C++ RasterElement::getParent方法代码示例

void ChippingWindow::createView()
{
   if (mpChippingWidget == NULL)
   {
      return;
   }

   RasterElement* pRaster = getRasterElement();
   if (pRaster == NULL)
   {
      return;
   }

   // Create the new raster element from the primary element of the source.
   // Note that this does not chip displayed elements if they differ from the primary element.
   // This causes a special case below where the stretch values are being applied to the chipped layer.
   RasterElement* pRasterChip = pRaster->createChip(pRaster->getParent(), "_chip",
      mpChippingWidget->getChipRows(), mpChippingWidget->getChipColumns(), mpChippingWidget->getChipBands());
   if (pRasterChip == NULL)
   {
      QMessageBox::critical(this, windowTitle(), "Unable to create a new cube!");
      return;
   }

   const RasterDataDescriptor* pDescriptor =
      dynamic_cast<const RasterDataDescriptor*>(pRasterChip->getDataDescriptor());
   VERIFYNRV(pDescriptor != NULL);

   // Create a view for the new chip
   SpatialDataWindow* pWindow = dynamic_cast<SpatialDataWindow*>(
      Service<DesktopServices>()->createWindow(pRasterChip->getName(), SPATIAL_DATA_WINDOW));
   if (pWindow == NULL)
   {
      return;
   }

   SpatialDataView* pView = pWindow->getSpatialDataView();
   if (pView == NULL)
   {
      Service<DesktopServices>()->deleteWindow(pWindow);
      return;
   }

   UndoLock lock(pView);
   if (pView->setPrimaryRasterElement(pRasterChip) == false)
   {
      Service<DesktopServices>()->deleteWindow(pWindow);
      return;
   }

   // RasterLayerImp is needed for the call to setCurrentStretchAsOriginalStretch().
   RasterLayerImp* pLayer = dynamic_cast<RasterLayerImp*>(pView->createLayer(RASTER, pRasterChip));
   if (pLayer == NULL)
   {
      Service<DesktopServices>()->deleteWindow(pWindow);
      return;
   }

   string origName = pRaster->getName();

   SpatialDataWindow* pOrigWindow = dynamic_cast<SpatialDataWindow*>(
      Service<DesktopServices>()->getWindow(origName, SPATIAL_DATA_WINDOW));
   if (pOrigWindow != NULL)
   {
      SpatialDataView* pOrigView = pOrigWindow->getSpatialDataView();
      if (pOrigView != NULL)
      {
         LayerList* pLayerList = pOrigView->getLayerList();
         if (pLayerList != NULL)
         {
            RasterLayer* pOrigLayer = static_cast<RasterLayer*>(pLayerList->getLayer(RASTER, pRaster));
            if (pOrigLayer != NULL)
            {
               // Set the stretch type first so that stretch values are interpreted correctly.
               pLayer->setStretchType(GRAYSCALE_MODE, pOrigLayer->getStretchType(GRAYSCALE_MODE));
               pLayer->setStretchType(RGB_MODE, pOrigLayer->getStretchType(RGB_MODE));
               pLayer->setDisplayMode(pOrigLayer->getDisplayMode());

               // Set the properties of the cube layer in the new view.
               // For each channel, display the first band if the previously displayed band was chipped.
               vector<RasterChannelType> channels = StringUtilities::getAllEnumValues<RasterChannelType>();
               for (vector<RasterChannelType>::const_iterator iter = channels.begin(); iter != channels.end(); ++iter)
               {
                  bool bandCopied = true;
                  DimensionDescriptor newBand;
                  DimensionDescriptor oldBand = pOrigLayer->getDisplayedBand(*iter);
                  if (oldBand.isOriginalNumberValid() == true)
                  {
                     newBand = pDescriptor->getOriginalBand(oldBand.getOriginalNumber());
                  }

                  if (newBand.isValid() == false)
                  {
                     bandCopied = false;
                     newBand = pDescriptor->getBands().front();
                  }

                  // No need to explicitly set the RasterElement here since the new view only has one RasterElement.
                  pLayer->setDisplayedBand(*iter, newBand);

