Re: Obtaining a very simply base map

[Alexander Menk]

Hi Harry,

Am 08.02.2017 2:03 nachm. schrieb "Harry van der Wolf" :

> What I've done earlier is making a "world map" of Western Europe, which is
> where I drive. That makes a substantially smaller map but still much bigger
> than your preferred size.
> When you are talking about bad and expensive internet I assume that that
> is either South-America or Africa.
> Those maps are much smaller anyway compared to North-America and
> especially Europe.
>
> So for which region is it?
>
>
Mainly Ethiopia. I integrate the map of Ethiopia which is around 50 MB.. No
if you zoom out or GPS is not yet ready, you are lost in empty space. For
this reason I would like to have a very simple world-basemap, just so that
the screen is not empty. Would also be interesting to be distributed with
the standard OsmAnd i suppose ...

Alex

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Re: Obtaining a very simply base map

[Harry van der Wolf]

What I've done earlier is making a "world map" of Western Europe, which is
where I drive. That makes a substantially smaller map but still much bigger
than your preferred size.
When you are talking about bad and expensive internet I assume that that is
either South-America or Africa.
Those maps are much smaller anyway compared to North-America and especially
Europe.

So for which region is it?

Harry

2017-02-07 20:27 GMT+01:00 Alexander Menk :

> Hi
>
> Thanks for the explanation and  also the warning. I simply do not want to
> start Osmand so empty and leave the user without and points of orientation
> when no basemap is downloaded. I am targeting a country with very bad and
> expensive Internet connectivity.
>
> Alex
>
> Am 07.02.2017 8:16 nachm. schrieb "Harry van der Wolf"  >:
>
>> There is not 1 script doing that. It is a combination of scripts using
>> several files merging them in a world map.
>> There is definitely not a step-by-step tutorial.
>>
>> You can take a look in the OsmAnd tools repository in the obf-generation:
>> https://github.com/osmandapp/OsmAnd-tools/tree/master/obf-generation
>> Check the basemap folder. The scripts are using the data from natural
>> earth: http://www.naturalearthdata.com/downloads/110m-physical-vectors/
>>
>> But short answer: Don't bother to try. If you take the lowest resolution
>> files (1:110m physical vectors), it will take you hours and hours
>> manipulating data. If you want coast-lines, country borders, oceans and
>> physical labels (country and major city names), you will not be able to
>> stay below 1M. I guess you will be in the 3-5M size range.
>>
>> Adding lakes and rivers will only slightly increase it.
>> Adding roads will rapidly increase it. Adding even the biggest
>> "green"/city/etc/ polygons will hugely increase it.
>>
>> Again:  Don't bother to try. Why do you care about a 260MB world-map as
>> so many country maps are way bigger than that one world map.
>>
>> Harry
>>
>>
>> 2017-02-07 19:33 GMT+01:00 'Stephan75' via Osmand <
>> osmand@googlegroups.com>:
>>
>>> Hi,
>>>
>>> I am not sure about a step-by-step tutorial,
>>>
>>> but you can try to search for "worldmap" on this googlegroup ... maybe
>>> some hints are already available.
>>>
>>> Stephan
>>>
>>>
>>> Am Montag, 6. Februar 2017 22:02:29 UTC+1 schrieb Alex:

 Hi,

 I need a simply world basemap - but in much smaller size then the
 standard one.

 Now I am wondering what is the generation script for the current base
 map? Is this publicly available so I can base on it?

 I am targeting a size of around 250 KB - 1 MB - i.e. very rough country
 borders and the country names, maybe additionally the capitals.

 Alex

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>>
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Re: Obtaining a very simply base map

[Harry van der Wolf]

There is not 1 script doing that. It is a combination of scripts using
several files merging them in a world map.
There is definitely not a step-by-step tutorial.

You can take a look in the OsmAnd tools repository in the obf-generation:
https://github.com/osmandapp/OsmAnd-tools/tree/master/obf-generation
Check the basemap folder. The scripts are using the data from natural
earth: http://www.naturalearthdata.com/downloads/110m-physical-vectors/

But short answer: Don't bother to try. If you take the lowest resolution
files (1:110m physical vectors), it will take you hours and hours
manipulating data. If you want coast-lines, country borders, oceans and
physical labels (country and major city names), you will not be able to
stay below 1M. I guess you will be in the 3-5M size range.

Adding lakes and rivers will only slightly increase it.
Adding roads will rapidly increase it. Adding even the biggest
"green"/city/etc/ polygons will hugely increase it.

Again:  Don't bother to try. Why do you care about a 260MB world-map as so
many country maps are way bigger than that one world map.

Harry


2017-02-07 19:33 GMT+01:00 'Stephan75' via Osmand :

> Hi,
>
> I am not sure about a step-by-step tutorial,
>
> but you can try to search for "worldmap" on this googlegroup ... maybe
> some hints are already available.
>
> Stephan
>
>
> Am Montag, 6. Februar 2017 22:02:29 UTC+1 schrieb Alex:
>>
>> Hi,
>>
>> I need a simply world basemap - but in much smaller size then the
>> standard one.
>>
>> Now I am wondering what is the generation script for the current base
>> map? Is this publicly available so I can base on it?
>>
>> I am targeting a size of around 250 KB - 1 MB - i.e. very rough country
>> borders and the country names, maybe additionally the capitals.
>>
>> Alex
>>
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Re: Obtaining a very simply base map

['Stephan75' via Osmand]

Hi,

I am not sure about a step-by-step tutorial,

but you can try to search for "worldmap" on this googlegroup ... maybe some 
hints are already available.

Stephan

Am Montag, 6. Februar 2017 22:02:29 UTC+1 schrieb Alex:
>
> Hi,
>
> I need a simply world basemap - but in much smaller size then the standard 
> one.
>
> Now I am wondering what is the generation script for the current base map? 
> Is this publicly available so I can base on it?
>
> I am targeting a size of around 250 KB - 1 MB - i.e. very rough country 
> borders and the country names, maybe additionally the capitals.
>
> Alex
>

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Obtaining a very simply base map

[Alex]

Hi,

I need a simply world basemap - but in much smaller size then the standard 
one.

Now I am wondering what is the generation script for the current base map? 
Is this publicly available so I can base on it?

I am targeting a size of around 250 KB - 1 MB - i.e. very rough country 
borders and the country names, maybe additionally the capitals.

Alex

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