orthophotos Njengoko georeferenced ku Google Earth

Ndathetha ngaphambili indlela yokujonga imephu KwiGoogle Earth, ngoku siza kubona ukuba senza njani okufanayo nge-orthophoto. Iqondwa yi-orthophoto, umfanekiso we-ortho-elungisiweyo, esiyaziyo indawo yawo.

Google Earth ucela iziqwenga ezine lolwazi, nto leyo bahambelana Kumaziko kwicala ngalinye orthophoto (jonga umfanekiso ngezantsi), abaninzi bakholelwa le nkqubo nayo imposiso ukususela orthophotos ze zayimosaic aba igridi kabani beskrini eyodwa emantla lokwenyaniso, kunokuba ke iinxalenye esiqu kunye ukufana.
Nangona kunjalo, akukho mpazamo kule nto, ngokuba i-Google Earth icela imida emine ye-orthophoto kwindlela yokubala kunye ne-longitude, ngoko kuya kubakho ukufumana zonke ezine.

Kule meko siza kuthathwa ukuba sikwenza kwi-Microstation.
Masihambe ngoko nyathelo ngesinyathelo:

Yazi idatha yomfanekiso

1 Veza i-orthophoto kwiMicrostation, kuba uvula ifayile, khetha umphathi we-raster / unamathisele, khubaza indawo esebenzisana kunye nokwamkela.

2 Ukuba awuboni lo mfanekiso, khetha kumlawuli we-raster ngeqhosha le mouse lasekunene kwaye wenze ukuba ukhetho luhambelane nokukujonga

3 Ngoku, ukwazi ukulungelelanisa, yenza izixhobo / iibhokisi ze sixhobo / isixhobo se-xyz Umxholo kwaye usebenzise ileyibhile «ilebhile yolungelelwaniso»

2 Udinga ukuhlanganiswa kwamanqaku eziko lemida ye-orthophoto, okoko yeyona ndlela ilungileyo yokwenza imigca ngeenxa zonke kuyo, ngoku khetha umyalela "ilebhile yolungelelwaniso" kwaye ucofe kumanqaku embindi yemigca.

4 Ngale nto sele unxibelelanisa i-x ubuncinci, ubuninzi be-x, kunye nobuncinci, kunye nobukhulu.

5 Ngendlela, thumela umfanekiso kwiifomathi ezixhaswayo nguGoogle Earth, kwimeko yam zikuyo .ecw, koku kuphela kumphathi we-raster ukhetha umfanekiso ngeqhosha lemouse lasekunene kwaye ukhethe u- "ugcine njenge», kule meko ndiza kuyithumela ku Ifomathi yefom

Ukuguqula i-UTM idibanisa kwiGeographic

Nangona ungabafumana ngokuthe ngqo nabanye izilungiselelo Ukusuka kwi-microstation, siya kuhlala silibonisa eli nqanaba.

6 Indawo endikuyo eHonduras, izixhumanisi zam zimi ngolu hlobo lulandelayo: X = 489885.60, Y = 1579986.30 X = 493260.30, Y = 1577678.70

Njengoko ndifuna ukuyiguqula kwii-latitudes kunye nobude obude, ndiya kusebenzisa le ndawo ukususela kumhlobo wethu Gabriel Ortiz Iphepha lakho liphantsi. Kule ndawo ndikhetha i-spheroid, kwimeko yam yi-Clarke 1866, emva koko indawo, eyi-16, i-hemisphere esemantla (N) kwaye ndingena kulungelelaniso.

Kuba iGoogle Earth indibuza ngedatha ekwimo yedesimali, ndiguqula imizuzwana ibe idesimali ngokuhlulahlula amashumi amathandathu, iyafana nemizuzu kunye nezibalo. Kwenziwa inkqubo elifanayo kunye nezihlanganisi ezine, musa ukujikeleza kuba kule fomati yolungelelaniso inani lesibini lithetha umgama obalulekileyo. Unokwenza oku kunye nenkqubo ekhethekileyo, kwabo baninzi apho ngaphandle, ayisihloko sesithuba.

Ukungenisa umfanekiso kwiGoogle Earth

7 Vula iGoogle Earth kwaye ufumane ngaphezulu okanye ngaphantsi kweli lizwe apho i-orthophoto iza kuba khona; Ndicinga ukuba unako i-Google Earth ivalwe kuba idla ubuninzi bezinto eziphathekayo.

8 Khetha ukhetho «wongeza umfanekiso ogqithisiweyo«, Ujonge umfanekiso kwisiphequluli kwaye usinike igama eliluncedo ngeenjongo zakho

9 Kwiphepha lokugqibela lelo phaneli (indawo) faka iinqununu ezine kwiimigangatho ezidityanisiweyo, qaphela ukuba ungasusi isimboli segrati.

10 Ngoku uzama ukusondeza kule ndawo, kwaye uza kubona i-ortho eprojekthi; Ubungqina obuhle kukuba ibhokisi inokulinganisela komfanekiso.

11 Kumgca wexesha, ngaphezulu kweethebhu zephaneli unokukhetha ixabiso elibonakalayo, emva koko ukhetho «lwamkele» kwaye yiyo.

Kwixesha elilandelayo siya kuzama enye indlela ejikeleze, khuphela umfanekiso kwiGoogle Earth kwaye wenze georeference. Inhlanhla kwaye undazise ukuba ndikuthumelela umyalezo wefomathi engavumelekanga :)).