Geobide, ED50 uye ETRS89 Coordinate System Shanduko
Kutora mukana wekutevera pane Mikana yeGeobide Suite, tichaona sarudzo dzekuchinja pakati Reference Systems. Interesting vaya vanofanira kuchinja pakati yakasiyana Datum mukati tichaona sei kuita izvozvo ED50 uye ETRS89 nehurongwa hazvisi anenge nyaya chete muLatin America pakati NAD27 uye WGS84.
Is data yakatumirwa here?
Iyi haisi iyo yeGoogle Earth, uko kune dzimwe shanduko dzinogadzirwa, mifananidzo yakawanda inodzingwa, chimwe chinhu icho iwe unogona kutarisa mukati-kati pakati pezvakasiyana zvinotora; Nekudaro, munyika zhinji, dzinoti kana nharaunda dzakazvimiririra, masangano eruzhinji akapa GoogleEarth nemifananidzo yavo ne georeference chaiyo, nekukanganisa iyo GoogleEarth inoshandisa WGS84 seyakajairika Datum, saka kushandisa data mune imwe system kunoda shanduko. Iko kushandurwa kunoenderana kutanga pane zvese patsananguro yayo pachayo asiwo nenzvimbo yatinozviwana tiri. Ndokusaka generic masystem asina kupa akakosha parameter enzvimbo yega yega.
Tora semuenzaniso shanduko ED50-30N (EPSG: 23030) kuenda ETRS89-30N (EPSG: 25830) yeNavarra, neSpain. Tsananguro yakajairika yeshanduko ine mwero wakasiyana wekurongeka zvichienderana nenzvimbo yainoiswa. Neichi chikonzero, pane mamwe maparameter, ayo asingaende mune dudziro generic uye ayo muNavarra semuenzaniso mamwe asi muAsturias vanogona kunge vaine mamwe maitiro akasiyana.
Kana isu tikatarisa pamufananidzo uri pamusoro wakatorwa kubva kuGeomap, tinoona mepu ine zvidimbu zviviri (orthophoto uye pasuru) yakatamisirwa hama kune mumwe nemumwe. Ndiwo mhedzisiro yekuratidzira iyo Navarra Cadastre muED-50N pane nhunzi iGoogleMaps layer muWGS84 uye kusununguka kunobviswa kunobatana nedambudziko rinotsanangurwa mundima yapfuura.
Yazvino Geobide dzidziso, kubva kwatiri kuita ichi chinyorwa ikozvino inodhinda dzinokwana nzira ina dzekugadzirisa, NaGeobide, izvozvi zvave kugona kuratidza iyo datum kushandurwa kweshanduko pakati peConanate Systems munzira ina dzakasiyana:
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Generic change:
Iyi sarudzo inoshandisa shanduko yemutauro pasina nzvimbo yepakati, uye ndiyo isina kururama. KwaNavarra, somuenzaniso, kufamba kubva ED50 kuenda kuETRS89 kune kukanganisa kwe ~ 100-200m mu x uye y. (Kuyeuka kuti izvi hazviiti KUTI uratidze zvirongwa zvine dhaka imwechete).
Akanyatsofanana ndiyo nyaya NAD27 pamwe WGS84 achifamba uye 202 metres kuchamhembe uye 6 metres kumabvazuva munzvimbo Central nzvimbo kuchinja sezvo imi change Latitude, kunyange zviri chete chinokosha munyika rusununguko zviri rinobva Ecuador apo iyo yakareba haisati yasvika kubva kumabvazuva enhema.
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Kuchinja uchishandisa gwaro reNATV2:
Iyi sarudzo inoshandisa girasi nemitemo yekugadzirisa kutendeuka nemashoko akasiyana-siyana. Iyi sarudzo yakanyanyisa kupfuura nzira yekutanga uye yakagamuchirwa neGGN. Zvakanaka, hongu, kana tine giradi rebasa redu.
Zvinyorwa zve Geobide Ivo zvino vanopa ma grid maviri akapihwa ne IGN yekuSpain, inovhara Peninsula neBalearic Islands, uye iyo yakaburitswa muna 2003 na2009. Mushandisi anogona kusarudza nyore nyore gridhi rekushandisa.
Mazhinji ma grid anogona kuwanikwa paInternet, kunyangwe pasirese, asi nehukuru iwo haawanikwe otomatiki mune yeGeobide application downloads.
