================================================================================
1.6.0
================================================================================
Changes of Note
===============
- PDAL's Travis CI configuration is now based on Alpine Linux.
- PDAL is now built into containers with Alpine linux in addition to
Ubuntu linux. `Tags <https://hub.docker.com/r/pdal/pdal/tags/>`__
exist for each release, starting with 1.4, as well as the master
branch.
- Pipeline tag names can now contain capital letters. They can also
contain underscores after the first character.
- Replace ``filters.programmable`` and ``filters.predicate`` with the
more general ``filters.python``.
- Add support for Matlab with ``filters.matlab``\ (#1661).
- Remove the ``approximate`` option from ``filters.pmf`` and add an
``exponential`` option.p
- Placed base64 encoded VLR data in a subnode of the VLR itself with
the key "data" rather than duplicate the VLR node itself (#1648).
- XML pipelines are no longer supported (#1666).
- The number of proprietary dimensions in ``readers.text`` was expanded
from 255 to 4095 (#1657).
- API hooks have been added to support the use of PDAL with JVM
languages such as Java or Scala.
- Added support for LASzip 1.4 and switch to use the new LASzip API.
(#1205). LASzip support in PDAL will require LASzip.org release 3.1.0
or greater.
- The cpd kernel has been replaced with ``filters.cpd``.
- No more warnings about ReturnNumber or NumberOfReturns for LAS
permuations (#1682).
- The KernelFactory class has been removed. Its functionality has been
moved to StageFactory.
- Built-in eigen support has changed from version 3.2.8 to 3.3.4
(#1681).
Enhancements
============
- API users can now create synonyms for existing arguments to a stage.
- ``filters.splitter`` can now create buffered tiles with the
``buffer`` option.
- ``writers.ply``\ can now be made to write faces of an existing mesh
(created with ``filters.greedyprojection`` or ``filters.poisson``) if
the ``faces`` option is used. An option ``dims`` has also been added
that allows specification of the dimensions to be written as PLY
elements. The writer also now supports streaming mode.
- ``readers.text`` is now automatically invoked for .csv files.
- PDAL\_PLUGIN\_INSTALL\_PATH can now be set via override when building
PDAL from source.
- Changed the use of null devices to eliminate potentially running out
of file descriptors on Windows.
- ``filters.randomize`` can now be created by the stage factory
(#1598).
- Provide the ability to specify a viewpoint and normal orientation in
``filters.normal`` (#1638).
- ``readers.las`` now provides the ``ignore_vlr`` option to allow named
VLRs to be dropped when read (#1651).
- Allow ``writers.gdal`` to write output rasters of type other than
double (#1497).
- ``filters.sqlite`` is now invoked automatically for .gpkg files.
- ``filters.colorinterp`` can now be used in streaming mode in some
cases (#1675).
- Pointers can now be stored as metadata.
- ``filters.ferry`` can now create new dimensions without copying data
(#1694).
Documentation
-------------
- Remove some leftover references to the ``classify`` and ``extract``
options that were removed from ``filters.ground`` in the last
release.
- Add a note about running pgpointcloud tests.
- Added a tutorial on filtering data with python.
- Remove lingering XML pipeline examples and replace with JSON.
- Many updates and corrections to the workshop.
- Added to the FAQs and entry about why a stage might not be found.
- Added information to stage docs to indicate whether or not they were
buit-in rather than plugins (#1612).
- Added information to stage docs to indicate when they are streamable
(#1606).
New filters
===========
- ``filters.greedyprojection`` - Performs triangulation of points
(surface reconstruction) based on the greedy projection algorithm.
- ``filters.poisson`` - Performs triangulation of points (surface
reconstruction) based on the algorithm of Kazhdan.
- ``filters.head`` - Passes through only the first N points.
- ``filters.tail`` - Passes through only the last N points.
- ``filters.cpd`` - Calculates and applies a transformation to align
two datasets using the `Coherent Point
Drift <https://sites.google.com/site/myronenko/research/cpd>`__
registration algorithm.
