65 lines
1.2 KiB
C++
65 lines
1.2 KiB
C++
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#pragma once
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#include "geometry.hpp"
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#include "face.hpp"
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namespace hpr::csg
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{
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class Surface : public Geometry
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{
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protected:
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Handle(Geom_Surface) p_surface;
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public:
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Surface() = default;
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~Surface() override = default;
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explicit
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Surface(const Face& face) :
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Geometry {},
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p_surface {BRep_Tool::Surface(face.tcast())}
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{}
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[[nodiscard]]
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Handle(Geom_Surface) tcast() const
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{
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return p_surface;
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}
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[[nodiscard]]
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vec3 value(double u, double v) const
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{
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gp_Pnt p {p_surface->Value(u, v)};
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return vec3 {p.X(), p.Y(), p.Z()};
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}
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[[nodiscard]]
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vec3 normal(double u, double v) const
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{
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GeomLProp_SLProps props {p_surface, u, v, 1, 1e-8};
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gp_Dir dir {props.Normal()};
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return vec3 {dir.X(), dir.Y(), dir.Z()};
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}
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vec3 normal()
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{
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gp_Vec du, dv;
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gp_Pnt p;
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p_surface->D1(0, 0, p, du, dv);
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gp_Vec dir {du ^ dv};
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return vec3 {dir.X(), dir.Y(), dir.Z()};
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}
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};
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}
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