Initial revision

src/osg/DCS.cpp

@@ -0,0 +1,112 @@
+#include "osg/DCS"
+#include "osg/Registry"
+#include "osg/Input"
+#include "osg/Output"
+
+using namespace osg;
+
+RegisterObjectProxy<DCS> g_DCSProxy;
+
+DCS::DCS()
+{
+    _mat = new Matrix(
+        1.0, 0.0, 0.0, 0.0,
+        0.0, 1.0, 0.0, 0.0,
+        0.0, 0.0, 1.0, 0.0,
+        0.0, 0.0, 0.0, 1.0  );
+
+    _mat->ref();
+}
+
+
+DCS::DCS(const Matrix& mat )
+{
+    _mat = new Matrix(mat);
+    _mat->ref();
+}
+
+
+DCS::~DCS()
+{
+    _mat->unref();
+}
+
+void DCS::setMatrix(const Matrix& mat )
+{
+    *_mat = mat;
+    dirtyBound();
+}
+
+void DCS::preTranslate( float tx, float ty, float tz )
+{
+    _mat->preTrans( tx, ty, tz );
+    dirtyBound();
+}
+
+void DCS::preRotate( float deg, float x, float y, float z )
+{
+    _mat->preRot( deg, x, y, z );
+    dirtyBound();
+}
+
+bool DCS::readLocalData(Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    if (Matrix* tmpMatrix = static_cast<Matrix*>(Matrix::instance()->readClone(fr)))
+    {
+
+        if (_mat) _mat->unref();
+        _mat = tmpMatrix;
+        _mat->ref();
+
+        iteratorAdvanced = true;
+    }
+    
+    if (Group::readLocalData(fr)) iteratorAdvanced = true;
+
+    return iteratorAdvanced;
+}
+
+
+bool DCS::writeLocalData(Output& fw)
+{
+    if (_mat) _mat->write(fw);
+
+    
+    return Group::writeLocalData(fw);
+}
+
+bool DCS::computeBound( void )
+{
+    if (!Group::computeBound()) return false;
+
+    Vec3 xdash = _bsphere._center;
+    xdash.x() += _bsphere._radius;
+    xdash = xdash*(*_mat);
+
+    Vec3 ydash = _bsphere._center;
+    ydash.y() += _bsphere._radius;
+    ydash = ydash*(*_mat);
+
+    Vec3 zdash = _bsphere._center;
+    zdash.y() += _bsphere._radius;
+    zdash = zdash*(*_mat);
+    
+    _bsphere._center = _bsphere._center*(*_mat);
+    
+    xdash -= _bsphere._center;
+    float len_xdash = xdash.length();
+
+    ydash -= _bsphere._center;
+    float len_ydash = ydash.length();
+
+    zdash -= _bsphere._center;
+    float len_zdash = zdash.length();
+    
+    _bsphere._radius = len_xdash;
+    if (_bsphere._radius<len_ydash) _bsphere._radius = len_ydash;
+    if (_bsphere._radius<len_zdash) _bsphere._radius = len_zdash;
+    
+    return true;
+}