bd44cfcfd8
value to float, and converted the internal code across to use value_type. This allows Matrix to be converted to use double's simply by change the definition of value_type. Added Matrix::glLoadlMatrix and Matrix::glMultMatrix() to help encapsulate the changes between float and double matrix usage. Updated code that uses Matrix so it doesn't assume float or double matrices.
471 lines
16 KiB
C++
471 lines
16 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library 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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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSG_MATRIX
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#define OSG_MATRIX 1
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#include <osg/Object>
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#include <osg/Vec3>
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#include <osg/Vec4>
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#include <string.h>
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#include <iostream>
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#include <algorithm>
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namespace osg {
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class Quat;
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class SG_EXPORT Matrix
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{
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public:
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typedef float value_type;
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inline Matrix() { makeIdentity(); }
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inline Matrix( const Matrix& other) { set(other.ptr()); }
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inline explicit Matrix( float const * const ptr ) { set(ptr); }
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inline explicit Matrix( double const * const ptr ) { set(ptr); }
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Matrix( value_type a00, value_type a01, value_type a02, value_type a03,
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value_type a10, value_type a11, value_type a12, value_type a13,
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value_type a20, value_type a21, value_type a22, value_type a23,
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value_type a30, value_type a31, value_type a32, value_type a33);
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~Matrix() {}
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int compare(const Matrix& m) const { return memcmp(_mat,m._mat,sizeof(_mat)); }
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bool operator < (const Matrix& m) const { return compare(m)<0; }
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bool operator == (const Matrix& m) const { return compare(m)==0; }
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bool operator != (const Matrix& m) const { return compare(m)!=0; }
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inline value_type& operator()(int row, int col) { return _mat[row][col]; }
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inline value_type operator()(int row, int col) const { return _mat[row][col]; }
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inline bool valid() const { return !isNaN(); }
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inline bool isNaN() const { return osg::isNaN(_mat[0][0]) || osg::isNaN(_mat[0][1]) || osg::isNaN(_mat[0][2]) || osg::isNaN(_mat[0][3]) ||
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osg::isNaN(_mat[1][0]) || osg::isNaN(_mat[1][1]) || osg::isNaN(_mat[1][2]) || osg::isNaN(_mat[1][3]) ||
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osg::isNaN(_mat[2][0]) || osg::isNaN(_mat[2][1]) || osg::isNaN(_mat[2][2]) || osg::isNaN(_mat[2][3]) ||
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osg::isNaN(_mat[3][0]) || osg::isNaN(_mat[3][1]) || osg::isNaN(_mat[3][2]) || osg::isNaN(_mat[3][3]); }
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inline Matrix& operator = (const Matrix& other)
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{
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if( &other == this ) return *this;
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set(other.ptr());
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return *this;
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}
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inline void set(const Matrix& other)
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{
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set(other.ptr());
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}
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inline void set(float const * const ptr)
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{
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std::copy(ptr,ptr+16,(value_type*)_mat);
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}
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inline void set(double const * const ptr)
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{
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std::copy(ptr,ptr+16,(value_type*)_mat);
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}
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void set( value_type a00, value_type a01, value_type a02, value_type a03,
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value_type a10, value_type a11, value_type a12, value_type a13,
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value_type a20, value_type a21, value_type a22, value_type a23,
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value_type a30, value_type a31, value_type a32, value_type a33);
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value_type * ptr() { return (value_type*)_mat; }
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const value_type * ptr() const { return (const value_type *)_mat; }
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void makeIdentity();
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void makeScale( const Vec3& );
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void makeScale( value_type, value_type, value_type );
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void makeTranslate( const Vec3& );
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void makeTranslate( value_type, value_type, value_type );
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void makeRotate( const Vec3& from, const Vec3& to );
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void makeRotate( float angle, const Vec3& axis );
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void makeRotate( float angle, float x, float y, float z );
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void makeRotate( const Quat& );
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void makeRotate( float angle1, const Vec3& axis1,
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float angle2, const Vec3& axis2,
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float angle3, const Vec3& axis3);
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/** Set to a orthographic projection. See glOrtho for further details.*/
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void makeOrtho(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Get the othorgraphic settings of the orthographic projection matrix.
