[vtkusers] SetCutPlane not working in vtkImageResliceMapper

[Debjit Ghosh]

Thanks David.

Do you find anything grossly incorrect with this? Because based on my
understanding of the solution to rotate the viewup vector based on the
orientation of the vtkImageSlice, I created a 3x3 matrix out of the X, Y, Z
values and rotated the default view up.
----------------------------------------------------------------------------------------------

double default_norm[] = {0,0,-1};
double viewup_derived[] = {0,0,-1};
double *orientation = this->imageslice->GetOrientation();
vtkSmartPointer<vtkMatrix3x3> matrix = vtkSmartPointer<vtkMatrix3x3>::New();
double azimuth = orientation[0];
double elevation = orientation[1];
double roll = orientation[2];

//Set the 1st col
matrix->SetElement(0, 0, cos(Deg_to_Rad(azimuth)) *
cos(Deg_to_Rad(elevation)));
matrix->SetElement(1, 0, sin(Deg_to_Rad(azimuth)) *
cos(Deg_to_Rad(elevation)));
matrix->SetElement(2, 0, -sin(Deg_to_Rad(elevation)));

//Set the 2nd col
matrix->SetElement(0, 1, (cos(Deg_to_Rad(azimuth)) *
sin(Deg_to_Rad(elevation)) * sin(Deg_to_Rad(roll))) -
(sin(Deg_to_Rad(azimuth))*cos(Deg_to_Rad(roll))));
matrix->SetElement(1, 1, (sin(Deg_to_Rad(azimuth)) *
sin(Deg_to_Rad(elevation)) * sin(Deg_to_Rad(roll))) +
(cos(Deg_to_Rad(azimuth))*cos(Deg_to_Rad(roll))));
matrix->SetElement(2, 1, cos(Deg_to_Rad(elevation)) *
sin(Deg_to_Rad(roll)));

//Set the 3rd col
matrix->SetElement(0, 2, (cos(Deg_to_Rad(azimuth)) *
sin(Deg_to_Rad(elevation)) * cos(Deg_to_Rad(roll))) +
(sin(Deg_to_Rad(azimuth)) * sin(Deg_to_Rad(roll))));
matrix->SetElement(1, 2, (sin(Deg_to_Rad(azimuth)) *
sin(Deg_to_Rad(elevation)) * cos(Deg_to_Rad(roll))) -
(cos(Deg_to_Rad(azimuth)) * sin(Deg_to_Rad(roll))));
matrix->SetElement(2, 2, cos(Deg_to_Rad(elevation)) *
cos(Deg_to_Rad(roll)));

matrix->MultiplyPoint(default_norm, viewup_derived);



--
View this message in context: http://vtk.1045678.n5.nabble.com/SetCutPlane-not-working-in-vtkImageResliceMapper-tp5716627p5719704.html
Sent from the VTK - Users mailing list archive at Nabble.com.