[mkgmap-dev] Spurious points & Basecamp blank tiles

Fri Nov 11 09:47:39 GMT 2016

Hi Teemu,

Maybe I have a fix for this. We have special code in mkgmap for
POI with type >= 0x0100 && type <= 0x1100, they are considered to be cities
and those are special.
With the attached patch only those with subtype = 0 are:
type >= 0x0100 && type <= 0x1100 && (type & 0xff) == 0

This seems to fix the problem, but maybe it is only a workaround.
Another observation: The MP file gives a label for each of these 0x1001 POI,
the pbf file doesn't.

A binary based on r3701 is here:
http://files.mkgmap.org.uk/download/312/mkgmap.jar

type_0x1001.patch
<http://gis.19327.n8.nabble.com/file/n5885745/type_0x1001.patch>  

Gerd

Teemu Peltonen wrote
> Hi,
> 
> http://kartat.hylly.org/mkgmap/M431_cgpsmapper.img is created with 
> cGPSmapper and contains point type 0x1001 (among other rather exotic 
> types) without problems. Polish map file used to generate this file can 
> be found from http://kartat.hylly.org/mkgmap/M431.7z.
> 
> It also looks like that these artifacts does not exists when the img is 
> created from a pbf file containing no actual OSM data. Map generated 
> from http://kartat.hylly.org/mkgmap/M431.osm.pbf with the same style 
> definitions works perfectly fine. 0x1001 points are, however missing so 
> they might definitely be part of the problem. The only difference 
> between M431_osm.osm.pbf (from the original post )and M431.osm.pbf is 
> that OSM data is merged to M431_osm.osm.pbf with osmconvert.
> 
> -Teemu
> 
> 9.11.2016, 13:40, Gerd Petermann kirjoitti:
>> Hi Teemu,
>>
>> please provide a link to a small map with an 0x1001 type created with
>> cGPSmapper. Maybe we can learn from that.
>>
>> Gerd
>>
>>
>> Teemu Peltonen wrote
>>> Hi,
>>>
>>> those same types worked with cGPSmapper without a problem. Thank you for
>>> this insight, I'll try to change types and see what happens.
>>>
>>> -Teemu
>>>
>>> On Wed, Nov 9, 2016 at 12:31 PM, Andrzej Popowski <
>>> popej at .onet
>>> >
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I have once created a test map for all possible objects, using
>>>> cGPSmapper.
>>>> I have found, that some objects are problematic. I don't remember
>>>> details,
>>>> but I think sometimes map doesn't work at all.
>>>>
>>>> My current set of good points exclude 0x1001. Actually I think that for
>>>> types 0x01xx to 0x11xx only subtype 0 is accepted. And some POI types
>>>> doesn't work at all, for example 12xx, 13xx, 31xx-3fxx.
>>>>
>>>> I don't know if this is a problem of Garmin devices or cGPSmapper.
>>>>
>>>> --
>>>> Best regards,
>>>> Andrzej
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> mkgmap-dev mailing list
>>>>
>>> mkgmap-dev at .org
>>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>>
>>> _______________________________________________
>>> mkgmap-dev mailing list
>>> mkgmap-dev at .org
>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://gis.19327.n8.nabble.com/Spurious-points-Basecamp-blank-tiles-tp5885434p5885635.html
>> Sent from the Mkgmap Development mailing list archive at Nabble.com.
>> _______________________________________________
>> mkgmap-dev mailing list
>> 

> mkgmap-dev at .org

>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> 
> 
> _______________________________________________
> mkgmap-dev mailing list

> mkgmap-dev at .org

> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev

--
View this message in context: http://gis.19327.n8.nabble.com/Spurious-points-Basecamp-blank-tiles-tp5885434p5885745.html
Sent from the Mkgmap Development mailing list archive at Nabble.com.