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[mkgmap-dev] Commit r3968: merge the optimize-index branch. This fixes some problems with address search

From Carlos Dávila cdavilam at orangecorreo.es on Fri Jun 9 13:35:10 BST 2017

Just a comment, probably searching by full name is not needed for suffixes.

El 09/06/17 a las 10:57, Gerd Petermann escribió:
> Hi all,
> thanks for the suggestions. I think the patch provided by Carlos looks reasonable. If no one complains I'll
> commit it on Monday.
> Gerd
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Carlos Dávila <cdavilam at orangecorreo.es>
> Gesendet: Montag, 5. Juni 2017 21:05:54
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] Commit r3968: merge the optimize-index branch. This fixes some problems with address search
> First of all, a great thanks to Gerd for the lot of work behind this
> improvement to search functionality in mkgmap. That said, I think is
> would be convenient to keep the capability to search the original full
> name of roads when using road-name-config option, as many users tend to
> search it instead of main part of the name. Original Garmin maps are
> able to search both full name and main part.
> Attached is a first revision of roadNameConfig file which includes all
> Spanish speaking countries, suggestions from Stéphane and some
> alphabetical sorting.
> El 04/06/17 a las 09:15, Stéphane MARTIN escribió:
>> Hi,
>> For France I suggest:
>> -prefix1:fr = "Allée", "Chemin", "Avenue", "Rue", "Place"
>> +prefix1:fr = "Allée", "Chemin", "Avenue", "Rue", "Place", "Boulevard",
>> "Route"
>> For Guyana, is a new item necessary ?
>> +lang:GUY = en
>> Best regards.
>> Steph
>> Le 04/06/2017 à 03:18, Alexandre de Menezes a écrit :
>>> Hi Gerd,
>>> I have been testing the new features, and I have some suggestions for
>>> the sample file:
>>> 1) Spellcheck and new prefixes "Alameda"(means promenade) and
>>> "Beco"(means alley):
>>> -# portugese
>>> -prefix1:pt = "Rua", "Avenida", "Travessa"
>>> +# portuguese
>>> +prefix1:pt = "Rua", "Avenida", "Travessa", "Alameda", "Beco"
>>> prefix2:pt = "da ", "do ", "de ", "das ", "dos "
>>> 2) Add Brazil to the Portuguese speaking countries:
>>> +lang:BRA = pt
>>> lang:CAN = en, fr
>>> Best regards,
>>>       Alexandre
>>> On 02/06/2017 02:07, svn commit wrote:
>>>> Version mkgmap-r3968 was committed by gerd on Fri, 02 Jun 2017
>>>> merge the optimize-index branch. This fixes some problems with address
>>>> search
>>>> and adds new options which give control the content of the index. Also,
>>>> option split-name-index is no longer temporary.
>>>> New options:
>>>> --road-name-config=file
>>>>       This option handles the problem that some countries have road
>>>> names which
>>>>       often start or end with very similar words, e.g. in France the
>>>> first word
>>>>       is very often 'Rue', often followed by a preposition like 'de la'
>>>> or 'des'.
>>>>       This leads to rather long road names like 'Rue de la Concorde'
>>>> where only
>>>>       the word 'Concorde' is really interesting. In the USA, you often
>>>> have names
>>>>       like 'West Main Street' where only the word 'Main' is important.
>>>>       Garmin software has some tricks to handle this problem. It allows
>>>> to use
>>>>       special characters in the road labels which mark the beginning and
>>>> end of
>>>>       the important part. In combinarion with option split-name-index
>>>>       only the words in the important part are indexed.
>>>>       There are two different visiual effects of this option:
>>>>       - On the PC, when zooming out, the name 'Rue de la Concorde' is only
>>>>           rendered as 'Concorde'.
>>>>       - The index for road names only contains the important part of the
>>>> name.
>>>>           You can search for road name Conc to find road names like 'Rue
>>>> de la Concorde'.
>>>>           One problem: Search for 'Rue' will not list 'Rue de la Concorde'
>>>>           or 'Rue du Moulin'. It may list 'Rueben Brookins Road' if that
>>>> is in the map.
>>>>           Only MapSource shows a corresponding hint.
>>>>       Another effect is that the index is smaller.
>>>>       The option specifies the path to a file which gives the details. See
>>>>       comments in the sample roadNameConfig.txt for further details.
>>>>     --mdr7-excl
>>>>       This option allows to specify words which should not be in the
>>>> road index.
>>>>       It was added before option road-name-config and is probably no
>>>> longer needed.
>>>>       Example usage: --x-mdr7-excl="Road, Street, Straße, Weg"
>>>>     --mdr7-del
>>>>       Use this option if your style adds strings to the labels of roads
>>>> which you
>>>>       want to see in the map but which should not appear in the result list
>>>>       of a road name / address search. The list is used like this:
>>>>       For each road label mkgmap searches the last blank. If one is
>>>> found, it checks
>>>>       if the word after it appears in the given list. If so, the word is
>>>> removed
>>>>       and the search is repeated. The remaining string is used to create
>>>> the index.
>>>>       Example: Assume your style adds surface attributes like 'pav.' or
>>>> 'unp.' to a road
>>>>       label. You can use --mdr7-del="pav.,unp." to remove these
>>>> apendixes from the index.
>>>> --poi-excl-index
>>>>       By default, mkgmap indexes the following POI types with a
>>>> non-empty label:
>>>>       - 0x00 .. 0x0f (cities, sub type 0, type <= 0xf)
>>>>       - 0x2axx..0x30xx (Food & Drink, Lodging, ...)
>>>>       - 0x28xx (no category ?)
>>>>       - 0x64xx .. 0x66xx (attractions)
>>>>       This option allows to exclude POI types from the index.
>>>>       The exclueded types are not indexed, but may still be searchable
>>>> on a device
>>>>       as some devices seem to ignore most of the index, e.g. an Oregon
>>>> 600 with
>>>>       firmware 5.00 only seems to use it for city search.
>>>>       If you device finds a POI name like 'Planet' when you search for
>>>> 'Net'
>>>>       it doesn't use the index because the index created by mkgmap
>>>> cannot help for
>>>>       that search.
>>>>       So, this option may help when you care about the size of the index
>>>> or the
>>>>       memory that is needed to calculate it.
>>>>       The option expects a comma separated list of types or type ranges.
>>>> A range is
>>>>       given with from-type-to-type, e.g. 0x6400-0x6405. First and last
>>>> type are both
>>>>       excluded.A range can span multiple types, e.g. 0x6400-0x661f.
>>>>       Examples for usage:
>>>>       - Assume your style adds a POI with type 0x2800 for each
>>>> addr:housenumber.
>>>>           It is not useful to index those numbers, so you can use
>>>>           --poi-excl-index=0x2800
>>>>           to exclude this.
>>>>       - For the mentioned Oregon you may use --poi-excl-index=0x2a00-0x661f
>>>>           to reduce the index size.
>>>> http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3968

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