[mkgmap-dev] Feature Request: mkgmap able to create gmap archive (BaseCamp)

Sun Dec 4 10:58:29 GMT 2016

Hi, thanks for testing. I believe you can ignore that error.

On 4 December 2016 10:38:27 GMT+00:00, Patrik Brunner <patrik.brunner at gmx.net> wrote:
>thomas,
>
>thanks for the explanation.
>
>Source files (map itself and typ files) handed over to gmapi-builder.py
>
>have just been created one step before by mkgmap.
>
>I've just made the same process with another Perimeter, Switzerland,
>and 
>the same thing happens.
>
>But as stated originally: I'm not sure how bad this error is as:
>
>  * the image directory with these tbd file is useable in BaseCamp
>  * the created gmap directory is usable in BaseCamp
>  * the created gmapsupp.img out of the same source files is usable too
>
>Either a misinterpretation of gmapi-builder.py or something which is 
>handled wrongly in mkgmap, but as it appears without doing too much
>damage.
>But that's just a rough guess from what I see from the outside..... I'm
>
>the wrong person to track that down to the root cause.
>
>But I'm always willing and able to test and provide results.
>
>Cheers
>Patrik
>
>On 04.12.2016 11:13, Thomas Morgenstern wrote:
>>
>> In tdb file exists such block 0x54. And it must have 20 byte. in your
>
>> example i see only 18 byte ? Block 0x54 contains  CRC sum of the tdb 
>> file ( without the 0x54 block) the crc is stored in byte 0x54+5, 
>> 0x54+12, 0x54+15, 0x54+20.
>>
>> 0x54+5=Int(nCRCSum / 16777216)  'vByteD
>>
>> 0x54+12=Int((nCRCSum - vByteD * 16777216) / 65536) ' vByteC
>>
>> 0x54+15=Int((nCRCSum - vByteD * 16777216 - vByteC * 65536) / 256)    
>> 'vByteB
>>
>> 0x54+20=Int(nCRCSum - vByteD * 16777216 - vByteC * 65536 - vByteB *
>256)
>>
>> all other bytes=0
>>
>> thomas
>>
>>
>> Am 04.12.2016 um 10:40 schrieb Patrik Brunner:
>>> Steve,
>>>
>>> I've downloaded both versions of gmapi-builder.py, the one from 
>>> bitbucket and the one from the mkgmap code base. They're bit 
>>> different and I couldn't find a version number when checking
>quickly, 
>>> but only the mkgmap version supports -i for mdx files. Therefore I 
>>> continued with the mkgmap codebase version only.
>>>
>>> The tool runs through and creates a loadable gmap directory for 
>>> BaseCamp (tested only on Windows).
>>>
>>> But it also give out an 'error' or 'warning' about an unknown block,
>
>>> possibly to be checked further when implementing in mkgmap:
>>>
>>>     Unknown Block: 54, length: 20,
>>>    
>'\x00\x00\xf7\x00\x00\x00\x00\x00\x00j\x00\x00\x99\x00\x00\x00\x00`\x00\x00'
>>>
>>> Attached the complete command output ran with -v.... please ignore 
>>> the copyright/license output... the strange content is testing stuff
>
>>> from another construction area, as you know... license information 
>>> and unicode  ;-)
>>>
>>> Testing inside this construction area will be next on my list for 
>>> today...
>>>
>>> Thanks and regards
>>> Patrik
>>>
>>> On 03.12.2016 23:26, Steve Ratcliffe wrote:
>>>> Hi
>>>>
>>>>> I'm wondering if it would be possible that mkgmap is able to
>>>>> create/convert maps also in the gmap (gmapi) format used for 
>>>>> BaseCamp on
>>>>> Windows and Macintosh.
>>>>
>>>> Yes, this seems a reasonable thing to do.
>>>>
>>>> In the mkgmap code base there is a python program called
>>>> gmapi-builder.py in the scripts directory.
>>>>
>>>> See also https://bitbucket.org/berteun/gmapibuilder/overview
>>>> and http://wiki.openstreetmap.org/wiki/Gmapibuilder.
>>>>
>>>> This is a converter, but should work on all platforms with python
>>>> installed, or could be made to do so...
>>>> The first step is to verify that it works; then it should
>>>> be easy enough to implement within mkgmap itself.
>>>>
>>>> ..Steve
>>>> _______________________________________________
>>>> mkgmap-dev mailing list
>>>> mkgmap-dev at lists.mkgmap.org.uk
>>>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>>>
>>>
>>>
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>>> mkgmap-dev at lists.mkgmap.org.uk
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>>
>>
>>
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>
>
>
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