# » RIEGL Point Attributes

Following table shows point attributes of point clouds acquired by RIEGL instruments.
Please note, that not all point attributes are available for all instrument types or software applications.

Group "Coordinates/Vectors"
# | Name | Title | Unit | Length | Resolution | Minimum | Maximum | Default | Invalid | Origin | Storage | Compression | Tags | Values | Description
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
1 | riegl.xyz | XYZ | m | 3 | 0.00025 | -535000.0 | 535000.0 | 0.0 |  | scanner | variable | shuffle | position, transform |  | Cartesian point coordinates wrt. application coordinate system (0: X, 1: Y, 2: Z)
2 | riegl.xyz_socs | XYZ SOCS | m | 3 | 0.00025 | -535000.0 | 535000.0 | 0.0 |  | scanner | variable | delta | position |  | Cartesian point coordinates wrt. scanner's coordinate system (0: X, 1: Y, 2: Z)
3 | riegl.xyz_lvcs | XYZ LVCS | m | 3 | 0.1 | -10000.0 | 10000.0 | 0.0 |  | software | variable | shuffle | position |  | Cartesian point coordinates wrt. levelled vehicle coordinate system (0: X, 1: Y, 2: Z)
4 | riegl.xyz_map | XYZ Map | m | 3 | 0.00025 | -20037508.343 | 20037508.343 | 0.0 |  | software | variable | shuffle | position, transform |  | Point coordinates wrt. a projected CRS (e.g. Web Mercator EPSG:3857, 0: Easting, 1: Northing, 2: Height)
5 | riegl.xyz_map_min | XYZ Map Minimum | m | 3 | 0.00025 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Minimum distances to the voxel corner (0: dx, 1: dy, 2: dz)
6 | riegl.xyz_map_max | XYZ Map Maximum | m | 3 | 0.00025 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Maximum distances to the voxel corner (0: dx, 1: dy, 2: dz)
7 | riegl.xy_map | XY Map | m | 2 | 0.00933069192934280443318950659659094526432454586029052734375 | -20037508.3427892439067363739013671875 | 20037508.333458550274372100830078125 | 0.0 |  | software | variable | shuffle | position, transform |  | Point coordinates wrt. a projected CRS (e.g. Web Mercator EPSG:3857, 0: Easting, 1: Northing)
8 | riegl.xyz_corrections | XYZ Corrections | m | 3 | 0.00025 | -5000.0 | 5000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Corrections that were applied (added) to the Cartesian point coordinates (0: X, 1: Y, 2: Z)
9 | riegl.range | Range | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | scanner | variable | shuffle |  |  | Target distance wrt. SOCS origin
10 | riegl.theta | Theta | deg | 1 | 1.0e-6 | 0.0 | 180.0 | 0.0 |  | scanner | variable | default |  |  | Polar angle (inclination) wrt. SOCS (0..180°)
11 | riegl.phi | Phi | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | scanner | variable | default |  |  | Azimuthal angle wrt. SOCS (0..360°)
12 | riegl.scanner_position | Scanner Position | m | 3 | 0.00025 | -535000.0 | 535000.0 | 0.0 |  | software | variable | shuffle | position, transform |  | Cartesian coordinates of the scanner position wrt. application coordinate system (0: X, 1: Y, 2: Z)
13 | riegl.direction | Direction |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | scanner | variable | default | direction, transform |  | Laser beam direction vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
14 | riegl.direction_medium | Direction |  | 3 | 0.0007 | -1.0 | 1.0 | 0.0 |  | scanner | variable | delta | direction, transform |  | Laser beam direction vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
15 | riegl.direction_coarse | Direction |  | 3 | 0.015 | -1.0 | 1.0 | 0.0 |  | scanner | variable | default | direction, transform |  | Coarse laser beam direction vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
16 | riegl.shot_origin | Laser Shot Origin | m | 3 | 250.0e-6 | -8.0 | 8.0 | 0.0 |  | scanner | constant | shuffle | position |  | Laser beam origin wrt. SOCS (0: X, 1: Y, 2: Z)
17 | riegl.shot_biaxial_shift | Laser Shot Biaxial Shift | m | 3 | 250.0e-6 | -1.0 | 1.0 | 0.0 |  | scanner | constant | shuffle | direction |  | Laser beam biaxial shift vector wrt. SOCS (0: X, 1: Y, 2: Z)
18 | riegl.shot_direction | Laser Shot Direction |  | 3 | 250.0e-9 | -1.0 | 1.0 | 0.0 |  | scanner | constant | shuffle | direction |  | Laser beam direction vector wrt. SOCS (0: X, 1: Y, 2: Z)
19 | riegl.shot_direction_levelled | Laser Shot Direction Levelled |  | 3 | 250.0e-9 | -1.0 | 1.0 | 0.0 |  | scanner | variable | shuffle | direction, transform |  | Laser beam direction vector wrt. ROCS (0: X, 1: Y, 2: Z)
20 | riegl.surface_normal | Surface Normal |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Target surface normal vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
21 | riegl.point_vector | Point Vector |  | 3 | 0.0005 | -1.0 | 1.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Vector derived from PCA on neighborhood: normal vector for planar and volumetric neighborhoods, direction vector for linear neighborhoods
22 | riegl.plane_up | Plane Patch Up Vector |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Direction vector of shorter edge of plane patch wrt. application coordinate system (0: X, 1: Y, 2: Z)
23 | riegl.plane_cog_link | Plane COG Link Vector | m | 3 | 0.00025 | -5000.0 | 5000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Vector connecting the center point of a plane patch with its center of gravity (0: X, 1: Y, 2: Z)
24 | riegl.plane_patch_link_vector | Plane Patch Link Vector | m | 3 | 0.00025 | -5000.0 | 5000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Vector interconnecting the centers (riegl.xyz) of two matched plane patches (0: X, 1: Y, 2: Z)
25 | riegl.pca_axis_min | PCA Axis Minimum |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | The eigenvector that belongs to the smallest eigenvalue (result of PCA, 0: X, 1: Y, 2: Z)
26 | riegl.pca_axis_max | PCA Axis Maximum |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | The eigenvector that belongs to the greatest eigenvalue (result of PCA, 0: X, 1: Y, 2: Z)
27 | riegl.model_cs_axis_x | Model CS X-Axis |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Direction of x-axis of model coordinate system wrt. application coordinate system (0: X, 1: Y, 2: Z)
28 | riegl.model_cs_axis_y | Model CS Y-Axis |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Direction of y-axis of model coordinate system wrt. application coordinate system (0: X, 1: Y, 2: Z)
29 | riegl.model_cs_axis_z | Model CS Z-Axis |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Direction of z-axis of model coordinate system wrt. application coordinate system (0: X, 1: Y, 2: Z)
30 | riegl.cylinder_axis_direction | Cylinder Axis Direction |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Normalized cylinder axis direction vector
31 | riegl.accelerometer | Accelerometer Values | m/s² | 3 | 5.0e-6 | -300.0 | 300.0 | -300.0 | -300.0 | scanner | variable | delta | direction |  | Processed values of an accelerometer
32 | riegl.accelerometer_raw | Accelerometer Raw Values |  | 3 | 1.0 | -32768.0 | 32767.0 | -32768.0 | -32768.0 | scanner | variable | delta | direction |  | Raw measurement values of an accelerometer (unit see metadata riegl.pose_sensors)
33 | riegl.accelerometer_bias | Accelerometer Bias | m/s² | 3 | 1e-05 | -1.0 | 1.0 | 0.0 | -1.0 | software | variable | delta |  |  | Estimated bias of accelerometer
