assimp/code/Geometry/GeometryUtils.h

/*
Open Asset Import Library (assimp)
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  following disclaimer.

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*/

#include <assimp/types.h>
#include <assimp/mesh.h>

namespace Assimp {

// ---------------------------------------------------------------------------
/// @brief This helper class supports some basic geometry algorithms.
// ---------------------------------------------------------------------------
class GeometryUtils {
public:
    static ai_real heron( ai_real a, ai_real b, ai_real c );
    
    /// @brief Will compute the distance between 2 3D-vectors
    /// @param vA  Vector a.
    /// @param vB  Vector b.
    /// @return The distance.
    static ai_real distance3D( const aiVector3D &vA, aiVector3D &vB );

    /// @brief Will calculate the area of a triangle described by a aiFace.
    /// @param face   The face
    /// @param mesh   The mesh containing the face
    /// @return The area.
    static ai_real calculateAreaOfTriangle( const aiFace& face, aiMesh* mesh );
};

} // namespace Assimp