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Opencpn(1) General Commands Manual Opencpn(1) NAME opencpn - Chartplotter and GPS Navigation Software SYNOPSIS opencpn [options] DESCRIPTION OpenCPN is a chartplotter and navigation GUI program supporting navigation under way as well as planning. It supports a wide range of chart formats using a plugin system. Other plugins provides support for e. g. radar, AIS and weather maps. Program is localized in 20+ languages and ported to sev- eral OS including MacOS, Windows and Linux. OPTIONS -h, --help Show help info. -p Run in portable mode. -l, --loglevel=<level> Set amount of logged information. Level is any of trace, debug, info, message, warning or error, defaulting to info if not set in environment; see ENVIRONMENT. -fullscreen Switch to full screen mode on start. -no_opengl Disable OpenGL video acceleration. This setting will be remembered. -rebuild_gl_raster_cache Rebuild OpenGL raster cache on start. -parse_all_enc Convert all S-57 charts to OpenCPN's internal format on start. -unit_test_1:<num> Display a slideshow of <num> charts and then exit. Zero or negative <num> specifies no limit. PLUGIN LOADING Plugin loading depends on that the opencpn main program can locate the plu- gin object file and that the plugin can locate it's own data. On Linux, the main program searches for plugin .so-files in a library named opencpn/plugins. By default, this path is searched in ~/.lo- cal/lib:/usr/local/lib:/usr/lib. The default search path can be overridden by the OPENCPN_PLUGIN_DIRS environment variable. On other platforms, all plugin object files lives in a single directory de- fined at installation. A plugin's data directory is a path ending with opencpn/plugins/<plu- gin_name>. On Linux, this is by default searched in ~/local/share:/usr/lo- cal/share:/usr/share. This search path is overridden by XDG_DATA_DIRS as defined by the freedesktop spec. Only plugins adapted for this (i. e., us- ing GetPluginDataDir()) handles this properly. On other platforms, the plugin data directories always lives in a common parent defined at installation time. LIBRARY LOADING AND LD_LIBRARY_PATH If LD_LIBRARY_PATH exists in the environment opencpn uses it without modi- fications. Otherwise LD_LIBRARY_PATH is set to the same path as from which plugins are loaded, see above. This ensures that helper binaries can load possible li- braries installed in the same directories as the plugin. ENVIRONMENT OPENCPN_PLUGIN_DIRS Plugin load path, see PLUGIN LOADING OPENCPN_LOGLEVEL Default loglevel if not defined on command line using -l/--loglevel. See the --loglevel option for allowed values. OPENCPN_FATAL_ERROR If defined, displays the message and exits on startup. FILES ~/.opencpn/opencpn.log System log file, a useful tool to solve problems. NOTES The support for OPENCPN_PLUGIN_DIRS and XDG_DATA_DIRS was introduced in version 5.0.0. Prior to this, all plugins was loaded from a single direc- tory and all plugin data directories had a common parent. SEE ALSO http://www.opencpn.org http://www.freedesktop.org July 2018 Opencpn(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | PLUGIN LOADING | LIBRARY LOADING AND LD_LIBRARY_PATH | ENVIRONMENT | FILES | NOTES | SEE ALSO
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