- ``filters.icp`` - Calculates and applies a transformation to align
two datasets using the `Iterative Closest
Point <http://docs.pointclouds.org/trunk/classpcl_1_1_iterative_closest_point.html>`__
registration algorithm.
- ``filters.voxelcenternearestneighbor`` - Finds points closest to the
center of a voxel (#1597).
- ``filters.voxelcentroidnearestneighbor`` - Finds points closest to
the controid of points in a voxel (#1597).
- ``filters.python`` - Replaces ``filters.predicate`` and
``filters.programmable``.
- ``filters.matlab`` - Provides support for matlab manipulation of PDAL
points and metadata (#1661).
New readers
===========
- Add ``readers.osg`` to support Open Scene Graph format.
- Add ``readers.matlab`` to support reading data from a user-defined
Matlab array struct. The same structure is written by
``writers.matlab``.
Bug fixes
=========
- Fixed a case where\ ``kernels.tindex`` would unconditionally set the
spatial reference on a feature from the ``a_srs`` option. The spatial
reference stored in ``a_srs`` is now only used if explicitly set or
no spatial reference was present.
- Fixed a case where 'writers.gdal\` could fail to check for an
out-of-bounds point, potentially leading to a crash.
- Fix an error in 'filters.cluster' where the points wouldn't properly
be placed in the first cluster because the starting cluster number
was incorrect.
- Fixed an error in freeing OGR features that could cause a crash when
running "pdal density".
- Fix potential memory leaks when creating OGRSpatialReference objects.
- Make sure the ``global_encoding`` option is initialized to 0 in
``writers.las`` (#1595).
- Fix eigen::computeCovariance to compute the correct sample
covariance.
- In some cases, the ``filters.crop`` would attempt to treat a 2D
bounding box as 3D, yeilding a NULL bounding box and an error in
behavior (#1626).
- Fixed potential crash when using PDAL with multiple threads by
providing locking for gdal::ErrorHandler (#1637)
- Made sure that an uncompressed LAS file would be properly read even
if the ``compression`` option was provided.
- Throw an exception instead of crash when attempting to access a
non-existent color ramp. (#1688)
================================================================================
1.5.0
================================================================================
Changes of Note
===============
- PCL ``--visualize`` capability of the ``pdal`` command line
application has been removed.
- ``writer.derivative`` has been removed. Use
`gdaldem <http://www.gdal.org/gdaldem.html>`__ for faster and more
featureful equivalent functionality.
- GeoTIFF and Proj.4 are now required dependencies.
- ``writers.p2g`` has been removed. It was replaced by ``writers.gdal``
in 1.4, but the P2G writer was essentially unmaintained and we will
be using the GDAL one going forward.
- ``filters.attribute`` was split into ``filters.assign`` and
``filters.overlay`` to separate their functionalities
- ``filters.pmf`` and ``filters.outlier`` have dropped the ``classify``
and ``extract`` options. They now only classify points and leave it
downstream filters to ignore/extract classifications as needed.
- ``filters.outlier`` has changed the default classification for noise
points from ``18`` to ``7`` to match the LAS classification code for
"Low point (noise)".
Enhancements
============
- ``pdal pipeline`` now supports a ``--stream`` option which will
default to one-at-a-time or chunk-at-a-time point processing when all
stages in the pipeline support it. You can use this option to control
memory consumption -- for example when interpolating a very large
file with ``writers.gdal``
- ``filters.crop`` was enhanced to support transformed filter polygons,
streaming, and radius cropping.
- ``readers.greyhound`` updated to support greyhound.io 1.0 release,
with the most significant enhancement being support for passing
downstream JSON filters.
- ``user_data`` JSON object can be applied to any PDAL pipeline object
and it will be carried through processing. You can use this mechanism
for carrying your own information in PDAL pipelines without having to
sidecar data. #1427
- ``writers.las`` now can write ``pdal_metadata`` and ``pdal_pipeline``
VLRs for processing history tracking. #1509 #1525
- ``metadata``, ``schema``, and ``spatialreference`` objects added to
global module for ``filters.programmable`` and ``filters.predicate``
Python filters.
