I have some LAS files that were delivered in an Albers Projection (NAD83-1983-USFS-R6-Abers, also SR-ORG:25, or US Forest Service Region 6 Albers)
I am Trying to re-project them to our standard of Washington State Plane south, NAD83.
I have not been able to find a standard EPSG code for this projection, and have not been able to figure out if I can specify a user-defined Albers projection parameter. Trying to use las2las.exe.
Does Las2Las have this projection coded in anywhere? Or can you clue me
in to the syntax of specifying an Albers input projection parameters?
(I tried NOT specifying the input projection, but it ended up in the middle of the Pacific Ocean.)
Syntax tried --> .\las2las.exe -v -i 48117B3101.las -target_sp83 WA_S -target_feet -target_elevation_feet -olas -o las_files
Thanks! Any help will be greatly appreciated!
Guy McWethy
Input File report from lasinfo ....
lasinfo report for N:\projects\public\colville_2015\original_data\All_Return_Point_Cloud\48117B3101.las
reporting all LAS header entries:
file signature: 'LASF'
file source ID: 0
global_encoding: 1
project ID GUID data 1-4: 084B9F75-F1A0-42C1-0000-000000000000
version major.minor: 1.2
system identifier: 'ALS70'
generating software: 'GeoCue LAS Updater'
file creation day/year: 250/2015
header size: 227
offset to point data: 1059
number var. length records: 5
point data format: 1
point data record length: 28
number of point records: 2182817
number of points by return: 1512970 483528 147854 33531 4559
scale factor x y z: 0.001 0.001 0.001
offset x y z: 0 3000000 0
min x y z: 794981.808 1578195.843 793.423
max x y z: 795339.265 1578606.996 1776.882
variable length header record 1 of 5:
reserved 43707
user ID 'LASF_Projection'
record ID 34735
length after header 216
description 'GeoTiff Projection Keys'
GeoKeyDirectoryTag version 1.1.0 number of keys 26
key 1024 tiff_tag_location 0 count 1 value_offset 1 - GTModelTypeGeoKey: ModelTypeProjected
key 1026 tiff_tag_location 34737 count 35 value_offset 54 - GTCitationGeoKey: PCS Name = NAD_1983_USFS_R6_A
key 2048 tiff_tag_location 0 count 1 value_offset 4269 - GeographicTypeGeoKey: GCS_NAD83
key 2049 tiff_tag_location 34737 count 103 value_offset 116 - GeogCitationGeoKey: GCS Name = GCS_North_Amer
83|Datum = North_American_1983|Ellipsoid = GRS_1980|Primem = Greenwich
key 2050 tiff_tag_location 0 count 1 value_offset 6269 - GeogGeodeticDatumGeoKey: Datum_North_American_Datu
key 2051 tiff_tag_location 0 count 1 value_offset 8901 - GeogPrimeMeridianGeoKey: PM_Greenwich
key 2054 tiff_tag_location 0 count 1 value_offset 9102 - GeogAngularUnitsGeoKey: Angular_Degree
key 2055 tiff_tag_location 34736 count 1 value_offset 10 - GeogAngularUnitSizeGeoKey: 0.01745329252
key 2056 tiff_tag_location 0 count 1 value_offset 7019 - GeogEllipsoidGeoKey: Ellipse_GRS_1980
key 2057 tiff_tag_location 34736 count 1 value_offset 7 - GeogSemiMajorAxisGeoKey: 6378137
key 2059 tiff_tag_location 34736 count 1 value_offset 8 - GeogInvFlatteningGeoKey: 298.2572221
key 2061 tiff_tag_location 34736 count 1 value_offset 9 - GeogPrimeMeridianLongGeoKey: 0
key 3072 tiff_tag_location 0 count 1 value_offset 32767 - ProjectedCSTypeGeoKey: user-defined
key 3073 tiff_tag_location 34737 count 54 value_offset 0 - PCSCitationGeoKey: NAD_1983_USFS_R6_Albers|proje
Albers Equal Area
key 3074 tiff_tag_location 0 count 1 value_offset 32767 - ProjectionGeoKey: user-defined
key 3075 tiff_tag_location 0 count 1 value_offset 11 - ProjCoordTransGeoKey: CT_AlbersEqualArea
key 3076 tiff_tag_location 0 count 1 value_offset 9001 - ProjLinearUnitsGeoKey: Linear_Meter
key 3077 tiff_tag_location 34736 count 1 value_offset 6 - ProjLinearUnitSizeGeoKey: 1
key 3078 tiff_tag_location 34736 count 1 value_offset 0 - ProjStdParallel1GeoKey: 43
key 3079 tiff_tag_location 34736 count 1 value_offset 1 - ProjStdParallel2GeoKey: 48
key 3081 tiff_tag_location 34736 count 1 value_offset 2 - ProjNatOriginLatGeoKey: 34
key 3082 tiff_tag_location 34736 count 1 value_offset 3 - ProjFalseEastingGeoKey: 600000
key 3083 tiff_tag_location 34736 count 1 value_offset 4 - ProjFalseNorthingGeoKey: 0
key 3088 tiff_tag_location 34736 count 1 value_offset 5 - ProjCenterLongGeoKey: -120
key 4097 tiff_tag_location 34737 count 27 value_offset 89 - VerticalCitationGeoKey: NAVD88 - Geoid12A (Mete
key 4099 tiff_tag_location 0 count 1 value_offset 9001 - VerticalUnitsGeoKey: Linear_Meter
variable length header record 2 of 5:
reserved 43707
user ID 'LASF_Projection'
record ID 34736
length after header 88
description 'GeoTiff double parameters'
GeoDoubleParamsTag (number of doubles 11)
43 48 34 600000 0 -120 1 6.37814e+006 298.257 0 0.0174533
variable length header record 3 of 5:
reserved 43707
user ID 'LASF_Projection'
record ID 34737
length after header 220
description 'GeoTiff ASCII parameters'
GeoAsciiParamsTag (number of characters 220)
NAD_1983_USFS_R6_Albers|projection: Albers Equal Area|PCS Name = NAD_1983_USFS_R6_Albers|NAVD88 - Geoid12A
)|GCS Name = GCS_North_American_1983|Datum = North_American_1983|Ellipsoid = GRS_1980|Primem = Greenwich|
variable length header record 4 of 5:
reserved 43707
user ID 'NIIRS10'
record ID 4
length after header 10
description 'NIIRS10 Timestamp'
variable length header record 5 of 5:
reserved 43707
user ID 'NIIRS10'
record ID 1
length after header 26
description 'NIIRS10 Tile Index'
the header is followed by 2 user-defined bytes
reporting minimum and maximum for all LAS point record entries ...
