**************************************************************** this file is deprecated - see *.md version of this file **************************************************************** las2tin: reads LIDAR data in LAS/LAZ/ASCII format and creates a TIN. It is possible to triangulate only certain points like only first returns (-first_only) or only last returns (-last_only). One can also only triangulate only points that have a particular classification. The option (-keep_class 2 3) will triangulate only the points of classification 2 or 3. The output of large TIN triangles along the convex hull of the point cloud can be suppressed with the '-concavity 10' option. This will recursively remove all triangles with an edge length of 10 units that are adjacent to the boundary. The default is a concavity of 50 meter. Use '-concavity 0' to disable this. The value is always assumed to be meters and will be multipled with 3.28 for LAS/LAZ files where x and y are known to be in feet. With the '-kill 3' option also triangles in the interior are removed if their edges are 3 meters or longer. It is also possible to compute histograms over the length of edges with '-histo' or '-histo_only'. As arguments this command takes first what should be measured: either each 'edge_length' or the 'min_edge_length' or the 'max_edge_length' around each vertex or the 'min_max_edge_length_diff' around each vertex. The last argument specifies the bin size of the histogram. Closed breaklines can be supplied for hydro-enforcment of lakes, for example ('-lakes lakes.shp', '-lakes hydro.txt') but they must form proper closed polygons and have elevations. Hard breaklines can be integrated for improving the TIN before it is sampled with ('-creeks roads.shp', '-creeks creeks.txt') and while they can be open they must also have elevations. Please license from info@rapidlasso.de to use las2tin commercially. For updates check the website or join the LAStools mailing list. http://lastools.org/ http://groups.google.com/group/lastools/ http://twitter.com/lastools/ http://facebook.com/lastools/ http://linkedin.com/groups?gid=4408378 Martin @lastools **************************************************************** example usage: >> las2tin -i lidar.laz -last_only -histo_only edge_length 0.1 computes an edge length histogram for the last-return TIN >> las2tin -i lidar.laz -last_only -histo_only min_edge_length 0.1 computes a histogram of the shortest edge length found around each vertex in the last-return TIN >> las2tin -i lidar.laz -last_only -histo_only max_edge_length 0.5 computes a histogram of the longest edge length found around each vertex in the last-return TIN >> las2tin -i *.las triangulates all files individually and stores the resulting TINs in ESRI's Shapefile format in files with the same name but different endings. >> las2tin -i *.las -concavity 25 same as above but dropping large triangles along the boundary ... >> las2tin -i lidar.las -o tin.shp triangulates all points and stores the resulting TIN in ESRI's Shapefile format. >> las2tin -i lidar.las -o tin.obj triangulates all points and stores the resulting TIN in OBJ format. >> las2tin -i lidar.laz -o triangles.txt -last_only triangulates all last return points from lidar.laz and stores them as a list of triangles in ASCII format in triangles.txt. >> las2tin -i lidar.laz -o tin.shp -keep_class 2 3 triangulates all points classfied as 2 or 3 from lidar.laz and stores the resulting TIN in ESRI's Shapefile format to file tin.shp. >> las2tin -i lidar1.las lidar2.laz lidar3.laz lidar4.las -merged -o tin.shp triangulates the combined points from the four LAS and LAZ files and stores the resulting TIN in ESRI's Shapefile format to file tin.shp. for more info: E:\LAStools\bin>las2tin -h Filter points based on their coordinates. -keep_tile 631000 4834000 1000 (ll_x ll_y size) -keep_circle 630250.00 4834750.00 100 (x y radius) -keep_xy 630000 4834000 631000 4836000 (min_x min_y max_x max_y) -drop_xy 630000 4834000 631000 4836000 (min_x min_y max_x max_y) -keep_x 631500.50 631501.00 (min_x max_x) -drop_x 631500.50 631501.00 (min_x max_x) -drop_x_below 630000.50 (min_x) -drop_x_above 630500.50 (max_x) -keep_y 4834500.25 4834550.25 (min_y max_y) -drop_y 4834500.25 4834550.25 (min_y max_y) -drop_y_below 4834500.25 (min_y) -drop_y_above 4836000.75 (max_y) -keep_z 11.125 130.725 (min_z max_z) -drop_z 11.125 130.725 (min_z max_z) -drop_z_below 11.125 (min_z) -drop_z_above 130.725 (max_z) -keep_xyz 620000 4830000 100 621000 4831000 200 (min_x min_y min_z max_x max_y max_z) -drop_xyz 620000 4830000 100 621000 4831000 200 (min_x min_y min_z max_x max_y max_z) Filter points based on their return number. -keep_first -first_only -drop_first -keep_last -last_only -drop_last -keep_first_of_many -keep_last_of_many -drop_first_of_many -drop_last_of_many -keep_middle -drop_middle -keep_return 1 2 3 -drop_return 3 4 -keep_single -drop_single -keep_double -drop_double -keep_triple -drop_triple -keep_quadruple -drop_quadruple -keep_quintuple -drop_quintuple Filter points based on the scanline flags. -drop_scan_direction 0 -keep_scan_direction_change -keep_edge_of_flight_line Filter points based on their intensity. -keep_intensity 20 380 -drop_intensity_below 20 -drop_intensity_above 380 -drop_intensity_between 4000 5000 Filter points based on classifications or flags. -keep_class 1 3 7 -drop_class 4 2 -keep_extended_class 43 -drop_extended_class 129 135 -drop_synthetic -keep_synthetic -drop_keypoint -keep_keypoint -drop_withheld -keep_withheld -drop_overlap -keep_overlap Filter points based on their user data. -keep_user_data 1 -drop_user_data 255 -keep_user_data_below 50 -keep_user_data_above 150 -keep_user_data_between 10 20 -drop_user_data_below 1 -drop_user_data_above 100 -drop_user_data_between 10 40 Filter points based on their point source ID. -keep_point_source 3 -keep_point_source_between 2 6 -drop_point_source 27 -drop_point_source_below 6 -drop_point_source_above 15 -drop_point_source_between 17 21 Filter points based on their scan angle. -keep_scan_angle -15 15 -drop_abs_scan_angle_above 15 -drop_abs_scan_angle_below 1 -drop_scan_angle_below -15 -drop_scan_angle_above 15 -drop_scan_angle_between -25 -23 Filter points based on their gps time. -keep_gps_time 11.125 130.725 -drop_gps_time_below 11.125 -drop_gps_time_above 130.725 -drop_gps_time_between 22.0 48.0 Filter points based on their RGB/NIR channel. -keep_RGB_red 1 1 -keep_RGB_green 30 100 -keep_RGB_blue 0 0 -keep_RGB_nir 64 127 Filter points based on their wavepacket. -keep_wavepacket 0 -drop_wavepacket 3 Filter points with simple thinning. -keep_every_nth 2 -keep_random_fraction 0.1 -thin_with_grid 1.0 -thin_with_time 0.001 Boolean combination of filters. -filter_and Transform coordinates. -translate_x -2.5 -scale_z 0.3048 -rotate_xy 15.0 620000 4100000 (angle + origin) -translate_xyz 0.5 0.5 0 -translate_then_scale_y -0.5 1.001 -switch_x_y -switch_x_z -switch_y_z -clamp_z_below 70.5 -clamp_z 70.5 72.5 -copy_attribute_into_z 0 Transform raw xyz integers. -translate_raw_z 20 -translate_raw_xyz 1 1 0 -translate_raw_xy_at_random 2 2 -clamp_raw_z 500 800 Transform intensity. -set_intensity 0 -scale_intensity 2.5 -translate_intensity 50 -translate_then_scale_intensity 0.5 3.1 -clamp_intensity 0 255 -clamp_intensity_above 255 Transform scan_angle. -scale_scan_angle 1.944445 -translate_scan_angle -5 -translate_then_scale_scan_angle -0.5 2.1 Change the return number or return count of points. -repair_zero_returns -set_return_number 1 -set_extended_return_number 10 -change_return_number_from_to 2 1 -set_number_of_returns 2 -set_number_of_returns 15 -change_number_of_returns_from_to 0 2 Modify the classification. -set_classification 2 -change_classification_from_to 2 4 -classify_z_below_as -5.0 7 -classify_z_above_as 70.0 7 -classify_z_between_as 2.0 5.0 4 -classify_intensity_above_as 200 9 -classify_intensity_below_as 30 11 -change_extended_classification_from_to 6 46 -move_ancient_to_extended_classification Change the flags. -set_withheld_flag 0 -set_synthetic_flag 1 -set_keypoint_flag 0 -set_extended_overlap_flag 1 Modify the extended scanner channel. -set_extended_scanner_channel 2 Modify the user data. -set_user_data 0 -change_user_data_from_to 23 26 Modify the point source ID. -set_point_source 500 -change_point_source_from_to 1023 1024 -copy_user_data_into_point_source -bin_Z_into_point_source 200 -bin_abs_scan_angle_into_point_source 2 Transform gps_time. -set_gps_time 113556962.005715 -translate_gps_time 40.50 -adjusted_to_week -week_to_adjusted 1671 Transform RGB colors. -set_RGB 255 0 127 -scale_RGB 2 4 2 -scale_RGB_down (by 256) -scale_RGB_up (by 256) -switch_R_G -switch_R_B -switch_B_G Supported LAS Inputs -i lidar.las -i lidar.laz -i lidar1.las lidar2.las lidar3.las -merged -i *.las - merged -i flight0??.laz flight1??.laz -i terrasolid.bin -i esri.shp -i nasa.qi -i lidar.txt -iparse xyzti -iskip 2 (on-the-fly from ASCII) -i lidar.txt -iparse xyzi -itranslate_intensity 1024 -lof file_list.txt -stdin (pipe from stdin) -rescale 0.01 0.01 0.001 -rescale_xy 0.01 0.01 -rescale_z 0.01 -reoffset 600000 4000000 0 Fast AOI Queries for LAS/LAZ with spatial indexing LAX files -inside min_x min_y max_x max_y -inside_tile ll_x ll_y size -inside_circle center_x center_y radius Supported LAS Outputs -o lidar.las -o lidar.laz -o xyzta.txt -oparse xyzta (on-the-fly to ASCII) -o terrasolid.bin -o nasa.qi -odir C:\data\ground (specify output directory) -odix _classified (specify file name appendix) -ocut 2 (cut the last two characters from name) -olas -olaz -otxt -obin -oqfit (specify format) -stdout (pipe to stdout) -nil (pipe to NULL) LAStools (by info@rapidlasso.de) version 160910 (unlicensed) usage: las2tin -i *.las las2tin -i *.las -concavity 25 -oobj las2tin -i *.laz -concavity 1000 -kill 10 -oshp las2tin -i lidar.las -o tin.shp las2tin -i lidar.laz -first_only -o mesh.obj las2tin -i lidar.laz -last_only -o indices_only.txt las2tin -i lidar.las -last_only -keep_class 2 6 8 -o tin.shp las2tin -i lidar.laz -keep_class 8 las2tin -i lidar.laz -last_only -histo_only edge_length 0.1 las2tin -i lidar.laz -last_only -histo_only min_edge_length 0.1 las2tin -h --------------- if you find bugs let me (info@rapidlasso.de) know.