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<p>Dear Dongguk Lee,</p>
<p>interesting topic! I just did a bit of "geodetic archeology" and
I figured out from
<a class="moz-txt-link-freetext" href="https://github.com/Esri/projection-engine-db-doc/blob/440e9f0e7184ce00b567cf6531d54d8c15d24ed8/objedit/gxyzcs_syn.txt#L127">https://github.com/Esri/projection-engine-db-doc/blob/440e9f0e7184ce00b567cf6531d54d8c15d24ed8/objedit/gxyzcs_syn.txt#L127</a>
, that "Korea_2000" was an older name used by ESRI a few years ago
for what EPSG now calls "KGD2002". Ideally PROJ (the library used
underneath by QGIS to manage coordinate systems) should store this
alias somewhere, but it doesn't currently</p>
<p>Anyway you can safely use EPSG:5186 for shapefiles with a
KGD200_Central_Belt_2010 .prj. This is just the same CRS.<br>
</p>
<p>Even<br>
</p>
<div class="moz-cite-prefix">Le 18/10/2024 à 05:16, "이동국" via
QGIS-User a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:6711d3973fdef12f5c46f9b6@ethree.co.kr">
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<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">To Whom It May Concern,</p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;"> </p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">My name is Dongguk Lee and I work for a GIS company, called Ethree, in South Korea. We have been using QGIS since around 2020 and have been working on many GIS projects during this time. However, we recently discovered that the data we have collected and analyzed seems to be in a different coordinate system. Upon comparing the projection details in the .prj files, we noticed that they are nearly identical except of the name of the coordinate system, but we are unsure if there has been a change in naming due to updates of the software. Could you please share any information on this issue if you have? </p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;"> </p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">Our specific question is whether "KGD200_Central_Belt_2010" from a new version and "Korea_2000_Korea_Central_Bult_2010" from an old version are different. We have been using the EPSG:5186 system all the time.
Please check the attached photo showcasing the difference (the
top one is new while the botton one is old)</p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;"> </p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">I apologize for the length of this
email and appreciate any assistance you can provide.</p>
<p
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<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">Best regards,</p>
<p
style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 10pt; line-height: 20px; font-optical-sizing: inherit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; min-height: 20px; color: rgb(34, 34, 34); font-family: 돋움;">Dongguk
Lee</p>
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src="cid:part1.VpmIMPPL.PQE2P45I@spatialys.com"
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<p
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<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.
Butcher of all kinds of standards, open or closed formats. At the end, this is just about bytes.</pre>
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