StdProjectionMatrix Class Reference

#include <StdMeshMath.h>

Public Member Functions
float &	operator() (int i, int j)
float	operator() (int i, int j) const
const float *	data () const

Static Public Member Functions
static StdProjectionMatrix	Identity ()
static StdProjectionMatrix	Translate (float dx, float dy, float dz)
static StdProjectionMatrix	Scale (float sx, float sy, float sz)
static StdProjectionMatrix	Rotate (float angle, float rx, float ry, float rz)
static StdProjectionMatrix	Orthographic (float left, float right, float bottom, float top)
static StdMeshMatrix	Upper3x4 (const StdProjectionMatrix &matrix)

Static Public Attributes
static const int	NColumns = 4
static const int	NRows = 4

Detailed Description

Definition at line 119 of file StdMeshMath.h.

Member Function Documentation

data()

const float* StdProjectionMatrix::data ( ) const

inline

Definition at line 137 of file StdMeshMath.h.

{ return &a[0][0]; }

Referenced by C4ShaderCall::SetUniformMatrix4x4().

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Identity()

StdProjectionMatrix StdProjectionMatrix::Identity ( )

static

Definition at line 364 of file StdMeshMath.cpp.

{
    StdProjectionMatrix m;
    m.a[0][0] = 1.0f; m.a[0][1] = 0.0f; m.a[0][2] = 0.0f; m.a[0][3] = 0.0f;
    m.a[1][0] = 0.0f; m.a[1][1] = 1.0f; m.a[1][2] = 0.0f; m.a[1][3] = 0.0f;
    m.a[2][0] = 0.0f; m.a[2][1] = 0.0f; m.a[2][2] = 1.0f; m.a[2][3] = 0.0f;
    m.a[3][0] = 0.0f; m.a[3][1] = 0.0f; m.a[3][2] = 0.0f; m.a[3][3] = 1.0f;
    return m;
}

Referenced by C4ParticleList::Draw(), CStdGL::PerformMesh(), and CStdGL::SetupMultiBlt().

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operator()() [1/2]

float& StdProjectionMatrix::operator() ( int  i, int  j  )

inline

Definition at line 134 of file StdMeshMath.h.

{ return a[i][j]; }

operator()() [2/2]

float StdProjectionMatrix::operator() ( int  i, int  j  ) const

inline

Definition at line 135 of file StdMeshMath.h.

{ return a[i][j]; }

Orthographic()

StdProjectionMatrix StdProjectionMatrix::Orthographic ( float  left, float  right, float  bottom, float  top  )

static

Definition at line 411 of file StdMeshMath.cpp.

{
    StdProjectionMatrix matrix;
    matrix(0,0) = 2.0f / (right - left);
    matrix(0,1) = 0.0f;
    matrix(0,2) = 0.0f;
    matrix(0,3) = -(right + left) / (right - left);
    matrix(1,0) = 0.0f;
    matrix(1,1) = 2.0f / (top - bottom);
    matrix(1,2) = 0.0f;
    matrix(1,3) = -(top + bottom) / (top - bottom);
    matrix(2,0) = 0.0f;
    matrix(2,1) = 0.0f;
    matrix(2,2) = -1.0f;
    matrix(2,3) = 0.0f;
    matrix(3,0) = 0.0f;
    matrix(3,1) = 0.0f;
    matrix(3,2) = 0.0f;
    matrix(3,3) = 1.0f;
    return matrix;
}

References C4ScriptGuiWindowPropertyName::bottom, C4ScriptGuiWindowPropertyName::left, C4ScriptGuiWindowPropertyName::right, and C4ScriptGuiWindowPropertyName::top.

Referenced by C4FoWRegion::Render(), and CStdGL::UpdateClipper().

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Rotate()

StdProjectionMatrix StdProjectionMatrix::Rotate ( float  angle, float  rx, float  ry, float  rz  )

static

Definition at line 394 of file StdMeshMath.cpp.