- ``pdalargs`` option for ``filters.programmable`` and
``filters.predicate`` allow you to pass in a JSON dictionary to your
Python module for override or modification of your script
- Stage tags can be used in pipeline override scenarios
- User-settable VLRs in ``writers.las`` #1542
- ``filters.sort`` now supports descending order and uses
``std::stable_sort`` #1530 (Thanks to new contributor @wrenoud )
- ``pdal tindex`` will now use data bounds if ``filters.hexbin`` cannot
be loaded for boundaries #1533
- ``filters.pmf`` and ``filters.smrf`` improved performance #1531 and
#1541
- ``filters.assign`` now supports
`Range <https://www.pdal.io/stages/filters.range.html>`__-based
filters
- ``filters.outlier`` now accepts a user-specified ``class`` to
override the default value of ``7`` for points deemed outliers. #1545
- ``filters.pmf`` and ``filters.smrf`` now accept a
`Range <https://www.pdal.io/stages/ranges.html#ranges>`__ via the
``ignore`` option to specify values that should be excluded from
ground segmentation. #1545
- ``filters.pmf`` and ``filters.smrf`` now consider only last returns
(when return information is available) as the default behavior. The
``last`` option can be set to ``false`` to consider all returns.
#1545
Documentation
-------------
- New `About page <https://pdal.io/about.html>`__ adapted from
`workshop <https://pdal.io/workshop/>`__
- New `LAS reading and writing <https://pdal.io/tutorial/las.html>`__
tutorial
- Consolidation of `Python <https://pdal.io/python.html>`__ information
New filters
-----------
- ``filters.cluster`` - Perform Euclidean cluster extraction, and label
each point by its cluster ID. By @chambbj.
- ``filters.groupby`` - Split incoming PointView into individual
PointViews categorically, e.g., by Classification. By @chambbj.
- ``filters.locate`` - Locate and return the point with the minimum or
maximum value for a given dimension. By @chambbj.
- ``filters.emf`` - Extended Local Maximum filter. By @chambbj.
New readers
-----------
- ``readers.mbio`` Bathymetric point cloud support for formats
supported by the
`MB-System <https://www.ldeo.columbia.edu/res/pi/MB-System/>`__
software library
Bug fixes
---------
- ``writers.pgpointcloud`` needed to treat table schema correctly
https://github.com/PDAL/PDAL/pull/1540 (thanks @elemoine)
- ``pdal density`` kernel now supports overriding ``filters.hexbin``
options #1487
- Arbiter embedded library updated to support setting Curl options
(certificate settings, etc).
- Provided a default value for ``radius`` in ``writers.gdal`` #1475
- ``writers.ply`` broken for non-standard dimensions #1556
- No EVLRs for ``writers.las`` for files < LAS 1.4 #1551
- LAS extra dims handling for standard PDAL dimension names #1555
- LASzip defines #1549
================================================================================
1.4.0
================================================================================
Changes of Note
===============
- GeoTIFF is now required to compile PDAL
- ``--scale`` and ``--offset`` kernel options are no longer supported.
Specify using stage-specific options as needed.
- The ``--validate`` option of the ``pdal pipeline`` command now
invokes the preparation portion of the pipeline to force validation
of options.
- The ``--verbose`` option to ``pdal`` now accepts log level names
("Error", "Warning", "Info", "Debug", "Debug1", "Debug2", "Debug3",
"Debug4" and "Debug5") in addition to the corresponding numeric
values (0 - 8).
