<div dir="ltr">So, is it in Proj.4 (EPSG dataset coordinate operation method code 9836), is someone working on it ? (it should be quite simple, mathematically).<br><br><div class="gmail_quote">On Thu, Oct 23, 2008 at 1:30 PM, Noel Zinn <span dir="ltr"><<a href="mailto:ndzinn@comcast.net">ndzinn@comcast.net</a>></span> wrote:<br>
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<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">FYI, the current version of the EPSG
Guidance Note 7-2 presents the algorithm to do this (called topocentric
coordinates by the EPSG). If this is not in proj4 already, I would
support its inclusion. Also FYI, if the vertical dimension of topocentric
coordinates is ignored, the remaining horizontal coordinates define the
ellipsoidal orthographic projection. –Noel Zinn</span></font></p>
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<p><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;">
<a href="mailto:proj-bounces@lists.maptools.org" target="_blank">proj-bounces@lists.maptools.org</a> [mailto:<a href="mailto:proj-bounces@lists.maptools.org" target="_blank">proj-bounces@lists.maptools.org</a>] <b><span style="font-weight: bold;">On Behalf Of </span></b>Eran Burstain<br>
<b><span style="font-weight: bold;">Sent:</span></b> Thursday, October 23, 2008
4:55 AM<br>
<b><span style="font-weight: bold;">To:</span></b> <a href="mailto:proj@lists.maptools.org" target="_blank">proj@lists.maptools.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b> [Proj] Local Level</span></font></p>
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<p style="margin-bottom: 12pt;"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Hi !<br>
Can I convert a point from geocentric to Local Level Projection (also called
Local Tangent Plane) ?<br>
It's only Rotation and Shift from the geocentric representation.</span></font></p>
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