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What type of Geographic Coordinate system does JMP use?

Hi,

 

I am trying to map coordinate data from Korean Government into JMP; because the data set given is much bigger and has detail resolution of map.

However, I have no idea how to convert the X-Y Coordinate to Longitude/Latitude system as used in Google or JMP.

So far as I am aware, the coordinate of X-Y is given in EPSG:5174.

This is the sample data from the file.

 

[XY File]

Shape Part X Y
1 1 197597.735 454551.233

 

[Name File]

Shape Code Name
1 1111014000 서울특별시 종로구 삼청동

 

With application of real estate price in Seoul, I produced the graphic as below / yet I wish to convert X-Y into Long/Lat Axis.

 

 

AnalyticsData TableGraphicsOtherScriptingRe: What type of Geographic Coordinate system does JMP use?

I believe it should be WGS84. I converted those coordinates and got:

 

126.975687°, 37.5904772°

 

Does this location look like what you would expect?

 

Re: What type of Geographic Coordinate system does JMP use?Yes, I figured it out, but then I cant convert XY table into WGS84-(EPSG3857?) from EPSG5174 (what I have).
So I went up to a point where I downloaded QGIS and opened up SHP file and got that coordinate changed to EPSG3857 of which is used for OpenStreetMap that is also used in JMP Background Map as Street Map, yet I have no idea how to extract it to csv or similar. Is there any addins that can convert different map coordinates including z axis vector projectile to rectify elliptical aberration during conversion if any?