{
    StdProjectionMatrix m;
 
    // We do normalize the rx,ry,rz vector here: This is only required for
    // precalculations anyway, thus not time-critical.
    float abs = sqrt(rx*rx+ry*ry+rz*rz);
    rx/=abs; ry/=abs; rz/=abs;
    float c = cos(angle), s = sin(angle);
 
    m.a[0][0] = rx*rx*(1-c)+c;    m.a[0][1] = rx*ry*(1-c)-rz*s; m.a[0][2] = rx*rz*(1-c)+ry*s; m.a[0][3] = 0.0f;
    m.a[1][0] = ry*rx*(1-c)+rz*s; m.a[1][1] = ry*ry*(1-c)+c;    m.a[1][2] = ry*rz*(1-c)-rx*s; m.a[1][3] = 0.0f;
    m.a[2][0] = rz*rx*(1-c)-ry*s; m.a[2][1] = ry*rz*(1-c)+rx*s; m.a[2][2] = rz*rz*(1-c)+c;    m.a[2][3] = 0.0f;
    m.a[3][0] = 0.0f; m.a[3][1] = 0.0f; m.a[3][2] = 0.0f; m.a[3][3] = 1.0f;
    return m;
}

References s.

Scale()

StdProjectionMatrix StdProjectionMatrix::Scale ( float  sx, float  sy, float  sz  )

static

Definition at line 384 of file StdMeshMath.cpp.

{
    StdProjectionMatrix m;
    m.a[0][0] = sx;   m.a[0][1] = 0.0f; m.a[0][2] = 0.0f; m.a[0][3] = 0.0f;
    m.a[1][0] = 0.0f; m.a[1][1] = sy;   m.a[1][2] = 0.0f; m.a[1][3] = 0.0f;
    m.a[2][0] = 0.0f; m.a[2][1] = 0.0f; m.a[2][2] = sz;   m.a[2][3] = 0.0f;
    m.a[3][0] = 0.0f; m.a[3][1] = 0.0f; m.a[3][2] = 0.0f; m.a[3][3] = 1.0f;
    return m;
}

Translate()

StdProjectionMatrix StdProjectionMatrix::Translate ( float  dx, float  dy, float  dz  )

static

Definition at line 374 of file StdMeshMath.cpp.

{
    StdProjectionMatrix m;
    m.a[0][0] = 1.0f; m.a[0][1] = 0.0f; m.a[0][2] = 0.0f; m.a[0][3] = dx;
    m.a[1][0] = 0.0f; m.a[1][1] = 1.0f; m.a[1][2] = 0.0f; m.a[1][3] = dy;
    m.a[2][0] = 0.0f; m.a[2][1] = 0.0f; m.a[2][2] = 1.0f; m.a[2][3] = dz;
    m.a[3][0] = 0.0f; m.a[3][1] = 0.0f; m.a[3][2] = 0.0f; m.a[3][3] = 1.0f;
    return m;
}

Referenced by CStdGL::PerformMultiPix().

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Upper3x4()

StdMeshMatrix StdProjectionMatrix::Upper3x4 ( const StdProjectionMatrix &  matrix )

static

Definition at line 433 of file StdMeshMath.cpp.

{
    StdMeshMatrix m;
    m(0, 0) = matrix.a[0][0]; m(0, 1) = matrix.a[0][1]; m(0, 2) = matrix.a[0][2]; m(0, 3) = matrix.a[0][3];
    m(1, 0) = matrix.a[1][0]; m(1, 1) = matrix.a[1][1]; m(1, 2) = matrix.a[1][2]; m(1, 3) = matrix.a[1][3];
    m(2, 0) = matrix.a[2][0]; m(2, 1) = matrix.a[2][1]; m(2, 2) = matrix.a[2][2]; m(2, 3) = matrix.a[2][3];
    return m;
}

Referenced by CStdGL::SetupMultiBlt().

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Member Data Documentation

NColumns

const int StdProjectionMatrix::NColumns = 4

static

Definition at line 122 of file StdMeshMath.h.

NRows

const int StdProjectionMatrix::NRows = 4

static

Definition at line 123 of file StdMeshMath.h.

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

• StdMeshMath.h
• StdMeshMath.cpp