34 | riegl.accelerometer_scale | Accelerometer Scale | 1 | 3 | 1e-06 | -0.1 | 0.1 | 0.0 | -0.1 | software | variable | delta |  |  | Estimated deviation of scale of accelerometer from 1
35 | riegl.gyroscope | Gyroscope Values | deg/s | 3 | 1.0e-7 | -2000.0 | 2000.0 | -2000.0 | -2000.0 | scanner | variable | delta | direction |  | Processed values of a gyroscope
36 | riegl.gyroscope_raw | Gyroscope Raw Values |  | 3 | 1.0 | -32768.0 | 32767.0 | -32768.0 | -32768.0 | scanner | variable | delta | direction |  | Raw measurement values of a gyroscope (unit see metadata riegl.pose_sensors)
37 | riegl.gyroscope_bias | Gyroscope Bias | deg/s | 3 | 1e-06 | -10.0 | 10.0 | 0.0 | -10.0 | software | variable | delta |  |  | Estimated bias of gyroscope
38 | riegl.gyroscope_scale | Gyroscope Scale | 1 | 3 | 1e-06 | -0.1 | 0.1 | 0.0 | -0.1 | software | variable | delta |  |  | Estimated deviation of scale of gyroscope from 1
39 | riegl.magnetic_field_sensor | Magnetic Field Sensor Values | µT | 3 | 0.01 | -1000.0 | 1000.0 | -1000.0 | -1000.0 | scanner | variable | delta | direction |  | Processed values of a magnetic field sensor
40 | riegl.magnetic_field_sensor_raw | Magnetic Field Sensor Raw Values |  | 3 | 1.0 | -32768.0 | 32767.0 | -32768.0 | -32768.0 | scanner | variable | delta | direction |  | Raw measurement values of a magnetic field sensor (unit see metadata riegl.pose_sensors)
41 | riegl.pof_latitude | Latitude | deg | 1 | 1.0e-9 | -90.0 | 90.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Geodetic (Geographic) Latitude
42 | riegl.pof_longitude | Longitude | deg | 1 | 1.0e-9 | -180.0 | 180.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Geodetic (Geographic) Longitude
43 | riegl.pof_height | Ellipsoidal Height | m | 1 | 250.0e-6 | -10000.0 | 40000.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Height (vertical distance) wrt. to the ellipsoid of the defined geodetic datum
44 | riegl.pof_undulation | Geoid Undulation | m | 1 | 0.001 | -300.0 | 300.0 | 0.0 |  | software | variable | shuffle |  |  | Height of the geoid relative to the ellipsoid
45 | riegl.pof_roll | Roll Angle | deg | 1 | 1.0e-6 | -180.0 | 180.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about the body axis pointing in forward direction (x-axis for NED systems)
46 | riegl.pof_pitch | Pitch Angle | deg | 1 | 1.0e-6 | -180.0 | 180.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about the body axis pointing in transverse direction (y-axis for NED systems)
47 | riegl.pof_yaw | Yaw Angle | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about the body axis pointing in vertical direction (z-axis for NED systems)
48 | riegl.pof_course | Course Angle | deg | 1 | 0.01 | -1.0 | 360.0 | 0.0 | -1.0 | software | variable | delta+shuffle |  |  | 2D angle of the course over ground (0 deg: north, 90 deg: east)
49 | riegl.pof_xyz | XYZ | m | 3 | 0.00025 | -535000.0 | 535000.0 | 0.0 |  | scanner | variable | shuffle | position, transform |  | Position of the platform in the coordinate system defined by the geo_tag (0: X, 1: Y, 2: Z)
50 | riegl.pof_roll_ned | Roll Angle NED | deg | 1 | 1.0e-6 | -180.0 | 180.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about y-axis of the coordinate system defined by the geo_tag
51 | riegl.pof_pitch_ned | Pitch Angle NED | deg | 1 | 1.0e-6 | -180.0 | 180.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about x-axis of the coordinate system defined by the geo_tag
52 | riegl.pof_yaw_ned | Yaw Angle NED | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | software | variable | delta+shuffle |  |  | Rotation about inverted z-axis of the coordinate system defined by the geo_tag
53 | riegl.pof_xyz_velocity | XYZ Velocity | m/s | 3 | 0.01 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Time-smoothed velocity vector of the platform in the body coordinate system (0: X, 1: Y, 2: Z)
54 | riegl.pof_xyz_ned_velocity | XYZ NED Velocity | m/s | 3 | 0.01 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle | direction |  | Time-smoothed velocity vector of the platform in the local NED system (0: N, 1: E, 2: D)
55 | riegl.pof_xyz_lvcs_velocity | XYZ LVCS Velocity | m/s | 3 | 0.01 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle | direction |  | Time-smoothed velocity vector of the platform wrt. levelled vehicle coordinate system (0: X, 1: Y, 2: Z)
56 | riegl.pof_roll_velocity | Roll Angle Velocity | deg/s | 1 | 0.05 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Rotation velocity about x-axis of the body coordinate system
57 | riegl.pof_pitch_velocity | Pitch Angle Velocity | deg/s | 1 | 0.05 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Rotation velocity about y-axis of the body coordinate system
58 | riegl.pof_yaw_velocity | Yaw Angle Velocity | deg/s | 1 | 0.05 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Rotation velocity about z-axis of the body coordinate system
59 | riegl.pof_velocity_ned | Velocity NED | m/s | 3 | 0.001 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle | direction |  | Velocity vector in the local NED system (0: N, 1: E, 2: D)
60 | riegl.pof_velocity_accuracy_north | Velocity Accuracy North | m/s | 1 | 0.001 | 0.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in North direction (standard deviation)
61 | riegl.pof_velocity_accuracy_east | Velocity Accuracy East | m/s | 1 | 0.001 | 0.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in East direction (standard deviation)
62 | riegl.pof_velocity_accuracy_down | Velocity Accuracy Down | m/s | 1 | 0.001 | 0.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in Down direction (standard deviation)
63 | riegl.pof_velocity_accuracy_north_east | Velocity Accuracy North/East | m/s | 1 | 0.001 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in North/East direction (signed square root of covariance)
64 | riegl.pof_velocity_accuracy_east_down | Velocity Accuracy East/Down | m/s | 1 | 0.001 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in East/Down direction (signed square root of covariance)
65 | riegl.pof_velocity_accuracy_down_north | Velocity Accuracy Down/North | m/s | 1 | 0.001 | -200.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Velocity in Down/North direction (signed square root of covariance)
66 | riegl.hydro_intersection_point | Water Surface Intersection Point | m | 3 | 0.00025 | -535000.0 | 535000.0 | 0.0 |  | software | variable | shuffle | position, transform |  | Water surface intersection point coordinates wrt. application coordinate system (0: X, 1: Y, 2: Z)
67 | riegl.hydro_intersection_normal | Water Surface Intersection Normal |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | default | direction, transform |  | Water surface intersection normal vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
68 | riegl.hydro_wsm_uncertainty | Water Surface Model Uncertainty | m | 3 | 0.0001 | -3.2768 | 3.2767 | 0.0 |  | software | variable | default | direction, transform |  | Water surface model uncertainty (0: X, 1: Y, 2: Z)
69 | riegl.xyz_accuracies | XYZ Accuracies | m | 3 | 0.00025 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Accuracy of Cartesian coordinates (0: X, 1: Y, 2: Z)
