1) * pitch;
       y1 = offset;
-      moveto (x, y1);
-      lineto (x, y1);
+      moveto(x, y1);
+      lineto(x, y1);
 
       for (iy = 0; iy < ny; iy++) {
          y1 = ((double)iy * pitch) + offset;
          
          y2 = y1 + r1;
-         arc (x, y2, angle);
+         arc(x, y2, angle);
          
          y2 = y1 + d1 - r2;
-         arc (x, y2, angle);
+         arc(x, y2, angle);
       }
    }
 }