Google Earth; mappers yimifanekiso

I-Google Earth, ngaphandle kokuba isixhobo sokuzonwabisa kuluntu jikelele, isiye isixhaswa ngokubonakalayo kwiprographic, kokubili ukubonisa iziphumo nokujonga ukuba umsebenzi owenziwayo uhambelana; ungathethi njengethuluzi lokufundisa nge-geography okanye kwiiklasi ze-geodesy.

Kule meko ndiza kunceda i-Manifold GIS ukwakha i-quadrants kunye ne-Google Earth ukujonga iziphumo, ukusebenzisa inzame esiyilungile kunye noCristian Mejía, umcebisi waseSure oncediswa ngamava. Ngokomgaqo, kufuneka sidibanise indawo esiya kusebenza kuyo, kwimeko yeBolivia, ifumaneka phakathi kwe-19, i-20 kunye ne-21; kunye nemigangatho ye-8 kunye ne-24 degrees, e-southern hemisphere. Konke oku kunokukhishwa kwiGoogle Earth ngokuhlola okulula, utshintshe ukhetho ukuyijonga kwi-UTM ukujonga ngokucacileyo iindawo kunye neendawo zokuhlala ukujonga ukulandelana kunye nobude obude.

1 I-quadrant yale mimandla emithathu inomdla.

Kwi-Manifold kwenziwa kunye Jonga> igridi

Emva koko sibonisa ukuba silindele i-quadrant ehamba ukusuka ku-longitude -54 ukuya kwi-72, ayinayo ngenxa yokuba ehlala entshona. Futhi ububanzi esilukhethayo phakathi kwe -8 kunye ne-24, njengoko bengenanto yokuba phantsi kwe-equator.

Siyabonisa kwakhona ukuba sifuna ukwahlula njani; umlinganiselo opheleleyo yi-18 (3 Izixhobo zee-degrees ze-6) ubude kunye ne-16 (amaxesha e-2 ama-8 degrees) kwi-latitude. Sibonisa ukuba uyakholelwa tile endaweni yeendlela ezilula. Kwaye kukho imimandla emithathu, njengoko iphezulu kwiGoogle Earth,. Ukuyivavanya, sichaneka ngokuchanekileyo kumgca kunye nokuthumela ngaphandle kwi-kml, ukwenza into ebonakalayo ingqiqo, ukuba kwi-laboratory geodesy ye-20 kwiminyaka edlulileyo kwakunzima ukuyiqonda.

2 Iimephu ze-1: 250,000

Ngokomzekelo, masisebenze indawo ye-20 ngendlela efanayo. Kule meko, i-1: iifayili ze-250,000 zinomlinganiselo we-1.5 x i-1 degree, elingana nokuhlukanisa yonke indawo kwisiqalo se-16 x 4 tile.

Siyabonisa ukuba ngoku sifuna kuphela igridi ephakathi kwe-60 kunye ne-66 ubude, kwaye ububanzi ukusuka kwi-8 ukuya kwi-24; oku kuthetha ukuba iidishu ze-6 ziya kwahlulwa kwii-1.5 kunye namacandelo okuhamba kwiiklasi ze-1.

Ukwenziwe: ukujonga, ukucofa ngokuchanekileyo nokuthumela kwi-kml. Kwi-lat / eside eside ungabona ukuba imigca iyafana negridi yeGoogle Earth.

Ukongeza i-centroids zonke iileyile zikhethiweyo, kwaye umsebenzi owenziwe nge-geopreocessing usetyenziswa, njengoko kuboniswe kumzobo olandelayo. Akukho imfuneko yokwenza olunye uluhlu, ngokuba i-Manifold isekela iintlobo ezahlukeneyo zezinto kuyo, ukuba ufuna ukuthumela kwenye, akufanele ikhethwe ngenxa yokuba idalwe ngokukhetha ukwenziwa ukuze kube kuphela uthinte / unamathise.

3 Iimephu ze-1: 100,000

Kule meko, akukho nto iguqula ngaphezu kweendawo, idijithali ze-1.5 zahlulwe zibe ngamacandelo amathathu, yingakho zihlala 0.50 x 0.50.

4 Iimephu ze-1: 50,000

Okungenakukuthi, uluhlu olulandelayo luhlulwe kwii-0.25 x 0.166667, kwi-2 x XUMUMX, njengoko kuboniswe kwisiphumo sokugqibela. Ngakwesokudla ngabahlulo, ngaphakathi kwifolda kunye nezantsi kwabo kwimephu, enjalo njengoko sichaza ngelinye ilanga.

Yaye yile ndlela eya kuba ngayo kwiGoogle Earth, sinokukwenza konke kanye kanye, kunye nendawo yonke, nangona kungenakulungeleka kuba siya kufuneka siyiguqule kwi-UTM kwaye le nto yenziwa ngamacwecwe ahlukaniswe yindawo.

Kuyinto ehlekisayo ukuba ifayile yefayile .fap equle zonke iifayile, imilinganiselo ye-85 kb neGoogle Earth 59 kb.

Apha ungayilanda ifayile kwi .fom ifomathi kwi-GIS yeMpawu kunye .kmz kwiGoogle Earth.

Ngamafutshane, ukwenza oku ngaphandle kweGoogle Earth bekuya kufuna ixesha elingakumbi lokuhlola okungabonakaliyo kunye nokungathandabuzeki kwephutha elibonakalayo. Imifanekiso yeGoogle abayi kuba nechanekileyo, kodwa njengethuluzi lokufundisa lingaba luncedo kakhulu, kwinqanaba lokuba ukuchaneka kwalo kuthatha iindawo eziqhelekileyo ukuba zibe ziincinci ngaphantsi kweempahla zeeofisi.