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°ø°£ ÂüÁ¶ ½Ã½ºÅÛÀÇ Àß ¾Ë·ÁÁø ÅØ½ºÆ® Ç¥Çö½Ä¿¡¼­´Â °ø°£ ÂüÁ¶ ½Ã½ºÅÛ Á¤º¸¿¡ ´ëÇÑ Ç¥ÁØ ÅØ½ºÆ® Ç¥Çö½ÄÀ» Á¦°øÇÕ´Ï´Ù. Àß ¾Ë·ÁÁø ÅØ½ºÆ® Ç¥Çö½ÄÀÇ Á¤ÀÇ´Â POSC/EPSG ÁÂÇ¥ ½Ã½ºÅÛ µ¥ÀÌÅ͸¦ ¸ðµ¨·Î ÇÑ °ÍÀÔ´Ï´Ù.

°ø°£ ÂüÁ¶ ½Ã½ºÅÛÀ̶õ Áö¸®Àû (À§µµ-°æµµ), ÇÁ·ÎÁ§Æ®È­µÈ(X,Y) ¶Ç´Â Áö½É(X,Y,Z) ÁÂÇ¥ ½Ã½ºÅÛÀÔ´Ï´Ù. ÁÂÇ¥ ½Ã½ºÅÛÀº ¿©·¯ °³ÀÇ ¿ÀºêÁ§Æ®·Î ±¸¼ºµË´Ï´Ù. °¢ ¿ÀºêÁ§Æ®´Â DATUM ¶Ç´Â UNIT¿Í °°Àº ´ë¹®ÀÚ Å°¿öµå¸¦ °¡Áö¸ç, °ýÈ£¾È¿¡ ½°Ç¥·Î ±¸ºÐÇÏ¿© Á¤ÀÇÇÑ ¿ÀºêÁ§Æ® ¸Å°³º¯¼öµéÀÌ µû¶ó ³ª¿É´Ï´Ù. ÀϺΠ¿ÀºêÁ§Æ®´Â ´Ù¸¥ ¿ÀºêÁ§Æ®µé·Î ±¸¼ºµÇ¹Ç·Î °á°ú°¡ ÁßøµÈ ±¸Á¶¸¦ °¡Áú ¼ö ÀÖ½À´Ï´Ù.

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±¸ÇöÇÒ ¶§ ´ë°ýÈ£ [ ] ´ë½Å Ç¥ÁØ °ýÈ£()¸¦ »ç¿ëÇØµµ ÁÁÁö¸¸ µÎ °ýÈ£ ¾ç½Ä ¸ðµÎ ÀÐÀ» ¼ö ÀÖµµ·Ï ÁغñÇØ¾ß ÇÕ´Ï´Ù.

´ë°ýÈ£¸¦ »ç¿ëÇÏ´Â ÁÂÇ¥ ½Ã½ºÅÛÀÇ ¹®ÀÚ¿­ Ç¥Çö½Ä¿¡ ´ëÇÑ EBNF(Extended Backus Naur Form) Á¤ÀÇ´Â ´ÙÀ½°ú °°½À´Ï´Ù(°ýÈ£ »ç¿ë¿¡ °üÇØ¼­´Â À§ÀÇ ÁÖ ÂüÁ¶).

<coordinate system> = <projected cs> | <geographic cs> | <geocentric cs>
<projected cs> = PROJCS["<name>", <geographic cs>, <projection>, {<parameter>,}*
                <linear unit>]
<projection> = PROJECTION["<name>"]
<parameter> = PARAMETER["<name>", <value>]
<value> = <number>

