[mkgmap-dev] [PATCH v1] - Do not write unnecessary POI information

Sun Apr 18 09:46:39 BST 2010

The attached patch will prevent writing the additional POI information (address, phone number) if
- it won't be shown (POIs with IDs 0x64xx to 0x66xx won't have their information shown)
- there is no street given for that POI

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This reduces the size of the map by about 5% for my map (with a lot of POIs actually generated in the range 0x64xx to 0x66xx).

It may be questionable to write no address information if there is no street given. IMHO though, what I want to have from that additional information is the street address. I can see on the map in which city and region the POI is in and in most cases I can also see the distance to my current location. So if I don't have at least a street name the information about the city and region alone (which is most likely autogenerated and therefore error-prone anyway) doesn't help. For my maps the additional size reduction of this is less than 1 % (which I don't understand BTW, should be more).

I'm not sure about the ID range 0x64xx to 0x66xx - has anybody tested this and knows whether there are additional IDs that won't have their information shown?

Regards
Thilo