Convert LAS (Conversion)—ArcGIS Pro | Documentation

The .las, .zlas, or .laz files that will be converted. Multiple files can be processed by specifying the folder containing the files or a LAS dataset.

The existing folder where the output files will be written.

Specifies the file version that will be used for the output files.

• Same As Input—The output file version will be the same as the input. This is the default.
• 1.0—The base version for the LAS format that supported 256 class codes will be used.
• 1.1—The output file version will be 1.1. Class codes were reduced to 32, but support for classification flags was added.
• 1.2—The output file version will be 1.2. Support for red-green-blue (RGB) color channels and GPS time was added.
• 1.3—The output file version will be 1.3. Storage of lidar waveform data for point record formats that are not supported in the ArcGIS platform was added.
• 1.4— The output file version will be 1.4. Support for coordinate system definition using Well Known Text (WKT) convention, 256 class codes, up to 15 discrete returns per pulse, higher precision scan angle, and overlap classification flag was added.

Specifies the point record format that will be used for the output files. The available options will vary based on the output LAS format file version.

• 0—The base type for storing discrete LAS points that supports attributes such as lidar intensity, return values, scan angle, scan direction, and edge of flight line will be used.
• 1—GPS time is added to the attributes supported in point format 0, which will be used.
• 2—RGB values are added to the attributes supported in point format 0, which will be used.
• 3—RGB values and GPS time are added to the attributes supported in point format 0, which will be used.
• 6—The preferred base type for storing discrete LAS points in LAS file version 1.4 will be used.
• 7—RGB values are added to the attributes supported in point format 6, which will be used.
• 8—RGB and near-infrared values are added to the attributes supported in point format 6, which will be used.

Specifies whether the output files will be stored in a compressed or uncompressed format.

• No Compression—Output files will be in the uncompressed LAS format (*.las). This format supports edits to classification codes and flags. This is the default.
• zLAS Compression—Output files will be compressed in the zLAS format (*.zlas). This format supports edits to classification codes and flags.
• LAZ Compression—Output files will be compressed in the LAZ format (*.laz).
• Edited zLAS to Non-Edited zLAS—Edited .zlas files will be converted to unedited .zlas files. Creating unedited *.zlas files preserves the classification edits while allowing the files to be usable in ArcGIS Pro 3.1 and earlier. When this option is used on a LAS dataset referencing any combination of .las files, edited .zlas files, and unedited .zlas files, only the edited .zlas files will be processed.

Specifies the modifications that will be made to the output files that will reduce their size and improve their performance in display and analysis.

• Rearrange Points—Points will be rearranged to improve display and analysis performance. Statistics will be automatically computed during this process. This is the default.
• Remove Variable Length Records—Variable-length records that are added after the header as well as the points records of each file will be removed.
• Remove Extra Bytes—Extra bytes that may be present with each point from the input file will be removed.

The output LAS dataset referencing the newly created .las files.

Specifies how the coordinate system of each input file will be defined.

• No LAS Files—The coordinate system of each input file will be defined by the information in its header. Any file that lacks spatial reference information will be treated as having an unknown coordinate system. This is the default.
• All LAS Files—The coordinate system of each input file will be defined by the Input Coordinate System parameter.
• LAS Files with No Spatial Reference—The coordinate system of any input file that does not have spatial reference information in its header will be defined by the Input Coordinate System parameter.

The coordinate system that will be used to define the spatial reference of some or all input files based on the Define Input Coordinate System parameter value.