Google Earth; inkxaso yokubonwa kwabadwebi bebala

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-GIS ephindaphindiweyo ukwakha ii-quadrants kunye neGoogle Earth ukujonga iziphumo, ndisebenzisa ithuba lokuzilolonga esilwenzileyo noCristian Mejía, umvavanyi waseSucre oncediswa ngamava. Ngokomgaqo, kufuneka sichaze indawo esiza kusebenza kuyo, kwimeko yaseBolivia, iphakathi kwemimandla ye-19, 20 ne-21; kunye nobubanzi i-8 kunye ne-24 degrees, kwi-hemisphere esemazantsi. Konke oku kunokutsalwa kuGoogle Earth ngokuhlolwa okulula, utshintshe ukhetho ukuyijonga kwi-UTM ukujonga ngokucacileyo iindawo kunye neendawo zokuhlala ukujonga ukulandelana kunye nobude obude.

1. I-quadrant yezi ndawo zintathu zomdla.

Kwi-Manifold kwenziwa kunye Jonga> igridi

Emva koko sibonisa ukuba silindele i-quadrant ehamba ukusuka kubude -54 ukuya -72, azilunganga kuba zikwintshona yelizwe. Kwaye nobude esibukhethayo phakathi kuka -8 no -24, baselugxwayi kuba bengaphantsi kweikhweyitha.

Siyabonisa kwakhona ukuba sifuna ukwahlula njani; umlinganiselo opheleleyo yi-18 (3 Izixhobo zee-degrees ze-6kubude obude kunye no-16 (2 amaxesha 8 degrees) kububanzi. Sibonisa ukuba uyakholelwa kuthi tile endaweni yemigca elula. Kwaye sinemimandla emithathu, njengoko ingaphezulu kwiGoogle Earth,. Ukuyivavanya, cofa ekunene kumaleko kunye nokuthumela kwelinye ilizwe ukuya kwi-kml, okwenza ukuba imeko ebonakalayo ibonakale ukuze kwilabhoratri ye-geodey kwiminyaka engama-20 eyadlulayo kwakunzima ukuyiqonda.

2. Iimephu 1: 250,000

Umzekelo, siza kusebenza kummandla wama-20 ngendlela efanayo. Kule meko, ama-1: 250,000 amashiti anobukhulu be-1.5 x 1 degree, elingana nokwahlulahlula indawo yonke ibeyi-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.

Yenziwe: ukukhangela, cofa ekunene kwaye uthumele ngaphandle kwi-kml. Kwi-lat / umbono omde ungajonga ukuba imigca iyahambelana na negridi yoMhlaba kaGoogle.

Ukongeza ii-centroids, zonke iithayile zikhethiweyo, kwaye kusetyenziswa umsebenzi we-geo-processing, njengoko kubonisiwe kulo mzobo ulandelayo. Akunyanzelekanga ukuba wenze omnye umaleko, kuba Manifold ixhasa iintlobo ezahlukeneyo zento kuyo, ukuba ufuna ukuthumela komnye, akufuneki nokuba uzikhethe kuba zenziwe ngokukhetha kusebenze ukuze kuphela uthinte / unamathise.

3. Iimephu 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

Akufuneki ukuba, umaleko olandelayo wahlulwe waba ngamacandelo e-0.25 x 0.166667, kuba sisahlulahlula saba yimatriki eyi-2 x 3, njengoko sibonile kwisiphumo sokugqibela. Imigca ibonisiwe ngasekunene, ngaphakathi kwifolda nangaphantsi kwayo ngaphakathi kwemephu, enje 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.

Ekugqibeleni, ukwenza oku ngaphandle kweGoogle Earth bekuya kufuna ixesha elininzi lokujonga okungathandabuzekiyo kunye nokuthandabuza kwempazamo enokwenzeka. Imifanekiso kaGoogle abayi kuba nechanekileyo, kodwa njengethuluzi lokufundisa lingaba luncedo kakhulu, kwinqanaba lokuba ukuchaneka kwalo kuthatha iindawo eziqhelekileyo ukuba zibe ziincinci ngaphantsi kweempahla zeeofisi.