70 | riegl.zenith_vector | Zenith Vector |  | 3 | 3.125e-05 | -1.0 | 1.0 | 0.0 |  | software | variable | shuffle | direction, transform |  | Direction of zenith vector wrt. application coordinate system (0: X, 1: Y, 2: Z)
Group "Time"
# | Name | Title | Unit | Length | Resolution | Minimum | Maximum | Default | Invalid | Origin | Storage | Compression | Tags | Values | Description
71 | riegl.shot_timestamp_hr | Laser Shot Timestamp | 4ps | 1 | 1.0 | 0.0 | 9.0e18 | 0.0 |  | scanner | constant | delta | timestamp |  | Laser shot timestamp (in units of 4 pico seconds = 4e-12 s)
72 | riegl.timestamp | Timestamp | s | 1 | 1.0e-7 | 0.0 | 9.0e8 | 0.0 |  | scanner | variable | shuffle | timestamp |  | Laser shot timestamp (100 nano seconds resolution)
73 | riegl.wfm_sbl_time_offset | Waveform Sample Block Time Offset | 4ps | 1 | 1.0 | -2.0e9 | 2.0e9 | 0.0 |  | software | constant | shuffle |  |  | Start of waveform sample block relative to laser shot timestamp (in units of 4 pico seconds = 4e-12 s)
74 | riegl.wfm_echo_time_offset | Echo Time Offset | 4ps | 1 | 1.0 | -2.0e9 | 2.0e9 | 0.0 |  | software | constant | shuffle |  |  | Position of echo relative to start of waveform sample block (in units of 4 pico seconds = 4e-12 s)
75 | riegl.pps_timestamp_extern | External Timestamp | s | 1 | 1.0e-7 | 0.0 | 9.0e8 | 0.0 |  | scanner | variable | delta | timestamp |  | External timestamp (100 nano seconds resolution)
76 | riegl.pps_timestamp_intern | Internal Timestamp | 4ps | 1 | 1.0 | 0.0 | 9.0e18 | 0.0 |  | scanner | variable | delta |  |  | Internal timestamp (in units of 4 pico seconds = 4e-12 s)
77 | riegl.event_timestamp | Event Timestamp | s | 1 | 1e-07 | 0.0 | 900000000.0 | 0.0 |  | software | variable | delta | timestamp |  | Timestamp of event (seconds since epoch defined in riegl.time_base)
78 | riegl.timestamp_min | Timestamp Minimum | s | 1 | 1.0e-7 | 0.0 | 9.0e8 | 0.0 |  | software | variable | shuffle | timestamp |  | Minimum laser shot timestamp within voxel (100 nano seconds resolution)
79 | riegl.timestamp_max | Timestamp Maximum | s | 1 | 1.0e-7 | 0.0 | 9.0e8 | 0.0 |  | software | variable | shuffle | timestamp |  | Maximum laser shot timestamp within voxel (100 nano seconds resolution)
80 | riegl.pof_timestamp | Timestamp | s | 1 | 1.0e-7 | 0.0 | 9.0e8 | 0.0 |  | software | variable | delta+shuffle | timestamp |  | Timestamp (100 nano seconds resolution)
81 | riegl.acquisition_date | Acquisition Date |  | 3 | 1.0 | 0.0 | 4095.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Date of acquisition (0: year, 1: month [1-12], 2: day [1-31], not specified if any is 0)
Group "Primary Attributes"
# | Name | Title | Unit | Length | Resolution | Minimum | Maximum | Default | Invalid | Origin | Storage | Compression | Tags | Values | Description
82 | riegl.reflectance | Reflectance | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 | -327.68 | scanner | variable | shuffle |  |  | Target surface reflectance
83 | riegl.amplitude | Amplitude | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 | -327.68 | scanner | constant | shuffle |  |  | Echo signal amplitude
84 | riegl.intensity | Intensity |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | scanner | constant | shuffle |  |  | Uncalibrated echo signal amplitude (for legacy RIEGL LMS instruments)
85 | riegl.gain | Gain | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 |  | scanner | constant | shuffle |  |  | Gain of photodiode
86 | riegl.deviation | Deviation |  | 1 | 1.0 | -1.0 | 32767.0 | 0.0 | -1.0 | scanner | constant | shuffle |  |  | Pulse shape deviation (negative means unavailable)
87 | riegl.pulse_width | Pulse Width | ns | 1 | 0.1 | 0.0 | 6553.5 | 0.0 | 0.0 | scanner | constant | shuffle |  |  | Pulse width (full width at half maximum, for Q-Series instruments, 0 = invalid)
88 | riegl.class | Point Class |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | variable | shuffle | enumeration | 0 = Created, never classified | Point class number
89 | riegl.rgba | True Color |  | 4 | 1.0 | 0.0 | 255.0 | 0.0 |  | software | variable | default | color |  | Point color derived from digital camera, 0: Red, 1: Green, 2: Blue, 3: Alpha (0 = no color); additional colors (if any) are stored in riegl.rgba_2, riegl.rgba_3, ...
90 | riegl.nir | Near Infrared Brightness |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | variable | default |  |  | Point near infrared (NIR) value derived from NIR camera
91 | riegl.temperature | Temperature | °C | 1 | 0.001 | -273.15 | 4.0e6 | 4.0e6 | 4.0e6 | software | variable | shuffle |  |  | Target temperature measured by thermal camera
92 | riegl.dmi_count | DMI Counter Value | 1 | 1 | 1.0 | -100000000000.0 | 100000000000.0 | 0.0 |  | software | variable | default |  |  | DMI counter value (unwrapped)
93 | riegl.dmi_path_length_raw | DMI Path Length | m | 1 | 0.001 | -10000000.0 | 10000000.0 | 0.0 |  | software | variable | default |  |  | DMI path length (uncalibrated)
94 | riegl.dmi_scale | DMI Scale | 1 | 1 | 1e-05 | -1.0 | 1.0 | 0.0 | -1.0 | software | variable | delta |  |  | Estimated deviation of scale of DMI from 1 with respect to the riegl.dmi_path_length_raw attribute in the dmix file
95 | riegl.mta_zone | MTA Zone Assigned |  | 1 | 1.0 | 1.0 | 255.0 | 1.0 |  | software | variable | default | enumeration |  | Index of assigned MTA zone. Nearest MTA zone has index 1
96 | riegl.mta_uncertain_point | MTA Uncertain Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | 1 for points with uncertain MTA zone assignment, 0 for certainly assigned MTA zone
97 | riegl.fwa | Full Waveform Analysis |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean | 0 = Origin OWP 1 = Origin FWA | 1 for all points originating from a full waveform analysis (FWA), 0 for all points originating from online waveform processing (OWP)
98 | riegl.background_radiation | Background Radiation |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | scanner | variable | shuffle |  |  | Background Radiation (for VZ-400-HT/HAT only)
99 | riegl.background_radiation_si | Background Radiation Si-PD |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 | 65535.0 | scanner | variable | shuffle |  |  | Background Radiation (for VZ-400-HTo only, Si-PD)
100 | riegl.background_radiation_ingaas | Background Radiation InGaAs-PD |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 | 65535.0 | scanner | variable | shuffle |  |  | Background Radiation (for VZ-400-HTo only, InGaAs-PD)
101 | riegl.temperature_estimated_si | Temperature Estimated Si-PD | °C | 1 | 1.0 | -1.0 | 2000.0 | 0.0 | -1.0 | software | variable | shuffle |  |  | Estimated temperature derived from Background Radiation Si-PD
102 | riegl.temperature_estimated_ingaas | Temperature Estimated InGaAs-PD | °C | 1 | 1.0 | -1.0 | 2000.0 | 0.0 | -1.0 | software | variable | shuffle |  |  | Estimated temperature derived from Background Radiation InGaAs-PD
103 | riegl.temperature_estimated_ingaas_si | Temperature Estimated InGaAs/Si-PD | °C | 1 | 1.0 | -1.0 | 2000.0 | 0.0 | -1.0 | software | variable | shuffle |  |  | Estimated temperature derived from difference in Background Radiation InGaAs and Si
104 | riegl.target_index | Target Index |  | 1 | 1.0 | 0.0 | 255.0 | 1.0 | 0.0 | scanner | variable | default |  |  | nth target of a laser-shot (0 = unknown, 1 = first target, ...)
