Changes between Initial Version and Version 1 of ossim-hlz


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Timestamp:
Mar 20, 2015, 6:24:10 AM (9 years ago)
Author:
okramer
Comment:

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  • ossim-hlz

    v1 v1  
     1'''OSSIM Helicopter Landing Zone Utility'''
     2
     3This utility accepts an area of interest, or alternatively an input elevation model file (DEM file), along with landing zone criteria, and determines suitable HLZs. The output is a TIF raster image with the HLZ indicated in some color.
     4
     5Usage: ossim-hlz [options] <dest_lat> <dest_lon> <output-image>[[BR]]
     6
     7Options:
     8  --dem <filename>              Specifies the input DEM filename. If none
     9                                provided, the elevation database is referenced
     10                                as specified in prefs file
     11  --disable-elev                Will disable the elevation
     12  --disable-notify              Takes an argument. Arguments are ALL, WARN,
     13                                NOTICE, INFO, FATAL, DEBUG.  If you want
     14                                multiple disables then just do multiple
     15                                --disable-notify on the command line.  All
     16                                argument are case insensitive.  Default is all
     17                                are enabled.
     18  --disable-plugin              Will disable the plugin loader
     19  --gsd <meters>                Specifies output GSD in meters. Defaults to the
     20                                same resolution as best input DEM.
     21                                Alternatively, if a DEM file is specified, the
     22                                product GSD defaults to the input DEM's GSD.
     23  --lut <filename>              Specifies the optional lookup table filename for
     24                                mapping the single-band output image to an RGB.
     25                                The LUT provided must be in the
     26                                ossimIndexToRgbLutFilter format and must handle
     27                                the discrete output values (see --values
     28                                option).
     29  --ossim-logfile               takes a logfile as an argument.  All output
     30                                messages are redirected to the specified log
     31                                file.  By default there is no log file and all
     32                                messages are enabled.
     33  --reticle <int>               Specifies the size of the reticle at the
     34                                destination pointlocation in pixels from the
     35                                center (i.e., the radius of the reticle).
     36                                Defaults to 10. A value of 0 hides the reticle.
     37                                See --values option for setting reticle color.
     38  --rlz <meters>                Specifies minimum radius of landing zone.
     39                                Defaults to 25 m.
     40  --roi <meters>                radius of interest surrounding the destination
     41                                point. If absent, the product defaults to 1024 x
     42                                1024 pixels, with a radius of 512 * GSD.
     43                                Alternatively, if a DEM file is specified, the
     44                                product ROI defaults to the full DEM coverage.
     45  --roughness <meters>          Specifies the terrain roughness threshold
     46                                (meters).This is the maximum deviation from a
     47                                flat plane permitted. Defaults to 0.5 m.
     48  --simulation                  For engineering/debug purposes
     49  --size <int>                  Instead of a radius of interest, directly
     50                                specifies the dimensions of the  output product
     51                                in pixels (output is square). Required unless
     52                                --roi is specified and/or an inout DEM is
     53                                specified.
     54  --slope <degrees>             Threshold for acceptable landing zone terrain
     55                                slope. Defaults to 7 deg.
     56  --summary                     Causes a product summary to be output to the
     57                                console.
     58  --target <lat> <lon>          The center target destination around which
     59                                suitable HLZs are identified. This can be
     60                                omitted if an input DEM file is provided, in
     61                                which case the center of the DEM is the target.
     62  --threads <n>                 Number of threads. Defaults to use all available
     63                                cores. For engineering/debug purposes.
     64  --values <bad marg good ret>  Specifies the pixel values (0-255) for the
     65                                output product  corresponding to bad, marginal,
     66                                and good landing zones, respectively, with the
     67                                fourth value representing the reticle value.
     68                                Defaults to bad=0 (null), marg=1, , good=2, and
     69                                reticle is highlighted with 3.
     70  -K                            specify individual keywords to add to the
     71                                preferences keyword list: name=value
     72  -P                            specify a preference file to load
     73  -T                            specify the classes to trace, ex:
     74                                ossimInit|ossimImage.*
     75                                will trace ossimInit and all ossimImage classes
     76  -V or --version               Display version information.
     77
     78
     79Finds acceptable helicopter landing zones given terrain data and LZ criteria. The output is an 8-bit, single band, raster image. Options exist for customizing the output pixel values including an option to generate a color raster with the use of a look-up table.
     80
     81Examples:
     82
     83    ossim-hlz --roi 5000 --rlz 25 --target 25.5000 -80.000 output-hlz.tif[[BR]]
     84
     85    ossim-hlz --dem mydata.hgt --rlz 25 output-hlz.tif
     86