Пример #1
0
void MapWindow::UpdateCaches(bool force) {
    // map was dirtied while we were drawing, so skip slow process
    // (unless we haven't done it for 2000 ms)

    if (MapWindow::ForceVisibilityScan) {
        force = true;
        MapWindow::ForceVisibilityScan = false;
    }

    // have some time, do shape file cache update if necessary
    LockTerrainDataGraphics();
    SetTopologyBounds(DrawRect, force);
    UnlockTerrainDataGraphics();
}
Пример #2
0
void MapWindow::UpdateCaches(bool force) {
  // map was dirtied while we were drawing, so skip slow process
  // (unless we haven't done it for 2000 ms)
  #if RASTERCACHE
  DWORD fpsTimeThis;
  static DWORD fpsTimeMapCenter = 0;
  #endif

  if (MapWindow::ForceVisibilityScan) {
    force = true;
    MapWindow::ForceVisibilityScan = false;
  }

  // have some time, do shape file cache update if necessary
  LockTerrainDataGraphics();
  SetTopologyBounds(MapRect, force);
  UnlockTerrainDataGraphics();

  #if RASTERCACHE
  // JP2 no more supported, however if rastercache will ever be enabled..
  // Must do this even if terrain is not displayed, because
  // raster terrain is used by terrain footprint etc.

  fpsTimeThis = ::GetTickCount(); // 100115
  if (force || ( (fpsTimeThis - fpsTimeMapCenter) > 5000)) {

    fpsTimeMapCenter=fpsTimeThis; 
    RasterTerrain::ServiceTerrainCenter(DrawInfo.Latitude, 
                                        DrawInfo.Longitude);
  }
  
  fpsTimeThis = ::GetTickCount();
  static DWORD fpsTimeLast_terrain=0;

  if (EnableTerrain) {
	if (RenderTimeAvailable() || ((fpsTimeThis-fpsTimeLast_terrain)>5000) || force) {
		fpsTimeLast_terrain = fpsTimeThis;
		RasterTerrain::ServiceCache();
	}
  }
  #endif // RASTERCACHE
}