From 73827ba1f4a50107272d6e465b92f356fb9e0abe Mon Sep 17 00:00:00 2001
From: erdgeist <>
Date: Sun, 9 May 2004 14:53:42 +0000
Subject: initial

---
 src/makepic.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/makepic.c

(limited to 'src/makepic.c')

diff --git a/src/makepic.c b/src/makepic.c
new file mode 100644
index 0000000..5c54cbd
--- /dev/null
+++ b/src/makepic.c
@@ -0,0 +1,62 @@
+//#define MUENCHEN
+//#define MAGDEBURG
+#define BREMEN
+
+#ifdef MUENCHEN
+/* Muenchen */
+#define GEOXMIN 5295821.0
+#define GEOXMAX 5334858.0
+#define GEOYMIN 3233408.0
+#define GEOYMAX 3270042.0
+#endif
+
+#ifdef MAGDEBURG
+/* Magdeburg */
+#define GEOXMIN 5305003.0
+#define GEOXMAX 5316797.0
+#define GEOYMIN 3682236.0
+#define GEOYMAX 3704266.0
+#endif
+
+#ifdef BREMEN
+/* Bremen */
+#define GEOXMIN 5098053.0
+#define GEOXMAX 5134674.0
+#define GEOYMIN 3784147.0
+#define GEOYMAX 3819770.0
+#endif
+
+#define GEOXSIZE (GEOXMAX - GEOXMIN)
+#define GEOYSIZE (GEOYMAX - GEOYMIN)
+
+#define PICXSIZE (2*768.0)
+#define PICYSIZE (2*768.0)
+
+#include <stdio.h>
+#include <math.h>
+
+int main( int args, char **argv)
+{
+  unsigned long pic[ (long)(PICXSIZE * (PICYSIZE+10)) ];
+  char          line[1024];
+  int           x, y;
+
+  double        xscale = (PICXSIZE / GEOXSIZE),
+                yscale = (PICYSIZE / GEOYSIZE);
+  double        scale  = xscale > yscale ? yscale : xscale;
+
+  memset( pic, 0, sizeof( pic));
+
+  while( scanf( "%ld\t%ld\n", &x, &y) == 2)
+  {
+    double myx = x - GEOXMIN, myy = GEOYSIZE - (y - GEOYMIN);
+    if( (x < GEOXMAX) && (x >= GEOXMIN) && (y < GEOYMAX) && (y >= GEOYMIN))
+      pic[ (long)(((long)(myx * scale)) + ((long)( myy * scale )) * (long)PICXSIZE) ]++;
+  }
+
+  printf( "P5\n%ld %ld\n255\n", (long)PICXSIZE, (long)PICYSIZE );
+  for( x = 0; x < PICXSIZE * PICYSIZE; x++)
+    putchar( sqrt( 32*256*256 * pic[ x ]));
+
+  return 0;
+}
-- 
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