Translation

Frank Purcell edited this page Nov 27, 2013 · 21 revisions

There are several places where localization can be performed:

  1. The Javascript client (otp-leaflet-client or otp-openlayers-client)
  2. Error messages returned from the server in API responses (server side).
  3. OpenStreetMap tags describing road types (when building a graph).

Client Translations

The OTP Javascript clients can switch between different languages by changing one parameter value.

Things to know about multiple languages in OTP:

NOTES:

  • Many of the translations are a bit out of date with recent work to localize the webapp (and thus contain 'default' English translations where a translation string is missing). As of May 2011, Italian.js, followed by Spanish.js (missing a few new strings) are the most complete.

  • If you can help translate any of the language files, or want to add a new language, contributions are warmly welcomed by the user mailing list.

  • If you're looking to contribute new translations, a discussion on getting Italian translations into OTP might be interesting reading.

  • There was talk a year ago (April 2010) of changing the translation scheme in OTP to GNU get text Portable Object (PO) files. A good idea, which might get revisited (as having our translation strings in .js is limiting for anything other than a browser based UI; plus there are constructs in different languages that don't follow those of English...something which PO files are more sophisticated at handling).

Server Side Translations

The OTP server translates strings based on the JVM's default locale, using translation properties files placed in otp-core/src/main/resources (opentripplanner-api-webapp/src/defaults/resources/ in the old module layout). These files are named Message_XY.properties for server messages and WayProperties_XY.properties for the OpenStreetMap tag translations.

In order to see the language of your choice, you may need to modify the JVM's default locale (if you do not want the value derived from your system settings). This can be accomplished with JVM arguments:

$java -Duser.country=DE -Duser.language=de ...

The documentation on this wiki is outdated and should not be used

unless you are intentionally working with legacy versions of OpenTripPlanner. Please consult the current documentation at readthedocs

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