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proj4js-test

참고 주소

https://www.osgeo.kr/17

좌표 테스트

127, 36 을 변환했을 경우

  • 4301 사용
4301 - 127.00212028267785  36.99719767389052

+proj=longlat +ellps=bessel +towgs84=-146.43,507.89,681.46 +no_defs
  • 4162 - 127.00209674840482 36.99713839323191
Bessel 1841 경위도: 한국과 일본에 잘 맞는 지역타원체를 사용한 좌표계

EPSG:4004, EPSG:4162 (Korean 1985)

+proj=longlat +ellps=bessel +no_defs +towgs84=-115.80,474.99,674.11,1.16,-2.31,-1.63,6.43

해양수산부 - 국립해양조사원 좌표변환

http://www.khoa.go.kr/kcom/cnt/selectContentsPage.do?cntId=31306000

7 param - 127.0020969444444444447   36.99713805555556

7parameter
(deltaX = -145.907, deltaY = 505.034, deltaZ = 685.756 Rx = -1.162, Ry = 2.347, Rz = 1.592, ppm = 6.342)


3 param - 127.0021180555555555558  36.9971525

3parameter
(X=-147±2, Y=+506±2, Z=+687±2)

Transform (transcore) 테스트

서울시청

WGS84 to Katec : 서울시청 : 126.978546 , 37.566554 => 309961.24970373325 , 552080.8406381792
Katec to WGS84 : 서울시청 : 309961.24970373325 , 552080.8406381792 => 126.97854561633538 , 37.566554547920305
WGS84 to Katec : 서울시청 : 126.97854561633538 , 37.566554547920305 => 309961.2164706504 , 552080.901816637

127,36

WGS84 to Katec : 127,36 : 127.0 , 36.0 => 310039.78705361905 , 378221.7461603807
Katec to WGS84 : 127,36 : 310039.78705361905 , 378221.7461603807 => 126.9999996290888 , 36.00000058315733
WGS84 to Katec : 127,36 : 126.9999996290888 , 36.00000058315733 => 310039.75427602354 , 378221.81120746024

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