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/***********************************************************************
* FXRuby -- the Ruby language bindings for the FOX GUI toolkit.
* Copyright (c) 2001-2009 by Lyle Johnson. 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
*
* For further information please contact the author by e-mail
* at "lyle@lylejohnson.name".
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***********************************************************************/
/// Single-precision 3x3 matrix
class FXMat3f {
protected:
FXVec3f m[3];
public:
/// Default constructor
FXMat3f();
/// Copy constructor
FXMat3f(const FXMat3f& other);
/// Construct from scalar number
FXMat3f(FXfloat w);
/// Construct from components
FXMat3f(FXfloat a00,FXfloat a01,FXfloat a02,
FXfloat a10,FXfloat a11,FXfloat a12,
FXfloat a20,FXfloat a21,FXfloat a22);
/// Construct matrix from three vectors
FXMat3f(const FXVec3f& a,const FXVec3f& b,const FXVec3f& c);
/// Construct rotation matrix from quaternion
FXMat3f(const FXQuatf& quat);
%extend {
/// Indexing
const FXVec3f& __getitem__(FXint i) const {
if(i<0 || i>2) rb_raise(rb_eIndexError,"index %d out of bounds",i);
return (*self)[i];
}
FXVec3f& __setitem__(FXint i,const FXVec3d& other){
if(i<0 || i>2) rb_raise(rb_eIndexError,"index %d out of bounds",i);
(*self)[i]=other;
return (*self)[i];
}
/// Other operators
FXMat3f operator+(const FXMat3f& other) const { return (*self)+other; }
FXMat3f operator-(const FXMat3f& other) const { return (*self)-other; }
FXMat3f operator-() const { return -(*self); }
FXMat3f operator*(const FXMat3f& other) const { return (*self)*other; }
FXMat3f operator*(FXfloat x) const { return (*self)*x; }
FXMat3f operator/(FXfloat x) const {
if(x==0.0f) rb_raise(rb_eZeroDivError,"divided by 0");
return (*self)/x;
}
/// Multiply matrix and vector
FXVec3f operator*(const FXVec3f& other) const { return (*self)*other; }
/// Mutiply matrix and vector, for non-projective matrix
FXVec2f operator*(const FXVec2f& other) const { return (*self)*other; }
}
/// Set identity matrix
FXMat3f& eye();
/// Multiply by rotation of phi
FXMat3f& rot(FXfloat c,FXfloat s);
FXMat3f& rot(FXfloat phi);
/// Multiply by translation
FXMat3f& trans(FXfloat tx,FXfloat ty);
/// Multiply by scaling
FXMat3f& scale(FXfloat sx,FXfloat sy);
FXMat3f& scale(FXfloat s);
/// Determinant
FXfloat det() const;
/// Transpose
FXMat3f transpose() const;
/// Invert
FXMat3f invert() const;
};