[GRASS-SVN] r59549 - grass/trunk/lib/pngdriver

[svn_grass at osgeo.org]

Author: hamish
Date: 2014-04-01 20:56:42 -0700 (Tue, 01 Apr 2014)
New Revision: 59549

Modified:
   grass/trunk/lib/pngdriver/Draw_line.c
Log:
enable vertical width for lines, still suffers from rendering issues (#1283)

Modified: grass/trunk/lib/pngdriver/Draw_line.c
===================================================================
--- grass/trunk/lib/pngdriver/Draw_line.c	2014-04-02 03:49:23 UTC (rev 59548)
+++ grass/trunk/lib/pngdriver/Draw_line.c	2014-04-02 03:56:42 UTC (rev 59549)
@@ -67,7 +67,7 @@
     struct path path;
     struct vertex vertices[5];
     double k = png.linewidth / 2;
-    int dx, dy;
+    double dx, dy;
 
     if (png.linewidth <= 1) {
 	draw_line(x1, y1, x2, y2);
@@ -80,7 +80,9 @@
     path.alloc = 5;
     path.start = -1;
 
-    /* FIXME: dx, dy used uninitialized here, lines have no vertical width */
+    /* FIXME: rendering issues (#1283) */
+    dx = fabs(x2 - x1);
+    dy = fabs(y2 - y1);
 
     if (dy > dx) {
 	path_move(&path, x1 - k, y1);