Enhancements
============
New filters
-----------
- ```filters.colorinterp`` <http://pdal.io/stages/filters.colorinterp.html>`__
- Ramp RGB colors based on a specified dimension. By @hobu
- ```filters.mad`` <http://pdal.io/stages/filters.mad.html>`__ - Filter
outliers in a given dimension by computing Median Absolute Deviation
(MAD). By @chambbj
- ```filters.lof`` <http://pdal.io/stages/filters.lof.html>`__ -Filters
outliers by Local Outlier Factor (LOF). By @chambbj
- ```filters.estimaterank`` <http://pdal.io/stages/filters.estimaterank.html>`__
- Estimate rank of each neighborhood of k-nearest neighbors. By
@chambbj
- ```filters.eigenvalues`` <http://pdal.io/stages/filters.eigenvalues.html>`__
- Compute pointwise Eigenvalues. By @chambbj
- ```filters.iqr`` <http://pdal/io/stages/filters.iqr.html>`__ - Filter
outliers in a given dimension by computing Interquartile Range (IQR).
By @chambbj
- ```filters.kdistance`` <http://pdal.io/stages/filters.kdistance.html>`__
- Compute pointwise K-distance. By @chambbj
- ```filters.radialdensity`` <http://pdal.io/stages/filters.radialdensity.html>`__
- Compute pointwise radial density. By @chambbj
- ```filters.outlier`` <http://pdal.io/stages/filters.outlier.html>`__
- Radius and statistical outliers. By @chambbj
New writers
-----------
- ```writers.gdal`` <http://pdal.io/stages/writers.gdal.html>`__ -
`points2grid <http://github.com/crrel/points2grid>`__ replacement. By
@abellgithub
New kernels
-----------
- ```kernels.hausdorff`` <http://pdal.io/apps/hausdorff.html>`__ -
Compute `Hausdorff
distance <https://en.wikipedia.org/wiki/Hausdorff_distance>`__
between two point clouds. By @chambbj
Improvements
------------
- `Filename
globbing <http://man7.org/linux/man-pages/man7/glob.7.html>`__ is now
supported in the JSON pipeline specification of reader input files.
Note that tilde expansion is NOT supported.
- Source tree reorganization
https://lists.osgeo.org/pipermail/pdal/2016-December/001099.html
- CMake updates to utilize ``target_include_directory`` and
``target_link_libraries``.
- JSON output for ``pdal --showjson --drivers`` and
``pdal --showjson --options`` to support application builders being
able to fetch active lists of stages, kernels, and options.
https://github.com/PDAL/PDAL/issues/1315
- Stacktrace logging to stderr on Unix systems
https://github.com/PDAL/PDAL/pull/1329
- Geometry ingestion enhancements now support using
`GeoJSON <http://geojson.org>`__ or WKT in pipeline options
https://github.com/PDAL/PDAL/pull/1339.
- Significant Python extension refactor
https://github.com/PDAL/PDAL/pull/1367 including ability to fetch
data schema, log, and pipeline information. Common utility classes to
support the Python extension were refactored in support of the Java
extension.
- Java extension by `Azavea <https://www.azavea.com/>`__ to support
using PDAL in `Spark <http://spark.apache.org/>`__ and friends.
https://github.com/PDAL/PDAL/pull/1371
- ```kernels.density`` <http://pdal.io/stages/kernels.density.html>`__
- Density kernel now supports writing into an existing OGR datasource
https://github.com/PDAL/PDAL/pull/1396
- ```readers.greyhound`` <http://pdal.io/stages/readers.greyhound.html>`__
- Greyhound reader refactor.
- Multi-threaded read support
- Server-side filtering pass-through
- ```writers.derivative`` <http://pdal.io/stages/writers.derivative.html>`__
- Derivative writer refactor.
- ``slope_d8``
- ``slope_fd``
- ``aspect_d8``
- ``aspect_fd``
- ``contour_curvature``
- ``profile_curvature``
- ``tangential_curvature``
- ``hillshade``
- ``total_curvature``
- Output to any GDAL-writable format
https://github.com/PDAL/PDAL/issues/1146
- ```filters.crop`` <http://pdal.io/stages/filters.crop.html>`__ -
Radial cropping https://github.com/PDAL/PDAL/issues/1387
- ```filters.stats`` <http://pdal.io/stages/filters.stats.html>`__ -
Optional per-dimension median and MAD computation
- Support was added for the recently added cartesian coordinate in BPF
files.
