// Copyright 2009, Google Inc. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // 1. Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // 2. Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // 3. Neither the name of Google Inc. nor the names of its contributors may be // used to endorse or promote products derived from this software without // specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO // EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // This file contains the declaration of the ComputeFeatureLookAt function. #ifndef KML_ENGINE_FEATURE_VIEW_H__ #define KML_ENGINE_FEATURE_VIEW_H__ #include "kml/dom/abstractview.h" #include "kml/dom/feature.h" namespace kmlengine { class Bbox; // Returns a element computed from the spatial extents of a feature. // The LookAt's altitude, heading and tilt are set to 0.0, and the altitudeMode // is set to relativeToGroud. The range is computed such that the feature will // be within a viewport with a field of view of 60 deg and is clamped to a // minimum of 1,000 meters. Returns NULL if the feature has no specified // AbstractView and none can be computed. kmldom::LookAtPtr ComputeFeatureLookAt(const kmldom::FeaturePtr& feature); // Returns a element computed from the spatial extents of a Bbox. // See ComputeFeatureLookAt for the details of how the LookAt is created. kmldom::LookAtPtr ComputeBboxLookAt(const Bbox& bbox); } // end namespace kmlengine #endif // KML_ENGINE_FEATURE_VIEW_H__