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A very fast static spatial index for 2D points based on a flat KD-tree, using https://github.com/mourner/kdbush.hpp Compared to QgsSpatialIndex, this index: - supports single point features only (no multipoints) - is static (features cannot be added or removed from the index after construction) - is much faster! - supports true "distance based" searches, i.e. return all points within a radius from a search point
14 lines
737 B
Plaintext
14 lines
737 B
Plaintext
Copyright (c) 2016, Vladimir Agafonkin
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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