Routino : Configuration
=======================
New in version 1.4 of Routino is the use of configuration files to
allow more information to be provided to the programs at run-time. The
configuration files that are used are:
* Tagging transformation rules for the planetsplitter program.
* Routing profiles for the router program.
* Output translations for the router program.
In keeping with the nature of the input and output files the
configuration files are also XML files. Each of the files uses a custom
defined XML schema and an XSD file is provided for each of them.
Tag Transformation Rules
------------------------
The default name of the tagging transformation rules XML configuration
file is tagging.xml in the same directory as the generated database
files. Other filenames can be specified on the command line using the
--tagging option. When processing the input it is possible to have a
different set of tagging rules for each file; for example different
rules for different countries.
The tagging rules allow modifying the highway tags in the source file
so that the routing can be performed on a simpler set of tags. This
removes the special case tagging rules from the source code into the
configuration file where they can be easily modified. Part of the
provided tagging.xml file showing the rules for motorway_link and
motorway highway types.
...
The rules all have the same format; an if or ifnot element at the top
level for matching the input and some other elements inside to be used
if there was a match.
Within the if and ifnot rules any of the rules can be used. These are
if, ifnot, set, unset, output or logerror elements.
The rules for matching the if or ifnot elements are the following:
* An if rule that has both k and v specified is only matched if a tag
exists in the input that matches both.
* An if rule that has only the k attribute is matched if a tag with
that key exists.
* An if rule that has only the v attribute is matched for each tag
with that value (i.e. the contents may be used more than once).
* An if rule that has neither attribute specified always matches.
* An ifnot rule that has both k and v specified is only matched if no
tag exists in the input that matches both.
* An ifnot rule that has only the k attribute is matched only if no
tag with that key exists.
* An ifnot rule that has only the v attribute is only matched if no
tag with that value exists.
* An ifnot rule that has neither attribute specified never matches.
For set, unset, output or logerror elements inside of an if rule an
unspecified value for the k or v attribute is replaced by the values
from the tag that matched the outer if rule. This makes it simple to
delete tags that match a particular rule without having to specify the
parameters more than once. For elements inside of an ifnot element an
unspecified value for the k or v attribute is replaced by the values
from the outer ifnot rule. This means that either the outer ifnot
element or the inner element must specify both k and v attributes
between them. For nested if or ifnot elements the outer k and v
attributes are not inherited by the inner elements.
The set and unset elements either create or delete a tag from the input
data that was read from the file. If the set element is used and the
tag already exists then it is modified. The output element adds a tag
to the set that will be used by Routino to determine the data
properties.
The logerror element will cause an error message to be added to the
error log file that reports that the key and attribute combination are
not recognised. If the k attribute is specified but not the v attribute
then the tag value that matches the specified key is looked up and
used. An additional message attribute can be specified to be printed at
the end of the logged error.
The default logged error message is:
Node XXX has an unrecognised tag 'key' = 'value' (in tagging rules); ignoring it.
The specified message attribute will replace the final part of the
logged error.
Routing Profiles
----------------
The default name of the routing profiles XML configuration file is
profiles.xml in the same directory as the database files. Other
filenames can be specified on the command line using the --tagging
option.
The purpose of this configuration file is to allow easy modification of
the routing parameters so that they do not all need to be specified on
the command line. In versions of Routino before version 1.4 the default
routing parameters (preferred highways, preferred speeds etc) were
contained in the source code, now they are in a configuration file.
When calculating a route the --profile option selects the named profile
from the configuration file.
Part of the provided profiles.xml file showing the parameters for
transport on foot is shown below:
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Output Translations
-------------------
The default name of the output translations XML configuration file is
translations.xml in the same directory as the database files. Other
filenames can be specified on the command line using the --translations
option.
The generated HTML and GPX output files (described in the next section)
are created using the fragments of text that are defined in this file.
Additional languages can be added to the file and are selected using
the --language option to the router. If no language is specified the
first one in the file is used.
Part of the provided translations.xml file showing some of the English
language (en) translations is shown below:
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Copyright 2010-2013 Andrew M. Bishop.