1 /* 2 * Medical Image Registration ToolKit (MIRTK) 3 * 4 * Copyright 2013-2015 Imperial College London 5 * Copyright 2013-2018 Andreas Schuh 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #include "mirtk/BSpline.h" 21 22 namespace mirtk { 23 24 25 #ifndef __clang__ 26 27 // Lookup table of B-spline function values 28 template <class TReal> MIRTK_Numerics_EXPORT TReal BSpline<TReal>::WeightLookupTable[BSpline<TReal>::LookupTableSize]; 29 30 // Lookup table of B-spline basis function values 31 template <class TReal> MIRTK_Numerics_EXPORT TReal BSpline<TReal>::LookupTable [BSpline<TReal>::LookupTableSize][4]; 32 template <class TReal> MIRTK_Numerics_EXPORT TReal BSpline<TReal>::LookupTable_I [BSpline<TReal>::LookupTableSize][4]; 33 template <class TReal> MIRTK_Numerics_EXPORT TReal BSpline<TReal>::LookupTable_II[BSpline<TReal>::LookupTableSize][4]; 34 35 // Wether lookup tables of B-spline kernel were initialized 36 template <class TReal> MIRTK_Numerics_EXPORT bool BSpline<TReal>::_initialized = false; 37 38 #endif // !defined(__clang__) 39 40 41 // Explicit template instantiations 42 template class BSpline<float>; 43 template class BSpline<double>; 44 45 46 } // namespace mirtk 47