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@@ -1,12 +1,66 @@
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+/*
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+Open Asset Import Library (assimp)
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+----------------------------------------------------------------------
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+
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+Copyright (c) 2006-2022, assimp team
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+
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+All rights reserved.
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+
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+Redistribution and use of this software in source and binary forms,
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+with or without modification, are permitted provided that the
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+following conditions are met:
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+
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+* Redistributions of source code must retain the above
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+ copyright notice, this list of conditions and the
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+ following disclaimer.
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+
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+* Redistributions in binary form must reproduce the above
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+ copyright notice, this list of conditions and the
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+ following disclaimer in the documentation and/or other
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+ materials provided with the distribution.
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+
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+* Neither the name of the assimp team, nor the names of its
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+ contributors may be used to endorse or promote products
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+ derived from this software without specific prior
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+ written permission of the assimp team.
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+
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+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+
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+----------------------------------------------------------------------
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+*/
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+
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#include <assimp/types.h>
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#include <assimp/mesh.h>
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namespace Assimp {
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+// ---------------------------------------------------------------------------
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+/// @brief This helper class supports some basic geometry algorithms.
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+// ---------------------------------------------------------------------------
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class GeometryUtils {
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public:
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static ai_real heron( ai_real a, ai_real b, ai_real c );
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+
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+ /// @brief Will compute the distance between 2 3D-vectors
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+ /// @param vA Vector a.
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+ /// @param vB Vector b.
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+ /// @return The distance.
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static ai_real distance3D( const aiVector3D &vA, aiVector3D &vB );
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+
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+ /// @brief Will calculate the area of a triangle described by a aiFace.
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+ /// @param face The face
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+ /// @param mesh The mesh containing the face
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+ /// @return The area.
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static ai_real calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh );
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};
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Kim Kulling