Fix:Core:Add length scaling factor to remove drawing glitches

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk/navit@2016 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/graphics.c b/navit/graphics.c
index 1e65786..d265214 100644 (file)
--- a/navit/graphics.c
+++ b/navit/graphics.c
@@ -1013,18 +1013,19 @@ graphics_draw_polyline_as_polygon(struct graphics *gra, struct graphics_gc *gc,
        int wi, ppos = maxpoints/2, npos = maxpoints/2;
        int state,prec=5;
        int max_circle_points=20;
+       int lscale=16;
        for (i = 0; i < count; i++) {
                wi=*width;
                width+=step;
                if (i < count - 1) {
                        dx = (pnt[i + 1].x - pnt[i].x);
                        dy = (pnt[i + 1].y - pnt[i].y);
-                       l = int_sqrt(dx * dx + dy * dy);
+                       l = int_sqrt(dx * dx * lscale * lscale + dy * dy * lscale * lscale);
                        fow=fowler(-dy, dx);
                }
                if (! l) 
                        l=1;
-               calc_offsets(wi, l, dx, dy, &o);
+               calc_offsets(wi*lscale, l, dx, dy, &o);
                pos.x = pnt[i].x + o.ny;
                pos.y = pnt[i].y + o.px;
                neg.x = pnt[i].x + o.py;
@@ -1085,7 +1086,7 @@ graphics_draw_polyline_as_polygon(struct graphics *gra, struct graphics_gc *gc,
                }
                if (step) {
                        wi=*width;
-                       calc_offsets(wi, l, dx, dy, &oo);
+                       calc_offsets(wi*lscale, l, dx, dy, &oo);
                } else 
                        oo=o;
                dxo = -dx;