diff --git a/src/osgPlugins/osg/PointSprite.cpp b/src/osgPlugins/osg/PointSprite.cpp
index b28fdf4d2..2f6fc0695 100644
--- a/src/osgPlugins/osg/PointSprite.cpp
+++ b/src/osgPlugins/osg/PointSprite.cpp
@@ -26,13 +26,40 @@ RegisterDotOsgWrapperProxy g_PointSpriteProxy
 );
 
 
-bool PointSprite_readLocalData(Object&, Input&)
+bool PointSprite_readLocalData(Object& obj, Input& fr)
 {
-    return false;
+    bool iteratorAdvanced = false;
+
+    PointSprite& ps = static_cast<PointSprite&>(obj);
+
+    if (fr[0].matchWord("coordOriginMode"))
+    {
+        if (fr[1].matchWord("UPPER_LEFT"))
+        {
+            ps.setCoordOriginMode(PointSprite::UPPER_LEFT);
+            fr+=2;
+            iteratorAdvanced = true;
+        }
+        else if (fr[1].matchWord("LOWER_LEFT"))
+        {
+            ps.setCoordOriginMode(PointSprite::LOWER_LEFT);
+            fr+=2;
+            iteratorAdvanced = true;
+        }
+    }
+
+    return iteratorAdvanced;
 }
 
 
-bool PointSprite_writeLocalData(const Object&,Output&)
+bool PointSprite_writeLocalData(const Object& obj, Output& fw)
 {
+    const PointSprite& ps = static_cast<const PointSprite&>(obj);
+
+    switch(ps.getCoordOriginMode())
+    {
+        case(PointSprite::UPPER_LEFT): fw.indent() << "coordOriginMode UPPER_LEFT" << std::endl; break;
+        case(PointSprite::LOWER_LEFT): fw.indent() << "coordOriginMode LOWER_LEFT" << std::endl; break;
+    }
     return true;
 }