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<div><span></span><div>Hi, Even</div><div>Thanks for your help. It works fine.</div><div><span style="line-height: 1.5; background-color: transparent;">Now I am not very clear about the `+proj=string` meaning. Such as `+proj=cart`.</span></div><div><span style="line-height: 1.5; background-color: transparent;">Could give me a hint where to find the help document about this?</span></div><div>I would like to learn more.</div><div><br></div><div>Thanks</div><div><br></div><div>Lei</div></div>
<div><br></div><hr style="width: 210px; height: 1px;" color="#b5c4df" size="1" align="left">
<div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>leiyang@fio.org.cn</div></div></span></div>
<blockquote style="margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5em; margin-Right: inherit"><div> </div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b> <a href="mailto:even.rouault@spatialys.com">Even Rouault</a></div><div><b>Date:</b> 2020-09-03 05:18</div><div><b>To:</b> <a href="mailto:proj@lists.osgeo.org">proj</a></div><div><b>CC:</b> <a href="mailto:leiyang@fio.org.cn">leiyang@fio.org.cn</a></div><div><b>Subject:</b> Re: [PROJ] How to transform the XYZ coordinate (ITRF) to Latitude/Longitude?</div></div></div><div><div class="FoxDiv20200903084020786971">
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">Lei,</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;"> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> I am new to the Proj.</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> I want to transfrom the ITRF geocentric coordinates to the</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> Latitude/Longitude. I did not find the solution after reading the document</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> in https://proj.org/operations/conversions/cart.html</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;"> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> I just found this:</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> echo 17.7562015132 45.3935192042 133.12 2017.8 | cct +proj=cart</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> +ellps=GRS80</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> But I need the inverse transfrom.</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">> I guess the Proj have such function. </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;"> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">Yes, see the -I switch : https://proj.org/apps/cct.html</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;"> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">Even</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;"> </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">-- </p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">Spatialys - Geospatial professional services</p>
<p style="margin: 0px; text-indent: 0px; white-space: pre-wrap;">http://www.spatialys.com</p></div></div></blockquote>
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