diff --git a/src/osgPlugins/osg/AsciiStreamOperator.h b/src/osgPlugins/osg/AsciiStreamOperator.h
index 091d497ae..9fca5768b 100644
--- a/src/osgPlugins/osg/AsciiStreamOperator.h
+++ b/src/osgPlugins/osg/AsciiStreamOperator.h
@@ -7,8 +7,12 @@
 class AsciiOutputIterator : public osgDB::OutputIterator
 {
 public:
-    AsciiOutputIterator( std::ostream* ostream )
-    : _readyForIndent(false), _indent(0) { _out = ostream; }
+    AsciiOutputIterator( std::ostream* ostream, int precision )
+    : _readyForIndent(false), _indent(0)
+    {
+        _out = ostream;
+        if (precision>0) _out->precision(precision);
+    }
     
     virtual ~AsciiOutputIterator() {}
     
diff --git a/src/osgPlugins/osg/ReaderWriterOSG2.cpp b/src/osgPlugins/osg/ReaderWriterOSG2.cpp
index 41eb55cc8..9f20d07f3 100644
--- a/src/osgPlugins/osg/ReaderWriterOSG2.cpp
+++ b/src/osgPlugins/osg/ReaderWriterOSG2.cpp
@@ -71,15 +71,29 @@ InputIterator* readInputIterator( std::istream& fin, const Options* options )
 
 OutputIterator* writeOutputIterator( std::ostream& fout, const Options* options )
 {
+    // Read precision parameter, for text & XML formats
+    int precision(-1);
+    if ( options ) {
+        std::istringstream iss(options->getOptionString());
+        std::string opt;
+        while (iss >> opt)
+        {
+            if(opt=="PRECISION" || opt=="precision") 
+            {
+                iss >> precision;
+            }
+        }
+    }
+
     if ( options && options->getOptionString().find("Ascii")!=std::string::npos )
     {
         fout << std::string("#Ascii") << ' ';
-        return new AsciiOutputIterator(&fout);
+        return new AsciiOutputIterator(&fout, precision);
     }
     else if ( options && options->getOptionString().find("XML")!=std::string::npos )
     {
         fout << std::string("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>") << std::endl;
-        return new XmlOutputIterator(&fout);
+        return new XmlOutputIterator(&fout, precision);
     }
     else
     {
diff --git a/src/osgPlugins/osg/XmlStreamOperator.h b/src/osgPlugins/osg/XmlStreamOperator.h
index c85d0a767..16fc4fe41 100644
--- a/src/osgPlugins/osg/XmlStreamOperator.h
+++ b/src/osgPlugins/osg/XmlStreamOperator.h
@@ -19,10 +19,11 @@ public:
         TEXT_LINE            // A text line, e.g. recording array elements
     };
     
-    XmlOutputIterator( std::ostream* ostream )
+    XmlOutputIterator( std::ostream* ostream, int precision )
     :   _readLineType(FIRST_LINE), _prevReadLineType(FIRST_LINE), _hasSubProperty(false)
     {
         _out = ostream;
+        if (precision>0) _sstream.precision(precision);
         _root = new osgDB::XmlNode;
         _root->type = osgDB::XmlNode::GROUP;
     }