ViewDesignEngine
31 lines
893 B
C++
31 lines
893 B
C++
#pragma once
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#include "vde/core/point.h"
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namespace vde::core {
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template <typename T>
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class Plane {
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public:
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Plane() = default;
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Plane(const Point3D& point, const Vector3D& normal)
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: normal_(normal.normalized()), d_(-normal_.dot(point)) {}
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Plane(const Point3D& a, const Point3D& b, const Point3D& c)
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: Plane(a, (b - a).cross(c - a)) {}
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[[nodiscard]] const Vector3D& normal() const { return normal_; }
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[[nodiscard]] T d() const { return d_; }
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[[nodiscard]] T signed_distance(const Point3D& p) const { return normal_.dot(p) + d_; }
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[[nodiscard]] T distance(const Point3D& p) const { return std::abs(signed_distance(p)); }
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[[nodiscard]] Point3D project(const Point3D& p) const {
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return p - normal_ * signed_distance(p);
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}
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private:
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Vector3D normal_{0,0,1};
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T d_{0};
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};
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using Plane3D = Plane<double>;
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} // namespace vde::core
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