[OSGeo Africa] Android GPS tracking on offline imagery

Immo Blecher immob19 at gmail.com
Mon May 22 00:19:09 PDT 2017


Hi Zoltan,

I have used OruxMaps for this purpose for many years now and it used to 
be free with a nagging "Donate" now and then. These days you can only 
donate and then install it. But it is amazing and a small prize to pay. 
It works perfectly with OpenAndroMaps but also supports online maps.

With the OruxMapsDesktop app you can then convert whatever images to the 
OruxMaps format...there are a couple of YouTubes and blogs available how 
to do that.

Locus Map is another popular alternative but you also have to use a few 
"tricks" to convert image files to a suitable format.

Regards

Immo


On 22/05/2017 08:44, Catchall wrote:
> Hi Walter,
> Amazing what one finds on their doorstep, hey? :-)
> You hit the nail on the head when you said "less travelled roads" and 
> "holiday" - that's exactly the reason I'd like to use it for.
>
> Cheers for now,
> Z
>
> On 2017/05/22 08:02, Walter Smit wrote:
>> Hi Zoltan
>>
>> I am amazed that Aslam has not already replied with "PDF 
>> Viewer"...NGI actively promotes it.
>>
>> Personally I have all the 250k topos on my tablet and also upload any 
>> 50k topos (tifs work fine) of areas that I want to go to. You can 
>> even make maps (with routes/point of interest etc and the background 
>> you prefer) in a GIS package of your choosing and provided that 
>> package can save a georeferenced PDF, you can then save that on the 
>> tablet. I have successfully used this on holiday, when driving along 
>> the "less travelled" roads - checking my location relative to the 
>> planned route and 50k topo images.
>>
>> You certainly can see you current location and I believe you can drop 
>> some pins. It is also free (last time I checked they wanted to sell 
>> you maps/data, which we don’t need). Scrolling is smooth on my 
>> tablet.I certainly would not recommend it as a spatial data capturing 
>> app, but it certainly is good as an informal tool.
>>
>> Negatives: It crashes often on my tablet, but only when I am doing 
>> uploads/processing. I don’t recall it crashing during actual use. 
>> Uploading many separate files/tifs is cumbersome. Get a good sized SD 
>> card...it duplicates your tifs into what I suspect are tiles and/or 
>> pyramids. It is picky about the types of tifs it consumes, but I 
>> cannot remember which...I suggest starting with uncompressed RGB images.
>>
>> Hope that helps
>> Walter
>>
>> -----Original Message-----
>> From: Africa [mailto:africa-bounces at lists.osgeo.org] On Behalf Of Zoltan
>> Sent: 21 May 2017 06:37 PM
>> To: Africa local chapter discussions
>> Subject: [OSGeo Africa] Android GPS tracking on offline imagery
>>
>> Hi AfricaList,
>> I see that there is a truckload of GIS related Apps in the Google 
>> Playstore.
>>
>> I've just bought the new Samsung Galaxy Tab S3 (latest Android) and 
>> would like to put some TIF format aerial orthos onto it, and view 
>> them "at my current location" (track while I drive).
>> Beyond that plus zoom in/out, the only functionality I might want is 
>> to drop a pin at current location, and add a short note to it.
>>
>> So, given this really basic, simple need, plus the billions of 
>> Android apps in the playstore, would anyone like to recommend a 
>> really lightweight app that I can do this with?
>>
>> Regards and thanks in advance,
>> Zoltan
>>
>>
>
>

-- 

*Immo F. Blecher**
Street: */52 Lynedoch Eco Village, Lynedoch, 7603, South Africa
//*Postal:*//52 Lynedoch Eco Village, Lynedoch, 7603, South Africa
//*Cell:*///+27 83 272 6791 |*Fax: *+27 86 7363302 
*Email:*_immo at blecher.co.za_ <mailto:immo at blecher.co.za> | 
_immob19 at gmail.com_ <mailto:immob19 at gmail.com>| _immob at mymtnmail.co.za 
<mailto:immob at mymtnmail.co.za>
_*Internet:*_http://www.blecher.co.za/_

Contact me: immob19 at gmail.com immoblecher

<http://www.linkedin.com/pub/immo-blecher/30/414/b8>

	

Please consider your environmental responsibility. Before printing this 
e-mail message, ask yourself whether you really need a hard copy.

IMPORTANT: The contents of this email and any attachments are 
confidential. They are intended for the named recipient(s) only. If you 
have received this email by mistake, please notify the sender 
immediately and do not disclose the contents to anyone or make copies 
thereof.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/7195ca5e/attachment.html>


More information about the Africa mailing list