- ```writers.p2g`` <http://pdal.io/stages/writers.p2g.html>`__ now uses
the InCoreInterp method of the points2grid code. This uses more
memory but runs faster and doesn't crash.
- The application now provides better error feedback on command-line
errors by indicating the invoked kernel when an error is detected.
- PDAL now searches by default in the following locations for plugins:
``"." "./lib", "../lib", "./bin", "../bin"``. Use
``PDAL_DRIVER_PATH`` to explicitly override the plugin search
location.
- Vector-based command-line arguments now accept default values in the
API.
- JSON parsing errors of pipeline files now provide more detailed
messages.
- Writers now add output filenames to metadata.
- Stage names provided as input to other stages in pipelines can now be
specified as strings or arrays of strings. The previous version
required single input stage names to be placed in an array.
- Added ``--smooth`` option to
```filters.hexbin`` <http://pdal.io/stages/filters.hexbin.html>`__ to
allow user control of boundary smoothing.
Bug fixes
---------
- Well-known text provided as a spatial reference isn't interpreted by
GDAL unless necessary.
- ```filters.hexbin`` <http://pdal.io/stages/filters.hexbin.html>`__
now returns ``MULTIPOLYGON EMPTY`` when it is unable to compute a
boundary.
- Reading a not a number (nan) value from a text file now works
properly.
- The ``--compression`` option for
```writers.pcd`` <http://pdal.io/stages/writers.pcd.html>`__ has been
fixed so that the writer actually compresses as requested.
- The stage manager (and hence, pipelines) now properly recognizes the
text reader as
```readers.text`` <http://pdal.io/stages/readers.text.html>`__.
- ```readers.text`` <http://pdal.io/stages/readers.text.html>`__ now
detects the case when a dimension has been specified more than once
in an input file.
- Fixed a problem where
```filters.splitter`` <http://pdal.io/stages/filters.splitter.html>`__
could create cells larger than requested about the X and Y axes.
- ```writers.nitf`` <http://pdal.io/stages/writers.nitf.html>`__ now
errors if it attempts to write an FTITLE field that exceeds the
allowable length.
- If PDAL is build with LAZperf but without LASzip, the program now
properly defaults to using LAZperf.
- Fixed a problem where
```filters.sort`` <http://pdal.io/stages/filters.sort.html>`__ could
fail to properly order points depending on the implementation of the
C++ sort algorithm.
- Fixed a problem in pgpostgres readers and writers where a failure in
a query could lead to a crash.
================================================================================
1.3.0
================================================================================
Changes of Note
================================================================================
- Command line parsing has been reworked to cause invalid options to emit
an error message. Stage options specified in pipelines and on the command
line are handled similarly.
- The dimension PlatformHeading has been renamed to Azimuth. When looking
up a dimension by name, the string "platformheading" is still accepted and
returns Azimuth.
- Errors detected by GDAL are no longer thrown as exceptions. A log message
is emitted instead.
- Well-known dimensions are now added to PDAL by editing a JSON file,
Dimension.json.
- Linking with PDAL using CMake no longer requires explicit linking with
curl, jsoncpp or arbiter libraries.
- PDAL now searches for plugins in the following locations and order by
default: ./lib, ../lib, ../bin, the location where PDAL was installed.
- The '--debug' and '--verbose' options are no longer supported as stage
options. The '--verbose' option is accepted on the PDAL command line. The
'--debug' option is deprecated, and if specified on the command line is
equivalent to '--verbose=3'. One can enable logging programmatically by
calling setLog() on a PipelineManager or a specific stage.
- pdal::Dimension types are now C++11 enumeration classes. The change may
require editing any Stage implementations you might have and removing the
extraneous ::Enum type specification.
