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//
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// Implicit.h
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// PointReconstruction
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//
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// Created by J. Andreas Bærentzen on 16/03/13.
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// Copyright (c) 2013 J. Andreas Bærentzen. All rights reserved.
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//
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#ifndef __PointReconstruction__Implicit__
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#define __PointReconstruction__Implicit__
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#include "../CGLA/Vec3d.h"
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#include "RGrid.h"
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#include "XForm.h"
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namespace Geometry
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{
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class Implicit
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{
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public:
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virtual ~Implicit() {}
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virtual double eval(const CGLA::Vec3d& p) const = 0;
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virtual CGLA::Vec3d grad(const CGLA::Vec3d& p) const = 0;
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void push_to_surface(CGLA::Vec3d& p, double tau=0, double max_dist=FLT_MAX) const;
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};
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XForm grid_sample(const Implicit& imp, const CGLA::Vec3d& llf, const CGLA::Vec3d& urt,
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Geometry::RGrid<float>& grid);
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class VolumetricImplicit: public Implicit {
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const XForm xform;
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const Geometry::RGrid<float>& grid;
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public:
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VolumetricImplicit(const XForm& _xform, const Geometry::RGrid<float>& _grid):
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xform(_xform), grid(_grid) {}
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virtual double eval(const CGLA::Vec3d& p) const;
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virtual CGLA::Vec3d grad(const CGLA::Vec3d& p) const;
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};
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}
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#endif /* defined(__PointReconstruction__Implicit__) */
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