removed some functions that made no sense

These were probably copy-paste from the 1D version, but don't make
sense in 2D or 3D.

Author: KrisThielemans

src/buildblock/ArrayFilter2DUsingConvolution.cxx

@@ -47,6 +47,8 @@ ArrayFilter2DUsingConvolution<elemT>::is_trivial() const
          || (filter_coefficients.get_length() == 1 && filter_coefficients.get_min_index() == 0 && filter_coefficients[0][0] == 1);
 }
 
+#if 0
+// commented out as it does not make sense to have a 1D IndexRange for a 2D filter
 template <typename elemT>
 Succeeded
 ArrayFilter2DUsingConvolution<elemT>::get_influencing_indices(IndexRange<1>& influencing_index_range,
@@ -70,6 +72,7 @@ ArrayFilter2DUsingConvolution<elemT>::get_influenced_indices(IndexRange<1>& infl
                                                output_index_range.get_max_index() + filter_coefficients.get_max_index());
   return Succeeded::yes;
 }
+#endif
 
 template <typename elemT>
 void

src/buildblock/ArrayFilter3DUsingConvolution.cxx

@@ -59,6 +59,8 @@ ArrayFilter3DUsingConvolution<elemT>::is_trivial() const
              && filter_coefficients[0][0][0] == 1);
 }
 
+#if 0
+// commented out as it does not make sense to have a 1D IndexRange for a 2D filter
 template <typename elemT>
 Succeeded
 ArrayFilter3DUsingConvolution<elemT>::get_influencing_indices(IndexRange<1>& influencing_index_range,
@@ -82,6 +84,7 @@ ArrayFilter3DUsingConvolution<elemT>::get_influenced_indices(IndexRange<1>& infl
                                                output_index_range.get_max_index() + filter_coefficients.get_max_index());
   return Succeeded::yes;
 }
+#endif
 
 #if 1
 template <typename elemT>

src/include/stir/ArrayFilter2DUsingConvolution.h

@@ -40,9 +40,12 @@ class ArrayFilter2DUsingConvolution : public ArrayFunctionObject_2ArgumentImplem
 
   bool is_trivial() const override;
 
+#if 0
+  // commented out as it does not make sense to have a 1D IndexRange for a 2D filter
   virtual Succeeded get_influencing_indices(IndexRange<1>& influencing_indices, const IndexRange<1>& output_indices) const;
 
   virtual Succeeded get_influenced_indices(IndexRange<1>& influenced_indices, const IndexRange<1>& input_indices) const;
+#endif
 
 private:
   Array<2, float> filter_coefficients;

src/include/stir/ArrayFilter3DUsingConvolution.h

@@ -40,9 +40,12 @@ class ArrayFilter3DUsingConvolution : public ArrayFunctionObject_2ArgumentImplem
 
   bool is_trivial() const override;
 
+#if 0
+  // commented out as it does not make sense to have a 1D IndexRange for a 2D filter
   virtual Succeeded get_influencing_indices(IndexRange<1>& influencing_indices, const IndexRange<1>& output_indices) const;
 
   virtual Succeeded get_influenced_indices(IndexRange<1>& influenced_indices, const IndexRange<1>& input_indices) const;
+#endif
 
 private:
   Array<3, float> filter_coefficients;