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* Note, if matrix is not an orthographic matrix then invalid values will be returned.*/
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void getOrtho(double& left, double& right,
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double& bottom, double& top,
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double& zNear, double& zFar);
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/** Set to a 2D orthographic projection. See glOrtho2D for further details.*/
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inline void makeOrtho2D(double left, double right,
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double bottom, double top)
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{
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makeOrtho(left,right,bottom,top,-1.0,1.0);
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}
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/** Set to a perspective projection. See glFrustum for further details.*/
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void makeFrustum(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Get the frustum setting of a perspective projection matrix.
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* Note, if matrix is not an perspective matrix then invalid values will be returned.*/
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void getFrustum(double& left, double& right,
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double& bottom, double& top,
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double& zNear, double& zFar);
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/** Set to a symmetrical perspective projection, See gluPerspective for further details.
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* Aspect ratio is defined as width/height.*/
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void makePerspective(double fovy,double aspectRatio,
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double zNear, double zFar);
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/** Set to the position and orientation modelview matrix, using the same convention as gluLookAt. */
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void makeLookAt(const Vec3& eye,const Vec3& center,const Vec3& up);
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/** Get to the position and orientation of a modelview matrix, using the same convention as gluLookAt. */
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void getLookAt(Vec3& eye,Vec3& center,Vec3& up,float lookDistance=1.0f);
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bool invert( const Matrix& );
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//basic utility functions to create new matrices
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inline static Matrix identity( void );
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inline static Matrix scale( const Vec3& sv);
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inline static Matrix scale( value_type sx, value_type sy, value_type sz);
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inline static Matrix translate( const Vec3& dv);
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inline static Matrix translate( value_type x, value_type y, value_type z);
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inline static Matrix rotate( const Vec3& from, const Vec3& to);
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inline static Matrix rotate( float angle, float x, float y, float z);
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inline static Matrix rotate( float angle, const Vec3& axis);
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inline static Matrix rotate( float angle1, const Vec3& axis1,
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float angle2, const Vec3& axis2,
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float angle3, const Vec3& axis3);
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inline static Matrix rotate( const Quat& quat);
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inline static Matrix inverse( const Matrix& matrix);
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/** Create a orthographic projection. See glOrtho for further details.*/
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inline static Matrix ortho(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Create a 2D orthographic projection. See glOrtho for further details.*/
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inline static Matrix ortho2D(double left, double right,
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double bottom, double top);
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/** Create a perspective projection. See glFrustum for further details.*/
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inline static Matrix frustum(double left, double right,
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double bottom, double top,
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double zNear, double zFar);
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/** Create a symmetrical perspective projection, See gluPerspective for further details.
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* Aspect ratio is defined as width/height.*/
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inline static Matrix perspective(double fovy,double aspectRatio,
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double zNear, double zFar);
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/** Create the position and orientation as per a camera, using the same convention as gluLookAt. */
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inline static Matrix lookAt(const Vec3& eye,const Vec3& center,const Vec3& up);
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inline Vec3 preMult( const Vec3& v ) const;
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inline Vec3 postMult( const Vec3& v ) const;
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inline Vec3 operator* ( const Vec3& v ) const;
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inline Vec4 preMult( const Vec4& v ) const;
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inline Vec4 postMult( const Vec4& v ) const;
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inline Vec4 operator* ( const Vec4& v ) const;
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void setTrans( value_type tx, value_type ty, value_type tz );
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void setTrans( const Vec3& v );
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inline Vec3 getTrans() const { return Vec3(_mat[3][0],_mat[3][1],_mat[3][2]); }
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inline Vec3 getScale() const { return Vec3(_mat[0][0],_mat[1][1],_mat[2][2]); }
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/** apply apply an 3x3 transform of v*M[0..2,0..2] */
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inline static Vec3 transform3x3(const Vec3& v,const Matrix& m);
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/** apply apply an 3x3 transform of M[0..2,0..2]*v */
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inline static Vec3 transform3x3(const Matrix& m,const Vec3& v);
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// basic Matrix multiplication, our workhorse methods.
