28 lines
836 B
C++
28 lines
836 B
C++
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#pragma once
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#include "vde/core/point.h"
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#include <vector>
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namespace vde::curves {
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class BezierCurve {
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public:
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explicit BezierCurve(std::vector<Point3D> control_points);
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[[nodiscard]] Point3D evaluate(double t) const;
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[[nodiscard]] Vector3D derivative(double t, int order = 1) const;
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[[nodiscard]] int degree() const { return static_cast<int>(cp_.size()) - 1; }
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[[nodiscard]] std::pair<double, double> domain() const { return {0.0, 1.0}; }
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[[nodiscard]] const std::vector<Point3D>& control_points() const { return cp_; }
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/// Split at parameter t into two curves
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[[nodiscard]] std::pair<BezierCurve, BezierCurve> split(double t) const;
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/// Degree elevation
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[[nodiscard]] BezierCurve degree_elevate(int times = 1) const;
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private:
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std::vector<Point3D> cp_;
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};
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} // namespace vde::curves
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