Qib Curves ntawm Polylines (2 Kauj Ruam)

Nyob rau hauv tus ncej tas los peb tau georeferenced tus duab uas muaj kev nkhaus, tam sim no peb xav hloov lawv Tshwmsim ntawm 3D.

Luam theej duab

Rau qhov no muaj cov kev pab cuam uas yuav luag automate tus txheej txheem, xws li Autodesk Raster Tsimsib npaug ntawm Descartes hauv Bentley los sis ArcScan ntawm ESRI. Hauv qhov no kuv yuav ua nws ntawm ko taw, kos duab polylines.

Lawv yuav tsum tsis txhob nrog smartlines, tab sis nrog qee cov qauv.

Nws raug nquahu kom tsim qib nrog cov npe ntawm cov kab loj. Pab rau visuals.

Nws yog preferable ua hauj lwm nrog cov kab ntawm thickness ntawm 0.30 tau pom tau qhov ua ntej.

Yog xav pom cov tuab ntawm cov kab, tus khawm LWT yuav tsum tau qhib kom ua.

Soften thiab sib sau ua ke cov curves.

Qhov no tsis yog ib txwm tsim nyog, tab sis rau kev kawm, cia saib seb nws tau ua li cas. Nws tshwm sim hais tias qee qhov polylines tsis tuaj yeem koom nrog vim tias qhov lus txib tau cuam tshuam, lossis peb tau ua qee lub kaum ntse me uas tsis muaj kev sib tw nrog cov nkhaus.

• Txoj kev hloov kho cov lus tshaj tawm no yog qhib kom ua pedit
• Ntau txoj kev xaiv raug xaiv, nrog tsab ntawv M thiab ces nkag mus
• Tag nrho cov polylines uas peb cia siab tias yuav kho yog raug xaiv
• Peb siv J los koom
• Peb siv S los muag muag

Taw kom nce rau lub polylines
Koj yuav tsum chwv txoj kab nkhaus, ib qho los ntawm ib qho, ua kom cov khoom ntiag tug thiab muab qhov nce sib npaug. Hauv qhov no, txij li lawv txhua 25 centimeters, kab nkhaus ntsuab yuav yog 322, thiab cov hauv qab no rau mus rau xiav yuav 322.25, 322.50, 322.75

Cov xwm txheej ntawm cov neeg xilethi-aus, saib cov qauv siv los paub txog tus cwj pwm ntawm thaj chaw ntawd. Vim li no, cov tseem ceeb yuav tsum tau muab tso rau hauv cov xim sib txawv.

Koj tuaj yeem tshawb xyuas tau tias tag nrho cov nyob nrog kev nce, pom qhov isometric saib.

Saib> 3D Views> NE Isometric.

Hloov cov polylines rau theem curves.

Ua li no, peb mus rau sab laug vaj huam sib luag, hauv lub tab Prospector, thiab peb tsim ib qho tshiab nto, ntawm hom TIN.

Ntawm no, thaum lub qhov dej npau tsim, koj tuaj yeem pom cov khoom, ntawm cov uas tshwm Qhov ncauj qhov ntswg, WatershedsThiab DeffinitionsCov. Nov yog qhov kev ntsuas ua qauv qhia rau contour (Sib tham).

Txoj cai khawm tiav Sib thamces Ntxiv.

Nyob rau hauv qhov kev piav qhia peb yuav muab tso Scanned Curves, thiab ces peb ua okCov. Tom qab ntawd peb xaiv txhua kab ntawv sau uas peb tau khawb.

Pom li cas los ntawm muaj, triangulation yog generated.

Kho cov khoom ntawm cov curves.

Ib qho kev nthuav dav tseem ua rau kev poob siab thaum ua tiav rau thawj zaug. Thiab nws yog, hais tias cov contour kab zoo li tsis pom, tab sis nws yog qhov teeb meem ntawm cov khoom xa tawm.

Rau qhov no, nws yog ua kom muaj cai khawm nas thiab peb xaiv Kho kom raug rau sab nraud styleCov. Hauv vaj huam sib luag no, peb xaiv lub tab Sib thamCov. Hauv Contour Intervals, peb tau xaiv tib lub luv ua daim phiajcim qauv, los xyuas seb puas tsav puas yam mus zoo.

Lub ntsiab curves rau txhua 1.00 thiab cov theem nrab curves rau txhua 0.25.

Thiab nws muaj nws. Nws yog qhov tseeb tias qhov kawg muaj kev kho mob kom ua, vim hais tias cov phiaj xwm sim kaw qhov ciam Piv txwv tias yog tsis muaj kev ncua nrog lwm daim ntawv. Peb mam li pom yog tias nyob rau lwm daim ntawv tshaj tawm peb piv nrog Google Earth cov ntaub ntawv thiab txhawb cov neeg tuaj ncig tebchaws uasi ntawm cov phooj ywg Cov kab lus.