| Re: meaning of 'up' and 'down' in mileageChange.dir and track.mainDir [message #2110 is a reply to message #299] |
Mon, 21 January 2019 13:15  |
christian.rahmig
Messages: 436
Registered: January 2016
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Senior Member |
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Dear all,
Am 13.04.2012 um 16:39 schrieb Susanne Wunsch:
> [...]
>> In my examples on mileage I wrote that the values 'up' and 'down' of
>> the attributes 'mileageChange.dir' and 'track.mainDir' relate to
>> numerical interpretation (raising, falling = "to count up or
>> down"). Therefore, they differ from the typical usage in British
>> English where 'up' relates on "direction to London" and 'down'
>> relates on "direction away from London".
>
> From the next major release on this enumeration values should be renamed
> to "raising" and "falling". See also Trac ticket #145 [1]
>
>> therefore differ from the usage of the attribute mileageChange.dir,
>> where 'dir' of course refers to the _absolute_ mileage direction.
>
> From the next major release on this attribute should be renamed to
> "absDir". See also Trac ticket #144 [2]
In railML 3.1, mileage changes are modelled using <anchor> points of
<linearPositioningSystem>. I added a detailed example in the description
of Trac ticket #144 [2]. Considering this proposal, an attribute @dir or
@absDir is not needed.
> [1] http://trac.assembla.com/railML/ticket/145
> [2] http://trac.assembla.com/railML/ticket/144
Best regards
Christian
--
Christian Rahmig - Infrastructure scheme coordinator
railML.org (Registry of Associations: VR 5750)
Phone Coordinator: +49 173 2714509; railML.org: +49 351 47582911
Altplauen 19h; 01187 Dresden; Germany www.railml.org
Christian Rahmig – Infrastructure scheme coordinator
railML.org (Registry of Associations: VR 5750)
Altplauen 19h; 01187 Dresden; Germany www.railML.org
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