105 | riegl.target_count | Target Count |  | 1 | 1.0 | 0.0 | 255.0 | 1.0 | 0.0 | scanner | variable | default |  |  | Number of targets of a laser-shot (0 = unknown, 1 = one target, ...)
106 | riegl.target_type | Target Type |  | 1 | 1.0 | 0.0 | 4.0 | 0.0 | 0.0 | scanner | variable | default | enumeration | 1 = Single target 2 = First target 3 = Intermediate target 4 = Last target | Target rank among all targets of a laser-shot (0 = unknown, 1 = single, 2 = first, 3 = intermediate, 4 = last target)
107 | riegl.echo_first | Echo First |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | delta |  |  | Identifier of first echo that belongs to the laser shot (0 = invalid). This is not an array index but the value of riegl.id of the echo.
108 | riegl.echo_count | Echo Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | constant | shuffle |  |  | Number of echoes that belong to the laser shot
109 | riegl.height_center | Height Center | m | 1 | 0.00025 | -100000.0 | 100000.0 | 0.0 |  | software | variable | shuffle |  |  | Height at center of grid cell
110 | riegl.height_mean | Height Mean | m | 1 | 0.00025 | -100000.0 | 100000.0 | 0.0 |  | software | variable | shuffle |  |  | Mean height within grid cell
111 | riegl.height_min | Height Minimum | m | 1 | 0.00025 | -100000.0 | 100000.0 | 0.0 |  | software | variable | shuffle |  |  | Minimum height within grid cell
112 | riegl.height_max | Height Maximum | m | 1 | 0.00025 | -100000.0 | 100000.0 | 0.0 |  | software | variable | shuffle |  |  | Maximum height within grid cell
113 | riegl.point_count | Point Count |  | 1 | 1.0 | 0.0 | 4294967295.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Number of points this point represents (e.g. points combined to voxels or plane patches, 0 = unknown)
114 | riegl.point_count_grid_cell | Point Count of Grid Cell |  | 1 | 1.0 | 0.0 | 4294967295.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Number of total points in a grid cell this point represents.
115 | riegl.pca_extents | PCA Extents | m | 3 | 0.00025 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Volume extents along 0: riegl.pca_axis_max, 1: riegl.pca_axis_min x riegl.pca_axis_max, 2: riegl.pca_axis_min
116 | riegl.mta_uncertain_point_vol | MTA Uncertain Point Volume | dBm³ | 1 | 0.01 | -120.0 | 120.0 | 0.0 | -120.0 | software | variable | default |  |  | Representative volume of the neighborhood, calculated as product of the components of riegl.pca_extents
117 | riegl.mta_uncertain_point_vol_diff | Difference in MTA Uncertain Point Volume | dB | 1 | 0.01 | 0.0 | 240.0 | 240.0 | 0.0 | software | variable | shuffle |  |  | Difference in representative volume of the neighborhood to next smallest volume of point from the same echo but different MTA-zone
118 | riegl.pca_thickness | PCA Thickness | m | 1 | 0.00025 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Volume extents along riegl.pca_axis_min or riegl.surface_normal (result of PCA)
119 | riegl.pca_diameter | PCA Diameter of Neighborhood | m | 1 | 0.001 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Representative diameter of the neighborhood, calculated as sqrt(12*sum_of_eigenvalues/number_of_points)
120 | riegl.eigenvalue_norm_min | PCA Minimum Eigen Value Normalized |  | 1 | 1.52591e-05 | 0.0 | 1.0 | 0.0 |  | software | variable | shuffle |  |  | The smallest eigenvalue from PCA normalized by the sum of all eigenvalues
121 | riegl.eigenvalue_norm_max | PCA Maximum Eigen Value Normalized |  | 1 | 1.52591e-05 | 0.0 | 1.0 | 0.0 |  | software | variable | shuffle |  |  | The largest eigenvalue from PCA normalized by the sum of all eigenvalues
122 | riegl.std_dev | Standard Deviation | m | 1 | 0.0001 | 0.0 | 65.535 | 0.0 | 0.0 | software | variable | shuffle |  |  | Standard deviation, e.g. of residual point-to-plane distances (0 = unknown)
123 | riegl.plane_confidence_normal | Confidence Normal Direction | deg | 3 | 0.006 | -180.006 | 180.0 | 0.0 | -180.006 | software | variable | shuffle |  |  | Confidence ellipse for the normal vector of a plane patch (0: up-axis, 1: width-axis, tilt angle wrt. up-axis)
124 | riegl.plane_slope_class | Plane Patch Slope Class |  | 1 | 1.0 | 0.0 | 255.0 | 0.0 | 0.0 | software | variable | default | enumeration |  | Plane patch slope class number. Meaning see metadata riegl.plane_slope_class_info (0 = invalid)
125 | riegl.plane_occupancy | Plane Patch Occupancy |  | 8 | 1.0 | 0.0 | 255.0 | 0.0 |  | software | variable | default |  |  | 8x8 occupancy matrix indicating point support of plane patch
126 | riegl.plane_width | Plane Patch Width | m | 1 | 0.001 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Size of plane patch along the longer edge (0 = unknown)
127 | riegl.plane_height | Plane Patch Height | m | 1 | 0.001 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Size of plane patch along the shorter edge (0 = unknown)
128 | riegl.plane_count | Plane Patch Count |  | 1 | 1.0 | 0.0 | 65535.0 | 1.0 |  | software | variable | shuffle |  |  | For merged plane patches, the number of plane patches the merged plane patch is based on
129 | riegl.match_count | Plane Patch Match Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | variable | shuffle |  |  | The number of source plane patch files the plane patch has matches to
130 | riegl.plane_patch_distance | Plane Patch Distance | m | 1 | 0.00025 | -2100.0 | 2000.0 | -2100.0 | -2100.0 | software | variable | shuffle |  |  | Distance between the origins of two plane patches, projected onto the average of their normal vectors
131 | riegl.plane_patch_lateral_distance | Plane Patch Lateral Distance | m | 1 | 0.00025 | -2100.0 | 2000.0 | -2100.0 | -2100.0 | software | variable | shuffle |  |  | Distance between the origins of two plane patches, projected onto the plane defined by the average of their normal vectors
132 | riegl.plane_patch_angular_distance | Plane Patch Angular Distance | deg | 1 | 1.0e-6 | -1.0 | 180.0 | -1.0 | -1.0 | software | variable | shuffle |  |  | Angle between the normal vectors of two plane patches
133 | riegl.cylinder_radius | Cylinder Radius | m | 1 | 0.00025 | 0.0 | 100.0 | 0.0 | 0.0 | software | variable | default |  |  | Radius of cylinder
