More clean up for synch with 0.8.42

src/osg/Transform.cpp

@@ -0,0 +1,87 @@
+#include "osg/Transform"
+
+using namespace osg;
+
+Transform::Transform()
+{
+    _matrix = new osg::Matrix();
+    _matrix->makeIdent();
+}
+
+
+Transform::Transform(const Matrix& mat )
+{
+    (*_matrix) = mat;
+}
+
+
+Transform::~Transform()
+{
+}
+
+
+void Transform::setMatrix(const Matrix& mat )
+{
+    (*_matrix) = mat;
+    dirtyBound();
+}
+
+
+void Transform::preMult( const Matrix& mat )
+{
+    _matrix->preMult( mat );
+    dirtyBound();
+}
+
+void Transform::preScale( const float sx, const float sy, const float sz )
+{
+    _matrix->preScale( sx, sy, sz );
+    dirtyBound();
+}
+
+void Transform::preTranslate( const float tx, const float ty, const float tz )
+{
+    _matrix->preTrans( tx, ty, tz );
+    dirtyBound();
+}
+
+
+void Transform::preRotate( const float deg, const float x, const float y, const float z )
+{
+    _matrix->preRot( deg, x, y, z );
+    dirtyBound();
+}
+
+const bool Transform::computeBound() const
+{
+    if (!Group::computeBound()) return false;
+
+    Vec3 xdash = _bsphere._center;
+    xdash.x() += _bsphere._radius;
+    xdash = xdash*(*_matrix);
+
+    Vec3 ydash = _bsphere._center;
+    ydash.y() += _bsphere._radius;
+    ydash = ydash*(*_matrix);
+
+    Vec3 zdash = _bsphere._center;
+    zdash.y() += _bsphere._radius;
+    zdash = zdash*(*_matrix);
+
+    _bsphere._center = _bsphere._center*(*_matrix);
+
+    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;
+}