[mkgmap-dev] Altitude Units for Contours

Fri Nov 16 10:35:18 GMT 2012

Thomas and Michael,

Thank you for your suggestions. Both these contain elements which I have 
not met before - conv: and def:  - and which do not appear on the wiki 
page http://wiki.openstreetmap.org/wiki/Mkgmap/help/style_rules. Can you 
point me to somewhere where they are defined?

I have tested them both. Michael's suggestion (conv:) works and solves 
my problem. Mapsource obviously recognises contours explicitly, and 
converts the elevation and displays the units according to the 
preferences setting. It does not appear to do this for peaks.

With Thomas's suggestion (def:), Mapsource labels all the contours 
'Invalid Elevation'.

With many thanks,

Roger

On 15/11/2012 19:05, michael lohr wrote:
> this works for me:
>
> contour=elevation { name '${ele|conv:m=>ft}'}
>
>
> Am 15.11.2012 19:55, schrieb Thomas Kaschel:
>> Am 15.11.2012 14:43, schrieb Roger Calvert:
>>> Please can someone advise:
>>>
>>> I have an OSM file which contains contours with elevations in metres.
>>> Mapsource seems to interpret these as feet, and then, because I have its
>>> altitude setting in metres, converts them. So they all come out low by a
>>> factor of 3.3.
>>>
>>> Is there a way of adjusting for this in the style file?
>>>
>>> Thanks in advance,
>>>
>>> Roger
>>> --
>>> ------------------------------------------------------------------------
>>>
>>> Roger Calvert
>>> ------------------------------------------------------------------------
>>>
>>>
>> Hi Roger
>>
>> I had a similar problem with peaks. I've edited/added the following
>> lines in the points file.
>>
>> natural=peak & ele=* {name '${name|def:} (${ele|def:})' | '${name}' }
>> [0x6616 resolution 20]
>> natural=peak & ele!=* {name '${name|def:}' } [0x6616 resolution 20]
>>
>> Hope this helps.
>>
>>
>> Thomas
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>>
>
>
>
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-- 
------------------------------------------------------------------------

Roger Calvert
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