From Bob Kuehne, add usage of version number to differentiate between

rev's of the LOD.

src/osgPlugins/ive/DataInputStream.cpp

@@ -113,6 +113,11 @@ bool DataInputStream::readBool(){
     return c!=0;
 }
 
+unsigned int DataInputStream::getVersion()
+{
+    return( _version );
+}
+
 char DataInputStream::readChar(){
     char c;
     _istream->read(&c, CHARSIZE);

src/osgPlugins/ive/DataInputStream.h

@@ -30,6 +30,7 @@ class DataInputStream{
 public:
 	DataInputStream(std::istream* istream);
 	~DataInputStream();
+	unsigned int getVersion();
 	bool readBool();
 	char readChar();
 	unsigned char readUChar();

src/osgPlugins/ive/IveVersion.h

@@ -8,7 +8,8 @@
    compatibility (if implemented).  VERSION is 
    stored in the 2nd 4 bytes of the file */
 
-#define VERSION 0x00000002
+#define VERSION_0002 0x00000002
+#define VERSION 0x00000003
 
 
 /* The BYTE_SEX tag is used to check the endian

src/osgPlugins/ive/LOD.cpp

@@ -53,6 +53,7 @@ void LOD::read(DataInputStream* in){
 	if(id == IVELOD){
 		// Read LOD's identification.
 		id = in->readInt();
+
 		// If the osg class is inherited by any other class we should also read this from file.
 		osg::Group*  group = dynamic_cast<osg::Group*>(this);
 		if(group){
@@ -62,12 +63,14 @@ void LOD::read(DataInputStream* in){
 			throw Exception("LOD::read(): Could not cast this osg::LOD to an osg::Group.");
 		// Read LOD's properties
 
+        if ( in->getVersion() > VERSION_0002 )
                 setRadius(in->readFloat());
 
 		// Read centermode
 		setCenterMode((osg::LOD::CenterMode)in->readInt());
 		setCenter(in->readVec3());
 
+        if ( in->getVersion() > VERSION_0002 )
             setRangeMode((RangeMode)in->readInt());
 
 		// Read rangelist