[PyX-devel] [PATCH 1/2] arrow: position reversed arrow correctly

[Michael J G. <mic...@us...>]

r3151 took into account the direction already but missed the fact that
arrows are positioned wrt. the constriction center now. Make it so that
a reversed arrow is positioned wrt. the constriction center also.

Signed-off-by: Michael J Gruber <mic...@us...>
---
 pyx/deco.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyx/deco.py b/pyx/deco.py
index 8cc6f95..2231899 100644
--- a/pyx/deco.py
+++ b/pyx/deco.py
@@ -472,7 +472,7 @@ class arrow(deco, attr.attr):
             constrictionlen = self.size * 1 * math.cos(math.radians(self.angle/2.0))
             arrowheadconstrictionlen = None
 
-        arclenfrombegin = (1-self.reversed)*constrictionlen + self.pos * (anormpath.arclen() - constrictionlen)
+        arclenfrombegin = (1-2*self.reversed)*constrictionlen + self.pos * (anormpath.arclen() - constrictionlen)
         direction = self.reversed and -1 or 1
         arrowhead = _arrowhead(anormpath, arclenfrombegin, direction, self.size, self.angle, arrowheadconstrictionlen)
 
-- 
1.7.10.1.702.g60a8c8a