134 | riegl.cylinder_height | Cylinder Height | m | 1 | 0.00025 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | default |  |  | Height of cylinder (cylinder origin is at half height)
135 | riegl.cylinder_origin_confidence | Cylinder Origin Confidence | m | 1 | 0.0001 | 0.0 | 10.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of estimated cylinder origin (perpendicular to axis)
136 | riegl.cylinder_radius_confidence | Cylinder Radius Confidence | m | 1 | 0.0001 | 0.0 | 10.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of estimated cylinder radius
137 | riegl.cylinder_direction_confidence | Cylinder Direction Confidence | deg | 1 | 0.003 | 0.0 | 180.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of estimated cylinder axis direction
138 | riegl.cylinder_inlier_count | Cylinder Inlier Count |  | 1 | 1 | 0.0 | 16000000 | 0.0 | 0.0 | software | variable | default |  |  | Number of points used for cylinder fitting
139 | riegl.cylinder_outlier_count | Cylinder Outlier Count |  | 1 | 1 | 0.0 | 16000000 | 0.0 | 0.0 | software | variable | default |  |  | Number of points not used for cylinder fitting
140 | riegl.pof_accuracy_north | Accuracy North | m | 1 | 1.0e-6 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in North direction (standard deviation)
141 | riegl.pof_accuracy_east | Accuracy East | m | 1 | 1.0e-6 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in East direction (standard deviation)
142 | riegl.pof_accuracy_down | Accuracy Down | m | 1 | 1.0e-6 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in Down direction (standard deviation)
143 | riegl.pof_accuracy_north_east | Accuracy North/East | m | 1 | 1.0e-6 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in North/East direction (signed square root of covariance)
144 | riegl.pof_accuracy_east_down | Accuracy East/Down | m | 1 | 1.0e-6 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in East/Down direction (signed square root of covariance)
145 | riegl.pof_accuracy_down_north | Accuracy Down/North | m | 1 | 1.0e-6 | -1000.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy in Down/North direction (signed square root of covariance)
146 | riegl.pof_accuracy_roll | Accuracy Roll | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Roll rotation
147 | riegl.pof_accuracy_pitch | Accuracy Pitch | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Pitch rotation
148 | riegl.pof_accuracy_yaw | Accuracy Yaw | deg | 1 | 1.0e-6 | 0.0 | 360.0 | 0.0 |  | software | variable | shuffle |  |  | Accuracy of Yaw rotation
149 | riegl.wfm_sbl_channel | Waveform Sample Block Channel |  | 1 | 1.0 | 0.0 | 255.0 | 255.0 | 255.0 | software | constant | default | enumeration | 0 = High power 1 = Low power 3 = Reference pulse | Waveform sample block channel number (255 = invalid)
150 | riegl.wfm_sbl_mean | Waveform Sample Value Mean |  | 1 | 0.0625 | 0.0 | 4095.0 | 0.0 |  | software | constant | shuffle |  |  | Waveform sample value mean
151 | riegl.wfm_sbl_std_dev | Waveform Sample Value Standard Deviation |  | 1 | 0.25 | 0.0 | 255.0 | 0.0 |  | software | constant | shuffle |  |  | Waveform sample value standard deviation
152 | riegl.wfm_sbl_first | Waveform Sample Block First |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | delta |  |  | Identifier of first waveform sample block that belongs to the laser shot (0 = invalid). This is not an array index but the value of riegl.id of the block.
153 | riegl.wfm_sbl_count | Waveform Sample Block Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | constant | shuffle |  |  | Number of waveform sample blocks that belong to the laser shot
154 | riegl.wfm_sda_first | Waveform Sample Data First |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | delta |  |  | Identifier of first waveform sample value that belongs to the sample block (0 = invalid). This is not an array index but the value of riegl.id of the sample.
155 | riegl.wfm_sda_count | Waveform Sample Data Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | constant | shuffle |  |  | Number of waveform sample values that belong to the sample block
156 | riegl.wfm_sample_value | Waveform Sample Value |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | scanner | constant | shuffle |  |  | Raw waveform sample value
157 | riegl.control_object_type | Control Object Type |  | 1 | 1.0 | -1.0 | 32767.0 | -1.0 | -1.0 | software | variable | default | enumeration |  | Zero-based index of control object type listed in riegl.control_object_catalog (meta data entry)
158 | riegl.model_fit_quality | Model Fit Quality |  | 1 | 0.001 | 0.0 | 1.0 | 0.0 |  | software | variable | default |  |  | Model fit quality value between 0 and 1 (0 = unspecified)
159 | riegl.cp_surface_inclination_angle | Surface Inclination Angle | deg | 1 | 0.01 | 0.0 | 180.0 | 0.0 |  | software | variable | default |  |  | Observed inclination angle of the surface in the vicinity of a control point. It is defined as the arccosine of the vertical component of the surface normal vector. Hence: angle = 0 deg: horizontal (floor); angle = 90 deg: vertical (wall); angle = 180 deg: horizontal (ceiling)
160 | riegl.cp_surface_inclination_tolerance_angle | Surface Inclination Tolerance Angle | deg | 1 | 0.01 | 0.0 | 180.0 | 180.0 |  | software | variable | default |  |  | Tolerance angle for the inclination of the surface in the vicinity of a control point
161 | riegl.cp_surface_northing_angle | Surface Northing Angle | deg | 1 | 0.01 | 0.0 | 360.0 | 0.0 |  | software | variable | default |  |  | Observed northing angle (azimuth) of the surface in the vicinity of a control point. It is defined as the angle of the horizontal component of the surface normal vector wrt. north direction (measured clockwise). Hence: 0 deg: North; 90 deg: East; 180 deg: South; 270 deg: West
162 | riegl.cp_surface_northing_tolerance_angle | Surface Northing Tolerance Angle | deg | 1 | 0.01 | 0.0 | 180.0 | 180.0 |  | software | variable | default |  |  | Tolerance angle for the northing angle of the surface in the vicinity of a control point
163 | riegl.obs_confidence_xyz | XYZ Confidences of Observed Point | m | 3 | 1e-06 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence values of observed XYZ point coordinates wrt. local observation coordinate system
