Cov txheej txheem:
Video: Dab tsi yog daim ntawv qhia kev kwv yees hauv geography?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A daim duab projection yog ib txoj hauv kev coj cov nkhaus ntawm lub ntiaj teb thiab tso rau ntawm ib yam dab tsi tiaj tus, zoo li lub computer screen lossis ib daim ntawv. Sib npaug cheeb tsam kev kwv yees sim qhia cov cheeb tsam uas muaj qhov loj tib yam ntawm lub ntiaj teb tib qhov loj ntawm lub daim ntawv qhia tab sis tej zaum yuav distort tus duab.
Ib yam li ib tug yuav nug, 4 hom phiaj xwm phiaj xwm yog dab tsi?
Cov pab pawg ntawm cov phiaj xwm phiaj xwm no tuaj yeem faib ua peb hom: Gnomonic projection, Stereographic projection thiab Orthographic projection
- Gnomonic projection. Gnomonic projection muaj nws keeb kwm ntawm lub teeb nyob rau hauv nruab nrab ntawm lub ntiaj teb no.
- Stereographic projection.
- Orthographic projection.
Tsis tas li ntawd, 5 daim ntawv qhia kev kwv yees yog dab tsi? 50 Daim Ntawv Qhia Cov Hom Phiaj: Daim Ntawv Qhia Txog Kev Pom Zoo
- Cylindrical Projection: Mercator, Transverse Mercator thiab Miller.
- Conic Projection: Lambert, Albers thiab Polyconic.
- Azimuthal Projection: Orthographic, Stereographic thiab Gnomonic.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog daim ntawv qhia kev kwv yees hauv GIS?
A daim duab projection yog ib txoj kev ua lej siv los hloov tag nrho lossis ib feem ntawm qhov nkhaus ntawm lub ntiaj teb mus rau qhov chaw tiaj tus. daim ntawv qhia . Cov txheej txheem ntawm flattening lub ntiaj teb ua rau distortions nyob rau hauv ib los yog ntau tshaj ntawm cov nram qab no spatial zog: nrug. Thaj chaw. Cov duab.
Yuav ua li cas lawv ua daim duab qhia kev?
Tsim ib daim duab projection feem ntau yog cov txheej txheem lej uas lub khoos phis tawj siv algorithms los txhais cov ntsiab lus ntawm tus kheej mus rau cov ntsiab lus ntawm lub dav hlau. Tab sis koj tuaj yeem xav txog nws li kev luam cov yam ntxwv ntawm lub ntiaj teb mus rau ib qho nkhaus uas koj tuaj yeem txiav qhib thiab nteg tiaj tus - lub tog raj kheej lossis lub khob hliav qab.
Pom zoo:
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