[mkgmap-dev] Re: [patch] add POIs to areas

Sun Feb 22 01:28:14 GMT 2009

I just realized that the last patch didn't include tests for the ray 
casting code. Please find the updated patch attached.

Cheers, Ben

Ben Konrath wrote:
> Hi,
> 
> A patch that will create a POI in various areas if they don't already 
> have one is attached. This is very useful for me here in Costa Rica 
> where most streets aren't named and addresses are given based on points 
> of references like buildings, parks, etc rather than street names.
> 
> This replaces Bernhard Heibler's patch from last week which does a 
> similar thing for only buildings. As with Bernhard's patch, if you want 
> a POI in a given area, you have to make sure that the style system will 
> create a Garmin polygon by putting a suitable line in 
> resources/styles/default/polygons.
> 
> POIs are only made for areas which I thought made sense. Here is the 
> code that describes the current mappings from Garmin polygon to Garmin 
> point:
> 
> +                       map.put(0x04, 0x640b); // Military
> +                       map.put(0x05, 0x2f0b); // Car Park
> +                       map.put(0x06, 0x2f0b); // Parking Garage
> +                       map.put(0x07, 0x2f04); // Airport
> +                       map.put(0x08, 0x2e04); // Shopping Centre
> +                       map.put(0x09, 0x2f09); // Marina
> +                       map.put(0x0a, 0x6410); // University
> +                       map.put(0x0b, 0x6408); // Hospital
> +                       map.put(0x13, 0x6400); // Man made area
> +                       map.put(0x17, 0x2c06); // City Park
> +                       map.put(0x18, 0x2d05); // Golf
> +                       map.put(0x19, 0x2c0a); // Sport
> +                       map.put(0x1a, 0x6403); // Cemetery
> 
> Please let me know if you think something is missing or wrong here.
> 
> The patch adds a new command line argument '--add-pois-to-areas' which 
> enables this feature. The only thing left to do is calculate a better 
> position for the POIs - currently they are placed in the centre of the 
> polygon but that doesn't work for cases like 'Museo Nacional de Costa 
> Rica' as shown here:
> 
> http://openstreetmap.org/?lat=9.932949&lon=-84.071649&zoom=18&layers=B000FTF 
> 
> 
> Comments and testing are appreciated.
> 
> Cheers, Ben
> 
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