[OSGeo Africa] Android GPS tracking on offline imagery

Walter Smit Walter.Smit at drdlr.gov.za
Mon May 22 02:54:56 PDT 2017


Hi all

The app I mentioned earlier seems to have been rebranded as Avenza Maps.

Regards
Walter

From: Africa [mailto:africa-bounces at lists.osgeo.org] On Behalf Of Zoltan
Sent: 22 May 2017 09:45 AM
To: Immo Blecher; Africa local chapter discussions
Subject: Re: [OSGeo Africa] Android GPS tracking on offline imagery

Hi Immo,
Thanks for this. Will take a look.

Regards,
Zoltan
On 2017/05/22 09:19, Immo Blecher wrote:

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: [Image removed by sender.] immob19 at gmail.com<mailto:immob19 at gmail.com> [Image removed by sender.] immoblecher

[Image removed by sender.]<http://www.linkedin.com/pub/immo-blecher/30/414/b8>

[Image removed by sender.]


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.





--



===========================================

Zoltan Szecsei PrGISc [PGP0031]

Geograph (Pty) Ltd.

GIS and Photogrammetric Services



P.O. Box 7, Muizenberg 7950, South Africa.



Mobile: +27-83-6004028

Fax:    +27-86-6115323     www.geograph.co.za<http://www.geograph.co.za>

===========================================
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/4199034c/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 335 bytes
Desc: image001.jpg
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/4199034c/attachment-0004.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 407 bytes
Desc: image002.jpg
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/4199034c/attachment-0005.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 344 bytes
Desc: image003.jpg
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/4199034c/attachment-0006.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.jpg
Type: image/jpeg
Size: 332 bytes
Desc: image004.jpg
URL: <http://lists.osgeo.org/pipermail/africa/attachments/20170522/4199034c/attachment-0007.jpg>


More information about the Africa mailing list