Edit Package libght

GeoHashTree for Point Cloud Data

A file format and library for storing and rapidly accessing point cloud data, in particular LIDAR data.

GeoHashTree organizes points into a tree structure for fast spatial access. The tree structure itself encodes the significant bits of at each node, so child nodes can omit them. The result is a smaller file than if all the points were stored with full precision. Each node includes statistical information about the children below (e.g. average/median Z value) permitting fast overview generation. Additional attributes are attached to the tree at parent nodes, below which all children share the attribute value. This reduces duplicate data storage further.

The advantage of a GeoHashTree file over a LAS file is fast access and filtering, since the tree encodes useful information at each node to speed searches over the full set of points in the file. LASZ zipped files can be smaller, but will be less efficient at overviews, searching and sub-setting. GHT is a good working format for applications that will be filtering and querying large sets of LIDAR data.

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Source Files
Filename Size Changed
0001-Allow-install-dir-over-ride.patch 0000001647 1.61 KB almost 7 years
0002-Clean-build-on-OSX-Mountain-Lion.patch 0000007325 7.15 KB almost 7 years
0003-Up-patch-version.patch 0000000659 659 Bytes almost 7 years
0004-Small-fixes.patch 0000003102 3.03 KB almost 7 years
0005-Recomment-test-noise.patch 0000000888 888 Bytes almost 7 years
0006-Move-some-private-functions-to-public.patch 0000002885 2.82 KB almost 7 years
0007-Fix-build-error.patch 0000000743 743 Bytes almost 7 years
0008-so-version_build-cmake-install.patch 0000001938 1.89 KB almost 7 years
0009-return_random_data_function-non-void.patch 0000000595 595 Bytes almost 7 years
0010-Exclude-eclipse-stuff.patch 0000000460 460 Bytes over 6 years
0011-Exclude-eclipse-stuff.patch 0000000460 460 Bytes over 6 years
0012-Initialize-GhtHash-before-passing-it-for-read-to-ght.patch 0000000718 718 Bytes over 6 years
0013-Do-not-write-more-bytes-than-allowed-in-ght_node_to_.patch 0000001321 1.29 KB over 6 years
0014-Initialize-GhtHash-before-passing-it-for-read-to-ght.patch 0000000754 754 Bytes over 6 years
0015-Ensure-hash-is-null-terminated-in-ght_node_to_nodeli.patch 0000001071 1.05 KB over 6 years
0016-Enable-travis-build-closes-15.patch 0000000935 935 Bytes over 6 years
libght-0.1.0.tar.gz 0000057017 55.7 KB almost 8 years
libght.changes 0000002818 2.75 KB over 3 years
libght.spec 0000005947 5.81 KB over 3 years
rpmlintrc 0000000254 254 Bytes over 7 years
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