Kuyesera kulondola kwa deta yapamwamba ya Google - Kudabwa!

Google Earth imapereka mwayi wopeza deta yanu yapamwamba ndi makina a Google Elevation API. Zomangamanga Zamagulu, zimagwiritsira ntchito mwayi umenewu ndi zatsopano za Satellite mpaka pamwamba. Ntchitoyi ikukuthandizani kusankha malo ndi mtunda pakati pa mfundo za gridiyo, imabweretsanso pamwamba ndi mapiritsi a mlingo wophatikizidwa ndi mapulogalamu a Civil Site Design ndi chithunzi chamlengalenga.

Lance Msidlow wa ChasmTech LLC yakhazikitsa vutoli ya ntchito yomwe inasindikizidwa mu Magazini ya TwinGEO

Nthaŵi zonse ndimakhala ndi chidwi chodziŵa kuti zolondola za Google ndi zolondola. Panali maulendo awiri ogwiritsidwa ntchito omwe ndinali nawo m'maganizo:

  • Kulingalira / kukonzekera koyambirira kwa magawo atsopano.
  • Kupeza zojambula zowonjezerapo za baseni kuti mufufuze zamagulu a madzi osefukira ndi HEC-RAS 2

Pofuna kuwunika, ndinasankha malo awiri:

  • Tsamba la 1 linali gawo lalikulu kwambiri ku Dunedin, Florida. Pachifukwa ichi, ndakatulutsanso ndikusintha pa 2 mfundo za LiDAR zochokera pa webusaiti ya NOAA.
  • Tsamba la 2 linali malo ogulitsira malonda ku Lake County, Florida, kumene tinkafufuza deta mu gridi la 100, komanso kufufuza zambiri za zowonongeka.

Ntchitoyi satesi kuti ipitirire, malo opangira ma test awiriwa osachepera mphindi 10 iliyonse. Mawonedwe opangidwa kuchokera ku deta yapamwamba ya Google anali yolondola modabwitsa poyerekeza LiDAR ndi data yofufuza.

Komabe, zingakhale zothandiza kwambiri ngati Google inapereka chitsimikizo ndi tsiku la deta yanu.

Zotsatirazo zikufanana kwambiri, komabe, LiDAR yapachiyambi inali miyendo ya 8.5 pansi poyerekeza ndi mlingo wa nyanja yodziwika. Kusintha kumeneku kunawonjezeredwa ku data ya LiDAR ku Civil Site Design isanayambe kukonzedwa, monga momwe tawonetsera m'munsiyi mu kufananitsa kwa deta yapamwamba pakati pa magulu awiriwa. Kutalika kwa 1 / 2, 1 / 3 ndi 2 / 3 ndizofanana. Kutalika kwa kutalika kwapakati ndizitali 3 kuposa za LiDAR data. Kusiyanasiyana kumeneku kumatanthawuzidwa ndi mfundo yakuti mfundozo ndizowopsya m'madera otseguka poyerekezera ndi malo omwe mitengo imayendera. Deta ya satellita inapangidwira mu gridi la 20.

Kenaka, kuyang'anitsitsa zithunzi za satana kumaphatikizidwa kuti ikufanizitsa ndi zochitika zenizeni za m'deralo.

Pachifukwa ichi, mfundoyi iyenera kuikidwa pamwamba pa Google, mwachindunji chosakanikirana ndi mawonekedwe a mitsempha yokhudzana ndi misewu yomwe ilipo komanso malo okhalamo.

Malo Osungirako Zigawo za Malo Ogulitsa

Mu chitsanzo chotsatira cha kugulitsidwa kwa malonda, magwiridwewa adapangidwa kuchokera ku gridi ya 20 yomwe ili ndi deta ya satanala, miyala yofiira inapezedwa kuti adziwe deta mu gridi la 100.

Chidziwitso chakuderali chiribe chofunika, chifukwa deta yapamwamba sichidziwika tsiku. Chisokonezo chinatsirizidwa ndipo kusungidwa kudapangidwira atatha kusonkhanitsa deta ya Google. Mofananamo, dziwe lokhazikika linamangidwa kumpoto chakum'maŵa kwa malowa, pambuyo pa deta yonseyi.

Gwero la data yapamwamba ya Google, amasiyana malinga ndi malo anu. Ngakhale kuti zambiri zokhudzana ndi deta za Google zapamwamba zingapezedwe kuchokera kumalo ena, zimakhalabe zinsinsi.

Ngakhale kusanthula uku sikuli sayansi, kungasonyeze kuti deta ya Google Elevation ndi yovomerezeka ndipo ingaganizidwe chifukwa cha malingaliro a urbanizations kapena kupanga beseni pamwamba, yomwe ingagwiritsidwe ntchito pofuna kusefukira madzi ndi ntchito monga HEC RAS 2.

Yankho limodzi ku "Kuyesera kulondola kwa deta yapamwamba ya Google - Kudabwa!"

  1. Masana abwino:
    Ndizovuta kuyerekezera ubwino / ndondomeko ya deta yolumikizidwa ndi magwero osiyanasiyana.
    Vuto liri mu njira yowerengera / kuwerengera yomwe DEM kapena data ya lidar yomwe ikuwonekera ikupezeka -> mesh step, akuyang'ana Geoidal chitsanzo, mfundo zolamulira ndi zina.
    Ndidzachita maphunziro ku Spain kuti ndiyerekeze ndizomwe ziwerengedwe za IGN, GPS RTK zochuluka zowonjezera zogwirizana ndipamwamba kwambiri komanso google lapansi -> mu blog yanga Ndidziwitsa zomwe zimatuluka ....http://autodidactaengeomatica.blogspot.com/
    Moni ndi zikomo chifukwa cha zopereka zanu ...
    Raúl

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