//!Apply an OpenGL scale matrix to this
public GLMatrix4d applyScale(GLVector2d scale)
{
//improved version
//Assuming z = 1
m[0] *= scale.x; m[1] *= scale.x; m[2] *= scale.x; m[3] *= scale.x;
m[4] *= scale.y; m[5] *= scale.y; m[6] *= scale.y; m[7] *= scale.y;
return(this);
}
//!Apply an OpenGL translate matrix to this
public GLMatrix4d applyTranslate(GLVector2d trans)
{
////improved version
////assuming z = 0
m[12] += m[0] * trans.x + m[4] * trans.y;
m[13] += m[1] * trans.x + m[5] * trans.y;
m[14] += m[2] * trans.x + m[6] * trans.y;
return(this);
}
//!Apply an OpenGL translate matrix to this
public GLMatrix4d applyTranslate( GLVector2d trans)
{
////improved version
////assuming z = 0
m[12] += m[0]*trans.x + m[4]*trans.y;
m[13] += m[1]*trans.x + m[5]*trans.y;
m[14] += m[2]*trans.x + m[6]*trans.y;
return this;
}
//!Apply an OpenGL scale matrix to this
public GLMatrix4d applyScale( GLVector2d scale)
{
//improved version
//Assuming z = 1
m[0]*=scale.x; m[1]*=scale.x; m[2]*=scale.x; m[3]*=scale.x;
m[4]*=scale.y; m[5]*=scale.y; m[6]*=scale.y; m[7]*=scale.y;
return this;
}
//!Copy a vector
public GLVector2d( GLVector2d gv)
{
Buffer.BlockCopy( gv.val, 0, val, 0, Buffer.ByteLength( gv.val ) );
}
//!Get the vector projection of this and a vector
public GLVector2d vectorProjection( GLVector2d vin)
{
return this * dot(vin);
}
//!Get the projection of this and a vector
public double projection( GLVector2d vin)
{
return dot(vin);
}
//!Get the orthogonal projection of this and a vector
public GLVector2d orthogonalProjection( GLVector2d vin)
{
return vin - vectorProjection(vin);
}
//!Get the dot product of this and a vector
public double dot( GLVector2d gv)
{
return x*gv.x + y*gv.y;
}
//!Copy a vector
public GLVector2d(GLVector2d gv)
{
Buffer.BlockCopy(gv.val, 0, val, 0, Buffer.ByteLength(gv.val));
}
//!Get the vector projection of this and a vector
public GLVector2d vectorProjection(GLVector2d vin)
{
return(this * dot(vin));
}
//!Get the orthogonal projection of this and a vector
public GLVector2d orthogonalProjection(GLVector2d vin)
{
return(vin - vectorProjection(vin));
}
//!Get the projection of this and a vector
public double projection(GLVector2d vin)
{
return(dot(vin));
}
//!Get the dot product of this and a vector
public double dot(GLVector2d gv)
{
return(x * gv.x + y * gv.y);
}
