C++ (Cpp) SpatialDataView::getPitch Examples

Example #1

File: EastArrowObjectImp.cpp Project: wzssyqa/opticks-cmake

void EastArrowObjectImp::orient()
{
   if (isOriented() == true)
   {
      return;
   }

   GraphicLayer* pLayer = NULL;
   pLayer = getLayer();
   if (pLayer == NULL)
   {
      return;
   }

   View* pView = NULL;
   pView = pLayer->getView();
   if (pView == NULL)
   {
      return;
   }

   SpatialDataView* pSpatialDataView = NULL;
   if (pView->isKindOf("SpatialDataView") == true)
   {
      pSpatialDataView = static_cast<SpatialDataView*> (pView);
   }
   else if (pView->isKindOf("ProductView") == true)
   {
      ProductView* pProductView = static_cast<ProductView*> (pView);

      GraphicLayer* pLayoutLayer = NULL;
      pLayoutLayer = pProductView->getLayoutLayer();
      if (pLayoutLayer == pLayer)
      {
         list<GraphicObject*> viewObjects;
         pLayoutLayer->getObjects(VIEW_OBJECT, viewObjects);

         list<GraphicObject*>::iterator iter = viewObjects.begin();
         while (iter != viewObjects.end())
         {
            GraphicObject* pObject = *iter;
            if (pObject != NULL)
            {
               View* pObjectView = pObject->getObjectView();
               if (pObjectView != NULL)
               {
                  if (pObjectView->isKindOf("SpatialDataView") == true)
                  {
                     pSpatialDataView = static_cast<SpatialDataView*> (pObjectView);
                  }
               }
            }

            ++iter;
         }
      }
   }

   if (pSpatialDataView == NULL)
   {
      return;
   }

   LayerList* pLayerList = pSpatialDataView->getLayerList();
   VERIFYNRV(pLayerList != NULL);
   RasterElement* pRaster = pLayerList->getPrimaryRasterElement();
   VERIFYNRV(pRaster != NULL);
   if (!pRaster->isGeoreferenced())
   {
      return;
   }

   // Calculate the angle of the object relative to the pixel coordinates
   updateHandles();

   LocationType pixelStart = mHandles[7];

   ProductView* pProductView = dynamic_cast<ProductView*> (pView);
   if (pProductView != NULL)
   {
      // Convert to the screen coordinate system
      double dScreenX = 0;
      double dScreenY = 0;
      pLayer->translateDataToWorld(pixelStart.mX, pixelStart.mY, pixelStart.mX, pixelStart.mY);
      pProductView->translateWorldToScreen(pixelStart.mX, pixelStart.mY, dScreenX, dScreenY);
      
      // Convert to the spatial data view coordinate system
      pSpatialDataView->translateScreenToWorld(dScreenX,
         dScreenY, pixelStart.mX, pixelStart.mY);
      pLayer->translateWorldToData(pixelStart.mX, pixelStart.mY, pixelStart.mX, pixelStart.mY);
   }

   double dAngle;
   if (GeoAlgorithms::getAngleToNorth(pRaster, dAngle, pixelStart) == false)
   {
      return;
   }

   // Update the angle if the object is in the layout layer
   if (pProductView != NULL)
   {
      // Rotation
      dAngle -= pSpatialDataView->getRotation();

      // Pitch
      double dPitch = pSpatialDataView->getPitch();
      if (dPitch > 0.0)
      {
         dAngle *= -1.0;
      }
   }

   // Rotate the object
   setRotation(dAngle);

   // Update the orientation flag
   DirectionalArrowObjectImp::orient();
}