orthophotos monga georeferenced mu Google Earth

Kale ikunenedwa mapu monga georeferenced mu Google Earth, tiwona momwe tikuchitiranso zomwezo ndi mayina a orthophoto. Kumvetsetsani ndi zojambulajambula, zithunzi zovomerezeka, zomwe timadziwa momwe zimakhalira.

Google Earth akufunsa zidutswa anayi zambiri, omwe amayenderana ndi malo mbali orthophoto (onani chithunzi m'munsimu), ambiri amakhulupirira dongosolo ali ndi malire a cholakwika kuyambira orthophotos zithunzi ndi si gululi amene m'mbali lifanane ndi kumpoto koona, koma iwo ndi zigawo za meridians ndi kufanana.
Komabe musalakwitse pa izo, chifukwa Google Earth akufunsa kodi anthu malire anayi orthophoto mtundu M'madera a zitunda ndi longitudes, kotero izi muyenera kupeza anthu anayi.

Pachifukwa ichi tidzatsimikiza kuti timachita mu Microstation.
Tiyeni ndiye dera lirilonse:

Kudziwa deta chifaniziro

1 Onetsani orthophoto mu Microstation, kuti mutsegule fayilo, sankhani oyang'anira galimoto / amangiriza, kulepheretsani malo omwe mungasankhe nawo ndikugwirizana.

2. Ngati simukuwona chithunzicho, sankhani kuchokera kwa manejala wa raster ndi batani lakumanja la mbewa ndikuyambitsa "fit raster to view"

3. Tsopano, kuti mudziwe zolumikizira, yambitsani zida/mabokosi/xyztext chida ndikugwiritsa ntchito lamulo la "label coordinates"

2. Mukufunikira kugwirizanitsa mfundo zapakati pa malire a orthophoto, kotero njira yabwino ndiyo kupanga mizere yozungulira, tsopano sankhani lamulo la "label coordinates" ndikudina pa mfundo zapakati pa mizere.

4. Ndi kuti kale ndondomeko × osachepera × pazipita, osachepera, ndi pazipita.

5. Mwa njira, tumizani chithunzicho kumapangidwe omwe Google Earth imathandizira, kwa ine ili mu .ecw, chifukwa cha izi kokha mu raster manager mumasankha chithunzicho ndi batani lakumanja ndikusankha "kusunga monga", mu izi. Ngati nditumiza ku mtundu wa .tif

UTM Malo akatembenuka Geographic

Ngakhale inu mukhoza kutenga nawo mwachindunji ndi zina zoikamo wa microstation, tidzakambirana chitsanzo ichi nthawi zonse.

6. malo anga ali Honduras, ndondomeko wanga ali motere: X = 489885.60, 1579986.30 Y = X = 493260.30, 1577678.70 Y =

Pamene ndikufunika kuwamasulira kuti zikhale ndi maulendo aatali, ndigwiritsa ntchito tsamba ili kuyambira mnzathu Gabriel Ortiz Iwo ali kusiya tsamba lanu. Pa malo Ine kusankha spheroid, mu nkhani yanga 1866 Clarke, ndiye malo, ndilo 16, kumpoto kwa dziko lapansi (N) ndi ndalama ntchito.

Popeza Google Earth ikupempha kuti ndipatse detayi, ndikusintha masekondiwo mpaka kugawa ndikugawa magawo makumi asanu ndi limodzi, ndikufanana ndi maminiti ndi ndalamazo. Njira yofananayi imayendetsedwa ndi makonzedwe anaiwo, osati kuzungulira chifukwa mu mawonekedwe ophatikizirayi a decimal ya yachiwiri amatanthawuza kutalika kwake. Mukhozanso kuchita izi ndi pulogalamu yapadera, pali ambiri kunja uko, si nkhani ya positi.

Kulowetsa fano ku Google Earth

7 Tsegulani Google Earth ndipo mupeze malo ochepa m'dziko limene orthophoto lidzakhala; Ndikuganiza kuti Google Earth inatseka chifukwa imagwiritsa ntchito zambiri.

8. Sankhani “kuwonjezera fano anakuta", mumayang'ana chithunzicho mumsakatuli ndikuchipatsa dzina lothandiza pazolinga zanu

9. Mu tsamba lotsiriza la gulu la (malo) Inu kulowa ndondomeko zinayi madigiri decimal akamagwiritsa, sasamalira kufufuta chizindikiro digiri.

10. Tsopano kuyesera mawonedwe mu dera, ndi kuona ortho ntchito; A chizindikiro chabwino ndi bokosi ali anapangira fano.

11. Mu ndondomeko ya Mawerengedwe Anthawi, pamwamba pa ma tabu a gululi mukhoza kusankha mandala mtengo, ndiye "kuvomereza" njira ndipo ndi zimenezo.

Potsatira, tiyesa kutsogolo, kukopera chithunzi cha Google Earth ndikupanga georeference. Bwino ndi inu mundidziwitse ngati ndikukutumizirani uthenga wosalongosoka uthenga :) :).