[mkgmap-dev] overlays file for POIs

Mon Jan 18 14:00:06 GMT 2010

On 18.01.2010 14:48, Marko Mäkelä wrote:
> Hi Felix,
>
> On Mon, Jan 18, 2010 at 02:19:45PM +0100, Felix Hartmann wrote:
>    
>> Actually I found two ways how to make it work. Sometimes the mkgmap
>> style-file code allows so many nice workarounds. :-)
>>
>> *a)* the odd way
>> rcn_ref=*&  rcn_ref=10    { name '${rcn_ref}' } [0x01701 resolution 22
>> continue]
>> rcn_ref=10                        { name '${rcn_ref}' } [0x01800
>> resolution 22]
>>
>> *b)* the logic way (which can be used for even more than 2 symbols) -
>>      
> Why couldn't the odd way be used for several symbols?
>    
Well, it will only once be considered as different.
example:
rcn_ref=* & rcn_ref=10 [0x01 resolution 24 continue]
rcn_ref=10 [0x02 resolution 24 continue]
rcn_ref=10 [0x03 resolution 24] --- is identical to the line above and 
will not work.
> Would having multiple rcn_ref=*&  at the start of the rule help?
>    
That could well be possible. I have not tried it.
> Why do you need the rcn_ref=*&  anyway?  Shouldn't the continue
> do the trick already?
>    
No, the trick is not working, as the you cannot run "continue" for 
asking the same value twice. The idea of continue was more that if you 
have a single node tagged amenity=restaurant & amenity=hotel that 
neither is dropped (so you find both via the search function), or that 
if a line is tagged higwhay=residential & railway=rail both will be 
rendered/included in the map.
> Ultimately, I would like to see something like this:
>
> (rcn_ref % 100 / 100) = 1 [symbol for '1__' continue]
> (rcn_ref % 10 / 10) = 1 [ symbol for '_1_' continue]
> (rcn_ref % 10) = 1 [ symbol for '__1' ]
>
> You might need to prefix these rules with rcn_ref=*.
>    
Well that would be nicer. If you integrate these regex operators, maybe 
you could come up with a conversion for units (mph --> kph) too. It 
would be enough if:
distance=125miles could be seperated into distance=125 
distance:unit=miles for further processing.
> Removing leading zeros would take some further conditions, something
> like this:
>
> rcn_ref>  9&  (rcn_ref % 10 / 10) = 0 [ symbol for '_0_' continue]
>
> and (if we are to support rcn_ref>  999)
>
> rcn_ref>  99&  (rcn_ref % 100 / 100) = 0 [ symbol for '0__' continue]
>
> Currently, the parser does not support arithmetic operators such
> as /, %, *, +, -.  Integer arithmetics should be easy implement.
>    

Currently I have the following in my style-file for this (I will change 
it around a bit, for better searchability, and effectively create 3 POI 
out of each node (by set mkgmap:rcn_ref=...; set mkgmap:1rcn_ref=....; 
name...} I just have to search for matching IDs). I will experiment a 
bit with deleting the name key too.

rcn_ref=* & rcn_ref > 89 & rcn_ref < 100 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}'} [0x01709 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 79 & rcn_ref < 90 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01708 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 69 & rcn_ref < 80 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01707 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 59 & rcn_ref < 70 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01706 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 49 & rcn_ref < 60 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01705 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 39 & rcn_ref < 50 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01704 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 29 & rcn_ref < 40 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01703 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 19 & rcn_ref < 30 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01702 resolution 21 
continue with_actions]
rcn_ref=* & rcn_ref > 9 & rcn_ref < 20 { set 
mkgmap:rcn_ref='${rcn_ref}'; name '${rcn_ref}' } [0x01701 resolution 21 
continue with_actions]

