Geobide, ED50 ndi ETRS89 Coordinate System Transformation

Kutenga mwayi kutsata zofunikira za Geobide Suite, tidzawona zosankha zosinthira Zokambirana Zokhudza. Osangalatsa amene ayenera kusandutsa pakati Datum osiyana mu nkhani iyi tiona mmene kuchita ndi ED50 ndi ETRS89 machitidwe pafupifupi nkhani chomwecho mu Latin America pakati NAD27 ndi WGS84.

ED50 ndi ETRS89 geobide

Kodi deta yasunthidwa?

Izi sizili choncho pa Google Earth, kumene kusintha kwina kumapangidwira, zithunzi zambiri zimachoka kwawo, chinachake chomwe akhoza kuyang'aniranso pofukula pakati pa maulendo osiyana; Komabe, m'mayiko ambiri, mayiko kapena madera yoyenda yokha, boma atumiza zithunzi wanu GoogleEarth georeferenced zolondola, ndi sangathe kuti amagwiritsa GoogleEarth WGS84 monga Datum generic, kotero ntchito deta dongosolo lina amafuna kusintha. Kusandulika kumadalira chiyambi chazokha komanso malo omwe tili. Ichi ndi chifukwa chake machitidwe apamwamba samapereka magawo apadera a gawo lililonse.

Mwachitsanzo ED50-30N kusandulika (EPSG: 23030) kuti ETRS89-30N (EPSG: 25830) kwa Navarra, ndi Spain. The tanthauzo generic kusinthika ali amawasonyeza mosiyanasiyana molondola malinga dera lomwe amanena. Choncho, pali magawo angapo owonjezera kuti sali mu tanthauzo generic ndi kuti Navarra mu Asturias ali ochepa koma akhale nawo makhalidwe ena.

Ngati tiyang'ana chithunzi chomwe chagwedezeka pamwamba pa Geomap, tikuwona mapu okhala ndi zigawo ziwiri (orthophoto ndi chiwembu) akusuntha pakati pawo. Ndi zotsatira za kuyesa Cadaster of Navarre paulendo wa ED-50N GoogleMaps mu WGS84 ndipo chokhumudwitsacho chimayenderana ndi vuto lomwe lafotokozedwa m'ndime yapitayi.

Maphunziro aposachedwapa ochokera ku Geobide, omwe tikuchita nawo nkhaniyi tsopano akufalitsa osachepera 4 njira zothetsera vutoli ,. Ndi Geobide, tsopano ndi kotheka kusonyeza kutembenuka kwa deta kwa kusintha pakati pa Coordinate Systems m'njira zinayi zosiyana:

  1. Generic kusintha:ED50 ndi ETRS89 geobide

Njirayi imagwiritsa ntchito kusintha kosasintha popanda malo apakati, ndipo ndizosavuta. Kwa Navarra Mwachitsanzo, kuchoka ku ED50 kupita ku ETRS89 kuli ndi vuto la ~ 100-200m mu x ndi y. (Kukumbukira kuti izi sizimakhudza dongosolo loyenderana ndi dera lofanana).

Ndithu zofanana ndi nkhani ya NAD27 ndi WGS84 kuyenda ndi 202 mamita kumpoto ndi 6 mamita kum'mawa kusintha chapakati malo monga kusintha kumpoto ngakhale tizikumbukira okha kumpoto ikuchokera Ecuador pamene kutalika kumangobwera kuchokera kummawa wonyenga.

  1. Kusintha Kugwiritsa Ntchito Grid NTv2:

Njirayi imagwiritsira ntchito galasi ndi mfundo zoyenera kutembenuza kutembenuzidwa ndi zilembo zofanana. Njirayi ndi yeniyeni kuposa njira yoyamba ndipo yapangidwa ndi IGN. Zolondola, ndithudi, ngati tili ndi galasi kuntchito yathu.

Kugwiritsa ntchito Geobide tsopano perekani magulu awiri operekedwa ndi IGN ku Spain, omwe akuphimba Peninsula ndi Balearic Islands, zomwe zinafalitsidwa mu 2003 ndi 2009. Wosuta angathe kusankha mosavuta grid kuti agwiritse ntchito.

ED50 ndi ETRS89 geobide

Pa intaneti mungapeze magulu ambiri, ngakhale padziko lonse lapansi, koma kukula kwake sikungathe kupezeka pazomwe amagwiritsa ntchito Geobide.