//.........这里部分代码省略.........

bool ChangeUpDirection::execute(PlugInArgList* pInArgList, PlugInArgList* pOutArgList)
{
   if (pInArgList == NULL || pOutArgList == NULL)
   {
      return false;
   }
   ProgressTracker progress(pInArgList->getPlugInArgValue<Progress>(Executable::ProgressArg()),
      "Rotating data.", "app", "{11adadb9-c133-49de-8cf5-a16372da2578}");

   RasterElement* pData = pInArgList->getPlugInArgValue<RasterElement>(Executable::DataElementArg());
   if (pData == NULL)
   {
      progress.report("No data element specified.", 0, ERRORS, true);
      return false;
   }
   bool display = false;
   if (!pInArgList->getPlugInArgValue("Display Results", display))
   {
      progress.report("Unsure if results should be displayed. Invalid argument.", 0, ERRORS, true);
      return false;
   }
   double rotation = 0.0;
   SpatialDataView* pOrigView = NULL;
   if (isBatch())
   {
      if (!pInArgList->getPlugInArgValue("Rotation", rotation))
      {
         progress.report("No rotation specified.", 0, ERRORS, true);
         return false;
      }
   }
   else
   {
      pOrigView = pInArgList->getPlugInArgValue<SpatialDataView>(Executable::ViewArg());
      if (pOrigView == NULL)
      {
         progress.report("No view specified.", 0, ERRORS, true);
         return false;
      }
      GraphicLayer* pLayer = dynamic_cast<GraphicLayer*>(pOrigView->getActiveLayer());
      if (pLayer == NULL)
      {
         pLayer = dynamic_cast<GraphicLayer*>(pOrigView->getTopMostLayer(ANNOTATION));
      }
      GraphicObject* pArrow = NULL;
      if (pLayer != NULL)
      {
         std::list<GraphicObject*> objects;
         pLayer->getObjects(ARROW_OBJECT, objects);
         if (!objects.empty())
         {
            pArrow = objects.back();
         }
         if (objects.size() > 1)
         {
            progress.report("Multiple arrow objects found. Using the most recently added one.", 0, WARNING, true);
         }
      }
      if (pArrow == NULL)
      {
         progress.report("Unable to locate up direction. Add an arrow annotation and re-run this plugin.",
            0, ERRORS, true);
         return false;
      }
      LocationType ur = pArrow->getUrCorner();
      LocationType ll = pArrow->getLlCorner();
      double xlen = ur.mX - ll.mX;
      double ylen = ur.mY - ll.mY;

      // Initial rotatation value. The 90 degrees is due to the difference
      // in the "0 point" (right vs. up). Also account for explicit rotation
      // of the annotation object. Convert this to radians.
      rotation = GeoConversions::convertDegToRad(90 + pArrow->getRotation());

      // Determine a rotation adjustment based on the bounding box
      rotation += atan2(ylen, xlen);
   }

   progress.report("Rotating data.", 10, NORMAL);
   ModelResource<RasterElement> pRotated(pData->copyShallow(pData->getName() + "_rotated", pData->getParent()));
   if (pRotated.get() == NULL)
   {
      progress.report("Unable to create destination raster element.", 0, ERRORS, true);
      return false;
   }

   int defaultBadValue(0);  // the rotate method will handle setting the default bad values into the rotated raster
   if (!RasterUtilities::rotate(pRotated.get(), pData, rotation, defaultBadValue,
      INTERP_NEAREST_NEIGHBOR, progress.getCurrentProgress(), &mAbort))
   {
      // error message already reported by rotate()
      return false;
   }
   pOutArgList->setPlugInArgValue("Rotated Element", pRotated.get());

   if (display)
   {
      SpatialDataWindow* pWindow = static_cast<SpatialDataWindow*>(
         Service<DesktopServices>()->createWindow(pRotated->getName(), SPATIAL_DATA_WINDOW));
      SpatialDataView* pView = (pWindow == NULL) ? NULL : pWindow->getSpatialDataView();
//.........这里部分代码省略.........