[Xastir] Xastir Digest, Vol 55, Issue 4

[Jerry Dunmire]

Hi,
I'm new to the group and new to the internals of xastir, but with the
TIGER/Online resource gone I've taken advantage of the open-source for
Xastir to see what I could do.

Google is a problem because their usage policy does not allow caching.
Several other standalone applications (viking comes to mind) have had
to stop using Google maps for just that reason.

OSM is possible. While IANAL, the Creative Commons license OSM is
using for the maps and map data appears to be compatible with xastir.
However, the CPU/network bandwidth for OSM is limited (at least
compared to Google) and they therefore have restrictions on the use of
their servers. I think xastir falls within those restrictions; see:
http://wiki.openstreetmap.org/wiki/Tile_usage_policy.

I have been trying to use the StaticMap
(http://wiki.openstreetmap.org/wiki/StaticMap) interface to OSM, with
some success. I have modeled the code on the map_tiger.c file and I am
successfully downloading and displaying OSM maps from within xastir.
However, I have had to hack the scaling because OSM has a limited
number of levels.

If anyone is interested, I would be happy to share my patches.

73,
...jerry
KA6HLD

On Tue, Jun 8, 2010 at 11:28 AM, Thomas Sprinzing <thomas at sprinzing.org> wrote:
>
> Am 08.06.2010 um 20:19 schrieb Dan Zubey:
>
>> There probably would be licensing issues with using google maps. If not,
>> wouldn't that be neat.
>>
>> However, I think the OSM people would be thrilled to have xastir use
>> their service.
>>
>> +1 for OSM support in Xastir.
>
> +1 from me as well.
>
> It's not that far away, you can download their stuff and show it already,
> but a proper dbfawk file is missing, though.
> So it doesn't display really nice.
>
> But it rocks when zooming in and out!
>
> So count my +1 for getting a decent dbfawk that can be understood by mere
> mortals...
>
> OSM was shunned some time back, when people claimed it wouldn't be correct
> and would show an offset to GPS.
> I don#t see it - at least for my home town:
>
> http://sautter.com/map/
>
> 73
>
> Thomas
>
> DL/VA3TSE
>
>>
>> -Dan n7nmd
>>
>> On Tue, 2010-06-08 at 08:43 -0400, Wes Johnston, AI4PX wrote:
>>>
>>> What about google maps?
>>>
>>> Wes
>>>
>>> On Tue, Jun 8, 2010 at 00:18, Alex Carver <kf4lvz at yahoo.com> wrote:
>>>
>>>> --- On Mon, 6/7/10, Andrew Errington <a.errington at lancaster.ac.uk>
>>>> wrote:
>>>>
>>>>> From: Andrew Errington <a.errington at lancaster.ac.uk>
>>>>> Subject: Re: [Xastir] Xastir Digest, Vol 55, Issue 4
>>>>> To: "Xastir - APRS client software discussion"
>>>>> <xastir at lists.xastir.org>
>>>>> Date: Monday, June 7, 2010, 8:22 PM
>>>>> On Tue, June 8, 2010 09:19, James
>>>>> Cameron wrote:
>>>>>>
>>>>>> On Mon, Jun 07, 2010 at 06:55:15PM -0500, Steve Rogers
>>>>>
>>>>> quoted:
>>>>>>
>>>>>>> Thank you for your inquiry. We have discontinued
>>>>>
>>>>> the
>>>>>>>
>>>>>>> Tiger Mapping Service as it has become outdated.
>>>>>>>
>>>>>>
>>>>>> So, lots of people relied on a legacy service and got
>>>>>
>>>>> bitten.  It shows
>>>>>>
>>>>>> how valuable open data sources can be.  Choose
>>>>>
>>>>> your next source based on
>>>>>>
>>>>>> how open it is, and what license it carries.
>>>>>
>>>>> We should seriously look at OSM (www.osm.org) as a backend
>>>>> map source for
>>>>> Xastir.
>>>>>
>>>>> I have mentioned it a couple of times here, and it
>>>>> surprises me that
>>>>> no-one seems to be in the least bit interested.
>>>>>
>>>>> How about it?
>>>>
>>>>
>>>> The TIGER data is open for the US which is probably why OSM doesn't get
>>>> much traction.  Only the online delivery system was discontinued.
>>>>  Xastir
>>>> can read the shapefiles directly, they just have to be downloaded and
>>>> stored
>>>> locally rather than generated on the fly from an online map generator.
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Xastir mailing list
>>>> Xastir at lists.xastir.org
>>>> http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
>>>>
>>>
>>>
>>>
>>
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