164 | riegl.obs_confidence_xy | XY Confidence of Observed Point | m | 1 | 1e-06 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence value for xy position of observed point wrt. local observation coordinate system
165 | riegl.obs_confidence_z | Z Confidence of Observed Point | m | 1 | 1e-06 | 0.0 | 1000.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence value for z position of observed point wrt. local observation coordinate system
166 | riegl.obs_confidence_range | Positional Confidence of Observation in Radial Direction | m | 1 | 1e-06 | 0.0 | 1.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of observation coordinates in local radial direction (range)
167 | riegl.obs_confidence_theta | Positional Confidence of Observation in Theta Direction | deg | 1 | 1e-06 | 0.0 | 1.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of observation coordinates in local elevation direction (theta)
168 | riegl.obs_confidence_phi | Positional Confidence of Observation in Phi Direction | deg | 1 | 1e-06 | 0.0 | 1.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence of observation coordinates in local azimuth direction (phi)
169 | riegl.obs_signal_confidence_rot | Rotation Angle Confidence of Observed Signal | deg | 1 | 1e-06 | 0.0 | 360.0 | 0.0 | 0.0 | software | variable | default |  |  | Confidence value for rotation angle within plane of observed signal
170 | riegl.used_for_adjustment | Used for Adjustment |  | 1 | 1.0 | 0.0 | 1.0 | 1.0 |  | software | variable | default | enumeration | 0 = Used as verification point 1 = Used for adjustment | Flag indicating if observation shall be used for adjustment (0 = used as verification point; 1 = used for adjustment)
171 | riegl.reference_object_id | Reference Object ID |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | variable | shuffle |  |  | ID (riegl.id) of a referenced object (0 = invalid)
172 | riegl.event_index | Event Index |  | 1 | 1.0 | 0.0 | 4294967295.0 | 0.0 |  | software | variable | delta |  |  | Number of events in specific channel, separate counters for input and output
173 | riegl.event_pulse_width | Event Pulse Width | ms | 1 | 0.1 | 0.0 | 6553.5 | 0.0 | 0.0 | software | variable | default |  |  | Width of input pulse (0 = output pulse)
Group "Secondary Attributes"
# | Name | Title | Unit | Length | Resolution | Minimum | Maximum | Default | Invalid | Origin | Storage | Compression | Tags | Values | Description
174 | riegl.raw_range | Raw Range | m | 1 | 0.00025 | -50000.0 | 50000.0 | 0.0 |  | scanner | variable | shuffle |  |  | Raw range of echo
175 | riegl.raw_line_angle | Raw Line Angle | deg | 1 | 1e-6 | 0.0 | 360.0 | 0.0 |  | scanner | variable | delta |  |  | Raw line angle
176 | riegl.raw_frame_angle | Raw Frame Angle | deg | 1 | 1e-6 | 0.0 | 360.0 | 0.0 |  | scanner | variable | delta |  |  | Raw frame angle
177 | riegl.line_angle_coarse | Line Angle Coarse | deg | 1 | 0.025 | 0.0 | 360.0 | 0.0 |  | scanner | variable | delta |  |  | Coarse line scan angle
178 | riegl.line_angle_reduced | Line Angle Reduced | deg | 1 | 0.025 | -360.0 | 360.0 | 0.0 |  | scanner | variable | delta |  |  | Reduced line scan angle
179 | riegl.frame_angle_coarse | Frame Angle Coarse | deg | 1 | 0.001 | 0.0 | 360.0 | 0.0 |  | scanner | variable | delta |  |  | Coarse frame scan angle
180 | riegl.angle_of_incidence | Angle of Incidence | deg | 1 | 0.01 | 0.0 | 90.0 | 0.0 |  | software | variable | default |  |  | Angle of incidence of the laser beam with respect to a planar neighborhood, normal incidence gives 0 deg
181 | riegl.scan_line_index | Scan Line Index |  | 1 | 1.0 | -2000000000.0 | 2000000000.0 | 0.0 |  | software | variable | delta |  |  | Scan Line Index in Scan
182 | riegl.shot_index_line | Laser Shot Index in Line |  | 1 | 1.0 | -2000000000.0 | 2000000000.0 | 0.0 |  | software | variable | delta |  |  | Laser Shot Index in Scan Line
183 | riegl.mirror_facet | Mirror Facet |  | 1 | 1.0 | 0.0 | 15.0 | 0.0 | 0.0 | scanner | variable | default | enumeration |  | Mirror facet number (0 = invalid, 1 = first facet, ...)
184 | riegl.scan_segment | Scan Segment |  | 1 | 1.0 | 0.0 | 15.0 | 0.0 | 0.0 | scanner | constant | default | enumeration |  | Scan segment number (0 = invalid, 1 = first segment, ...)
185 | riegl.waveform_available | Waveform Available |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | scanner | constant | default | boolean | 0 = No waveform available 1 = Waveform available | Waveform data available for laser-shot (0 = no, 1 = yes)
186 | riegl.hydro_refraction_corrected | Refraction Corrected |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean | 0 = No refraction correction applied 1 = Refraction correction applied | 1 if the point was refraction corrected, 0 otherwise
187 | riegl.extinction | Extinction Coefficient | dB/m | 1 | 0.001 | -30.0 | 30.0 | 0.0 |  | software | variable | default |  |  | Extinction coefficient, i.e. exponential damping coefficient usually present in water bodies. N.B.: The factor is subject to refraction correction.
188 | riegl.svb_amplitude_volumetric | SVB Volumetric Backscatter Amplitude | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 |  | software | constant | shuffle |  |  | Amplitude from volumetric backscatter in SVB FWA
189 | riegl.svb_reflectance_volumetric | SVB Volumetric Backscatter Reflectance | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 |  | software | variable | shuffle |  |  | Reflectance from volumetric backscatter in SVB FWA
190 | riegl.svb_reflectance_bottom_uncorrected | SVB Bottom Reflectance Uncorrected | dB | 1 | 0.01 | -327.68 | 327.67 | 0.0 |  | software | variable | shuffle |  |  | Reflectance in SVB FWA of bottom return without correcting for the attenuation of the water column
191 | riegl.svb_attenuation_volumetric | SVB Attenuation of Bottom Return | dB | 1 | 0.01 | 0.0 | 100.0 | 0.0 |  | software | variable | default |  |  | Attenuation of the reflectance of bottom target due to backscatter and absorption in the water column in SVB FWA
192 | riegl.svb_target_attenuation_coefficient_volumetric | SVB Target Attenuation Coefficient | dB/m | 1 | 0.01 | 0.0 | 100.0 | 0.0 |  | software | variable | default |  |  | Bottom target amplitude is attenuated by svb_target_attenuation_coefficient_volumetric for every additional meter of target depth in the water column.
