/* ========================================================================= * * * * OpenMesh * * Copyright (c) 2001-2015, RWTH-Aachen University * * Department of Computer Graphics and Multimedia * * All rights reserved. * * www.openmesh.org * * * *---------------------------------------------------------------------------* * This file is part of OpenMesh. * *---------------------------------------------------------------------------* * * * 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 the copyright holder 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 COPYRIGHT HOLDERS AND CONTRIBUTORS * * "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 COPYRIGHT HOLDER * * OR CONTRIBUTORS 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. * * * * ========================================================================= */ /*===========================================================================*\ * * * $Revision$ * * $Date$ * * * \*===========================================================================*/ //============================================================================= // // CLASS TriMeshT - IMPLEMENTATION // //============================================================================= #define OPENMESH_TRIMESH_C //== INCLUDES ================================================================= #include #include #include //== NAMESPACES ============================================================== namespace OpenMesh { //== IMPLEMENTATION ========================================================== template typename TriMeshT::Normal TriMeshT:: calc_face_normal(FaceHandle _fh) const { assert(this->halfedge_handle(_fh).is_valid()); ConstFaceVertexIter fv_it(this->cfv_iter(_fh)); const Point& p0(this->point(*fv_it)); ++fv_it; const Point& p1(this->point(*fv_it)); ++fv_it; const Point& p2(this->point(*fv_it)); return PolyMesh::calc_face_normal(p0, p1, p2); } //============================================================================= } // namespace OpenMesh //=============================================================================