From 4bfbb83d7ca4e0cea7ec5d2adfa55014eec69a8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mael=20Rouxel-Labb=C3=A9?=
 <mael.rouxel.labbe@geometryfactory.com>
Date: Tue, 5 Mar 2024 13:01:56 +0100
Subject: [PATCH] Add more VTK readers for the VTK image example

---
 .../examples/Isosurfacing_3/CMakeLists.txt       |  4 ++--
 .../Isosurfacing_3/contouring_vtk_image.cpp      | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
index b3ffadb762d..33a03a4f38a 100644
--- a/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
+++ b/Isosurfacing_3/examples/Isosurfacing_3/CMakeLists.txt
@@ -12,14 +12,14 @@ include(CGAL_Eigen3_support)
 find_package(TBB QUIET)
 include(CGAL_TBB_support)
 
-find_package(VTK QUIET COMPONENTS vtkImagingGeneral vtkIOImage vtkIOXML vtkIOLegacy NO_MODULE)
+find_package(VTK QUIET COMPONENTS vtkImagingGeneral vtkIOImage vtkIOXML vtkIOXML vtkIOMINC vtkIOLegacy NO_MODULE)
 if(VTK_FOUND)
   if(VTK_USE_FILE)
     include(${VTK_USE_FILE})
   endif()
   if("${VTK_VERSION_MAJOR}" GREATER "5" OR VTK_VERSION VERSION_GREATER 5)
     message(STATUS "VTK was found")
-    if(TARGET VTK::ImagingGeneral AND TARGET VTK::IOImage AND TARGET VTK::IOXML AND TARGET VTK::IOLegacy)
+    if(TARGET VTK::ImagingGeneral AND TARGET VTK::IOImage AND TARGET VTK::IOXML AND VTK::IOMINC AND TARGET VTK::IOLegacy)
       set(VTK_LIBRARIES VTK::ImagingGeneral VTK::IOImage VTK::IOXML VTK::IOLegacy)
     endif()
   else()
diff --git a/Isosurfacing_3/examples/Isosurfacing_3/contouring_vtk_image.cpp b/Isosurfacing_3/examples/Isosurfacing_3/contouring_vtk_image.cpp
index 65138a875d9..8f766e5a181 100644
--- a/Isosurfacing_3/examples/Isosurfacing_3/contouring_vtk_image.cpp
+++ b/Isosurfacing_3/examples/Isosurfacing_3/contouring_vtk_image.cpp
@@ -18,6 +18,8 @@
 #include <vtkMetaImageReader.h>
 #include <vtkXMLImageDataReader.h>
 #include <vtkTIFFReader.h>
+#include <vtkNrrdReader.h>
+#include <vtkMINCImageReader.h>
 
 #include <iostream>
 #include <vector>
@@ -124,6 +126,20 @@ int main(int argc, char* argv[])
     reader->Update();
     image = CGAL::IO::read_vtk_image_data(reader->GetOutput());
   }
+  else if(ext == "nrrd")
+  {
+    vtkNew<vtkNrrdReader> reader;
+    reader->SetFileName(argv[1]);
+    reader->Update();
+    image = CGAL::IO::read_vtk_image_data(reader->GetOutput());
+  }
+  else if(ext == "mnc")
+  {
+    vtkNew<vtkMINCImageReader> reader;
+    reader->SetFileName(argv[1]);
+    reader->Update();
+    image = CGAL::IO::read_vtk_image_data(reader->GetOutput());
+  }
   else
   {
     std::cerr << "Error: Unsupported file format" << std::endl;