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Dimension.json
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Dimension.json
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{ "dimensions": [
{
"name": "X",
"type": "double",
"description": "X coordinate"
},
{
"name": "Y",
"type": "double",
"description": "Y coordinate"
},
{
"name": "Z",
"type": "double",
"description": "Z coordinate"
},
{
"name": "Intensity",
"type": "uint16",
"description": "Representation of the pulse return magnitude"
},
{
"name": "Amplitude",
"type": "float",
"description": "This is the ratio of the received power to the power received at the detection limit expressed in dB"
},
{
"name": "Reflectance",
"type": "float",
"description": "Ratio of the received power to the power that would be received from a white diffuse target at the same distance expressed in dB. The reflectance represents a range independent property of the target. The surface normal of this target is assumed to be in parallel to the laser beam direction."
},
{
"name": "ReturnNumber",
"type": "uint8",
"description": "Pulse return number for a given output pulse. A given output laser pulse can have many returns, and they must be marked in order, starting with 1"
},
{
"name": "NumberOfReturns",
"type": "uint8",
"description": "Total number of returns for a given pulse."
},
{
"name": "ScanDirectionFlag",
"type": "uint8",
"description": "Direction at which the scanner mirror was traveling at the time of the output pulse. A value of 1 is a positive scan direction, and a bit value of 0 is a negative scan direction, where positive scan direction is a scan moving from the left side of the in-track direction to the right side and negative the opposite"
},
{
"name": "EdgeOfFlightLine",
"type": "uint8",
"description": "Indicates the end of scanline before a direction change with a value of 1 - 0 otherwise"
},
{
"name": "Classification",
"type": "uint8",
"description": "ASPRS classification. 0 for no classification. See LAS specification for details."
},
{
"name": "ScanAngleRank",
"alt_names": "ScanAngle",
"type": "float",
"description": "Angle degree at which the laster point was output from the system, including the roll of the aircraft. The scan angle is based on being nadir, and -90 the left side of the aircraft in the direction of flight"
},
{
"name": "UserData",
"type": "uint8",
"description": "Unspecified user data"
},
{
"name": "PointSourceId",
"type": "uint16",
"description": "File source ID from which the point originated. Zero indicates that the point originated in the current file"
},
{
"name": "Red",
"type": "uint16",
"description": "Red image channel value"
},
{
"name": "Green",
"type": "uint16",
"description": "Green image channel value"
},
{
"name": "Blue",
"type": "uint16",
"description": "Blue image channel value"
},
{
"name": "GpsTime",
"type": "double",
"description": "GPS time that the point was acquired"
},
{
"name": "InternalTime",
"type": "double",
"description": "Scanner's internal time when the point was acquired, in seconds"
},
{
"name": "OffsetTime",
"alt_names": "Time",
"type": "uint32",
"description": "Milliseconds from first acquired point"
},
{
"name": "IsPpsLocked",
"type": "uint8",
"description": "The external PPS signal was found to be synchronized at the time of the current laser shot."
},
{
"name": "StartPulse",
"type": "int32",
"description": "Relative pulse signal strength"
},
{
"name": "ReflectedPulse",
"type": "int32",
"description": "Relative reflected pulse signal strength"
},
{
"name": "Pdop",
"type": "float",
"description": "GPS PDOP (dilution of precision)"
},
{
"name": "Pitch",
"type": "float",
"description": "Pitch in degrees"
},
{
"name": "Roll",
"type": "float",
"description": "Roll in degrees"
},
{
"name": "PulseWidth",
"type": "float",
"description": "Laser received pulse width (digitizer samples)"
},
{
"name": "Deviation",
"type": "float",
"description": "A larger value for deviation indicates larger distortion."
},
{
"name": "PassiveSignal",
"type": "int32",
"description": "Relative passive signal"
},
{
"name": "BackgroundRadiation",
"type": "float",
"description": "A measure of background radiation."
