Daim ntawv qhia chaw kev xaiv, kev xaiv ntawm qhov uas tsis muaj tsawg tshaj li qhov xaiv ntawm tus taw kev nws tus kheej, yog siv los qhia qhov chaw nyob tam sim no ntawm tus neeg siv. Ib qho ntawm cov qauv tseem ceeb thaum xaiv nws yog hom av hauv qhov uas koj yuav tsum tau mus sab hauv.
Cov Lus Qhia
Kauj ruam 1
Cov duab qhia kev hauv nkoj tau muab faib ua ob hom: vector thiab raster. Cov tom kawg yog cov duab coj los ntawm satellite lossis kos rau ntawm cov khoos phis tawj nrog kev tsim qauv ntawm cov khoom topographic. Rau lub peev xwm los txiav txim siab qhov chaw ntawm cov khoom thiab npaj ib txoj kev, cov phiaj xwm thaj chaw yog "hloov chaw" rau cov duab kos.
Kauj ruam 2
Daim duab tso tawm ntawm lub vijtsam thaum txhim kho daim duab qhia chaw dav dav yog qhov zoo nkauj heev, nrog qib qib nthuav dav. Txawm li cas los xij, qhov no yuav tsum muaj ntau qhov chaw hauv lub ntaus ntawv RAM thiab ntawm daim npav nco. Txhawm rau txo lub nra ntawm lub processor, cov haujlwm uas ua haujlwm nrog raster maps yuav tau muab nruab rau hauv qhov chaw.
Kauj ruam 3
Vector maps yog cov sau ntawm cov ntaub ntawv hais txog qhov chaw nyob ntawm ntau yam khoom siv: khw, tsev, tsev ua yeeb yaj kiab, txoj kev junctions, thiab lwm yam. Cov ntaub ntawv no muaj nyob rau hauv cov ntsiav tshuaj uas tshawb nrhiav cov haujlwm ua haujlwm nrog, hloov cov ntaub ntawv rau hauv cov duab kawg ntawm cov tsev thiab txoj kev ntawm lub vijtsam. Daim duab qhia chaw, uas feem ntau cov khoom siv thauj khoom ua haujlwm, thiab txhua tus pib tshawb kev nqa tawm lub cim xeeb me ntsis, nws yooj yim dua rau kev ua haujlwm nrog lawv. Cov txheej txheem kev teeb tsa yuav pab tau yooj yim los ntawm kev teeb tsa 2D, 2.5 thiab 3D daim duab qhia ntawm hom no.
Kauj ruam 4
Cov duab qhia chaw ntawm tuam txhab Belgian lub tuam txhab Tele Atlas, uas feem ntau ntawm cov khoos kas qhia kev muag khoom hauv tebchaws Russia yog raws, hmoov tsis, tsis duav tag nrho nws thaj chaw. Yog tias ib feem ntawm cov cheeb tsam hauv peb lub teb chaws tau kev pab los ntawm cov duab qhia no, cov ntaub ntawv hauv lawv hloov tawm ntawm qhov tsis tsuas yog cov ntsiab lus, nthuav dav ntawm txoj kev me me thiab kev sib hais haum, tab sis kuj tseem muaj feem cuam tshuam.
Kauj ruam 5
Cov khoos kas Navitel siv daim duab qhia Roskartografia, uas qhia txog cov nroog loj ntawm European thiab Asian hauv tebchaws Russia. Lawv tau hloov kho tas li, lawv tus lej tau nce zuj zus: ib zaug txhua rau lub hlis, Navitel rov ua nws cov chaw pov tseg nrog lub nroog ntau lub nroog.
Kauj Ruam 6
Thaum xaiv daim duab qhia chaw, qhov loj tshaj plaws yog kom paub qhov chaw koj yuav siv tus kws tshawb xyuas qhov chaw feem ntau. Lub nroog thiab cheeb tsam uas koj xav tau yuav kos tau txhua yam ntawm qhov screen, thiab tus so tuaj yeem nthuav tawm txog lub ntsej muag. Los yog tag nrho lub teb chaws yuav qhia yam txheeb ze, nrog txoj kev me thiab txoj kev loj. Qhov thib ib yog qhov tsim nyog rau lub nroog tus neeg nyob hauv uas tsis tshua yoojyim nws thaj chaw; tom kawg yog rau tus hlub ntawm kev lag luam lossis cov neeg ncig chaw.
Kauj Ruam 7
Them sai sai rau qhov ua tau zoo thiab zaus ntawm daim ntawv qhia hloov tshiab, theem ntawm qhov tseeb thiab kev ntseeg tau ntawm daim npav cartographic yuav nyob ntawm qhov no. Yog tias qhov hloov tshiab tshwm sim tsis ntau tshaj ib xyoos ib zaug, koj yuav tsum tau nkim sijhawm tsis tau txais cov ntaub ntawv kom raws sijhawm txog kev ntxuav thiab kev kaw.
