Ga::GaMat4x4 Class Reference

#include "GaTypes.h"

Public Member Functions
GaExpInl	GaMat4x4 ()
GaExpInl	GaMat4x4 (const GaFloat *v)
GaExpInl	GaMat4x4 (GaFloat m00, GaFloat m01, GaFloat m02, GaFloat m03, GaFloat m10, GaFloat m11, GaFloat m12, GaFloat m13, GaFloat m20, GaFloat m21, GaFloat m22, GaFloat m23, GaFloat m30, GaFloat m31, GaFloat m32, GaFloat m33)
GaExpInl	GaMat4x4 (const GaVec3 &p, const GaQuat &q)
GaExpInl GaMat4x4	operator* (const GaMat4x4 &oth) const
GaExpInl GaFloat *	operator[] (GaUint i)
GaExpInl const GaFloat *const	operator[] (GaUint i) const
GaExpInl GaVec3	operator* (const GaVec3 &v) const
GaExpInl void	toFloatMatrix (float *o)
GaExpInl GaMat4x4	operator* (GaFloat s)
GaMat4x4	inverse () const
GaMat4x4	adjoint () const
GaFloat	determinant () const

Public Attributes
GaFloat	m [4][4]

Detailed Description

Definition at line 332 of file GaTypes.h.

Constructor & Destructor Documentation

GaExpInl Ga::GaMat4x4::GaMat4x4 ( )

inline

Definition at line 335 of file GaTypes.h.

Referenced by adjoint().

{}

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GaExpInl Ga::GaMat4x4::GaMat4x4 ( const GaFloat *  v )

inline

Definition at line 337 of file GaTypes.h.

        {
            m[0][0] = v[ 0]; m[0][1] = v[ 1]; m[0][2] = v[ 2]; m[0][3] = v[ 3];
            m[1][0] = v[ 4]; m[1][1] = v[ 5]; m[1][2] = v[ 6]; m[1][3] = v[ 7];
            m[2][0] = v[ 8]; m[2][1] = v[ 9]; m[2][2] = v[10]; m[2][3] = v[11];
            m[3][0] = v[12]; m[3][1] = v[13]; m[3][2] = v[14]; m[3][3] = v[15];
        }

GaExpInl Ga::GaMat4x4::GaMat4x4 ( GaFloat  m00, GaFloat  m01, GaFloat  m02, GaFloat  m03, GaFloat  m10, GaFloat  m11, GaFloat  m12, GaFloat  m13, GaFloat  m20, GaFloat  m21, GaFloat  m22, GaFloat  m23, GaFloat  m30, GaFloat  m31, GaFloat  m32, GaFloat  m33  )

inline

Definition at line 345 of file GaTypes.h.

        {
            m[0][0] = m00; m[0][1] = m01; m[0][2] = m02; m[0][3] = m03;
            m[1][0] = m10; m[1][1] = m11; m[1][2] = m12; m[1][3] = m13;
            m[2][0] = m20; m[2][1] = m21; m[2][2] = m22; m[2][3] = m23;
            m[3][0] = m30; m[3][1] = m31; m[3][2] = m32; m[3][3] = m33;
        }

GaExpInl Ga::GaMat4x4::GaMat4x4 ( const GaVec3 &  p, const GaQuat &  q  )

inline

Definition at line 356 of file GaTypes.h.

References Ga::GaVec3::x, Ga::GaVec3::y, and Ga::GaVec3::z.

        {
            GaMat3x3 rot(q);

            m[0][0] = rot[0][0]; m[0][1] = rot[0][1]; m[0][2] = rot[0][2]; m[0][3] = p.x;
            m[1][0] = rot[1][0]; m[1][1] = rot[1][1]; m[1][2] = rot[1][2]; m[1][3] = p.y;
            m[2][0] = rot[2][0]; m[2][1] = rot[2][1]; m[2][2] = rot[2][2]; m[2][3] = p.z;
            m[3][0] = 0.0;       m[3][1] = 0.0;       m[3][2] = 0.0;       m[3][3] = 1.0;
        }

Member Function Documentation

GaMat4x4 GaMat4x4::adjoint

(

)

const

Definition at line 259 of file GaTypes.cpp.

References GaMat4x4(), and matrix_minor().

