<div>hi,Jochem</div><div>Thank you for your bat codes. I try to run it on my computer. It needs a bit more input parameters that is not easy for me.</div><div>The GNSS community have mature codes that can do the transformation fast and easy. But may not open source. </div><div><br></div><div>Kind regards,</div><div>Lei</div><div><br></div><div><!--emptysign--></div><div><div style="font-size:12px;padding:2px 0;">---Original---</div><div style="font-size:12px;background:#f0f0f0;color:#212121;padding:8px!important;border-radius:4px;line-height:1.5;"><div><b>From:</b> "Lesparre, Jochem"<Jochem.Lesparre@kadaster.nl></div><div><b>Date:</b> Sat, Nov 21, 2020 13:51 PM</div><div><b>To:</b> "proj"<proj@lists.osgeo.org>;"leiyang@fio.org.cn"<leiyang@fio.org.cn>;</div><div><b>Subject:</b> Re: [PROJ] How to transform XYZ to NEU</div></div><br>
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Hi Lei,</div>
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Although some users have asked for this feature before, there is no specific PROJ functionality for this. However, you can do the transformation with cct if you use the right parameters:</div>
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<a href="https://github.com/OSGeo/PROJ/issues/500">https://github.com/OSGeo/PROJ/issues/500</a><br>
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Regards, Jochem </div>
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<div id="divRplyFwdMsg"><strong>From:</strong> PROJ <proj-bounces@lists.osgeo.org> on behalf of leiyang@fio.org.cn <leiyang@fio.org.cn><br>
<strong>Sent:</strong> Saturday, 21 November 2020, 02:13<br>
<strong>To:</strong> proj<br>
<strong>Subject:</strong> [PROJ] How to transform XYZ to NEU<br>
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<div><span></span>Hi,</div>
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<div>I have the coordinates of XYZ under earth geocentirc system. I would like to transform them to the NEU (North East Up) system which is a GNSS frequently used system.</div>
<div>Now I know the cct could do the transform XYZ to BLH: </div>
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<pre><span class="line">echo <span class="number">4097216.6805</span> <span class="number">4429119.0287</span> <span class="number">-2065771.3676</span> <span class="number">0</span> | cct -I +proj=cart +ellps=GRS80</span></pre>
<pre>47.2292116930 -19.0183060232 1552.9924 0.0000</pre>
<pre>But I do not know how to transform it to NEU. I also checked the documents, and find no answer.</pre>
<pre>Thanks</pre>
<pre><br></pre>
<pre>Lei </pre>
<pre><span class="line"><br></span></pre>
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<div>leiyang@fio.org.cn</div>
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