193 | riegl.svb_surface | SVB Surface Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | Indicates surface point from SVB FWA (1 = surface)
194 | riegl.svb_bottom | SVB Bottom Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | Indicates bottom point from SVB FWA (1 = bottom)
195 | riegl.svb_path_length | SVB Path Length | m | 1 | 0.004 | 0.0 | 200.0 | 0.0 |  | software | variable | shuffle |  |  | Path length between surface and bottom from SVB FWA
196 | riegl.start_of_scan_line | Start of Scan Line |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | scanner | variable | default | boolean |  | 1 for all points of the first laser shot of a scan line, 0 otherwise
197 | riegl.end_of_scan_line | End of Scan Line |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | scanner | variable | default | boolean |  | 1 for all points of the last laser shot of a scan line, 0 otherwise
198 | riegl.scan_angle | Scan Angle | deg | 1 | 0.096 | -180.0 | 180.0 | 0.0 |  | software | variable | delta |  |  | see LAS format specification 1.4-R13
199 | riegl.scan_direction | Scan Direction |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | scanner | variable | default | enumeration | 0 = Negative 1 = Positive | see LAS format specification 1.4-R13
200 | riegl.voxel_collapsed | Voxel Collapsed with Neighbor |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | Voxel has been collapsed with neighbor (0 = not collapsed, 1 = collapsed)
201 | riegl.line_scan_active | Line Scan Active |  | 1 | 1.0 | -1.0 | 1.0 | -1.0 | -1.0 | scanner | variable | delta |  |  | 1 if the mirror wheel rotates, 0 otherwise
202 | riegl.frame_scan_active | Frame Scan Active |  | 1 | 1.0 | -1.0 | 1.0 | -1.0 | -1.0 | scanner | variable | delta |  |  | 1 if the scanner head rotates, 0 otherwise
203 | riegl.data_acquisition_active | Data Acquisition Active |  | 1 | 1.0 | -1.0 | 1.0 | -1.0 | -1.0 | scanner | variable | delta |  |  | 1 if the data acquisition is in progress, 0 otherwise
204 | riegl.plane_references | Plane Patch References |  | 2 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | variable | shuffle |  |  | IDs (riegl.id) of plane patches this observation refers to (0 = invalid)
205 | riegl.pof_path_length | Path Length | m | 1 | 1.0e-3 | 0.0 | 4.0e6 | 0.0 |  | software | variable | delta+shuffle |  |  | Cumulative distance travelled
206 | riegl.pof_pdop | PDOP |  | 1 | 0.01 | 0.0 | 100.0 | 0.0 |  | software | variable | shuffle |  |  | Position (3D) dilution of precision
207 | riegl.pof_hdop | HDOP |  | 1 | 0.01 | 0.0 | 100.0 | 0.0 |  | software | variable | shuffle |  |  | Horizontal dilution of precision
208 | riegl.pof_vdop | VDOP |  | 1 | 0.01 | 0.0 | 100.0 | 0.0 |  | software | variable | shuffle |  |  | Vertical dilution of precision
209 | riegl.pof_age_of_corrections | Age Of Corrections | s | 1 | 0.1 | -1.0 | 1000.0 | -1.0 | -1.0 | software | variable | default |  |  | Age of GNSS RTK corrections (-1 = unknown)
210 | riegl.pof_baseline_length | Baseline Length | m | 1 | 0.1 | 0.0 | 1000000.0 | 0.0 |  | software | variable | default |  |  | Length of GNSS RTK baseline, i.e. the distance between the antennas of the base station and the rover
211 | riegl.pof_solution_gnss | GNSS Solution |  | 1 | 1.0 | 0.0 | 8.0 | 0.0 | 0.0 | software | variable | default | enumeration | 0 = GNSS fix invalid 1 = GNSS fix single 2 = GNSS fix DGPS 3 = GNSS fix time only 4 = GNSS fix RTK fixed 5 = GNSS fix RTK float 6 = GNSS fix estimated 7 = GNSS fix manual 8 = GNSS fix simulated | Solution type of GNSS
212 | riegl.pof_satellites_gnss | Number of GNSS Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Total number of GNSS satellites that were used to calculate the position
213 | riegl.pof_satellites_gps | Number of GPS Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Number of GPS satellites that were used to calculate the position
214 | riegl.pof_satellites_glonass | Number of GLONASS Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Number of GLONASS satellites that were used to calculate the position
215 | riegl.pof_satellites_beidou | Number of Beidou Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Number of Beidou satellites that were used to calculate the position
216 | riegl.pof_satellites_galileo | Number of Galileo Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Number of Galileo satellites that were used to calculate the position
217 | riegl.pof_satellites_qzss | Number of QZSS Satellites |  | 1 | 1.0 | 0.0 | 1000.0 | 0.0 |  | software | variable | shuffle |  |  | Number of Quasi-Zenith Satellite System (QZSS) satellites that were used to calculate the position
218 | riegl.pixel_linear_sums | Linear Sums | m | 3 | 1e-3 | 0.0 | 64000000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Sums of the linear point distances to the pixel corner (0: dx, 1: dy, 2: dz)
219 | riegl.pixel_square_sums | Square Sums | m² | 6 | 1e-6 | 0.0 | 5120000000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Sums of the square point distances to the pixel corner (0: dx*dx, 1: dy*dy, 2: dz*dz, 3: dx*dy, 4: dy*dz, 5: dx*dz)
220 | riegl.shape_id | Point Cloud Shape |  | 1 | 1.0 | 0.0 | 3.0 | 0.0 | 0.0 | software | variable | default | enumeration | 0 = Undefined 1 = Plane 2 = Line 3 = Volume | Estimated shape of point cloud (0 = undefined, 1 = plane, 2 = line, 3 = volume)
221 | riegl.plane_cluster_id | Plane Cluster ID |  | 1 | 1.0 | 0.0 | 4000000000.0 | 0.0 | 0.0 | software | variable | default |  |  | The plane cluster ID this point belongs to (0 = no cluster)
222 | riegl.segment_id | Segment ID |  | 1 | 1.0 | 0.0 | 4000000000.0 | 0.0 | 0.0 | software | variable | default |  |  | The segment ID this point belongs to (0 = no segment)
223 | riegl.voxel_linear_sums | Linear Sums | m | 3 | 2.5e-4 | 0.0 | 16000000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Sums of the linear point distances to the voxel corner (0: dx, 1: dy, 2: dz)
224 | riegl.voxel_square_sums | Square Sums | m² | 6 | 6.25e-8 | 0.0 | 320000000.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Sums of the square point distances to the voxel corner (0: dx*dx, 1: dy*dy, 2: dz*dz, 3: dx*dy, 4: dy*dz, 5: dx*dz)
225 | riegl.voxel_index | Voxel Index |  | 3 | 1.0 | 0.0 | 4294967295.0 | 0.0 |  | software | constant | shuffle |  |  | Integer coordinates of voxel corner
226 | riegl.covariances | Point Cloud Covariances |  | 6 | 1.0e-6 | -4.5e9 | 4.5e9 | 0.0 |  | software | variable | shuffle |  |  | Elements 00, 11, 22, 10, 21 and 20 (in that order) of point cloud covariance matrix
227 | riegl.voxel_count | Voxel Count |  | 1 | 1.0 | 0.0 | 4294967295.0 | 0.0 | 0.0 | software | variable | shuffle |  |  | Number of voxels this point represents (e.g. voxels combined to pixels, 0 = unknown)
228 | riegl.id | PID |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | rdb | constant | shuffle |  |  | Point identifier, unique within database (0 = invalid)
229 | riegl.vertex_first | Vertex First |  | 1 | 1.0 | 0.0 | 4294967295.0 | 0.0 | 0.0 | software | variable | default |  |  | Identifier of first vertex that belongs to a geometry object (e.g. polyline) (0 = invalid)
230 | riegl.vertex_count | Vertex Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | variable | default |  |  | Number of vertices that belong to a geometry object (e.g. polyline)
231 | riegl.cp_search_radius | Search Radius | m | 1 | 0.01 | 0.0 | 655.35 | 0.0 | 0.0 | software | variable | default |  |  | Search radius for finding the control point in the scan data. This value (if valid) shall be preferred over that of the common settings when finding observation points for the respective control point.
232 | riegl.cp_maximum_distance | Maximum Distance | m | 1 | 0.1 | 0.0 | 50000.0 | 0.0 | 0.0 | software | variable | default |  |  | Maximum accepted distance of an observed control point from SOCS center. This value (if valid) shall be preferred over that of the common settings when finding observation points for the respective control point.
