70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
#pragma once
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#include <J3ML/Geometry.h>
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#include <J3ML/LinearAlgebra/Matrix3x3.h>
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#include <J3ML/LinearAlgebra/Matrix4x4.h>
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#include <J3ML/Geometry/LineSegment.h>
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#include <J3ML/Geometry/TriangleMesh.h>
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namespace J3ML::Geometry
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{
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using J3ML::LinearAlgebra::Matrix3x3;
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using J3ML::LinearAlgebra::Matrix4x4;
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// A mathematical representation of a 3-dimensional sphere
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class Sphere
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{
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public:
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Vector3 Position;
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float Radius;
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Sphere() {}
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Sphere(const Vector3& pos, float radius) : Position(pos), Radius(radius) {}
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void Translate(const Vector3& offset)
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{
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Position = Position + offset;
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}
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void Transform(const Matrix3x3& transform)
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{
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Position = transform * Position;
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}
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void Transform(const Matrix4x4& transform)
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{
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Position = transform * Position;
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}
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inline float Cube(float inp) const
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{
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return inp*inp*inp;
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}
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float Volume() const
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{
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return 4.f * M_PI * Cube(Radius) / 3.f;
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}
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float SurfaceArea() const
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{
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return 4.f * M_PI * Cube(Radius) / 3.f;
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}
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bool IsFinite() const
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{
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return Position.IsFinite() && std::isfinite(Radius);
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}
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bool IsDegenerate()
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{
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return !(Radius > 0.f) || !Position.IsFinite();
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}
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bool Contains(const Vector3& point) const
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{
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return Position.DistanceSquared(point) <= Radius*Radius;
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}
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bool Contains(const Vector3& point, float epsilon) const
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{
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return Position.DistanceSquared(point) <= Radius*Radius + epsilon;
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}
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bool Contains(const LineSegment& lineseg) const
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{
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}
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TriangleMesh GenerateUVSphere() const {}
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TriangleMesh GenerateIcososphere() const {}
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};
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} |