[OSM-dev] Merkaator port to Android

Matthias Meißer digi_c at arcor.de
Fri Dec 2 21:01:52 GMT 2011

Yes it would be good to use existing source. But on the other hand 
Vespucci looks a bit overloaded to me.

Another nice smal approach is: 
So keeping the user interaction to a minimal in the field :)


Am 02.12.2011 20:26, schrieb Toby Murray:
> I would suggest looking at helping to improve Vesupcci. It already
> does several things mentioned here and I think a few other things are
> at least theoretically on the roadmap. It is certainly usable on my
> Samsung Galaxy S. Editing geometry is kind of tricky and I ususally
> end up going back in JOSM and fixing things after I upload from
> Vespucci. But I don't see many options to change that on a small touch
> screen. Tablets might work better. Having an "orthogonalize" button
> might be neat though. One outstanding feature request is to save to a
> file that you can open in JOSM and edit before uploading.
> It has tagging presets built in although they are not graphical... it
> just offers autocomplete suggestions for tag keys and values that it
> knows about. So you have to know which tag you want, it just helps you
> fill it in quicker. But it does have a button that will send you to
> the wiki for the selected key.
> It also guesses the road name when you add an addr:street tag. In my
> experience it does fairly well.
> It displays Bing imagery by default but has several other options.
> It even does some minimal validation - highlighting streets with no name.
> Toby
> 2011/12/2 Matthias Meißer<digi_c at arcor.de>:
>> Well I've got Merkaator running on my OpenPandora handhelt (Angstrome Linux)
>> and noticed that this kind of editors (let's call them GIS centred) isn't
>> what will work on mobile devices in the field.
>> I used osm2go as well and it's realy clother to my needs but is unfortunatly
>> abandoned and currently not that good for tapping devices. On the other
>> sides regular Smartphones are just to small (virtual keypad) so you might
>> need a real hardware keyboard as the Pandora offers, to add streetnames etc.
>> What in my opinion will work esp. on Tablets is:
>> -easy to use download data (select area on map, not entering them
>> numericaly)
>> -ultimate reduced UI (focused on adding more attributes and just POIs, not
>> for complex geometry, as this is best done with a mouse)
>> -mission schemas that customize the layout/workflow:
>> Let's say you want to add housenumbers, so you tap on the house. The editor
>> suggests the next road and already predicts the housenumber by what you
>> entered to house before).
>> Another usecase might be to add 3D featuers, where a wizzard presents you
>> different shapes of roofs, color table, ...
>> -ability to take georeferenced audio-notes, photos and embedd them
>> immediately
>> Yes a HTML5 might do the job and as Josh noticed, this will simplify the
>> deployment for mobile platforms. On the other hand I would really suggest
>> offline editing.
>> But this are just ideas...would be great if anybody would give it a try to
>> see if this might work :)
>> bye
>> Matthias
>> Am 02.12.2011 14:26, schrieb Josh Doe:
>>> On Fri, Dec 2, 2011 at 8:13 AM, Ian Dees<ian.dees at gmail.com>    wrote:
>>>> On Fri, Dec 2, 2011 at 6:56 AM, Jaak Laineste<jaak.laineste at gmail.com>
>>>> wrote:
>>>>> Hi,
>>>>>   as you may now, during GSoC QGIS was ported to Android tablets
>>>>> (http://hub.qgis.org/projects/quantum-gis/wiki/QGIS_Mobile_GSoC_2011).
>>>>> Merkaator has technically same base elements: Qt, GEOS, PROJ.4 etc, so
>>>>> based on this experience porting of Merkaator could be also possible
>>>>> with much smaller fuss. It should be even smaller work than getting
>>>>> JOSM working under Android.
>>>>>   Question: do you know anyone who really would need and use it?
>>>> Jaak,
>>>> Porting JOSM to Android would be an interesting academic task, but
>>>> several
>>>> problems lead me to believe it would not be useful for general use:
>>>> - java.awt is nowhere to be found on Android. JOSM's rendering engine
>>>> would
>>>> have to be completely re-written.
>>>> - javax.swing is nowhere to be found on Android. JOSM's UI system would
>>>> have
>>>> to be completely re-written.
>>>> - JOSM's UI is based on menus and keyboard shortcuts. These don't have
>>>> good
>>>> analogs in Android and would have to be re-thought.
>>>> I'd much rather see the time spent solving these problems put towards a
>>>> general purpose editor that is specifically designed for a tablet. Maybe
>>>> something general enough that an iOS and Android developer could use the
>>>> same design with platform-specific tweaks.
>>> All valid points, however it may be useful to reuse much of the
>>> non-GUI code for handling file loading, validation, search, etc. Or
>>> perhaps it may be more worthwhile to write a nice HTML5 app that can
>>> work on iOS, Android, and the web.
>>> I think the hardest thing is coming up with a design that works well
>>> on tablets. I think first and foremost it should offer a simple and
>>> robust way to edit POIs. A good preset system is a must (share with
>>> Potlatch2 or JOSM, don't create a new one!). Allow ways to be created
>>> both by tapping nodes and drawing (with simplification algorithm). And
>>> definitely have online and offline modes.
>>> I'd encourage you to create a wiki article to try and define what
>>> should go in to a tablet app.
>>> -Josh
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