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

From Alexandre de Menezes afmlistas at terra.com.br on Sun Jun 4 02:18:33 BST 2017

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,


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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