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void mult( const Matrix&, const Matrix& );
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void preMult( const Matrix& );
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void postMult( const Matrix& );
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inline void operator *= ( const Matrix& other )
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{ if( this == &other ) {
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Matrix temp(other);
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postMult( temp );
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}
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else postMult( other );
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}
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inline Matrix operator * ( const Matrix &m ) const
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{
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osg::Matrix r;
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r.mult(*this,m);
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return r;
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}
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/** call glLoadMatixf with this matrix.*/
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void glLoadMatrix() const;
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/** call glMultMatixf with this matrix.*/
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void glMultMatrix() const;
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protected:
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value_type _mat[4][4];
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};
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class RefMatrix : public Object, public Matrix
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{
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public:
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RefMatrix():Matrix() {}
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RefMatrix( const Matrix& other) : Matrix(other) {}
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RefMatrix( const RefMatrix& other) : Object(other), Matrix(other) {}
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explicit RefMatrix( float const * const def ):Matrix(def) {}
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RefMatrix( float a00, float a01, float a02, float a03,
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float a10, float a11, float a12, float a13,
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float a20, float a21, float a22, float a23,
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float a30, float a31, float a32, float a33):
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Matrix(a00, a01, a02, a03,
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a10, a11, a12, a13,
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a20, a21, a22, a23,
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a30, a31, a32, a33) {}
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virtual Object* cloneType() const { return new RefMatrix(); }
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virtual Object* clone(const CopyOp&) const { return new RefMatrix(*this); }
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const RefMatrix*>(obj)!=NULL; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "Matrix"; }
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protected:
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virtual ~RefMatrix() {}
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};
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//static utility methods
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inline Matrix Matrix::identity(void)
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{
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Matrix m;
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m.makeIdentity();
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return m;
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}
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inline Matrix Matrix::scale(value_type sx, value_type sy, value_type sz)
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{
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Matrix m;
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m.makeScale(sx,sy,sz);
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return m;
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}
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inline Matrix Matrix::scale(const Vec3& v )
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{
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return scale(v.x(), v.y(), v.z() );
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}
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inline Matrix Matrix::translate(value_type tx, value_type ty, value_type tz)
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{
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Matrix m;
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m.makeTranslate(tx,ty,tz);
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return m;
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}
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inline Matrix Matrix::translate(const Vec3& v )
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{
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return translate(v.x(), v.y(), v.z() );
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}
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inline Matrix Matrix::rotate( const Quat& q )
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{
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Matrix m;
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m.makeRotate( q );
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return m;
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}
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inline Matrix Matrix::rotate(float angle, float x, float y, float z )
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{
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Matrix m;
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m.makeRotate(angle,x,y,z);
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return m;
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}
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inline Matrix Matrix::rotate(float angle, const Vec3& axis )
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{
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Matrix m;
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m.makeRotate(angle,axis);
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return m;
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}
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inline Matrix Matrix::rotate( float angle1, const Vec3& axis1,
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float angle2, const Vec3& axis2,
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float angle3, const Vec3& axis3)
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{
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Matrix m;
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m.makeRotate(angle1,axis1,angle2,axis2,angle3,axis3);
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return m;
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}
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inline Matrix Matrix::rotate(const Vec3& from, const Vec3& to )
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{
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Matrix m;
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m.makeRotate(from,to);
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return m;
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}
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inline Matrix Matrix::inverse( const Matrix& matrix)
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{
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Matrix m;
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m.invert(matrix);
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return m;
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}
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inline Matrix Matrix::ortho(double left, double right,
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double bottom, double top,
