International hydrographic organization specifications for chart content and display aspects of ecdis



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S-52 Appendix 2 - IHO
S-52 Appendix 2 - IHO
source_file = the input colour table file from the Presentation Library. It is in ASCII format (like the .dai file, provided in the digital PL files.
colour_table = one of the following DAY, DUSK, NIGHT This is the name of the table being processed. It corresponds to the data in the source file
output_file
= the generated file which contains the desired RGB values for each colour in the colour table. A check on the colour tolerance (E) is calculated in the routine, and out or tolerance values are flagged in the output file. (This is a check of the monitor's capability to produce the colour as opposed to a check of the actual colour value achieved. Actual colour measurements must be made to check real tolerances) Care must betaken in choosing the filename for the output file. If a file by this name already exists, the new file will be renamed to its current name, with the last character in the filename changed to a 0. For example, if the output_file argument was "OUT.LIB", and this file already existed, the new file would be renamed to "OUT.LI0" before writing the new colour table information.
config_file
= a configuration file which contains the monitor's characteristics, formatting strings, gamma function values, etc. This file is described below. If this command line argument is not specified, the default file is CIE2RGB.INI, which is a 'dummy' file with data fora 'typical' monitor. If this command line argument is not used, then the default values will be used. It should be noted here that the output colours from this calibration will be accurate only if the monitor is calibrated and the calibration data is used for the calculations. Configuration File Format is in standard Microsoft Windows initialization file format. This file is divided, for example, CIE2RGB's configuration file has a heading called "General" under which key values such as units, coordinate system, formatting strings, etc, are stored.


73 S, Edition 6.0 March 2010 The following is an annotated copy of a sample configuration file, CIE2RGB.INI:

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