Group "Other Attributes"
# | Name | Title | Unit | Length | Resolution | Minimum | Maximum | Default | Invalid | Origin | Storage | Compression | Tags | Values | Description
233 | riegl.selected | Selected |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | dynamic | default | boolean |  | Point selected by user (0 = not selected, 1 = selected)
234 | riegl.visible | Visible |  | 1 | 1.0 | 0.0 | 1.0 | 1.0 |  | software | dynamic | default | boolean |  | Point visible (i.e. not hidden) in view (0 = hidden, 1 = visible)
235 | riegl.source_cloud_id | Point Cloud ID |  | 1 | 1.0 | 0.0 | 10000.0 | 0.0 | 0.0 | software | constant | shuffle |  |  | ID of original point cloud (0 = unknown)
236 | riegl.source_cloud_count | Point Cloud Count |  | 1 | 1.0 | 0.0 | 65535.0 | 0.0 |  | software | variable | shuffle |  |  | For points merged from multiple source files, the number of source files contributing to the point (0 = unknown)
237 | riegl.source_index | Point Index |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | shuffle |  |  | Index of point in original point cloud (0 = unknown)
238 | riegl.source_indicator | Source Indicator |  | 1 | 1.0 | 0.0 | 255.0 | 0.0 |  | software | variable | default | enumeration | 0 = Standard processing 1 = Target interpolation | 0 for all points derived by standard waveform processing, 1 for additional points derived from interpolation, other enum values to be defined separately
239 | riegl.dynamic_object_point | Dynamic Object Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | Marks points that belong to dynamic objects (0 = no dynamic object, 1 = dynamic object)
240 | riegl.single_source_point | Single Source Point |  | 1 | 1.0 | 0.0 | 1.0 | 1.0 |  | software | variable | default | boolean |  | Marks points that originate from one source file (0 = multiple source files, 1 = single source file)
241 | riegl.mirror_object_point | Mirror Object Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | Marks points that belong to mirror objects (0 = no mirror object, 1 = mirror object)
242 | riegl.window_echo_impact_corrected | Window Echo Impact Corrected |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean | 0 = Not impacted by exit aperture 1 = Impacted by exit aperture | 1 for all points in temporal vicinity of echoes from the exit aperture and corrected for the impact of the exit pane on amplitude and range, 0 otherwise
243 | riegl.dyntrig_uncertain_point | Dyntrig Uncertain Point |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | 1 for all points with an echo signal amplitude below the dynamic trigger level, 0 otherwise
244 | riegl.barometric_height_amsl | Barometric Altitude | m | 1 | 0.01 | -100.0 | 10000.0 | 0.0 |  | scanner | variable | delta |  |  | Altitude determined based on the atmospheric pressure according to the standard atmosphere laws
245 | riegl.distance_to_surface | Distance to Surface | m | 1 | 0.0001 | -2100.0 | 2000.0 | -2100.0 | -2100.0 | software | variable | shuffle |  |  | Distance between point and a reference surface (values less than -2000.0 mean no distance available)
246 | riegl.nbhd_distance_min | Neighborhood Minimum Distance | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | Minimum distance to points in neighborhood
247 | riegl.nbhd_distance_max | Neighborhood Maximum Distance | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | Maximum distance to points in neighborhood
248 | riegl.nbhd_distance_mean | Neighborhood Mean Distance | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | Mean distance to points in neighborhood
249 | riegl.nbhd_distance_median | Neighborhood Median Distance | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | Median distance to points in neighborhood
250 | riegl.nbhd_distance_std | Neighborhood Distance, Standard Deviation | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | Standard deviation of distances to points in neighborhood
251 | riegl.nbhd_distance_mad | Neighborhood Distance, Median Absolute Deviation | m | 1 | 0.00025 | 0.0 | 50000.0 | 0.0 |  | software | variable | shuffle |  |  | MAD standard deviation of distances to points in neighborhood
252 | riegl.shot_id | Shot ID |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | delta |  |  | Identifier of laser shot (0 = invalid). This is not an array index but the value of riegl.id of the laser shot.
253 | riegl.wfm_sbl_id | Waveform Sample Block ID |  | 1 | 1.0 | 0.0 | 1.0e12 | 0.0 | 0.0 | software | constant | delta |  |  | Identifier of waveform sample block (0 = invalid). This is not an array index but the value of riegl.id of the block.
254 | riegl.event_fake_pulse | Event Fake Pulse |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean | 0 = real input event 1 = fake input event | Event fake pulse (0 = real input event, 1 = fake input event to indicate that no event was detected within set time window)
255 | riegl.point_inside_aabb_bocs | Inside Inner AABB in BOCS |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | 1 if point is inside inner box, 0 if outside
256 | riegl.point_outside_aabb_bocs | Outside Outer AABB in BOCS |  | 1 | 1.0 | 0.0 | 1.0 | 0.0 |  | software | variable | default | boolean |  | 1 if point is outside outer box, 0 if inside
257 | riegl.tpu_wsm_z_uncertainty | Water Surface Model Z Uncertainty | m | 1 | 0.001 | -1.0 | 64.535 | -1.0 | -1.0 | software | variable | default |  |  | Water surface model z uncertainty at intersection point
258 | riegl.tpu_wsm_normal_uncertainty | Water Surface Model Normal Uncertainty | deg | 1 | 0.001 | -1.0 | 64.535 | -1.0 | -1.0 | software | variable | default |  |  | Water surface model normal uncertainty at intersection point
259 | riegl.tpu_xyz_uncertainties | XYZ Uncertainties | m | 3 | 0.001 | -1.0 | 64.535 | -1.0 | -1.0 | software | variable | default |  |  | Uncertainties of Cartesian coordinates (0: X, 1: Y, 2: Z) resulting from uncertainty propagation based on contributing systematic and random measurement uncertainties from several sources
260 | riegl.tpu_thu | Total Horizontal Uncertainty | m | 1 | 0.001 | -1.0 | 64.535 | -1.0 | -1.0 | software | variable | default |  |  | Total Horizontal Uncertainty (THU) at a confidence level of 95% derived from x- and y-component of xyz uncertainties
261 | riegl.tpu_tvu | Total Vertical Uncertainty | m | 1 | 0.001 | -1.0 | 64.535 | -1.0 | -1.0 | software | variable | default |  |  | Total Vertical Uncertainty (TVU) at a confidence level of 95% derived from z-component of xyz uncertainties

Storage Classes

# | Name | Description
--- | --- | ---
1 | constant | value cannot be changed
2 | variable | value can change from time to time
3 | dynamic | value is likely to be changed often

Compression Options

# | Name | Description
--- | --- | ---
1 | default | nothing special, just use default compression algorithm
2 | delta | calculate differences between two consecutive values
3 | shuffle | shuffle bytes of point attribute values
4 | delta+shuffle | calculate differences and shuffle bytes

Attribute Tags

# | Name | Description
--- | --- | ---
1 | boolean | state/flag
2 | color | color values
3 | direction | direction vector
4 | enumeration | finite set of unique values, optionally with a name
5 | position | position vector
6 | timestamp | timestamp of some event, relative to epoch defined in riegl.time_base
7 | transform | transform position or direction vector during import/export

Version: 1.4.8, Date: 2025-08-29