pylas.header module¶

LasHeader¶

class pylas.header.LasHeader(*, version: Union[pylas.header.Version, str, None] = None, point_format: Union[pylas.point.format.PointFormat, int, None] = None)[source]¶

Bases: object

Contains the information from the header of as LAS file with ‘implementation’ field left out and ‘users’ field stored in more ergonomic classes.

This header also contains the VLRs

Examples

Creating a default header:

>>> header = LasHeader()
>>> header
<LasHeader(1.2, <PointFormat(3, 0 bytes of extra dims)>)>

Creating a header with the wanted version and point format:

>>> header = LasHeader(version=Version(1, 4), point_format=PointFormat(6))
>>> header
<LasHeader(1.4, <PointFormat(6, 0 bytes of extra dims)>)>

>>> header = LasHeader(version="1.4", point_format=6)
>>> header
<LasHeader(1.4, <PointFormat(6, 0 bytes of extra dims)>)>

DEFAULT_VERSION = Version(major=1, minor=2)¶: The default version used when None is given to init

DEFAULT_POINT_FORMAT = <PointFormat(3, 0 bytes of extra dims)>¶: The default point format Used when None is given to init

file_source_id = None¶: File source id

uuid = None¶: Project ID Initialized to null UUID

system_identifier = None¶: System identifier Initialized to ‘OTHER’

generating_software = None¶: The software which generated the file Initialized to ‘pylas’

creation_date = None¶: Day the file was created, initialized to date.today()

point_count = None¶: The number of points in the file

scales = None¶: The numbers used to scale the x,y,z coordinates

offsets = None¶: The numbers used to offset the x,y,z coordinates

number_of_points_by_return = None¶: Number of points by return for las <= 1.2 only the first 5 elements matters

vlrs = None¶: The VLRS

extra_header_bytes = None¶: Extra bytes between end of header and first vlrs

extra_vlr_bytes = None¶: Extra bytes between end of vlr end first point

start_of_waveform_data_packet_record = None¶: Las >= 1.3

start_of_first_evlr = None¶: Las >= 1.4 Offset to the first evlr in the file

number_of_evlrs = None¶: The number of evlrs in the file

point_format¶: The point format

version¶: The version

x_scale¶

y_scale¶

z_scale¶

x_offset¶

y_offset¶

z_offset¶

x_max¶

y_max¶

z_max¶

x_min¶

y_min¶

z_min¶

add_extra_dims(params: List[pylas.point.format.ExtraBytesParams]) → None[source]¶

add_extra_dim(params: pylas.point.format.ExtraBytesParams)[source]¶

set_version_and_point_format(version: pylas.header.Version, point_format: pylas.point.format.PointFormat) → None[source]¶