Kev kho hniav digital cia siab rau 3D qauv cov ntaub ntawv los tsim thiab tsim kho kho hniav zoo li cov yas, txuas hniav, cog hniav, lossis aligners. Peb hom ntaub ntawv feem ntau siv yog STL, PLY, thiab OBJ. Txhua hom ntawv muaj nws qhov zoo thiab qhov tsis zoo rau kev siv kho hniav. Hauv no blog ncej, cia peb delve rau hauv qhov sib txawv ntawm peb hom ntaub ntawv nrov tshaj plaws hauv kev kho hniav digital.

 

1. STL (Standard Tessellation Language)

STL tau lees paub dav raws li kev lag luam tus qauv qauv rau 3D luam ntawv thiab CAD / CAM daim ntawv thov, suav nrog kev kho hniav digital. Nws sawv cev rau 3D qhov chaw raws li kev sau ntawm daim duab peb sab, txhais cov duab geometry ntawm cov khoom.

Pros
Yooj yim: STL cov ntaub ntawv tsuas muaj cov ntaub ntawv geometry saum npoo ntawm cov khoom 3D, sawv cev ua daim duab peb sab mesh. Tsis muaj xim, textures, lossis lwm yam ntaub ntawv ntxiv. Qhov kev yooj yim no ua rau cov ntaub ntawv STL yooj yim los lis thiab txheej txheem.

Kev sib haum xeeb: STL yog hom kev lees paub tshaj plaws thoob plaws 3D luam ntawv software thiab kho vajtse. Nws yuav luag lav tau tias txhua lub tshuab luam ntawv 3D lossis CAD software yuav tuaj yeem tuav cov ntaub ntawv STL.

Cons
Tsis muaj cov ntaub ntawv xim: STL cov ntaub ntawv tsis suav nrog cov xim, kev ntxhib los mos, lossis lwm yam ntaub ntawv ntxiv, txwv tsis pub lawv siv hauv cov ntawv thov uas xav tau kev pom qhov tseeb lossis cov ntaub ntawv ntxaws ntxaws, xws li cov neeg mob kev kawm lossis kev lag luam.
Metadata txwv: Cov ntaub ntawv STL tsis tuaj yeem khaws cov metadata, xws li kev sau ntawv, kev cai lij choj, thiab qhov chaw, uas yog qhov tseem ceeb rau kev tshaj tawm.

 

 

(STL cov ntaub ntawv xa tawm los ntawmLaunca DL-300 Pintraoral scanner)

 

2. PLY (Polygon File Format)

PLY hom ntawv, yog tsim los ntawm Stanford University, muaj ntau ntau yam piv rau STL. Nws tuaj yeem khaws tsis tau tsuas yog geometry xwb tab sis kuj tseem muaj cov ntaub ntawv ntxiv xws li xim, kev ntxhib los mos, thiab txawm tias cov khoom siv. Qhov no ua rau PLY cov ntaub ntawv tsim nyog rau cov ntawv thov uas yuav tsum tau ua kom pom kev pom zoo, xws li cov qauv kev luag nyav digital lossis virtual sim-ins. Txawm li cas los xij, nws tsim nyog sau cia tias PLY cov ntaub ntawv zoo li loj dua qhov loj, uas yuav cuam tshuam rau kev khaws cia thiab hloov cov ntaub ntawv.

Pros

Versatility:PLY cov ntaub ntawv tuaj yeem khaws cia tsis yog geometry nkaus xwb tab sis kuj tseem muaj cov ntaub ntawv ntxiv xws li xim, kev ntxhib los mos, thiab cov khoom siv, tso cai rau kev nthuav dav pom kev sawv cev.
Cov ntaub ntawv ntxaws:PLY cov ntaub ntawv tuaj yeem ntes cov ntaub ntawv nyuaj xws li qhov kub thiab txias, ua rau lawv muaj txiaj ntsig zoo rau kev tsom xam thiab simulation.

 

Cons

Loj Cov Ntaub Ntawv Loj:PLY cov ntaub ntawv zoo li yuav loj dua vim qhov suav nrog cov ntaub ntawv ntxiv, uas tuaj yeem cuam tshuam kev cia thiab ua haujlwm qeeb.

Kev sib haum xeeb: PLY cov ntaub ntawv tsis tshua muaj kev txhawb nqa los ntawm 3D tshuab luam ntawv thiab CAD software piv rau STL. Qhov no yuav xav tau cov kauj ruam ntxiv ntawm kev hloov dua siab tshiab ua ntej ua.

 

 (PLY cov ntaub ntawv xa tawm los ntawmLaunca DL-300 P)

 

3. OBJ (Object File Format)

OBJ yog lwm hom ntaub ntawv nrov hauv kev kho hniav digital, paub txog nws txoj kev siv dav hauv 3D qauv thiab ua daim ntawv thov. OBJ cov ntaub ntawv tuaj yeem khaws cov ntaub ntawv geometry thiab kev ntxhib los mos, ua rau lawv haum rau cov ntawv thov uas pom qhov tseeb yog qhov tseem ceeb. Nws kev sib raug zoo nrog ntau lub software platforms thiab muaj peev xwm los tswj cov qauv nyuaj ua rau OBJ qhov kev xaiv zoo tshaj plaws rau kev kho hniav simulations thiab kev npaj kho mob.

Pros
Kev ntxhib los mos & xim ntaub ntawv: Zoo li PLY, OBJ cov ntaub ntawv tuaj yeem khaws cov ntaub ntawv zoo nkauj thiab xim, muab cov qauv nthuav dav ntxiv.
Kev sib haum xeeb: OBJ tau txais kev txhawb nqa dav thoob plaws 3D qauv software. Txawm li cas los xij, tsis yog txhua lub tshuab luam ntawv 3D txhawb OBJ cov ntaub ntawv ncaj qha.

Cons
Loj Cov Ntaub Ntawv Loj: OBJ cov ntaub ntawv, tshwj xeeb tshaj yog cov ntawv qhia kev ntxhib los mos, tuaj yeem loj heev, uas tuaj yeem ua rau lub sijhawm ua haujlwm qeeb.
nyuaj: OBJ cov ntaub ntawv tuaj yeem ua haujlwm ntau dua nrog piv rau STL vim muaj cov ntaub ntawv ntxiv uas lawv txhawb nqa.

 

 (OBJ cov ntaub ntawv xa tawm los ntawmLaunca DL-300 P)

Kev xaiv ntawm STL, PLY, thiab OBJ nyob ntawm seb koj xav tau dab tsi los ntawm koj tus qauv 3D. Yog tias qhov yooj yim thiab kev sib raug zoo yog qhov tseem ceeb, STL tuaj yeem yog qhov kev xaiv zoo tshaj plaws. Yog tias koj xav tau cov xim ntxaws lossis lwm cov ntaub ntawv, xav txog PLY lossis OBJ. Raws li ib txwm muaj, nws tseem ceeb heev uas yuav tsum xav txog qhov muaj peev xwm thiab kev txwv ntawm koj cov software tshwj xeeb thiab kho vajtse.

 

Kev xaiv cov ntaub ntawv hom ntawv tsuas yog ib kauj ruam hauv cov txheej txheem ntawm kev kho hniav digital. Txawm li cas los xij, kev nkag siab txog cov qauv no thiab lawv qhov cuam tshuam tuaj yeem pab koj txiav txim siab paub ntau ntxiv thiab thaum kawg xa cov neeg mob zoo dua thiab kho cov txiaj ntsig.