},
{
"name": "PassiveX",
"type": "double",
"description": "Passive X footprint"
},
{
"name": "PassiveY",
"type": "double",
"description": "Passive Y footprint"
},
{
"name": "PassiveZ",
"type": "double",
"description": "Passive Z footprint"
},
{
"name": "XVelocity",
"type": "double",
"description": "X Velocity"
},
{
"name": "YVelocity",
"type": "double",
"description": "Y Velocity"
},
{
"name": "ZVelocity",
"type": "double",
"description": "Z Velocity"
},
{
"name": "Azimuth",
"alt_names": "PlatformHeading",
"type": "double",
"description": "Scanner azimuth"
},
{
"name": "WanderAngle",
"type": "double",
"description": "Wander Angle"
},
{
"name": "XBodyAccel",
"type": "double",
"description": "X Body Acceleration"
},
{
"name": "YBodyAccel",
"type": "double",
"description": "Y Body Acceleration"
},
{
"name": "ZBodyAccel",
"type": "double",
"description": "Z Body Acceleration"
},
{
"name": "XBodyAngRate",
"type": "double",
"description": "X Body Angle Rate"
},
{
"name": "YBodyAngRate",
"type": "double",
"description": "Y Body Angle Rate"
},
{
"name": "ZBodyAngRate",
"type": "double",
"description": "Z Body Angle Rate"
},
{
"name": "Flag",
"type": "uint8",
"description": "Flag"
},
{
"name": "Mark",
"type": "uint8",
"description": "Mark"
},
{
"name": "Alpha",
"type": "uint16",
"description": "Alpha"
},
{
"name": "EchoRange",
"type": "double",
"description": "Echo Range"
},
{
"name": "ScanChannel",
"type": "uint8",
"description": "Scan Channel"
},
{
"name": "Infrared",
"alt_names": "NearInfrared",
"type": "uint16",
"description": "Infrared"
},
{
"name": "HeightAboveGround",
"type": "double",
"description": "Height Above Ground"
},
{
"name": "ClassFlags",
"type": "uint8",
"description": "Class Flags"
},
{
"name": "LvisLfid",
"alt_names": "Lvis_Lfid",
"type": "uint64",
"description": "LVIS_LFID"
},
{
"name": "ShotNumber",
"type": "uint64",
"description": "Shot Number"
},
{
"name": "LongitudeCentroid",
"alt_names": "Longitude_Centroid",
"type": "double",
"description": "Longitude Centroid"
},
{
"name": "LatitudeCentroid",
"alt_names": "Latitude_Centroid",
"type": "double",
"description": "Latitude Centroid"
},
{
"name": "ElevationCentroid",
"alt_names": "Elevation_Centroid",
"type": "double",
"description": "Elevation Centroid"
},
{
"name": "LongitudeLow",
"alt_names": "Longitude_Low",
"type": "double",
"description": "Longitude Low"
},
{
"name": "LatitudeLow",
"alt_names": "Latitude_Low",
"type": "double",
"description": "Latitude Low"
},
{
"name": "ElevationLow",
"alt_names": "Elevation_Low",
"type": "double",
"description": "Elevation Low"
},
{
"name": "LongitudeHigh",
"alt_names": "Longitude_High",
"type": "double",
"description": "Longitude High"
},
{
"name": "LatitudeHigh",
"alt_names": "Latitude_High",
"type": "double",
"description": "Latitude High"
},
{
"name": "ElevationHigh",
"alt_names": "Elevation_High",
"type": "double",
"description": "Elevation High"
},
{
"name": "PointId",
"type": "uint32",
"description": "An explicit representation of point ordering within a file, which allows this usually-implicit information to be preserved when reordering points."
},
{
"name": "OriginId",
"type": "uint32",
"description": "A file source ID from which the point originated. This ID is global to a derivative dataset which may be aggregated from multiple files."
},
{
"name": "NormalX",
"alt_names": "nx",
"type": "double",
"description": "X component of a vector normal to surface at this point"
},
{
"name": "NormalY",
"alt_names": "ny",
"type": "double",
"description": "Y component of a vector normal to surface at this point"
},
{
"name": "NormalZ",
"alt_names": "nz",
"type": "double",
"description": "Z component of a vector normal to surface at this point"
},
{
"name": "Curvature",
"type": "double",
"description": "Curvature of surface at this point"
},
{
"name": "Density",
"type": "double",
"description": "Estimate of point density"
}
] }