STYLE: Replace Index var; var.Fill with auto var = Index::Filled

Follow-up to ITK pull request InsightSoftwareConsortium/ITK#4906
commit InsightSoftwareConsortium/ITK@3ff56ea

Author: N-Dekker

src/Core/Common/AddOffsetToIndex/Code.cxx

@@ -26,8 +26,7 @@ main()
 {
   constexpr unsigned int Dimension = 2;
 
-  itk::Index<Dimension> index;
-  index.Fill(5);
+  auto index = itk::Index<Dimension>::Filled(5);
 
   itk::Offset<Dimension> offset;
   offset.Fill(1);

src/Core/Common/CreateAnImageRegion/Code.cxx

@@ -26,8 +26,7 @@ main()
   using RegionType = itk::ImageRegion<Dimension>;
   auto size = RegionType::SizeType::Filled(3);
 
-  RegionType::IndexType index;
-  index.Fill(1);
+  auto index = RegionType::IndexType::Filled(1);
 
   RegionType region(index, size);
 

src/Core/Common/CropImageBySpecifyingRegion/Code.cxx

@@ -38,8 +38,7 @@ main()
 
   std::cout << "Image largest region: " << image->GetLargestPossibleRegion() << std::endl;
 
-  ImageType::IndexType desiredStart;
-  desiredStart.Fill(3);
+  auto desiredStart = ImageType::IndexType::Filled(3);
 
   auto desiredSize = ImageType::SizeType::Filled(4);
 
@@ -60,8 +59,7 @@ main()
   output->DisconnectPipeline();
   output->FillBuffer(2);
 
-  itk::Index<2> index;
-  index.Fill(5);
+  auto index = itk::Index<2>::Filled(5);
 
   std::cout << "new largest region: " << output->GetLargestPossibleRegion() << std::endl;
   std::cout << "new: " << (int)output->GetPixel(index) << std::endl;

src/Core/Common/DistanceBetweenIndices/Code.cxx

@@ -25,11 +25,9 @@
 int
 main()
 {
-  itk::Index<2> pixel1;
-  pixel1.Fill(2);
+  auto pixel1 = itk::Index<2>::Filled(2);
 
-  itk::Index<2> pixel2;
-  pixel2.Fill(4);
+  auto pixel2 = itk::Index<2>::Filled(4);
 
   itk::Point<double, 2> p1;
   p1[0] = pixel1[0];

src/Core/Common/IterateImageStartingAtSeed/Code.cxx

@@ -73,8 +73,7 @@ CreateImage(ImageType::Pointer image)
   // Make a line
   for (unsigned int i = 20; i < 50; ++i)
   {
-    itk::Index<2> pixelIndex;
-    pixelIndex.Fill(i);
+    auto pixelIndex = itk::Index<2>::Filled(i);
 
     image->SetPixel(pixelIndex, 255);
   }

src/Core/ImageFunction/ComputeMedianOfImageAtPixel/Code.cxx

@@ -35,8 +35,7 @@ main()
   auto medianImageFunction = MedianImageFunctionType::New();
   medianImageFunction->SetInputImage(image);
 
-  itk::Index<2> index;
-  index.Fill(10);
+  auto index = itk::Index<2>::Filled(10);
   std::cout << "Median at " << index << " is " << static_cast<int>(medianImageFunction->EvaluateAtIndex(index))
             << std::endl;
   return EXIT_SUCCESS;

src/Core/ImageFunction/MultiplyKernelWithAnImageAtLocation/Code.cxx

@@ -44,24 +44,21 @@ main()
   neighborhoodOperatorImageFunction->SetInputImage(image);
 
   {
-    itk::Index<2> index;
-    index.Fill(20);
+    auto index = itk::Index<2>::Filled(20);
 
     float output = neighborhoodOperatorImageFunction->EvaluateAtIndex(index);
     std::cout << "Sum on border: " << output << std::endl;
   }
 
   {
-    itk::Index<2> index;
-    index.Fill(35);
+    auto index = itk::Index<2>::Filled(35);
 
     float output = neighborhoodOperatorImageFunction->EvaluateAtIndex(index);
     std::cout << "Sum in center: " << output << std::endl;
   }
 
   {
-    itk::Index<2> index;
-    index.Fill(7);
+    auto index = itk::Index<2>::Filled(7);
 
     float output = neighborhoodOperatorImageFunction->EvaluateAtIndex(index);
     std::cout << "Sum outside: " << output << std::endl;

src/Filtering/Convolution/ColorNormalizedCorrelation/Code.cxx

@@ -60,8 +60,7 @@ main(int argc, char * argv[])
 
   auto extractFilter = ExtractFilterType::New();
 
-  FloatImageType::IndexType start;
-  start.Fill(50);
+  auto start = FloatImageType::IndexType::Filled(50);
 
   auto patchSize = FloatImageType::SizeType::Filled(51);
 

src/Filtering/Convolution/NormalizedCorrelation/Code.cxx

@@ -49,8 +49,7 @@ main(int argc, char * argv[])
 
   auto extractFilter = ExtractFilterType::New();
 
-  FloatImageType::IndexType start;
-  start.Fill(50);
+  auto start = FloatImageType::IndexType::Filled(50);
 
   auto patchSize = FloatImageType::SizeType::Filled(51);
 

src/Filtering/DistanceMap/ApproxDistanceMapOfBinary/Code.cxx

@@ -85,8 +85,7 @@ CreateImage(UnsignedCharImageType::Pointer image)
   // Create a line of white pixels
   for (unsigned int i = 40; i < 60; ++i)
   {
-    itk::Index<2> pixel;
-    pixel.Fill(i);
+    auto pixel = itk::Index<2>::Filled(i);
     image->SetPixel(pixel, 255);
   }
 }