public void GetScreenCoord(double wX, double wY, double wZ,
ref double scrX, ref double scrY, ref double scrZ)
{
unsafe
{
fixed(double *m_dModelViewMatrixPtr = m_dModelViewMatrix)
{
fixed(double *m_dProjectionMatrixPtr = m_dProjectionMatrix)
{
fixed(int *m_iViewportPtr = m_iViewport)
{
double scrXVal = scrX;
double scrYVal = scrY;
double scrZVal = scrZ;
OpenGLControl.gluProject(wX, wY, wZ,
m_dModelViewMatrixPtr, m_dProjectionMatrixPtr, m_iViewportPtr,
&scrXVal, &scrYVal, &scrZVal);
scrX = scrXVal;
scrY = scrYVal;
scrZ = scrZVal;
}
}
}
}
scrY = m_iViewport[3] - scrY;
scrZ += GetFocalLength();
}