X 794981808 795339265
Y -1421804157 -1421393004
Z 793423 1776882
intensity 0 257
return_number 1 7
number_of_returns 1 7
edge_of_flight_line 0 1
scan_direction_flag 0 1
classification 1 18
scan_angle_rank -21 22
user_data 0 1
point_source_ID 85 87
gps_time 120405375.745355 120406049.706210
number of first returns: 1512970
number of intermediate returns: 187250
number of last returns: 1510088
number of single returns: 1027491
WARNING: there are 353 points with return number 6
WARNING: there are 22 points with return number 7
overview over number of returns of given pulse: 1027491 671347 343891 116695 21195 2039 159
histogram of classification of points:
2038620 unclassified (1)
144009 ground (2)
183 noise (7)
5 Reserved for ASPRS Definition (18)
PROJECTED FILE lasinfo Report ...
lasinfo report for N:\projects\public\colville_2015\las_files\48117B3101_rp.las
reporting all LAS header entries:
file signature: 'LASF'
file source ID: 0
global_encoding: 1
project ID GUID data 1-4: 084B9F75-F1A0-42C1-0000-000000000000
version major.minor: 1.2
system identifier: 'LAStools (c) by rapidlasso GmbH'
generating software: 'las2las (version 160124)'
file creation day/year: 250/2015
header size: 227
offset to point data: 467
number var. length records: 3
point data format: 1
point data record length: 28
number of point records: 2182817
number of points by return: 1512970 483528 147854 33531 4559
scale factor x y z: 0.001 0.001 0.001
offset x y z: 0 3000000 0
min x y z: 794981.808 1578195.843 793.423
max x y z: 795339.265 1578606.996 1776.882
variable length header record 1 of 3:
reserved 43707
user ID 'LASF_Projection'
record ID 34735
length after header 40
description 'by LAStools of rapidlasso GmbH'
GeoKeyDirectoryTag version 1.1.0 number of keys 4
key 1024 tiff_tag_location 0 count 1 value_offset 1 - GTModelTypeGeoKey: ModelTypeProjected
key 3072 tiff_tag_location 0 count 1 value_offset 32149 - ProjectedCSTypeGeoKey: NAD83 / Washington South
key 3076 tiff_tag_location 0 count 1 value_offset 9002 - ProjLinearUnitsGeoKey: Linear_Foot
key 4099 tiff_tag_location 0 count 1 value_offset 9002 - VerticalUnitsGeoKey: Linear_Foot
variable length header record 2 of 3:
reserved 43707
user ID 'NIIRS10'
record ID 1
length after header 26
description 'NIIRS10 Tile Index'
variable length header record 3 of 3:
reserved 43707
user ID 'NIIRS10'
record ID 4
length after header 10
description 'NIIRS10 Timestamp'
the header is followed by 2 user-defined bytes
reporting minimum and maximum for all LAS point record entries ...
X 794981808 795339265
Y -1421804157 -1421393004
Z 793423 1776882
intensity 0 257
return_number 1 7
number_of_returns 1 7
edge_of_flight_line 0 1
scan_direction_flag 0 1
classification 1 18
scan_angle_rank -21 22
user_data 0 1
point_source_ID 85 87
gps_time 120405375.745355 120406049.706210
number of first returns: 1512970
number of intermediate returns: 187250
number of last returns: 1510088
number of single returns: 1027491
WARNING: there are 353 points with return number 6
WARNING: there are 22 points with return number 7
overview over number of returns of given pulse: 1027491 671347 343891 116695 21195 2039 159
histogram of classification of points:
2038620 unclassified (1)
144009 ground (2)
183 noise (7)
5 Reserved for ASPRS Definition (18)