Ifayela elinesandiso sefayela le-HGT yisifayela sedatha ye-Shuttle Radar Topography Mission (SRTM).
Amafayela we-HGT aqukethe amamodeli wokuphakama kwe-digital, okuyizithombe ze-3D zobuso - ngokuvamile iplanethi, etholakala ngesikhathi se-Shuttle Radar Topography Mission (SRTM) yi-NASA kanye ne-National Geospatial-Intelligence Agency (NGA).
Kusetshenziswe lapha, "i-HGT" isifushaniso nje sokuthi "ukuphakama." Ifayela le-.HGT livame ukubizwa ngokuthi ubude nobubanzi esithombeni, ngesilinganiso esisodwa. Isibonelo, ifayela le- N33W177.hgt lizobonisa ukuthi lihlanganisa idatha yezindinganiso ezingama-33 kuya ku-34 eNyakatho namazinga angu-177 kuya ku-178 eNtshonalanga.
Qaphela: Amafayela we-SRTM Data awasebenzanga namafayela e- SRT .
Indlela Yokuvula Ifayela le-HGT
Amafayela we-HGT angavulwa nge-VTBuilder, i-ArcGIS Pro, ne-Desktop Safe FME Desktop. I-DG Terrain Viewer isebenza futhi, kokubili iWindows ne-Linux. Ungafaka futhi ifayela le-HGT ku-Blender nge-add-blend-osm addon.
Qaphela: Uma usebenzisa i-VTBuilder ukuvula ifayela lakho le-HGT, akukwenziwanga ngaphakathi kwento yeMenyu yeProjekthi evulekile evamile. Esikhundleni salokho, kufanele ungenise ifayela kulolu hlelo ngokusebenzisa Layer> Import Data> Imenyu yokuphakama .
Bheka i-homepage Mission yaseShuttle Radar Topography, ebanjwe yi-NASA Jet Propulsion Laboratory, yezo zonke izinto eziyisisekelo kwi-SRTM idatha, efika kwifomethi ye-HGT. Idatha ngokwayo ingalandwa kusuka ekhasini le-SRTM elaphethwe yi-US Geological Survey.
Kukhona nokubukeza okukhulu, lapha, kwe-SRTM kanye nedatha ekhishwe. Iwebhusayithi ye-USGS nayo inolwazi oluthe xaxa, lapha , ku- PDF .
Ithiphu: Uma unayo ifayela le-HGT olaziyo akuyona ifayela le-SRTM Data, noma alisebenzi nanoma iyiphi isofthiwe oyifunayo ngenhla, kungenzeka ukuthi ifayela lakho elithile le-HGT empeleni kufomethi ehluke ngokuphelele . Uma kunjalo, sebenzisa umhleli wombhalo ukuvula ifayela. Ngezinye izikhathi , kunombhalo obonakalayo ngaphakathi kwefayela elingakusiza ukuthi uqonde ukuthi yiluphi uhlelo olusetshenziselwa ukwakha ifayela, okumele likuqondise kolwazi olubanzi ngesakhiwo.
Uma uthola ukuthi uhlelo kukhompyutheni yakho luzama ukuvula ifayela le-HGT, kodwa uhlelo olungalungile noma uma ngabe unomunye uhlelo olufakiwe oluvulekile lawa mafayili, bheka indlela yethu yokushintsha uhlelo oluzenzakalelayo lwe-Exactsion File Extension tutorial for ukusiza ukushintsha lezo zilungiselelo.
Indlela yokuguqula ifayela le-HGT
I-VTBuilder ingathumela ifayela le-HGT kwifayela le-Binary Terrain (.BT). Ukuze wenze lokhu, ngenisa kuqala ifayela le-HGT (I- Layer> Ngenisa Idatha> Ukuphakama ) bese uyisindisa usebenzisa i- Layer> Gcina Layer As ... inketho.
I-VTBuilder ibuye isekele ukuthumela ifayela le-HGT ku- PNG , TIFF , nokunye okunye okujwayelekile, futhi okungavamile, izithombe nezithombe.
Ku-ArcGIS Pro, ngefayela le-HGT evulekile kakade ohlelweni, kufanele ukwazi ukuya ku- Export> Raster kuya kufomethi ehlukile ukuze ulondoloze ifayela le-HGT ngaphansi kwefomethi entsha.
Ezinye izinhlelo ezingenhla zingase ziguqule amafayela we-HGT, futhi. Lokhu kuvame ukwenziwa ngokukhetha okukhipha ngaphandle noma imenyu ye- Save njengeMenyu.