Remove vcl_math calls

[clitk.git] / itk / clitkSliceBySliceRelativePositionFilter.txx

diff --git a/itk/clitkSliceBySliceRelativePositionFilter.txx b/itk/clitkSliceBySliceRelativePositionFilter.txx
index 16571ea7a224df6b17d87425d7cf8bde619a66b0..fc820be5ee44c48d8e37b2ebb2aa887b60e2921b 100644 (file)
--- a/itk/clitkSliceBySliceRelativePositionFilter.txx
+++ b/itk/clitkSliceBySliceRelativePositionFilter.txx
@@ -43,7 +43,7 @@ SliceBySliceRelativePositionFilter():
   SetObjectCCLSelectionDirection(1);
   ObjectCCLSelectionIgnoreSingleCCLFlagOff();
   VerboseSlicesFlagOff();
-  this->SetK1(vcl_acos(-1.0)/2);
+  this->SetK1(std::acos(-1.0)/2);
 }
 //--------------------------------------------------------------------