µ¥ÀÌÅÍ ¼¼Æ®ÀÇ ÁÂÇ¥ ½Ã½ºÅÛÀº µ¥ÀÌÅͰ¡ ÇÁ·ÎÁ§Æ®È­µÈ ÁÂÇ¥Àΰæ¿ì¿¡ PROJCS Ű¿öµå·Î ½Äº°µË´Ï´Ù(±âÇÏÇÐ ÁÂÇ¥ÀÎ °æ¿ì¿¡´Â GEOGCS·Î, Áö½É ÁÂÇ¥ÀÎ °æ¿ì¿¡´Â GEOCCS·Î). PROJCS Ű¿öµå µÚ¿¡´Â ÇÁ·ÎÁ§Æ®È­µÈ ÁÂÇ¥ ½Ã½ºÅÛÀ» Á¤ÀÇÇÏ´Â ¸ðµç "Á¶°¢µé"ÀÌ ¼ö¹ÝµË´Ï´Ù. ¸ðµç ¿ÀºêÁ§Æ®ÀÇ Ã¹¹øÂ° Á¶°¢Àº Ç×»ó À̸§ÀÔ´Ï´Ù. ÇÁ·ÎÁ§Æ®È­µÈ ÁÂÇ¥ ½Ã½ºÅÛ À̸§ Áï, Áö¸®Àû ÁÂÇ¥ ½Ã½ºÅÛ, ¸Ê °ø°£ ¹æ»ç, Çϳª ÀÌ»óÀÇ ¸Å°³º¯¼ö ¹× ¼±Çü Ä¡¼ö µÚ¿¡ ¿©·¯ ¿ÀºêÁ§Æ®µéÀÌ µû¶ó ³ª¿É´Ï´Ù. ÇÁ·ÎÁ§Æ®È­µÈ ÁÂÇ¥ ½Ã½ºÅÛµéÀº ¸ðµÎ Áö¸®Àû ÁÂÇ¥ ½Ã½ºÅÛ¿¡ ±Ù°ÅÇϹǷÎ, ÀÌ Àý¿¡¼­´Â ÇÁ·ÎÁ§Æ®È­µÈ ÁÂÇ¥ ½Ã½ºÅÛ¿¡ ƯÁ¤ÀûÀÎ Á¶°¢µéÀ» ¸ÕÀú ¼³¸íÇÕ´Ï´Ù. ¿¹¸¦ µé¾î, NAD83 ±âÁØ»óÀÇ UTM Á¸ 10NÀº ´ÙÀ½°ú °°ÀÌ Á¤Àǵ˴ϴÙ.

PROJCS["NAD_1983_UTM_Zone_10N",
<geographic cs>,
PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting",500000.0],
PARAMETER["False_Northing",0.0],
PARAMETER["Central_Meridian",-123.0],
PARAMETER["Scale_Factor",0.9996],
PARAMETER["Latitude_of_Origin",0.0],
UNIT["Meter",1.0]]

À̸§ ¹× ¿©·¯ ¿ÀºêÁ§Æ®µé(±âÁØ, ÀÚ¿À¼± ¹× °¢µµ Ä¡¼ö)ÀÌ Áö¸®Àû ÁÂÇ¥ ½Ã½ºÅÛ ¿ÀºêÁ§Æ®¸¦ Â÷·Ê·Î Á¤ÀÇÇÕ´Ï´Ù.

<geographic cs> = GEOGCS["<name>", <datum>, <prime meridian>, <angular unit>]
<datum> = DATUM["<name>", <spheroid>]
<spheroid> = SPHEROID["<name>", <semi-major axis>, <inverse flattening>]
<semi-major axis> = <number>
    (semi-major axis is measured in meters and must be > 0.)
<inverse flattening> = <number>
<prime meridian> = PRIMEM["<name>", <longitude>]
<longitude> = <number>

NAD83»óÀÇ UTM Á¸ 10¿¡ ´ëÇÑ Áö¸®Àû ÁÂÇ¥ ½Ã½ºÅÛ ¹®ÀÚ¿­.

GEOGCS["GCS_North_American_1983",
DATUM["D_North_American_1983",
SPHEROID["GRS_1980",6378137,298.257222101]],
PRIMEM["Greenwich",0],
UNIT["Degree",0.0174532925199433]]

UNIT ¿ÀºêÁ§Æ®´Â °¢µµ ¶Ç´Â ¼±Çü Ä¡¼ö¸¦ ³ªÅ¸³¾ ¼ö ÀÖ½À´Ï´Ù.

<angular unit> = <unit>
<linear unit> = <unit>
<unit> = UNIT["<name>", <conversion factor>]
<conversion factor> = <number>
 

º¯È¯ Àμö´Â ´ÜÀ§´ç ¹ÌÅͼö(¼±Çü ´ÜÀ§ÀÇ °æ¿ì) ¶Ç´Â ¶óµð¾È ¼ö(°¢µµ ´ÜÀ§ÀÇ °æ¿ì)¸¦ ÁöÁ¤Çϸç ÀÌ´Â 0º¸´Ù Ä¿¾ß ÇÕ´Ï´Ù.

±×·¯¹Ç·Î UTM Á¸ 10NÀÇ Àüü ¹®ÀÚ¿­ Ç¥Çö½ÄÀº ´ÙÀ½°ú °°½À´Ï´Ù.

PROJCS["NAD_1983_UTM_Zone_10N",
GEOGCS["GCS_North_American_1983",
DATUM[ "D_North_American_1983",SPHEROID["GRS_1980",6378137,298.257222101]],
PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],
PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],
PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-123.0],
PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_of_Origin",0.0],
UNIT["Meter",1.0]]

Áö½É ÁÂÇ¥ ½Ã½ºÅÛÀº Áö¸®Àû ÁÂÇ¥ ½Ã½ºÅÛ°ú À¯»çÇÕ´Ï´Ù.

<geocentric cs> = GEOCCS["<name>", <datum>, <prime meridian>, <linear unit>]


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