自定義包圍框尺寸和獲取物體長寬高參數

//自行設置包圍框 

 

//默認值爲2，設置包圍盒；其他值則不渲染顯示包圍盒
void SetObjRenderStrategy(const vpObject *pObj,int mode=2)
{
    if(!pObj)
	   return ;		
		
	//包圍盒  
	vrRenderStrategyBounds *m_strategyBounds;
	m_strategyBounds = new vrRenderStrategyBounds();
	m_strategyBounds->ref();
	m_strategyBounds->setLineWidth( 2.0f  );
	m_strategyBounds->setColor( 1.0f, 0.0f, 0.0f, 1.0f );
	m_strategyBounds->setWireframeEnable(true);
	
     
	// set the render strategy on all geometries for the object
	//設置物體參數
		
	//設置長 寬  高(具體值可以自行設置) 
	float fxValue=0.2,fyValue=0.2,fzValue=0.2;
 
        //預擴大值(具體值可以自行設置)
	float fRowValue=0.05,fColValue=0.05,fTopValue=0.05;
			
    vrGeometry *geometry;
    vpObject::const_iterator_geometry it, ite = pObj->end_geometry();
    for (it=pObj->begin_geometry();it!=ite;++it) 
		{
      	 if ((*it)->isExactClassType(vsGeometry::getStaticClassType())) 
        	{
            geometry = static_cast<vsGeometry *>(*it)->getGeometry();
				
            //包圍盒本質上是一個給定左下角和右上角的盒子，
            vuBox<float>newBox;
				
            //右上角		
			newBox.m_max[0]=fxValue/2.0+fColValue;
			newBox.m_max[1]=fyValue/2.0+fRowValue;
			newBox.m_max[2]=fzValue/2.0+fTopValue;
 
            //左下角
			newBox.m_min[0]=-fxValue/2.0-fColValue;;
			newBox.m_min[1]=-fyValue/2.0-fRowValue;
			newBox.m_min[2]=-fzValue/2.0-fTopValue;
 
			geometry->setBounds(newBox);
            if(mode==2)
			   geometry->setRenderStrategy(m_strategyBounds);	
            else
               geometry->setRenderStrategy(NULL);
						
          }//end of if
       }// end of for
	
}

 

//以包圍盒的方式獲取物體的長寬高

 	/// 以包圍盒的方式獲取物體的長寬高
 void GetObjectLengthWidthHeight(const vpObject *pObj, float &Length, float & Width,float & Height )
	 {      
	    if(!pObj)
		    return ;		

        vrGeometry *geometry;
        vpObject::const_iterator_geometry it, ite = pObj->end_geometry();
        for (it=pObj->begin_geometry();it!=ite;++it) 
		{
           	if ((*it)->isExactClassType(vsGeometry::getStaticClassType())) 
            	{
              	geometry = static_cast<vsGeometry *>(*it)->getGeometry();

				//包圍盒本質上是一個給定左下角和右上角的盒子，
									
				const vuBox<float> &box=geometry->getBounds();
					
		        Width=box.m_max[0]-box.m_min[0];
				Length=box.m_max[1]-box.m_min[1];
				Height=box.m_max[2]-box.m_min[2];
                 } //end of if
         }//end of for
 }