  1. Kusintha kwa Molodensky (njira ya 3-magawo):

3 imagwiritsa ntchito machitidwe osokonekera pa chiyambi pakati pa ellipsoids. Msewu wokonzedweratu wotchulidwa ndi IGN ku Spain.

ED50 ndi ETRS89 geobide


  1. Kusintha kwa Bursa-Wolf (njira ya 7-magawo)

Kusintha uku kumagwiritsa ntchito maonekedwe a 7 kusintha pakati pa ellipsoids. Zomwe mungalowemo ndi: Offset (Dx, Dy, Dz), Rotation (Rx, Ry, Rz) ndi Factaling Scoring (μ)

Muzochita Geobide Othandiza a 3 akukonzekera kale IGN kwa Northwest, Central Zone ndi East of the Peninsula, motero.

ED50 ndi ETRS89 geobide

Zotsatira

Pamene mukutha kuona zotsatira sizikusiyana pakati pa njira zatsopano za 3, koma inde ndi yoyamba. Ndicho chifukwa chake muyenera kudziwa ngati kusinthika kumafuna njira iliyonse yapamwamba.

Pakati pa ED50-xxN (EPSG: 230xx) machitidwe ndi ETRS89-xxN (EPSG: 258xx) m'dera la Spain chiyenera kugwiritsidwa ntchito monga Datums / ellipsoids ED50 ndi ETRS89 / WGS84 sali ofanana.

Mwachitsanzo, ngati Geomap si awa deta patsogolo akonzedwa, kafukufuku Navarra mu ED50-30N (EPSG: 23030) reprojected pa ntchentche pa deta kuperekedwa ndi Google Maps (ellipsoid WGS84) Kodi anagwidwa. Kuti iwo awoneke bwino, m'pofunika kugwiritsa ntchito kusintha kwakukulu komwe kwafotokozedwa kale.

ED50 ndi ETRS89 geobide

Zikuwoneka bwino kuti Geobide amachita khama kwambiri osati kungosiya mphamvu zake, komanso kulembetsa mwatsatanetsatane funso ili popeza lingakhudze kwambiri khalidwe ndi leniyeni la ntchito, osati kungomvetsetsanso ndi khama lina.

Padakali izi zonse Integrated basi mu injini, koma ngati ife ndemanga abwenzi a Geobide, zofuna wosuta kuwatsogolera kusiya kuonekera ofunsira wosuta kukhala mosazindikira ndipo ngakhale kusintha yakhazikika, kapena yikani china kuntchito yanu.

Kusintha kwa ellipsoidal / geoidal high

M'mawu atsopanowo, ellipsoidal / geoid kutalika kwa kusiyana kowerengera bokosi inasinthidwanso kotero kuti wosuta akhoza kusankha tsopano geoid chitsanzo kuti agwiritsidwe ntchito.

ED50 ndi ETRS89 geobide


PRJ Ikani Maina Zina

ED50 ndi ETRS89 geobideNdipo potsiriza, kusintha kwina kumene kumawoneka bwino mwa inu khama la kuyanjana ndi miyezo ya OGC kapena machitidwe a anthu ambiri. Pulogalamu ya PRJ yomwe Geobide amapanga ili m'ndandanda wa OGC WKT, yomwe ndi yovomerezeka ndi zida zambiri za CAD / GIS. Osati pazochita za ESRI, zomwe PRJ, ngakhale ziri ndi malingaliro ofanana a masamu monga momwe zimakhalira, zimaphatikizapo Njira Zogwirizanitsa mosiyana.

Mwachitsanzo:

Mu nkhani za wapamwamba PRJ OGC, dongosolo ETRS89-30N (EPSG: 25830) limanenedwa ndi codename "ETRS89 / UTM zone 30N"; ntchito ESRI, m'malo mwake, amachitcha "ETRS_1989_UTM_Zone_30N". Ngati timacheza ndi PRJs zigawo mu nomenclatures awiri ArcGis pulogalamuyo amachita okhudza malo processing ngakhale tanthauzo masamu wa ntchito machitidwe ndi zofanana.

Kumvetsera izi kusamvera, Geobide yathandiza kuti pakhale njira yatsopano muzokonzedwe kawotcheru kotero wogwiritsa ntchito akhoza kusonyeza ngati akufuna dongosolo la Coordinate ndi PRJ mu kalembedwe ka EPSG ESRI.

http://www.geobide.es/

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