Referenced by inverse().

{
    return GaMat4x4
    (
        matrix_minor(*this, 1, 2, 3, 1, 2, 3),
        -matrix_minor(*this, 0, 2, 3, 1, 2, 3),
        matrix_minor(*this, 0, 1, 3, 1, 2, 3),
        -matrix_minor(*this, 0, 1, 2, 1, 2, 3),

        -matrix_minor(*this, 1, 2, 3, 0, 2, 3),
        matrix_minor(*this, 0, 2, 3, 0, 2, 3),
        -matrix_minor(*this, 0, 1, 3, 0, 2, 3),
        matrix_minor(*this, 0, 1, 2, 0, 2, 3),

        matrix_minor(*this, 1, 2, 3, 0, 1, 3),
        -matrix_minor(*this, 0, 2, 3, 0, 1, 3),
        matrix_minor(*this, 0, 1, 3, 0, 1, 3),
        -matrix_minor(*this, 0, 1, 2, 0, 1, 3),

        -matrix_minor(*this, 1, 2, 3, 0, 1, 2),
        matrix_minor(*this, 0, 2, 3, 0, 1, 2),
        -matrix_minor(*this, 0, 1, 3, 0, 1, 2),
        matrix_minor(*this, 0, 1, 2, 0, 1, 2)
    );
}

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GaFloat GaMat4x4::determinant

(

)

const

Definition at line 285 of file GaTypes.cpp.

References m, and matrix_minor().

Referenced by inverse().

{
    return m[0][0] * matrix_minor(*this, 1, 2, 3, 1, 2, 3) -
           m[0][1] * matrix_minor(*this, 1, 2, 3, 0, 2, 3) +
           m[0][2] * matrix_minor(*this, 1, 2, 3, 0, 1, 3) -
           m[0][3] * matrix_minor(*this, 1, 2, 3, 0, 1, 2);
}

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GaMat4x4 GaMat4x4::inverse

(

)

const

Definition at line 293 of file GaTypes.cpp.

References adjoint(), and determinant().

{
    return adjoint() * (1.0f / determinant());
}

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GaExpInl GaMat4x4 Ga::GaMat4x4::operator* ( const GaMat4x4 &  oth ) const

inline

Definition at line 366 of file GaTypes.h.

References m.

        {
            GaMat4x4 o;

            o.m[0][0] = m[0][0] * oth.m[0][0] + m[0][1] * oth.m[1][0] + m[0][2] * oth.m[2][0] + m[0][3] * oth.m[3][0];
            o.m[0][1] = m[0][0] * oth.m[0][1] + m[0][1] * oth.m[1][1] + m[0][2] * oth.m[2][1] + m[0][3] * oth.m[3][1];
            o.m[0][2] = m[0][0] * oth.m[0][2] + m[0][1] * oth.m[1][2] + m[0][2] * oth.m[2][2] + m[0][3] * oth.m[3][2];
            o.m[0][3] = m[0][0] * oth.m[0][3] + m[0][1] * oth.m[1][3] + m[0][2] * oth.m[2][3] + m[0][3] * oth.m[3][3];

            o.m[1][0] = m[1][0] * oth.m[0][0] + m[1][1] * oth.m[1][0] + m[1][2] * oth.m[2][0] + m[1][3] * oth.m[3][0];
            o.m[1][1] = m[1][0] * oth.m[0][1] + m[1][1] * oth.m[1][1] + m[1][2] * oth.m[2][1] + m[1][3] * oth.m[3][1];
            o.m[1][2] = m[1][0] * oth.m[0][2] + m[1][1] * oth.m[1][2] + m[1][2] * oth.m[2][2] + m[1][3] * oth.m[3][2];
            o.m[1][3] = m[1][0] * oth.m[0][3] + m[1][1] * oth.m[1][3] + m[1][2] * oth.m[2][3] + m[1][3] * oth.m[3][3];

