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<div dir="ltr">On 2014-12-28 22:55, Jo wrote :<br>
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<div class="gmail_quote">2014-12-28 21:39 GMT+01:00 André Pirard
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:A.Pirard.Papou@gmail.com" target="_blank">A.Pirard.Papou@gmail.com</a>></span>:<br>
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<div>On 2014-12-28 18:30, Jo wrote :<br>
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<div>This is long overdue, but I finally got
round to it. I added a page<br>
<br>
<a moz-do-not-send="true"
href="https://josm.openstreetmap.de/wiki/Maps/Belgium"
target="_blank">https://josm.openstreetmap.de/wiki/Maps/Belgium</a><br>
<br>
with WMS sources for Belgium, for which we
have permission to use.<br>
<br>
So now there are 3 more entries on this page:<br>
<br>
<a moz-do-not-send="true"
href="https://josm.openstreetmap.de/wiki/Maps"
target="_blank">https://josm.openstreetmap.de/wiki/Maps</a><br>
<br>
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The resolutions are all better than Bing. They
are also more recent.<br>
<br>
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Is there somebody who knows a convenient way to
add those coordinates, so a shape is shown?<br>
<br>
AGIV also has coverage for Brussels, The Walloon
imagery also covers the German speaking part of
Belgium.<br>
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</span> Well done, Jo. The only thing to do is now:<br>
JOSM>Imagery>Imagery Preferences[<img
moz-do-not-send="true" alt=""
src="http://www.iconpng.com/png/toolbar-icons0110/refresh.png"
width="18" height="18">]>Available...>select
BE...>Activate<span class=""><br>
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<div>Indeed, you have to refresh your list of Imagery in JOSM
to see that these are available now.<br>
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<div>I don't know much about projections, but
EPSG:4326 seems to work just fine for all three.<br>
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</span> Projections are simple: a mathematical
transformation of the Earth surface to draw it on a plane
(screen).<br>
EPSG:4326 uses the GPS coordinates (degrees) linearly (d °
NS/EW = c cm vertically/horizontally).<br>
Cylindrical is the projection as if by light beams
perpendicular to the Earth axis.<br>
Mercator is the same but with a vertical correction so
that the polar regions are not flattened.<br>
These 3 are quickly transformed one to another with little
CPU.<br>
Hence, JOSM, which normally uses Mercator on screen, can
convert any to its screen projection.<br>
<br>
The (Belgian) cartographers use Lambert projections which
is similar to cylindrical, but on a cone that is tangent
to a line going across their country (Belgium). This is
so that the proportions of the distances are the same
vertically and horizontally. The Belgian servers serve
them too. In addition to EPSG:4326. Except SPW (<span><span>
;-) </span></span>).<span class=""><br>
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<blockquote type="cite">Thank you. I still don't fully understand, I
merely grasp the concept somewhat... I don't believe I'll ever
call them 'simple' though.<br>
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Maybe the SPW too? <span class="moz-smiley-s3"><span> ;-) </span></span><br>
One needs pictures. This, maybe (jgetoppositelng(); Dutch
available (opposite???!!!))<br>
<a class="moz-txt-link-freetext" href="http://www.ngi.be/FR/FR2-1-4.shtm">http://www.ngi.be/FR/FR2-1-4.shtm</a><br>
<a class="moz-txt-link-freetext" href="http://www.ngi.be/FR/FR2-1-7.shtm">http://www.ngi.be/FR/FR2-1-7.shtm</a><br>
<a class="moz-txt-link-freetext" href="http://www.ngi.be/FR/FR2-1-6.shtm">http://www.ngi.be/FR/FR2-1-6.shtm</a><br>
Wikipedia<br>
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<div>Feel free to improve/extend that wiki page,
if you can.<br>
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</span> I would add Wallonia 2009. It is sometimes
useful (e.g. to get rid of trees).<br>
Is it just a matter of editing the file? Have to
refresh the server?<br>
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<div>You edit the wiki page, the rest is done behind the
scenes. I guess everybody has to refresh their list of
imagery to see that somebody changed the page.<br>
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<br>
I did, but I don't understand why someone renamed the 2012 map to
2009 at the same time !!!<br>
<br>
I created:<br>
<b>SPW(allon) 2012 aerial imagery</b><b><br>
</b><b>SPW(allon) 2009 aerial imagery</b><b><br>
</b>(so that the essential appears in the short space in the JOSM
list).<br>
<br>
I corrected the bounds (values changed and minlat/maxlat were
inverted)<br>
I set the format to jpeg instead of bmp (less cache memory for a
trifle more CPU).<br>
<br>
<b>Please check if it's OK with you before I remove the old 2012 aka
2009 entry.</b><br>
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<div> <br>
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<div bgcolor="#FFFFFF" text="#000000"> Can id=SPW be the
same or what should be used?<br>
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<div>you mean what to enter as the source of the changeset?
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<tt><span class="nt"><id></span></tt><tt>SPW</tt><tt><span
class="nt"></id></span></tt> <span class="nt">of course</span>,
is the name "SPW" referenced anywhere?<br>
I made the new ones SPW2009 and SPW2012.<br>
<span class="nt"></span>
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Cheers <br>
<span class="HOEnZb"><font color="#888888"> </font></span><br>
<span class="HOEnZb"><font color="#888888">
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<td>André.</td>
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<span class="HOEnZb"><font color="#888888"> </font></span><br>
<span class="HOEnZb"><font color="#888888"> </font></span></div>
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