20 lines
759 B
C++
20 lines
759 B
C++
#ifndef SPACEFILLING_H
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#define SPACEFILLING_H
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#include <cstdint>
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// http://and-what-happened.blogspot.com/2011/08/fast-2d-and-3d-hilbert-curves-and.html
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namespace SpaceFilling
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{
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uint32_t MortonToHilbert3D(const uint32_t morton, const uint32_t bits);
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uint32_t HilbertToMorton3D(const uint32_t hilbert, const uint32_t bits);
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uint32_t Morton_3D_Encode_5bit(uint32_t index1, uint32_t index2, uint32_t index3);
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void Morton_3D_Decode_5bit(const uint32_t morton, uint32_t &index1, uint32_t &index2, uint32_t &index3);
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uint32_t Morton_3D_Encode_10bit(uint32_t index1, uint32_t index2, uint32_t index3);
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void Morton_3D_Decode_10bit(const uint32_t morton, uint32_t &index1, uint32_t &index2, uint32_t &index3);
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void initLUT();
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};
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#endif
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