From f33eadb6cb9660c3ec2c1a558fe6b59dc145f018 Mon Sep 17 00:00:00 2001
From: tbaudier <thomas.baudier@creatis.insa-lyon.fr>
Date: Fri, 9 Mar 2018 11:49:15 +0100
Subject: [PATCH] Add saveAs function to save a text file in
 clitkHistogramImage

---
 tools/CMakeLists.txt                       |  5 +++-
 tools/clitkHistogramImage.cxx              |  1 +
 tools/clitkHistogramImageGenericFilter.cxx | 30 +++++++++++++++++++++-
 tools/clitkHistogramImageGenericFilter.h   |  3 +++
 4 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index a050ba8..606027e 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -62,11 +62,14 @@ if(CLITK_BUILD_TOOLS)
   target_link_libraries(clitkBinarizeImage clitkBinarizeImageLib clitkCommon)
   set(TOOLS_INSTALL ${TOOLS_INSTALL} clitkBinarizeImage)
 
-
   add_executable(clitkProfileImage clitkProfileImage.cxx)
   target_link_libraries(clitkProfileImage clitkProfileImageLib clitkCommon)
   set(TOOLS_INSTALL ${TOOLS_INSTALL} clitkProfileImage)
 
+  add_executable(clitkHistogramImage clitkHistogramImage.cxx)
+  target_link_libraries(clitkHistogramImage clitkHistogramImageLib clitkCommon)
+  set(TOOLS_INSTALL ${TOOLS_INSTALL} clitkHistogramImage)
+
   WRAP_GGO(clitkVFResample_GGO_C clitkVFResample.ggo)
   add_executable(clitkVFResample clitkVFResample.cxx clitkVFResampleGenericFilter.cxx ${clitkVFResample_GGO_C})
   target_link_libraries(clitkVFResample clitkCommon)
diff --git a/tools/clitkHistogramImage.cxx b/tools/clitkHistogramImage.cxx
index 0cb5ac9..d853abf 100644
--- a/tools/clitkHistogramImage.cxx
+++ b/tools/clitkHistogramImage.cxx
@@ -35,6 +35,7 @@ int main(int argc, char * argv[])
   filter->SetArgsInfo(args_info);
 
   CLITK_TRY_CATCH_EXIT(filter->Update());
+  filter->SaveAs();
 
   return EXIT_SUCCESS;
 } // This is the end, my friend
diff --git a/tools/clitkHistogramImageGenericFilter.cxx b/tools/clitkHistogramImageGenericFilter.cxx
index 49e3fa0..f93f213 100644
--- a/tools/clitkHistogramImageGenericFilter.cxx
+++ b/tools/clitkHistogramImageGenericFilter.cxx
@@ -130,7 +130,10 @@ HistogramImageGenericFilter::UpdateWithInputImageType()
   //compute bin number
   typedef typename HistogramFilterType::HistogramSizeType SizeType;
   SizeType binNumber(1);
-  mBinSize = std::log(range);
+  if (!mArgsInfo.size_given)
+    mBinSize = std::log(range);
+  if (mBinSize == 0)
+    mBinSize = 1;
   binNumber[0] = (int)(range/mBinSize);
   if (binNumber[0] == 0)
     binNumber[0] = 1;
@@ -159,6 +162,31 @@ HistogramImageGenericFilter::UpdateWithInputImageType()
 }
 //--------------------------------------------------------------------
 
+//------------------------------------------------------------------------------
+void HistogramImageGenericFilter::SaveAs()
+{
+  // Output
+  std::string textFileName = GetOutputFilename();
+  ofstream fileOpen(textFileName.c_str(), std::ofstream::trunc);
+
+  if(!fileOpen) {
+      cerr << "Error during saving" << endl;
+      return;
+  }
+
+  int i(0);
+  fileOpen << "Value represents the number of voxels around the corresponding intensity (by default the windows size around intensity is log(range))" << endl;
+  fileOpen << "Intensity" << "\t" << "Value" << endl;
+
+  while (i<mArrayX->GetNumberOfTuples()) {
+      fileOpen << mArrayX->GetTuple(i)[0] << "\t" << mArrayY->GetTuple(i)[0] << endl;
+      ++i;
+  }
+
+  fileOpen.close();
+}
+//------------------------------------------------------------------------------
+
 
 }//end clitk
 
diff --git a/tools/clitkHistogramImageGenericFilter.h b/tools/clitkHistogramImageGenericFilter.h
index d963fbc..999eda9 100644
--- a/tools/clitkHistogramImageGenericFilter.h
+++ b/tools/clitkHistogramImageGenericFilter.h
@@ -52,6 +52,9 @@ namespace clitk
     void SetArgsInfo(const args_info_type & a);
     void SetSizeBin (const double size);
 
+    // Save the histogram to txt file
+    void SaveAs();
+
     //--------------------------------------------------------------------
     // Main function called each time the filter is updated
     template<class InputImageType>  
-- 
2.46.1