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/********************************************************************************
* *
* H o m o g e n e o u s M a t r i x O p e r a t i o n s *
* *
*********************************************************************************
* Copyright (C) 1994,2002 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
*********************************************************************************
* $Id: FXHMat.h,v 1.9 2002/01/18 22:42:53 jeroen Exp $ *
********************************************************************************/
#ifndef FXHMAT_H
#define FXHMAT_H
/// Homogeneous matrix (single-precision version)
class FXAPI FXHMat {
protected:
FXHVec m[4];
public:
/// Constructors
FXHMat(){}
FXHMat(FXfloat w);
FXHMat(FXfloat a00,FXfloat a01,FXfloat a02,FXfloat a03,
FXfloat a10,FXfloat a11,FXfloat a12,FXfloat a13,
FXfloat a20,FXfloat a21,FXfloat a22,FXfloat a23,
FXfloat a30,FXfloat a31,FXfloat a32,FXfloat a33);
FXHMat(const FXHVec& a,const FXHVec& b,const FXHVec& c,const FXHVec& d);
FXHMat(const FXHMat& other);
/// Assignment operators
FXHMat& operator=(const FXHMat& other);
FXHMat& operator=(FXfloat w);
FXHMat& operator+=(const FXHMat& w);
FXHMat& operator-=(const FXHMat& w);
FXHMat& operator*=(FXfloat w);
FXHMat& operator*=(const FXHMat& w);
FXHMat& operator/=(FXfloat w);
/// Indexing
FXHVec& operator[](FXint i){return m[i];}
const FXHVec& operator[](FXint i) const {return m[i];}
/// Conversion
operator FXfloat*(){return m[0];}
operator const FXfloat*() const {return m[0];}
/// Other operators
friend FXAPI FXHMat operator+(const FXHMat& a,const FXHMat& b);
friend FXAPI FXHMat operator-(const FXHMat& a,const FXHMat& b);
friend FXAPI FXHMat operator-(const FXHMat& a);
friend FXAPI FXHMat operator*(const FXHMat& a,const FXHMat& b);
friend FXAPI FXHMat operator*(FXfloat x,const FXHMat& a);
friend FXAPI FXHMat operator*(const FXHMat& a,FXfloat x);
friend FXAPI FXHMat operator/(const FXHMat& a,FXfloat x);
friend FXAPI FXHMat operator/(FXfloat x,const FXHMat& a);
/// Multiply matrix and vector
friend FXAPI FXHVec operator*(const FXHVec& v,const FXHMat& m);
friend FXAPI FXHVec operator*(const FXHMat& a,const FXHVec& v);
/// Mutiply matrix and vector, for non-projective matrix
friend FXAPI FXVec operator*(const FXVec& v,const FXHMat& m);
friend FXAPI FXVec operator*(const FXHMat& a,const FXVec& v);
/// Set identity matrix
FXHMat& eye();
/// Orthographic projection
FXHMat& ortho(FXfloat left,FXfloat right,FXfloat bottom,FXfloat top,FXfloat hither,FXfloat yon);
/// Perspective projection
FXHMat& frustum(FXfloat left,FXfloat right,FXfloat bottom,FXfloat top,FXfloat hither,FXfloat yon);
/// Multiply by left-hand matrix
FXHMat& left();
/// Multiply by rotation about unit-quaternion
FXHMat& rot(const FXQuat& q);
/// Multiply by rotation c,s about axis
FXHMat& rot(const FXVec& v,FXfloat c,FXfloat s);
/// Multiply by rotation of phi about axis
FXHMat& rot(const FXVec& v,FXfloat phi);
/// Multiply by x-rotation
FXHMat& xrot(FXfloat c,FXfloat s);
FXHMat& xrot(FXfloat phi);
/// Multiply by y-rotation
FXHMat& yrot(FXfloat c,FXfloat s);
FXHMat& yrot(FXfloat phi);
/// Multiply by z-rotation
FXHMat& zrot(FXfloat c,FXfloat s);
FXHMat& zrot(FXfloat phi);
/// Look at
FXHMat& look(const FXVec& eye,const FXVec& cntr,const FXVec& vup);
/// Multiply by translation
FXHMat& trans(FXfloat tx,FXfloat ty,FXfloat tz);
FXHMat& trans(const FXVec& v);
/// Multiply by scaling
FXHMat& scale(FXfloat sx,FXfloat sy,FXfloat sz);
FXHMat& scale(FXfloat s);
FXHMat& scale(const FXVec& v);
/// Determinant
friend FXAPI FXfloat det(const FXHMat& m);
/// Transpose
friend FXAPI FXHMat transpose(const FXHMat& m);
/// Invert
friend FXAPI FXHMat invert(const FXHMat& m);
/// Save to a stream
friend FXAPI FXStream& operator<<(FXStream& store,const FXHMat& m);
/// Load from a stream
friend FXAPI FXStream& operator>>(FXStream& store,FXHMat& m);
};
#endif
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