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I thought about geotagged images as Urlichs wrote and started yesterday
a simple implementation. It works alright, but I have to test it a
little bit more and then I will supply you with a patch.<br>
<br>
Timo<br>
<br>
Chris Browet wrote:
<blockquote
cite="mid:7ec79eed0808190232y3757eed3i526f8eb721deb448@mail.gmail.com"
type="cite">
<div dir="ltr">Ah OK, sorry for the semantic mistake. I'm interested
in things like GeoTiff which would allow to display some aerial photos
or maps in the background.<br>
<br>
Showing a photo of where the mapper has been is definitely something
totally different and probably easier to implement. Just the GUI for it
could be tricky.<br>
<br>
- Chris -<br>
<br>
<div class="gmail_quote">2008/8/19 Matthias Urlichs <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:smurf@smurf.noris.de">smurf@smurf.noris.de</a>></span><br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
<br>
[ geotagged images ]<br>
<br>
Chris Browet:<br>
<div class="Ih2E3d">> All I really need is a function taking as
input a GDAL supported file name<br>
> and as output a QPixmap and the lat/lon of its 4 corners.<br>
><br>
</div>
Uh, what? I think we're talking at cross prposes here.<br>
<br>
A geotagged image is a camera picture (JPEG usually) which contains<br>
geospatial coordinates in its metadata (EXIF) to locate the place (and,<br>
if known, direction) where the picture was taken. When mapping, I<br>
use these images to show where I've been (street names, work to be<br>
done); after a vacation, tagges pictures uploaded to Panoramio show up<br>
in Google Earth.<br>
<br>
GDAL is a library to create / convert vector and bitmap files which show<br>
maps. GDAL images cover a range of coordinates (hence four coordinates<br>
of the corners). They're calculated from map data or aerial photography.<br>
<br>
Different ideas entirely.<br>
<br>
What we're talking about is the first idea, "geotagged images".<br>
I fail to see why you'd want to use GDAL for that.<br>
<br>
GDAL support would be cool, too, but for entirely different reasons<br>
(I could use a high-res scan of a map as a background; that would be<br>
very helpful for mapping, assuming the map's copyright doesn't forbid<br>
this).<br>
<br>
--<br>
<font color="#888888">Matthias Urlichs | {M:U} IT Design @ <a
moz-do-not-send="true" href="http://m-u-it.de" target="_blank">m-u-it.de</a>
| <a moz-do-not-send="true" href="mailto:smurf@smurf.noris.de">smurf@smurf.noris.de</a><br>
Disclaimer: The quote was selected randomly. Really. | <a
moz-do-not-send="true" href="http://smurf.noris.de" target="_blank">http://smurf.noris.de</a><br>
- -<br>
Ozman's Laws:<br>
(1) If someone says he will do something "without fail," he
won't.<br>
(2) The more people talk on the phone, the less money they make.<br>
(3) People who go to conferences are the ones who shouldn't.<br>
(4) Pizza always burns the roof of your mouth.<br>
</font></blockquote>
</div>
<br>
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</blockquote>
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