            o.m[2][0] = m[2][0] * oth.m[0][0] + m[2][1] * oth.m[1][0] + m[2][2] * oth.m[2][0] + m[2][3] * oth.m[3][0];
            o.m[2][1] = m[2][0] * oth.m[0][1] + m[2][1] * oth.m[1][1] + m[2][2] * oth.m[2][1] + m[2][3] * oth.m[3][1];
            o.m[2][2] = m[2][0] * oth.m[0][2] + m[2][1] * oth.m[1][2] + m[2][2] * oth.m[2][2] + m[2][3] * oth.m[3][2];
            o.m[2][3] = m[2][0] * oth.m[0][3] + m[2][1] * oth.m[1][3] + m[2][2] * oth.m[2][3] + m[2][3] * oth.m[3][3];

            o.m[3][0] = m[3][0] * oth.m[0][0] + m[3][1] * oth.m[1][0] + m[3][2] * oth.m[2][0] + m[3][3] * oth.m[3][0];
            o.m[3][1] = m[3][0] * oth.m[0][1] + m[3][1] * oth.m[1][1] + m[3][2] * oth.m[2][1] + m[3][3] * oth.m[3][1];
            o.m[3][2] = m[3][0] * oth.m[0][2] + m[3][1] * oth.m[1][2] + m[3][2] * oth.m[2][2] + m[3][3] * oth.m[3][2];
            o.m[3][3] = m[3][0] * oth.m[0][3] + m[3][1] * oth.m[1][3] + m[3][2] * oth.m[2][3] + m[3][3] * oth.m[3][3];

            return o;
        }

GaExpInl GaVec3 Ga::GaMat4x4::operator* ( const GaVec3 &  v ) const

inline

Definition at line 405 of file GaTypes.h.

References Ga::GaVec3::x, Ga::GaVec3::y, and Ga::GaVec3::z.

        {
            GaFloat w = 1.0f / ( m[3][0] * v.x + m[3][1] * v.y + m[3][2] * v.z + m[3][3] );

            GaVec3 r(
                ( m[0][0] * v.x + m[0][1] * v.y + m[0][2] * v.z + m[0][3] ) * w,
                ( m[1][0] * v.x + m[1][1] * v.y + m[1][2] * v.z + m[1][3] ) * w,
                ( m[2][0] * v.x + m[2][1] * v.y + m[2][2] * v.z + m[2][3] ) * w );

            return r;
        }

GaExpInl GaMat4x4 Ga::GaMat4x4::operator* ( GaFloat  s )

inline

Definition at line 425 of file GaTypes.h.

        {
            return GaMat4x4
            (
                s*m[0][0], s*m[0][1], s*m[0][2], s*m[0][3],
                s*m[1][0], s*m[1][1], s*m[1][2], s*m[1][3],
                s*m[2][0], s*m[2][1], s*m[2][2], s*m[2][3],
                s*m[3][0], s*m[3][1], s*m[3][2], s*m[3][3]
            );
        }

GaExpInl GaFloat* Ga::GaMat4x4::operator[] ( GaUint  i )

inline

Definition at line 393 of file GaTypes.h.

        {
            assert(i < 4 && "GaMax4x4: subscript out of range");
            return m[i];
        }

GaExpInl const GaFloat* const Ga::GaMat4x4::operator[] ( GaUint  i ) const

inline

Definition at line 399 of file GaTypes.h.

        {
            assert(i < 4 && "GaMax4x4: subscript out of range");
            return m[i];
        }

GaExpInl void Ga::GaMat4x4::toFloatMatrix ( float *  o )

inline

Definition at line 417 of file GaTypes.h.

        {
            o[0] = m[0][0]; o[4] = m[0][1];  o[8] = m[0][2]; o[12] = m[0][3];
            o[1] = m[1][0]; o[5] = m[1][1];  o[9] = m[1][2]; o[13] = m[1][3];
            o[2] = m[2][0]; o[6] = m[2][1]; o[10] = m[2][2]; o[14] = m[2][3];
            o[3] = m[3][0]; o[7] = m[3][1]; o[11] = m[3][2]; o[15] = m[3][3];
        }

Member Data Documentation

GaFloat Ga::GaMat4x4::m[4][4]

Definition at line 440 of file GaTypes.h.

Referenced by determinant(), and operator*().

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The documentation for this class was generated from the following files:

• /backups/local/src/eve/EvEmu_Crucible/dep/gangsta/GaTypes.h
• /backups/local/src/eve/EvEmu_Crucible/dep/gangsta/GaTypes.cpp