orthophotos Njengoba georeferenced ku-Google Earth
Ngangikhulume ngaphambili kanjani amabalazwe we-georeference ku-Google Earth, manje sizobona ukuthi senza okufanayo kanjani ne-orthophoto. Qonda nge-orthophoto, isithombe esibhaliwe, esingazi ukuthi siyini.
-Google Earth ucela izingcezu ezine kolwazi, okuyinto zivumelana izikhungo ohlangothini orthophoto ngayinye (bona isithombe ngezansi), abaningi bakholelwa uhlelo has a ohlangothini iphutha kusukela orthophotos ka wamatshana ungeyena igridi kabani imiphetho uqondane enyakatho yeqiniso, kunalokho ziyingxenye yamameridi kanye nokufana.
Nokho Ungaphazami, ngoba i-Google Earth ebuza ukuthi yilezo imingcele ezine orthophoto format zindawo futhi longitudes, ngakho-ke lokhu kuyodingeka uthole ezine.
Kulokhu sizocabangela ukuthi sikwenza ku-Microstation.
Ake sihambe ngesinyathelo ke:
Yazi idatha yesithombe
I-1. Khombisa i-orthophoto ku-Microstation, ngoba uvula ifayela, khetha umphathi we-raster / unamathisele, khubaza indawo yokukhethwa kuyo bese uyamukela.
2. Uma ungasiboni isithombe, sikhethe kumphathi we-raster ngenkinobho yegundane engakwesokudla bese wenza kusebenze inketho ethi “fit raster to view”
3. Manje, ukuze wazi izixhumanisi, vula amathuluzi/amabhokisi amathuluzi/ithuluzi le-xyztext futhi usebenzise umyalo “wokuxhumanisa ilebula”
2. Udinga izixhumanisi zamaphuzu amaphakathi wemikhawulo ye-orthophoto, ngakho-ke indlela engcono kakhulu yokwenza imigqa ezungezile, manje khetha umyalo "wezixhumanisi zelebula" bese uchofoza amaphuzu amaphakathi emigqa.
I-4. Ngalokhu usuvele unalo izixhumanisi x ubuncane, x ubuningi, futhi ubuncane, futhi esiphezulu.
5. Kodwa-ke, thekelisa isithombe kumafomethi asekelwa i-Google Earth, kimina ku-.ecw, kulokhu kuphela kumphathi we-raster ukhetha isithombe ngenkinobho yegundane engakwesokudla bese ukhetha "gcina njenge", kulokhu. icala ngizothekelisa kufomethi ye-.tif
Iguqula ukuhlela kwe-UTM ku-Geographic
Noma ungabathola ngqo nabanye izilungiselelo we-microstation, sizobonisa lesi sinyathelo njalo.
I-6. Indawo yami e-Honduras, izixhumanisi zami zimi kanje: X = 489885.60, Y = 1579986.30 X = 493260.30, Y = 1577678.70
Njengoba ngidinga ukuyiguqula ekulandeleni nasezindabeni eziphakeme, ngizosebenzisa leli sayithi kusukela kumngane wethu UGabriel Ortiz Ikhasi lakho liwile. Kuleli sayithi I ukhethe spheroid, uma yami 1866 Clarke ke endaweni, okuyinto 16, Nenkabazwe (N) futhi imali nokudidiyela.
Njengoba i-Google Earth engibuza idatha ngefomethi idesimali, ukuguqula imizuzwana idesimali sokuhlukanisa by ayisithupha ke okufanayo imizuzu kanye sumo. Inqubo efanayo kuyenziwa ngezixhumanisi ezine, ungazungezi ngoba kule fomethi yokuxhumanisa idayimali yesibili isho ibanga elikhulu. Ungakwazi futhi ukwenza lokhu ngohlelo olukhethekile, kukhona abaningi ngaphandle, akuyona into yokuthunyelwe.
Ukungenisa isithombe ku-Google Earth
I-7. Vula i-Google Earth bese uthola okungenani ezweni elingaphansi lapho i-orthophoto izoba khona; Ngicabanga ukuthi ube ne-Google Earth ivaliwe ngoba idla izinsiza eziningi.
8. Khetha inketho “engeza ukunqwabelana kwesithombe", ubheka isithombe esipheqululini futhi usinikeze igama eliwusizo ngezinjongo zakho
I-9. Kuthebhu yokugcina yalephaneli (indawo) faka izixhumanisi ezine emazingeni aphansi, qaphela ukuthi ungasusi uphawu lwe-degree.
I-10. Manje zama ukusondeza endaweni, futhi uzobona i-ortho ephrojekthi; Isibonakaliso esihle ukuthi ibhokisi linokulingana kwesithombe.
11. Emugqeni wesikhathi, ngenhla kwamathebhu aleli phaneli ungakhetha inani lokubonisa ngale, bese ukhetha inketho "yokwamukela" futhi yikho.
Esikhathini esilandelayo sizozama ukuguqula, ukulanda isithombe se-Google Earth bese udala ukulinganisa. Inhlanhla futhi ungitshele ukuthi ngikuthumelela umlayezo wefomethi engavumelekile :)).
Isayithi elihle ... ngiyabonga ...
Ijika lezinga elikhiqizwa ku-Google Earth livela kumodeli we-SRTM digital, okuyinto, ngoba inombono womhlaba wonke, unembile kakhulu emisebenzini yendawo.
http://www2.jpl.nasa.gov/srtm/
kuhle kubo bonke
Ngingumusha kulokhu kodwa ngingangabazi ukuthi umkhawulo wesiphambeko unezinkampani ezivela e-google komhlaba kuya ku-3d yomphakathi
Kusihlwa okuhle ... lesi sithangami sibonakala kuhle kakhulu kimi. ngiyabonga ngizobe ngilinde imibuzo ethile..attm
kwaphuma ifomethi engavumelekile!