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47 lines
1.5 KiB
47 lines
1.5 KiB
1 year ago
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#ifndef IGL_BOX_FACES_H
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#define IGL_BOX_FACES_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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#include <Eigen/Geometry>
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namespace igl
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{
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/// Compute the quad faces of an axis-aligned bounding box) shrunk by a given
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/// factor.
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///
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/// @param[in] box Axis-aligned bounding box
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/// @param[in] shrink Factor by which to shrink the box
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/// @param[out] P #P by 3 list of vertex positions
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/// @param[out] Q #Q by 4 list of triangle indices into rows of P
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template <typename DerivedV, typename DerivedQ>
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IGL_INLINE void box_faces(
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const Eigen::AlignedBox<typename DerivedV::Scalar,3> & box,
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const typename DerivedV::Scalar shrink,
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Eigen::PlainObjectBase<DerivedV> & P,
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Eigen::PlainObjectBase<DerivedQ> & Q);
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// Forward declaration
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template <typename DerivedV, int DIM> class AABB;
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/// Compute the quad faces of a tree of axis-aligned bounding boxes.
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///
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/// @param[in] tree Tree of axis-aligned bounding boxes
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/// @param[out] P #P by 3 list of vertex positions
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/// @param[out] Q #Q by 4 list of triangle indices into rows of P
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/// @param[out] D #Q list of tree depths (0==root)
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template <
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typename DerivedV,
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typename DerivedP,
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typename DerivedQ,
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typename DerivedD >
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IGL_INLINE void box_faces(
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const igl::AABB<DerivedV,3> & tree,
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Eigen::PlainObjectBase<DerivedP> & P,
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Eigen::PlainObjectBase<DerivedQ> & Q,
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Eigen::PlainObjectBase<DerivedD> & D);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "box_faces.cpp"
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#endif
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#endif
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