CartografiaGeospatial - GIS

I-projection engekelwe ezithombeni

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Eminyakeni embalwa edlule, engqungqutheleni yaminyaka yonke “Ukuthunga nokuMephu” wase-United States ngikhumbula ngibona omunye walabo ababhemayo abakushiya uphelelwe amazwi, futhi hhayi nje ngoba isiNgisi sethu semfundo asihambisani ne-gringo caliche. Bekuwumbukiso kaKevin Sahr, uJon Kimerling noDenis White embukisweni wabo “I-Geodesic Discrete Global Grid Systems", okusho ukuthi ngolimi lwethu lwesiLatini:

I-projection engekelwe ezithombeni.

Umsebenzi omkhulu wabakhi be-geodesy kwakuwukujwayelanisa indawo eyi-hemispherical nomkhiqizo wokugcina wesimo esingunxande, cishe wonke ama-geodesic projections acatshangelwa esimisweni sokuqala esadalelwa sona, futhi "ukuphrinta amamephu", okungukuthi kungani cishe zonke lezi zilinganiso zama-ellipsoid, endaweni zicishe zibe unxande futhi isizathu sakhe esiyinhloko eminyakeni eyishumi nanhlanu edlule bekuwukukwazi ukuphrinta amamephu amabili esikalini esifanayo futhi ukwazi ukuwahlanganisa emaphethelweni awo.

Isiphakamiso salaba banumzane sisekelwe embonweni wokuthi kulesi sikhathi kwezobuchwepheshe, ukuphrinta akusesona isizathu sodwa esenza sihlukanise i-quasi-spherical geometry yomhlaba, kodwa kunalokho ngenxa yezinhloso ze-geolocation; Njengoba amathuluzi okubona ngeso we-GIS/CAD nezinhlelo zokusebenza zeselula zijwayela ukusetshenziswa kobuchwepheshe, asikho isidingo sokubala okuyinkimbinkimbi kwe-geolocation. Lokhu kuhlaziya kwenza ukuzibophezela ukucabangela iyunithi encane yokuhlonza i-geodesic kunxantathu onemiphetho egobile, okuwukulungiswa okungatholwa unxantathu ngenxa yokugoba komhlaba, ukuze ungabi lutho ngaphandle kwesegimenti yobuso, yemiphetho elungisiwe. egoqweni lomhlaba futhi isikhungo saso esihambisana nesikhungo esicatshangelwayo somhlaba, noma umugqa omaphakathi we-spheroid.

Umusi omuhle ophikisana nalokho okusibiza ukuze siqonde isimiso seMercator esiqeshini seGeodey.

Golgi Alvarez

Umbhali, umcwaningi, uchwepheshe wamamodeli wokuphathwa komhlaba. Ubambe iqhaza ekucabangeni nasekusetshenzisweni kwamamodeli afana nalawa: Isistimu Kazwelonke Yokulawulwa Kwezakhiwo i-SINAP e-Honduras, Imodeli Yokuphatha Yomasipala Abahlangene e-Honduras, Imodeli Edidiyelwe Yokuphathwa Kwe-Cadastre - Registry e-Nicaragua, Uhlelo Lokuphatha lwe-Territory SAT e-Colombia. . Umhleli webhulogi yolwazi lwe-Geofumadas kusukela ngo-2007 futhi umdali we-AulaGEO Academy ehlanganisa izifundo ezingaphezu kwe-100 ngezihloko ze-GIS - CAD - BIM - Digital Twins.

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