Point Cloud Conversion ====================== |332| .. only:: html .. contents:: :local: :depth: 1 .. note:: These algorithms are only available if QGIS uses the PDAL library version 2.5.0 or newer. .. _pdalconvertformat: Convert format -------------- Converts a point cloud to a different file format, e.g. creates a compressed :file:`.LAZ`. Parameters .......... .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Input layer** - ``INPUT`` - [point cloud] - Input point cloud layer to convert * - **Converted** - ``OUTPUT`` - [point cloud] Default: ``[Save to temporary file]`` - Specify the point cloud file to use as output. One of: .. include:: ../algs_include.rst :start-after: **file_output_types** :end-before: **end_file_output_types** Outputs ....... .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Converted** - ``OUTPUT`` - [point cloud] - Output point cloud layer in a modified file format. Currently supported formats are :file:`.LAS`, :file:`.LAZ`, :file:`.COPC.LAZ` and :file:`.VPC`. Python code ........... **Algorithm ID**: ``pdal:convertformat`` .. include:: ../algs_include.rst :start-after: **algorithm_code_section** :end-before: **end_algorithm_code_section** .. _pdalexportraster: Export to raster ---------------- Exports point cloud data to a 2D raster grid having cell size of given resolution, writing values from the specified attribute. .. figure:: img/point_cloud_exportraster.png :align: center Raster output using Intensity attribute of points Parameters .......... Basic parameters ^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Input layer** - ``INPUT`` - [point cloud] - Input point cloud layer to export * - **Attribute** - ``ATTRIBUTE`` - [field] [enumeration] - A Field of the point cloud layer to extract the values from * - **Resolution of the density raster** - ``RESOLUTION`` - [number] Default: 1.0 - Cell size of the output raster * - **Tile size for parallel runs** - ``TILE_SIZE`` - [number] Default: 1000 - * - **Exported** - ``OUTPUT`` - [raster] Default: ``[Save to temporary file]`` - Specify the raster file to export the data to. One of: .. include:: ../algs_include.rst :start-after: **file_output_types** :end-before: **end_file_output_types** Advanced parameters ^^^^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Filter expression** Optional - ``FILTER_EXPRESSION`` - [expression] - A :ref:`PDAL expression ` for selecting a subset of features in the point cloud data * - **Cropping extent** Optional - ``FILTER_EXTENT`` - [extent] - A map extent for selecting a subset of features in the point cloud data .. include:: ../algs_include.rst :start-after: **extent_options** :end-before: **end_extent_options** * - **X origin of a tile for parallel runs** Optional - ``ORIGIN_X`` - [number] - * - **Y origin of a tile for parallel runs** Optional - ``ORIGIN_Y`` - [number] - Outputs ....... .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Exported** - ``OUTPUT`` - [raster] - Output raster layer features of the point cloud layer are exported to. Currently supported format is :file:`.TIF`. Python code ........... **Algorithm ID**: ``pdal:exportraster`` .. include:: ../algs_include.rst :start-after: **algorithm_code_section** :end-before: **end_algorithm_code_section** .. _pdalexportrastertin: Export raster (using triangulation) ----------------------------------- Exports point cloud data to a 2D raster grid using a triangulation of points and then interpolating cell values from triangles. .. note:: Using this algorithm can be slower if you are dealing with a large dataset. If your point cloud is dense, you can export your ground points as a raster using the :ref:`pdalexportraster` algorithm. .. figure:: img/point_cloud_exportrastertin.png :align: center Terrain raster output generated by point cloud triangulation Parameters .......... Basic parameters ^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Input layer** - ``INPUT`` - [point cloud] - Input point cloud layer to export * - **Resolution of the density raster** - ``RESOLUTION`` - [number] Default: 1.0 - Cell size of the output raster * - **Tile size for parallel runs** - ``TILE_SIZE`` - [number] Default: 1000 - * - **Exported** - ``OUTPUT`` - [raster] Default: ``[Save to temporary file]`` - Specify the raster file to export the data to. One of: .. include:: ../algs_include.rst :start-after: **file_output_types** :end-before: **end_file_output_types** Advanced parameters ^^^^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Filter expression** Optional - ``FILTER_EXPRESSION`` - [expression] - A :ref:`PDAL expression ` for selecting a subset of features in the point cloud data * - **Cropping extent** Optional - ``FILTER_EXTENT`` - [extent] - A map extent for selecting a subset of features in the point cloud data .. include:: ../algs_include.rst :start-after: **extent_options** :end-before: **end_extent_options** * - **X origin of a tile for parallel runs** Optional - ``ORIGIN_X`` - [number] - * - **Y origin of a tile for parallel runs** Optional - ``ORIGIN_Y`` - [number] - Outputs ....... .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Exported (using triangulation)** - ``OUTPUT`` - [raster] - Output raster layer features of the point cloud layer are exported to. Currently supported format is :file:`.TIF`. Python code ........... **Algorithm ID**: ``pdal:exportrastertin`` .. include:: ../algs_include.rst :start-after: **algorithm_code_section** :end-before: **end_algorithm_code_section** .. _pdalexportvector: Export to vector ---------------- Exports point cloud data to a vector layer with 3D points (a GeoPackage), optionally with extra attributes. .. figure:: img/point_cloud_exportvector.png :align: center Exporting point cloud (ground points) to a vector layer styled based on the elevation Parameters .......... Basic parameters ^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Input layer** - ``INPUT`` - [point cloud] - Input point cloud layer to export * - **Attribute** Optional - ``ATTRIBUTE`` - [field] [list] - One or more fields of the point cloud layer to export with the points. * - **Exported** - ``OUTPUT`` - [vector] Default: ``[Save to temporary file]`` - Specify the vector file to export the data to. One of: .. include:: ../algs_include.rst :start-after: **file_output_types** :end-before: **end_file_output_types** Advanced parameters ^^^^^^^^^^^^^^^^^^^ .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Filter expression** Optional - ``FILTER_EXPRESSION`` - [expression] - A :ref:`PDAL expression ` for selecting a subset of features in the point cloud data * - **Cropping extent** Optional - ``FILTER_EXTENT`` - [extent] - A map extent for selecting a subset of features in the point cloud data .. include:: ../algs_include.rst :start-after: **extent_options** :end-before: **end_extent_options** Outputs ....... .. list-table:: :header-rows: 1 :widths: 20 20 20 40 * - Label - Name - Type - Description * - **Exported** - ``OUTPUT`` - [vector] - Output vector layer features of the point cloud layer are exported to. Currently supported format is :file:`.GPKG`. Python code ........... **Algorithm ID**: ``pdal:exportvector`` .. include:: ../algs_include.rst :start-after: **algorithm_code_section** :end-before: **end_algorithm_code_section** .. Substitutions definitions - AVOID EDITING PAST THIS LINE This will be automatically updated by the find_set_subst.py script. If you need to create a new substitution manually, please add it also to the substitutions.txt file in the source folder. .. |332| replace:: ``NEW in 3.32``