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double zNear, double zFar)
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{
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Matrix m;
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m.makeOrtho(left,right,bottom,top,zNear,zFar);
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return m;
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}
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inline Matrix Matrix::ortho2D(double left, double right,
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double bottom, double top)
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{
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Matrix m;
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m.makeOrtho2D(left,right,bottom,top);
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return m;
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}
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inline Matrix Matrix::frustum(double left, double right,
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double bottom, double top,
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double zNear, double zFar)
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{
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Matrix m;
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m.makeFrustum(left,right,bottom,top,zNear,zFar);
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return m;
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}
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inline Matrix Matrix::perspective(double fovy,double aspectRatio,
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double zNear, double zFar)
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{
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Matrix m;
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m.makePerspective(fovy,aspectRatio,zNear,zFar);
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return m;
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}
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inline Matrix Matrix::lookAt(const Vec3& eye,const Vec3& center,const Vec3& up)
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{
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Matrix m;
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m.makeLookAt(eye,center,up);
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return m;
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}
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inline Vec3 Matrix::postMult( const Vec3& v ) const
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{
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float d = 1.0f/(_mat[3][0]*v.x()+_mat[3][1]*v.y()+_mat[3][2]*v.z()+_mat[3][3]) ;
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return Vec3( (_mat[0][0]*v.x() + _mat[0][1]*v.y() + _mat[0][2]*v.z() + _mat[0][3])*d,
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(_mat[1][0]*v.x() + _mat[1][1]*v.y() + _mat[1][2]*v.z() + _mat[1][3])*d,
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(_mat[2][0]*v.x() + _mat[2][1]*v.y() + _mat[2][2]*v.z() + _mat[2][3])*d) ;
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}
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inline Vec3 Matrix::preMult( const Vec3& v ) const
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{
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float d = 1.0f/(_mat[0][3]*v.x()+_mat[1][3]*v.y()+_mat[2][3]*v.z()+_mat[3][3]) ;
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return Vec3( (_mat[0][0]*v.x() + _mat[1][0]*v.y() + _mat[2][0]*v.z() + _mat[3][0])*d,
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(_mat[0][1]*v.x() + _mat[1][1]*v.y() + _mat[2][1]*v.z() + _mat[3][1])*d,
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(_mat[0][2]*v.x() + _mat[1][2]*v.y() + _mat[2][2]*v.z() + _mat[3][2])*d);
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}
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inline Vec4 Matrix::postMult( const Vec4& v ) const
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{
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return Vec4( (_mat[0][0]*v.x() + _mat[0][1]*v.y() + _mat[0][2]*v.z() + _mat[0][3]*v.w()),
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(_mat[1][0]*v.x() + _mat[1][1]*v.y() + _mat[1][2]*v.z() + _mat[1][3]*v.w()),
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(_mat[2][0]*v.x() + _mat[2][1]*v.y() + _mat[2][2]*v.z() + _mat[2][3]*v.w()),
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(_mat[3][0]*v.x() + _mat[3][1]*v.y() + _mat[3][2]*v.z() + _mat[3][3]*v.w())) ;
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}
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inline Vec4 Matrix::preMult( const Vec4& v ) const
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{
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return Vec4( (_mat[0][0]*v.x() + _mat[1][0]*v.y() + _mat[2][0]*v.z() + _mat[3][0]*v.w()),
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(_mat[0][1]*v.x() + _mat[1][1]*v.y() + _mat[2][1]*v.z() + _mat[3][1]*v.w()),
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(_mat[0][2]*v.x() + _mat[1][2]*v.y() + _mat[2][2]*v.z() + _mat[3][2]*v.w()),
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(_mat[0][3]*v.x() + _mat[1][3]*v.y() + _mat[2][3]*v.z() + _mat[3][3]*v.w()));
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}
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inline Vec3 Matrix::transform3x3(const Vec3& v,const Matrix& m)
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{
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return Vec3( (m._mat[0][0]*v.x() + m._mat[1][0]*v.y() + m._mat[2][0]*v.z()),
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(m._mat[0][1]*v.x() + m._mat[1][1]*v.y() + m._mat[2][1]*v.z()),
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(m._mat[0][2]*v.x() + m._mat[1][2]*v.y() + m._mat[2][2]*v.z()));
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}
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inline Vec3 Matrix::transform3x3(const Matrix& m,const Vec3& v)
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{
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return Vec3( (m._mat[0][0]*v.x() + m._mat[0][1]*v.y() + m._mat[0][2]*v.z()),
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(m._mat[1][0]*v.x() + m._mat[1][1]*v.y() + m._mat[1][2]*v.z()),
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(m._mat[2][0]*v.x() + m._mat[2][1]*v.y() + m._mat[2][2]*v.z()) ) ;
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}
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inline Vec3 operator* (const Vec3& v, const Matrix& m )
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{
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return m.preMult(v);
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}
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inline Vec4 operator* (const Vec4& v, const Matrix& m )
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{
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return m.preMult(v);
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}
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inline Vec3 Matrix::operator* (const Vec3& v) const
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{
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return postMult(v);
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}
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inline Vec4 Matrix::operator* (const Vec4& v) const
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{
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return postMult(v);
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}
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inline std::ostream& operator<< (std::ostream& os, const Matrix& m )
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{
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os << "{"<<std::endl;
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for(int row=0; row<4; ++row) {
|
|
os << "\t";
|
|
for(int col=0; col<4; ++col)
|
|
os << m(row,col) << " ";
|
|
os << std::endl;
|
|
}
|
|
os << "}" << std::endl;
|
|
return os;
|
|
}
|
|
|
|
|
|
} //namespace osg
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|
|
|
|
|
#endif
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