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Molodensky shanduko (nzira ye 3-mitsara):
Shandisa 3 offset mararamiro pane zvakabva pakati peallipsoids. Mune mishandisirwo, mubatsiri wekugadziridza anotarisirwa ne IGN for Spain.
Bursa-Wolf Transformation (7-parameters nzira)
Iyi shanduko inoshandisa 7 maitiro ekushandura pakati pe-ellipsoids. Mitsara inopinda mairi ndeyi: Displacement (Dx, Dy, Dz), Rotation (Rx, Ry, Rz) uye Scale factor (μ)
Muzvishandiso Geobide 3 pre-configured vatsigiri vakurudzirwa ne IGN kune Northwest, Central zone uye East of the Peninsula, maererano.
Mhinduro
Sezvo iwe uchigona kuona zvigumisiro hazvisiyana zvakasiyana pakati pemidziyo yekupedzisira ye3, asi neyokutanga. Ndicho chikonzero iwe unofanirwa kuziva kana kushanduka kunoda chero ipi zvayo yakasarudzwa.
Pakati ED50-xxN (EPSG: 230xx) hurongwa uye ETRS89-xxN (EPSG: 258xx) munzvimbo Spain pachayo inofanira kushandiswa sezvo Datums / ellipsoids ED50 uye ETRS89 / WGS84 havasi noenderana.
Somuenzaniso, kana Geomap kwete izvi yepamusoro date yakatarwa, mashoko kubva Navarra muna ED50-30N (EPSG: 23030) reprojected pamusoro nhunzi pamusoro Data zvaipiwa Google Maps (ellipsoid WGS84) achaita kuzununguswa. Kukwanawo zvakanaka, zvinokosha kushandisa chinonyanya chaiwo transformations hwakatozadzika akatsanangura.
Zvinoratidzika kwandiri zvakanaka chaizvo kuti Geobide anoita basa rakaoma kwete kungosiya zvigadziro kune zvayo, asiwo kunyora mubvunzo uyu zvishoma nezvishoma sezvo zvichigona kuchinja zvikuru kunaka uye kunyatsogadzirisa kwebasa racho, pasina kungozvinzwisisa zvakare. Icho chimwe chiedza.
Saka kure, izvi zvose revatema rwoga kupinda injini, asi sezvo isu akataura shamwari Geobide, inodzidzisa zvinodiwa kwakaita kuti kusiya kuoneka zvikumbiro inodzidzisa achizivawo uye kunyange kuchinja default setting, kana kuisa imwe panzvimbo yako pabasa.
Kuchinja ellipsoidal / geoidal heights
Muchikamu chitsva iyo ellipsoidal / geoidal urefu hwekusiyanisa ibhokisi bhokisi rakashandurwa kuitira kuti iye zvino anokwanisa kusarudza mhando ye geoid inoshandiswa.
Faira Nomenclatures PRJ
Uye pakupedzisira, imwe shanduko yandinofunga yakanaka mune iyo kuedza kwekusabatanidzwa neOGC mitemo kana maitiro emapurogiramu akawanda. Zviratidzo zvePRJ izvo Geobide inogadzira zviri muOGC WKT nomenclature, iyo inowanikwa inozivikanwa nemabhuku akawanda eCAD / GIS. Hazvina kudaro zvekushanda kwe ESRI, iyo PRJ, kunyange zvazvo iri ine tsanangudzo yemasvomhu yakafanana seyoyo yakazara, inoparidzira Coordinate Systems zvakasiyana.
Somuenzaniso:
Muzvinyorwa zvePRJ file yeOGC, yeETRS89-30N system (EPSG: 25830) inotsanangurwa nemutemo we "ETRS89 / UTM zone 30N"; maitiro ESRI, pane kudaro, vanoriidza "ETRS_1989_UTM_Zone_30N". Kana kuArgGis tine mikana ne PRJs mumasclatures maviri aya software inozoita shanduko yepakati kunyange kana tsanangudzo yemasvomhu yeConstruction Systems yakafanana.
Kuteerera izvi kusindimara, Geobide yakagadzirisa sarudzo itsva mukutarisa sarudzo kuitira kuti munhu asarudze kana achida Coordinate System ne PRJ mumutauro weEPSG kana musimboti ESRI.
