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49 lines
1.7 KiB
49 lines
1.7 KiB
1 year ago
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#ifndef BEZIER_H
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#define BEZIER_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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#include <vector>
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namespace igl
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{
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/// Evaluate a polynomial Bezier Curve at single parameter value.
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///
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/// @param[in] V #V by dim list of Bezier control points
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/// @param[in] t evaluation parameter within [0,1]
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/// @param[out] P 1 by dim output point
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template <typename DerivedV, typename DerivedP>
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IGL_INLINE void bezier(
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const Eigen::MatrixBase<DerivedV> & V,
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const typename DerivedV::Scalar t,
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Eigen::PlainObjectBase<DerivedP> & P);
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/// Evaluate a polynomial Bezier Curve at many parameter values.
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///
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/// @param[in] V #V by dim list of Bezier control points
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/// @param[in] T #T evaluation parameters within [0,1]
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/// @param[out] P #T by dim output points
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template <typename DerivedV, typename DerivedT, typename DerivedP>
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IGL_INLINE void bezier(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedT> & T,
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Eigen::PlainObjectBase<DerivedP> & P);
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/// Evaluate a polynomial Bezier spline with a fixed parameter set for each
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/// sub-curve.
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///
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/// @tparam VMat type of matrix of each list of control points
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/// @tparam DerivedT Derived type of evaluation parameters
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/// @tparam DerivedP Derived type of output points
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/// @param[in] spline #curves list of lists of Bezier control points
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/// @param[in] T #T evaluation parameters within [0,1] to use for each spline
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/// @param[out] P #curves*#T by dim output points
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template <typename VMat, typename DerivedT, typename DerivedP>
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IGL_INLINE void bezier(
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const std::vector<VMat> & spline,
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const Eigen::MatrixBase<DerivedT> & T,
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Eigen::PlainObjectBase<DerivedP> & P);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "bezier.cpp"
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#endif
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#endif
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