<div>Hi Lennox,</div>
<div> </div>
<div><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://local.live.com/default.aspx?v=2&cp=0~0&style=h&lvl=1&scene=1875974" target="_blank">http://local.live.com/default.aspx?v=2&cp=0~0&style=h&lvl=1&scene=1875974
</a>,</div>
<div> </div>
<div>is this an application using ka-map?</div>
<div> </div>
<div>zhonghai<br> </div>
<div><span class="gmail_quote">On 6/2/06, <b class="gmail_sendername">Lennox Antoine</b> <<a href="mailto:lxnyce@gmail.com">lxnyce@gmail.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">I believe this is the same projection used in VirtualEarth<br>(<a href="http://local.live.com/default.aspx?v=2&cp=0~0&style=h&lvl=1&scene=1875974">
http://local.live.com/default.aspx?v=2&cp=0~0&style=h&lvl=1&scene=1875974</a>),<br>so you can check out the projection they used to get it into<br>Geographic LL coordinates.<br><br><a href="http://www.brains-n-brawn.com/default.aspx?vDir=veworldwind">
http://www.brains-n-brawn.com/default.aspx?vDir=veworldwind</a><br><br>I'll paste the reprojection area of the code here :<br><br>//NOTE tiles did not line up properly with ellps=WGS84<br>//string [] projectionParameters = new string[]{"proj=merc",
<br>"ellps=WGS84", "no.defs"};<br>//+proj=longlat +ellps=sphere +a=6370997.0 +es=0.0<br>string [] projectionParameters = new string[]{"proj=merc",<br>"ellps=sphere", "a=" +
earthRadius.ToString(), "es=0.0", "no.defs"};<br>proj = new Projection(projectionParameters);<br><br>I have also had luck estimating it with tangent and log functions<br>without using proj.4.<br><br>-Lennox
<br><br><br>On 6/1/06, Joaquim Luis <<a href="mailto:jluis@ualg.pt">jluis@ualg.pt</a>> wrote:<br>> I don't know what is the projection of the Google image. Maybe a Miller<br>> cylindrical.<br>> I don't know either the proj string to do it.
<br>> You can look at the GMT cookbook to see many example maps of different<br>> projections.<br>> (the site seams to be having some problems right now)<br>><br>> Joaquim<br>> ><br>> > Ah, thank you! That helps, but I still can't figure it out.
<br>> ><br>> > Basically what I'm trying to do is convert this:<br>> ><br>> > <a href="http://veimages.gsfc.nasa.gov/7107/world.topo.bathy.200408.3x5400x2700.jpg">http://veimages.gsfc.nasa.gov/7107/world.topo.bathy.200408.3x5400x2700.jpg
</a><br>> > <<a href="http://veimages.gsfc.nasa.gov/7107/world.topo.bathy.200408.3x5400x2700.jpg">http://veimages.gsfc.nasa.gov/7107/world.topo.bathy.200408.3x5400x2700.jpg</a>><br>> ><br>> > Into something that looks like this:
<br>> ><br>> > <a href="http://maps.google.com/?ll=4.915833,56.25&spn=179.778788,360&t=k&om=1">http://maps.google.com/?ll=4.915833,56.25&spn=179.778788,360&t=k&om=1</a><br>> > <
<a href="http://maps.google.com/?ll=4.915833,56.25&spn=179.778788,360&t=k&om=1">http://maps.google.com/?ll=4.915833,56.25&spn=179.778788,360&t=k&om=1</a>><br>> ><br>><br>> _______________________________________________
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