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Untwine
Untwine is software from Hobu, Inc. for creating Cloud Optimized Point Cloud (COPC) web services from PDAL-readable point cloud data sources.
License
Untwine is licensed under the GPLv3. Commercial licensing is possible by contacting Hobu, Inc. for pricing.
Installation
Untwine is available on conda-forge
(here) and can be installed using conda
conda install -c conda-forge untwine
Building Untwine:
The following steps will build the untwine
executable:
mkdir build
cd build
cmake ..
make
Using Untwine
untwine [options]
Example:
untwine --files=some_directory --output_dir=output_directory
Options
-
files
Input files or directories containing input files. [Required]
-
output_file
Output file. [Required]
-
a_srs
Assign an output SRS. Example
--a_srs EPSG:2056
-
no_srs
Don't read the SLR VLRs. This is only applicable to las files. [Default: false]
-
dims
List of dimensions to load. X, Y and Z are always loaded. Limiting the dimensions can speed runtime and reduce temporary disk use.
-
temp_dir
Directory in which to place tiled output. If not provided, temporary files are placed in 'output_dir'/temp.
-
cube
Create a voxel structure where each voxel is a cube. If false, the voxel structure is a rectangular solid that encloses the points. [Default: true]
-
level
Level to use when initially tiling points. If not provided, an initial level is determined from the data. [Default: none].
-
file_limit
Only read 'file_limit' input files even if more exist in the 'files' list. Used primarily for debugging. [Default: no limit]
-
stats
Generate summary statistics in 'ept.json' similar to those produced by Entwine for EPT output Min/max stats are always generated when generating single-file output. [Default: false]
-
single_file
Generate a LAZ file with spatially arranged data and hierarchy information (COPC). [Default: false]
-
preserve_temp_dir
Normally untwine deletes its temporary directory where tiled data is written. Set this to true to preserve an existing temporary directory and its contents. [Default: false]
-
progress_fd
File descriptor number of a pipe using the Untwine API to send progress and error messages. [Default: -1]
-
progress_debug
Set to true to have progress messages written to standard output. Disabled if 'progress_fd' is set to '1'. [Default: false]