camera

ziying880606

我将osg文件添加到屏幕中使其显示出来  设camera的时候写上这句话osg文件内容就显示不出来  这是怎么回事呢  _buttonCamera->setProjectionMatrix(osg::Matrix:rtho2D(0.0f, width, 0.0f, height));



代码：
void TrInterfaceLine::initLineEnv(unsigned int width ,unsigned int height)
{
if(_buttonCamera == NULL)
{
  std::cout<<"The _buttonCamera NULL"<<std::endl;
  return;
}
else
{
     _buttonCamera->setProjectionMatrix(osg::Matrix::ortho2D(0.0f, width, 0.0f, height));
  //_buttonCamera->setViewport(-150.0f,50.0f, width,height);
  
  _buttonCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
  _buttonCamera->setViewMatrix(osg::Matrix::identity());
  _buttonCamera->setClearMask(GL_DEPTH_BUFFER_BIT);
  _buttonCamera->setRenderOrder(osg::Camera:OST_RENDER);
  _buttonCamera->setAllowEventFocus(false);
}
}

void TrInterfaceLine:oadLine()
{
   osg::MatrixTransform* P11 = new osg::MatrixTransform;
P11->setDataVariance(osg::Object::STATIC);
    P11->setMatrix(osg::Matrix::translate(osg::Vec3(0.0f,0.0f,0.0f))*osg::Matrix::scale(0.9,1,0.9));
    P11->addChild(osgDB::readNodeFile("line.osg"));
   _switchSetButton->addChild(P11);

}


osg::Camera* TrInterfaceLine::GetButtonCamera(osg::Node* node)
{
_buttonCamera->addChild(node);
return  _buttonCamera;

}

array

请检查您的投影矩阵设置是否可以正确地把场景投影到窗口中来