mkgmap:rcn_ref=10 | mkgmap:rcn_ref=20 | mkgmap:rcn_ref=30 | 
mkgmap:rcn_ref=40 | mkgmap:rcn_ref=50 | mkgmap:rcn_ref=60 | 
mkgmap:rcn_ref=70 | mkgmap:rcn_ref=80 | mkgmap:rcn_ref=90 { name 
'${rcn_ref}' } [0x01800 resolution 21]
mkgmap:rcn_ref=11 | mkgmap:rcn_ref=21 | mkgmap:rcn_ref=31 | 
mkgmap:rcn_ref=41 | mkgmap:rcn_ref=51 | mkgmap:rcn_ref=61 | 
mkgmap:rcn_ref=71 | mkgmap:rcn_ref=81 | mkgmap:rcn_ref=91 { name 
'${rcn_ref}' } [0x01801 resolution 21]
mkgmap:rcn_ref=12 | mkgmap:rcn_ref=22 | mkgmap:rcn_ref=32 | 
mkgmap:rcn_ref=42 | mkgmap:rcn_ref=52 | mkgmap:rcn_ref=62 | 
mkgmap:rcn_ref=72 | mkgmap:rcn_ref=82 | mkgmap:rcn_ref=92 { name 
'${rcn_ref}' } [0x01802 resolution 21]
mkgmap:rcn_ref=13 | mkgmap:rcn_ref=23 | mkgmap:rcn_ref=33 | 
mkgmap:rcn_ref=43 | mkgmap:rcn_ref=53 | mkgmap:rcn_ref=63 | 
mkgmap:rcn_ref=73 | mkgmap:rcn_ref=83 | mkgmap:rcn_ref=93 { name 
'${rcn_ref}' } [0x01803 resolution 21]
mkgmap:rcn_ref=14 | mkgmap:rcn_ref=24 | mkgmap:rcn_ref=34 | 
mkgmap:rcn_ref=44 | mkgmap:rcn_ref=54 | mkgmap:rcn_ref=64 | 
mkgmap:rcn_ref=74 | mkgmap:rcn_ref=84 | mkgmap:rcn_ref=94 { name 
'${rcn_ref}' } [0x01804 resolution 21]
mkgmap:rcn_ref=15 | mkgmap:rcn_ref=25 | mkgmap:rcn_ref=35 | 
mkgmap:rcn_ref=45 | mkgmap:rcn_ref=55 | mkgmap:rcn_ref=65 | 
mkgmap:rcn_ref=75 | mkgmap:rcn_ref=85 | mkgmap:rcn_ref=95 { name 
'${rcn_ref}' } [0x01805 resolution 21]
mkgmap:rcn_ref=16 | mkgmap:rcn_ref=26 | mkgmap:rcn_ref=36 | 
mkgmap:rcn_ref=46 | mkgmap:rcn_ref=56 | mkgmap:rcn_ref=66 | 
mkgmap:rcn_ref=76 | mkgmap:rcn_ref=86 | mkgmap:rcn_ref=96 { name 
'${rcn_ref}' } [0x01806 resolution 21]
mkgmap:rcn_ref=17 | mkgmap:rcn_ref=27 | mkgmap:rcn_ref=37 | 
mkgmap:rcn_ref=47 | mkgmap:rcn_ref=57 | mkgmap:rcn_ref=67 | 
mkgmap:rcn_ref=77 | mkgmap:rcn_ref=87 | mkgmap:rcn_ref=97 { name 
'${rcn_ref}' } [0x01807 resolution 21]
mkgmap:rcn_ref=18 | mkgmap:rcn_ref=28 | mkgmap:rcn_ref=38 | 
mkgmap:rcn_ref=48 | mkgmap:rcn_ref=58 | mkgmap:rcn_ref=68 | 
mkgmap:rcn_ref=78 | mkgmap:rcn_ref=88 | mkgmap:rcn_ref=98 { name 
'${rcn_ref}' } [0x01808 resolution 21]
mkgmap:rcn_ref=19 | mkgmap:rcn_ref=29 | mkgmap:rcn_ref=39 | 
mkgmap:rcn_ref=49 | mkgmap:rcn_ref=59 | mkgmap:rcn_ref=69 | 
mkgmap:rcn_ref=79 | mkgmap:rcn_ref=89 | mkgmap:rcn_ref=99 { name 
'${rcn_ref}' } [0x01809 resolution 21]
> 	Marko
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