From 53081bc9c11c8399c0a6bc5fda170c3b976c41db Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 10 Oct 2003 09:41:04 +0000
Subject: [PATCH] Fixed the setting of the offset so that it convert degrees to
 radians.

Added setting of FOV, however, it doesn't yet function, will need to look into Producer to work out why.
---
 examples/osgcluster/osgcluster.cpp | 35 +++++++++++++++++-------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/examples/osgcluster/osgcluster.cpp b/examples/osgcluster/osgcluster.cpp
index b6cdc12bc..1451f7ba7 100644
--- a/examples/osgcluster/osgcluster.cpp
+++ b/examples/osgcluster/osgcluster.cpp
@@ -37,9 +37,9 @@ class CameraPacket {
     public:
     
         CameraPacket():_masterKilled(false) 
-    {
-        _byte_order = 0x12345678;
-    }
+        {
+            _byte_order = 0x12345678;
+        }
         
         void setPacket(const osg::Matrix& matrix,const osg::FrameStamp* frameStamp)
         {
@@ -53,21 +53,21 @@ class CameraPacket {
         void getModelView(osg::Matrix& matrix,float angle_offset=0.0f)
         {
         
-            matrix = _matrix * osg::Matrix::rotate(angle_offset,0.0f,1.0f,0.0f);
+            matrix = _matrix * osg::Matrix::rotate(osg::DegreesToRadians(angle_offset),0.0f,1.0f,0.0f);
         }
         
-    void checkByteOrder( void )
-    {
-        if( _byte_order == 0x78563412 )  // We're backwards
+        void checkByteOrder( void )
         {
-            swapBytes( _byte_order );
-        swapBytes( _masterKilled );
-        for( int i = 0; i < 16; i++ )
-            swapBytes( _matrix.ptr()[i] );
-                    
-                // umm.. we should byte swap _frameStamp too...
+            if( _byte_order == 0x78563412 )  // We're backwards
+            {
+                swapBytes( _byte_order );
+            swapBytes( _masterKilled );
+            for( int i = 0; i < 16; i++ )
+                swapBytes( _matrix.ptr()[i] );
+
+                    // umm.. we should byte swap _frameStamp too...
+            }
         }
-    }
 
         
         void setMasterKilled(const bool flag) { _masterKilled = flag; }
@@ -127,7 +127,12 @@ int main( int argc, char **argv )
     while (arguments.read("-n",socketNumber)) ;
 
     float camera_fov=45.0f;
-    while (arguments.read("-f",camera_fov)) ;
+    while (arguments.read("-f",camera_fov)) 
+    {
+        std::cout << "setting lens perspective : original "<<viewer.getLensHorizontalFov()<<"  "<<viewer.getLensVerticalFov()<<std::endl;
+        viewer.setLensPerspective(camera_fov,camera_fov*viewer.getLensVerticalFov()/viewer.getLensHorizontalFov(),1.0f,1000.0f);
+        std::cout << "setting lens perspective : new "<<viewer.getLensHorizontalFov()<<"  "<<viewer.getLensVerticalFov()<<std::endl;
+    }
 
     float camera_offset=45.0f;
     while (arguments.read("-o",camera_offset)) ;