Enhancements
================================================================================
- Pipelines can now be read directly from standard input.
- Files can now be read from Amazon S3 buckets by providing an appropriate
URL.
- Many new filters have been added: filters.approximatecoplanar,
filters.eigenvalues, filters.estimaterank, filters.hag, filters.normal,
filters.outlier, filters.pmf, filters.sample. Most of these are algorithm
extractions from the PCL library, with the hope of eliminating the need
for PCL in some future PDAL release.
- The PLY reader now loads dimensions that aren't predefined PDAL dimensions.
- A '--driver' option has been added to allow a specific driver to be loaded
for a file without regard to its extension.
- The PDAL_DRIVER_PATH environment variable now accepts a list of locations
to search for drivers.
- Beta release quality drivers improvements in readers.greyhound
- Beta quality implementation of Mongus and Zalik ground filter
- Experimental implementation of Pingel et al. ground filter
- writers.pcd enhancements by Logan Byers (binary, compression) -- requires
PCL
- Docker images upgraded to Ubuntu Xenial
- Cyclone PTS reader -- readers.pts
- skewness, kurtosis, stddev, and variance added to filters.stats output
- Python API now available https://pypi.python.org/pypi/pdal
Fixes
================================================================================
- A failure that may have resulted when using filters.hexbin to calculate
density in the southern hemisphere has been corrected.
- A failure to create the index file with 'pdal tindex' and GDAL 2.X has
been fixed.
- The '--tindex' option for the 'pdal tindex' command is now a positional
option as specified in the documentation.
- The icebridge reader now reads the X dimension as longitude and forces
the value in the range (-180, 180]. It also properly uses the dimension
Azimuth instead of ScanAngleRank.
- An error in writers.pgpointcloud where it ignored SQL to be run at the end
of the stage has been fixed.
- An error that might incorrectly write values stored internally as bytes
when written as a different data type has been fixed.
- A problem where 'pdal info' wouldn't properly report dimension names not
predefined by PDAL has been fixed.
- A bug in filters.crop that wouldn't properly transform coordinates when
provided the '--a_srs' option has been fixed.
================================================================================
1.2.0
================================================================================
Changes of Note
================================================================================
- The GEOS library is now required to build PDAL. In earlier versions it was
an optional component.
- Boost is no longer a required component. Unless you are building plugins
that require boost (notably PCL and Geowave), you no longer will need
boost installed on your system to build or run PDAL.
- PDAL now builds on Microsoft Visual Studio 2015.
- The PipelineReader class has been removed and its functionality has been
merged into PipelineManager.
- Plugin libraries now support Linux versioning.
- Naming changes have been made to allow packaging with the Debian release.
- filters.height now uses the dimension 'HeightAboveGround' instead of a
dimension named 'Height' to be compatible with the filters.heightaboveground.
- Option names no longer contain lowercase characters.
- PDAL now works with GDAL version 1.9 and later.
- Stages created with the StageFactory are now owned by the factory.
- filters.dartthrowing has been renamed filters.dartsample
- 'pipeline-serialization' now produces JSON output instead of XML.
Enhancements
================================================================================
- Pipelines may now be specified using a JSON syntax. XML syntax is still
supported but users should switch to JSON when possible as the XML support
will be removed in a future version.
- PDAL now can be built into a Docker container.
- Many stages now support "streaming," which allows control of the number
of points stored in memory during processing. See
Stage::execute(StreamPointTable&) for more information.
- A basic text reader has been added.
- Added support for the dimension 'ClassFlags' in readers.las.
- The derivative writer can now produce output for multiple primitive types
with a single execution.
- 'pdal info' now provides bounding box output instead of a more refined
boundary when the hexbin plugin isn't found.
- Added 'pdal density' to provide a command-line interface to the
filters.hexbin density calcuations.
- The icebridge reader can now load an associated metadata file. The reader
also now marks the associated coordinate system as WGS84.
- The stats filter now emits bounding box information in native and WGS84
projections.
