<div dir="ltr">Hi, Torsten!<br><br>I think Yanns suggestion more or less point me in the right direction for creating my map/map-overlay... although I am not feeling like it is going to be exceedingly easy (for me at least). I suspect it will take a great deal of work to take the hugely detailed map Yann recommended and turn it into something that looks good too.<br>
<br>Your tutorial on making Marble maps is great though! Once I actually have a map, I believe I shall try. ;-) I suspect I will learn all sorts of things throughout this little cartographic adventure of mine that I may never use again--but let that be my greatest worry, and I shall surely die a happy man!<br>
<br>Would you or Yann be able to recommend me a good (and novice-targeted... nay, total beginner targeted) GIS tutorial?<br><br>Sincerely,<br><br>Danuvius<br><br><br><div class="gmail_quote">On Mon, Oct 6, 2008 at 12:43 PM, Torsten Rahn <span dir="ltr"><<a href="mailto:rahn@kde.org">rahn@kde.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
Hi,<br>
<div class="Ih2E3d"><br>
On Monday 06 October 2008 05:26:42 Danuvius wrote:<br>
> Greetings, lofty KDE Marble Devs!<br>
><br>
> Can anybody advise me on how I could programmatically create an overlay (to<br>
> work with Marble) consisting of a 10 km "coastal band"?<br>
<br>
</div>Not easily. We are right now working on getting KML Polygons working in SVN.<br>
That way it should become possible to create a KML outline / semitransparent<br>
polygon. However of course you'd need to generate the vector polygons somehow<br>
yourself.<br>
<br>
I'd also like to add bitmap overlays but I guess we won't be able to deliver<br>
that feature for KDE 4.2. :-(<br>
<div class="Ih2E3d"><br>
> Basically I want to highlight--as precisely as can be done--all land that<br>
> is less than 10 km from the ocean or ocean-connected seas. (Basically the<br>
> two "inland" Asian seas do not count, nor do lakes and rivers.) Doing this<br>
> with a flat map is difficult enough (although I have done it)...<br>
<br>
</div>Well, how have you done it before? Using bitmaps?<br>
<div class="Ih2E3d"><br>
> If this is basically impossible, can somebody suggest some way to achieve<br>
> the same ends? Arguably an impractically huge (highest resolution Blue<br>
> Marble size) political map would do the trick. I already have a Python<br>
> program that can create such a highlight layer from a properly preprocessed<br>
> Robinson projection map. But as far as I can tell, sufficiently high<br>
<br>
</div>Well the "default" source projection for bitmaps is plate carree / the<br>
equirectangular projection.<br>
<br>
If you haven't done so you might want to have a look at my blog series which<br>
might serve as a technical introduction to Marble:<br>
<br>
<a href="http://www.kdedevelopers.org/node/3269" target="_blank">http://www.kdedevelopers.org/node/3269</a><br>
<a href="http://www.kdedevelopers.org/node/3272" target="_blank">http://www.kdedevelopers.org/node/3272</a><br>
<a href="http://www.kdedevelopers.org/node/3275" target="_blank">http://www.kdedevelopers.org/node/3275</a><br>
<br>
(however I'm not sure whether it's useful for your question)<br>
<br>
Regards,<br>
<font color="#888888"><br>
Torsten<br>
</font><div class="Ih2E3d"><br>
> resolution political maps don't exist outside of Marble, Google Maps/Earth,<br>
> NASA's Worldwind and similar programs.<br>
><br>
> I would be immensely grateful if somebody could point me in the right<br>
> direction.<br>
><br>
> Respectfully,<br>
><br>
> Danuvius<br>
<br>
<br>
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