Convert LAS image(s) to a geoTIFF image
Converts one or more LAS images to a single geoTIFF greyscale or multi-band image.
- IN
- Input file(s). The input LAS image(s). Subbanding and windowing are supported.
- OUTFILE
- Output file. The output geoTIFF file. This file will be created using the directory and filename specified. If an extension is not specified, the extension .TIF will be used. Also, OUTFILE will be used for the directory and root specification of the intermediate .BIL file.
- WOPT(NO)
- World file creation flag. Flag to determine whether to create an ascii "world" file describing the georeferencing affine transformation. The world file will have the same root name as the output geoTIFF with the extension .tfw.
The LAS image color.img will be converted to the geoTIFF format file bob3.tif. The intermediate file bob3.bil will not be deleted. A world file (bob3.tfw) will be created.
The LAS image color.img will be converted to the geoTIFF format file bob3.tif. The upper left corner of the output image will correspond to 500,500 of the input image and will have extents of 1000 by 1000. The bands used will be 1, 2 and 4 as red, green, blue repectively. The intermediate file will be deleted. No world file will be created.
The requested input LAS image(s) will be converted from LAS to an output geoTIFF file.
The standard number of bands are 1 or 3 bands. Some TIFF viewers cannot handle <n> band images and may not be able to view this geoTIFF image.
The projection coefficients flag is set to invalid. The information normally stored in the projection coefficients is not available.
The corner coordinates flag is set to invalid. The geolocating information is not available.
The ground distance flag is set to invalid. If available the corner coordinates will be used to determine the distance.
Ellipsoids are not fully supported by las2geotiff. When an ellipsoid is encountered in a LAS image that is not supported by the current GeoTIFF spec., as much information will be keyed to the GeoTIFF file as is possible, which may be insufficient for programs like ERDAS to display the projection information properly.
The projection code in the LAS image is not translatible in the current version of the geoTIFF standard. No projection will be assigned to the geoTIFF image.
Certain projection information in the LAS DDR did not have correlating code(s) in the current GeoTIFF spec. As much information will be keyed to the GeoTIFF file as is possible, which may be insufficient for programs like ERDAS to display the projection information properly.
The world file was not created because either the corner information or the pixel size information was not valid in the LAS DDR.
The GeoTIFF spec. considers imagery in the UTM projection as a special case and requires different keys to be set to define the projection information. The image being converted uses an ellipsoid, which does not fit into the keys used by GeoTIFF to define the UTM projection information. Processing will continue but be aware the keys being set by las2geotiff may be insufficient for programs like ERDAS to display the projection information properly.
The generic LAS UTM zone will cause the ProjectionGeoKey to be set to "Unknown" in the GeoTIFF file, which may cause problems when attempting to display projection information in programs like ERDAS.
The UTM/SPCS zone specified in the LAS image does not have a corellating code in the current GeoTIFF spec. As much information will be keyed to the GeoTIFF file as is possible, which may be insufficient for programs like ERDAS to display the projection information properly.
LAS2GEOTIFF will only ingest 8-bit LAS images because the output geoTIFF can only be 8-bit. This is according to Baseline TIFF revision 6.0 which shows that TIFF (and geoTIFF) images will only be 8-bit for grayscale, palette-color and RGB images.
The error message that is displayed immediately preceding this message is the specific error that occured. Processing is terminated.
There was a problem allocating memory for the geoTIFF keys. Report problem, along with full information about configuration, etc, to system administrator.
The current input LAS image file could not be opened. Check file permissions and rerun.
The output geoTIFF image file could not be created. Check file permissions and rerun.
The specified output file <xxxxx> already exists in the location specified.
An input LAS image file list could not be read or the file count could not be determined.
An error occurred while trying to allocate memory for either tiffbuf or lasbuf. If the error persists contact the system administrator.
The input LAS image file <xxxxx> could not be read. Check file permissions and rerun.
Fatal Error Messages (continued)
The output geoTIFF file <xxxxx> could not be written. Check file permissions and rerun.