138 lines
2.3 KiB
C++
138 lines
2.3 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file moto/include/MT_Plane3.h
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* \ingroup moto
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*/
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#ifndef MT_PLANE3
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#define MT_PLANE3
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#include "MT_Tuple4.h"
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#include "MT_Point3.h"
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/**
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* A simple 3d plane class.
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*
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* This class represents a plane in 3d. The internal parameterization used
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* is n.x + d =0 where n is a unit vector and d is a scalar.
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*
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* It inherits data from MT_Tuple4 please see this class for low level
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* access to the internal representation.
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*
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*/
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class MT_Plane3 : public MT_Tuple4
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{
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public :
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/**
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* Constructor from 3 points
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*/
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MT_Plane3(
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const MT_Vector3 &a,
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const MT_Vector3 &b,
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const MT_Vector3 &c
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);
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/**
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* Construction from vector and a point.
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*/
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MT_Plane3(
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const MT_Vector3 &n,
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const MT_Vector3 &p
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);
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/**
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* Default constructor
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*/
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MT_Plane3(
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);
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/**
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* Default constructor
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*/
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MT_Plane3(
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const MT_Plane3 & p
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):
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MT_Tuple4(p)
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{
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}
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/**
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* Return plane normal
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*/
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MT_Vector3
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Normal(
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) const;
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/**
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* Return plane scalar i.e the d from n.x + d = 0
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*/
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MT_Scalar
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Scalar(
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) const ;
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/**
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* Invert the plane - just swaps direction of normal.
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*/
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void
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Invert(
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);
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/**
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* Assignment operator
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*/
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MT_Plane3 &
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operator = (
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const MT_Plane3 & rhs
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);
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/**
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* Return the signed perpendicular distance from a point to the plane
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*/
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MT_Scalar
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signedDistance(
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const MT_Vector3 &
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) const;
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};
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#ifdef GEN_INLINED
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#include "MT_Plane3.inl"
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#endif
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#endif
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