25 lines
786 B
C++
25 lines
786 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 BezierSurface {
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public:
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BezierSurface(std::vector<std::vector<Point3D>> control_grid);
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[[nodiscard]] Point3D evaluate(double u, double v) const;
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[[nodiscard]] Vector3D derivative_u(double u, double v) const;
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[[nodiscard]] Vector3D derivative_v(double u, double v) const;
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[[nodiscard]] Vector3D normal(double u, double v) const;
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[[nodiscard]] int degree_u() const { return static_cast<int>(cp_.size()) - 1; }
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[[nodiscard]] int degree_v() const { return static_cast<int>(cp_[0].size()) - 1; }
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private:
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std::vector<std::vector<Point3D>> cp_;
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[[nodiscard]] Point3D de_casteljau(double t, const std::vector<Point3D>& pts) const;
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};
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} // namespace vde::curves
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