- PDAL command-line programs now (generally) check their argument lists for
correctness and report syntax errors.
- 'pdal info' now provides spatial reference attributes in addition to
the actual well-known text.
- Geometry can now be specified as GeoJSON as well as well-known-text in
most contexts. Geometry optionally provides Z-dimension output.
- Stage and plugin creation is now thread-safe (NOTE: Most of PDAL is
NOT thread-safe, so tread carefully).
- Many, many documentation enhancements.
Fixes
================================================================================
- A bug in generating PCIDs when with multiple simultaneous PDAL executions
to the same Postgres database has been fixed.
- Fixed a bug in generated SQL delete statements when certain table names
were used in the writers.postgres driver.
- Properly escape quotes when generating JSON output.
- Fix an off-by-one error when writing data with the derivative writer that
could lead to a crash.
- Fixed a dependency error during builds that could lead to a failure to
properly load Python extensions on Linux.
- Fixed a bug where passing certain options to 'pdal info' could be handled
in ambiguous ways.
- Fixed bugs in the reading of raster data using readers.gdal.
- Fixed population of the AIMIDB and ACFTB attributes in writers.nitf.
- Corrected the parsing of some dimension names in filters.colorization.
- Fixed a potential truncation in the GlobalEncoding dimension of readers.las.
================================================================================
1.1.0
================================================================================
Enhancements
================================================================================
- Add support for the LAZperf LAS compressor in decoding/encoding LAS files.
LAZperf can be enabled with the 'compression' option in readers.las and
writers.las.
- Add PCL functionality as filters (filters.greedyprojection,
filters.gridprojection, filters.ground filters.movingleastsquares,
filters.poisson, filters.radiusoutlier, filters.statisticaloutlier,
filters.voxelgrid, filters.height, filters.dartsample)
- Add readers.gdal to support reading raster sets as point clouds
- Update writers.geowave and readers.geowave to work with the latest version
of GeoWave software.
- Add readers.ilvis2 to support the Icebridge ILVIS2 format.
- Disallow nested options. Check stage documentation for changes in option
names and handling. (filters.ferry, filters.colorization, filters.attribute,
filters.crop). Change filters.attribute to handle only a single dimension.
- Add 'output_dims' options in writers.bpf to allow control of the dimensions
that should be written.
- Add 'all' keyword in 'extra_dims' options of writers.las to cause all
dimensions to be written to either the standard or extra dimensions of
a LAS point.
- Add filters.randomize to allow randomized order of points.
- Add filters.divider to split a set of points into subsets of a fixed number
or into subsets containing a specific number of points.
- Update to version 1.1.4 of rply in readers.rply.
- Change the logic of the range filter to allow multiple ranges for a single
dimension and support a simple boolean logic.
- Change the default scaling on writer.bpf to 'auto'.
- Add support for smoothing boundaries generated by filters.hexbin.
- Add readers.tindex to allow vector-filtered input of point cloud files.
- Allow merging of datasets with non-matching spatial references.
- Many, many documentation enhancements.
Fixes
================================================================================
- Handle error with Pgpointcloud when pointcloud extension is not installed
on postgres server. Skip tests if extention is missing.
- Set precision on output of doubles to metadata.
- Fix a divide-by-zero error in readers.faux when the point count was 1.
(https://github.com/PDAL/PDAL/issues/1015)
- Fix fatal error loading numpy library that occurred when running
filters.predicate or filters.programmable.
(https://github.com/PDAL/PDAL/issues/1010)
- Correct readers.las to properly check WKT bit when choosing spatial
reference VLR.
(https://github.com/PDAL/PDAL/issues/1040)
- Correct writer.las to emit only WKT or GeoTiff VLR, not both.
(https://github.com/PDAL/PDAL/issues/1040)
- Check object ID against table column id (attrelid) to ensure correct PCID
retrieval in readers.pgpointcloud.
(https://github.com/PDAL/PDAL/pull/1051)