Iiplatifti ze-GIS zamahhala, kutheni zingabonakali?

Ndiyishiya indawo evulekile ukucinga; indawo yokufunda ibhulogi imfutshane, ngoko ndiyayilumkisa, kuya kufuneka sibe yinto elula.

Xa sithetha nge «izixhobo ze-GIS zamahhala«, Amaqela amabini amajoni avela: uninzi olukhulu olubuza umbuzo
... kwaye yintoni ezo?
... kwaye kukho abasebenzisi babo?

Nangona iincinci zitholakala ngaphesheya kwesiteji, zinemibuzo efana nale:
... Ndenza okungakumbi ngaphandle kokuchitha imali

Nazi ezinye zezizathu zokuba iipulatifomu zamahhala zingekho kwifesenti yabasebenzisi abaninzi be-GIS.

1. Ikhefu lokufunda
ingca Kwimeko GRASS, ukunika umzekelo, esi sixhobo sisebenza kunye neLuxux kunye neWindows, enayo API kwiC well ziweyo, onayo abaqeqeshiweyo ngokugqibeleleyo, emva kokuvavanya siqinisekisa ukuba yenza imisebenzi ye-ARCGis, kunye nezandiso zayo ezininzi ezixabisa amawaka eedola.

... kodwa ngubani oninika iklasi ye-GRASS kwilizwe laseLatin America?

Andiyathethi ngokuqeqeshwa kwabaphuhlisi, bafunda bodwa, ngaphandle koomatshini abaqhelekileyo bokuhlalutya kwendawo, ukucwangciswa kwezithombe, ukuguqulwa kwedatha kwii-vector data conversion ... ezo zinto i-GRASS yenza kakuhle. Ngokuqinisekileyo ukubonelela ngoqeqesho lwe-GRASS kufuneka kube lula kakhulu, malunga neeyure ze-24, kodwa isangqa esichukumisayo sokuba kukho imfuneko encinane kulezi zifundo kuthetha ukuba iinkampani ezizinikezele ekuqeqesheni azicwangcisi iinkomfa kulo mbandela. Masingathethi ngezinye iiprogram ezikhululekile okanye ezingenasiphelo ezifana ne-gvSIG, intlakohlaza, ISaga okanye iJump engaziwa.

Ngoko ukuba i-curve yokufunda ixhaphake kakhulu yenza abasebenzisi baxabise ... ngendlela efanayo neLuxux ikhululekile, kodwa inkonzo yaseRedHat exhaswe kakuhle ibiza imali eninzi.

gis esri

2 Kulula ukukrhaqha kunokufunda
Kucacile ukuba i-ESRI kunye ne-AutoDesk bayathandwa kuba ubugqwetha banike isandla ... okanye ikhonkco. Nangona zinamandla kakhulu, okwahlukeneyo kwaye ngokuqinisekileyo usekelwe kakhulu kwinkampani owaziwayo, inkampani micro okanye ezincinane enikelwe zokuzoba izixhobo ndawo kufuneka imali iimveliso ubuncinane $ 48,000 ESRI kuphela qala isebe lophuhliso kwabasebenzisi 5 ( I-ArcGIS, i-ARCsde, i-ARC Editor, i-ARC IMS ... ngaphandle kwe-GIS Server). Ngoko namaqonga umthombo olukhamisileyo itsala elungileyo kwiinkampani abenza ekuphuhliseni, kodwa abasebenzi eziqhelekileyo kunye nemisinga ezisebenzisa desktop kuphela ... isiziba obekwe kwi iliso, kwaye bachitha $ 1,500 :) online.

i-autocad imephu 3d

3 Kungcono ukuhamba kunye nezona ziwayo kunokuba zilungele.
Sisabona esi siko xa kufikelele ekusebenziseni imali, umsebenzisi uyazi ukuba iMac ibhetele kunePC, ukuba iLuxu ingcono kune-Windows, ukuba ezinye izixhobo ze-CAD zingcono kune-AutoCAD; ukwenzela ukuba ezi ziqonga ezincintisana noDavid noGoliyati zihlala ezandleni za "khetha abasebenzisi" abahlawula amanani afanayo.

Nangona kumncintiswano phakathi "ngokukhululekile" kunye "neendleko", udonga luba lukhulu, ngaphezu kweyodwa ndahamba kuthathwa ngabantu abathandekayo, ngokusebenzisa i-Manifold ... nangona ikhululekile. Ngoko, sisebenzisa izixhobo ezibiza i-$ 4,000 nje ukusigcina iGeek, nangona abaninzi abasebenzisi bengenalayisenisi yesoftware, kodwa iinkampani.

... ekugqibeleni, sibona ukuba kuyimfuneko ebalulekileyo ukuba kukho iinkampani ezinkulu, ukuhlawula amawaka eedola kwilayisenisi ukwenzela ukuba imfuneko yale teknoloji igcine. Kwaye kuya kuqhubeka yinto embi ebalulekileyo, ukuba iqela liqhubeke lilwa ukusuka kwicala lomthombo ovulekileyo, nangona ininzi iqwalasela iiNerds.

Iimpendulo ezi-5 ziye kumaqonga amaGIS asimahla, kutheni zingaDumile?

  1. Ukuphendula umbuzo owawuthunyelwe ngeposi:

    I-GIS ehamba kwi-Apple:
    -QGIS. Le yona yakhiwe kwi-C ++
    -GvSIG. Yakhelwe kwiJava, into enomda kwi-Mac ngenxa yokuba iqhuba njengohlobo oluphathwayo. Ukusetyenziswa kwayo kakhulu kwiLinux nakwiWindows
    -Vula iTsiba. KwiJava, kodwa ngaphambi kwale gvSIG iyabaluleka.

    Ezinye iinketho zisebenza kwiiparalells, ezibangela ukuba izicelo zeWindows ziqhube kwi-Mac.

    Zam iingcebiso:

    Hlanganisa i-gvSIG kunye ne-SEXTANTE, kulabo abangesabi iJava
    Hlanganisa iQGIS kunye ne-GRASS, kwabo bakhetha iC ++

    Ukuphuhlisa iwebhu

    GeoServer yeJava
    MapServer okanye iMaphuGuide ngaphezu kweC ++

  2. Kulungile Jc. Esi sithuba sivela kwi-2007, okwangoku sibone ukuvela kwemodeli evulekileyo, kwaye sonke silindele ukuba iziphumo zayo zokugqibela zizinzile.

    ukubingelela

  3. Ndiyicinga ukuba lixesha le-software yomthombo ovulekile, ukuba yintoni efunekayo kukuba kukho uluntu oluphuhlisa.
    Kwimeko ye-gvSIG, olu luntu lusebenza kakhulu kwaye lwandisa ngesantya esikhulu, kunye nekhosi zoqeqesho kwiindawo ezininzi kunye nenkxaso yobugcisa. Kuyinyaniso ukuba izixa ezikhulu inkqubo yolwazi uyehla kwaye mhlawumbi ArcGIS okanye nayiphi na enye software kwegunya ikulungele ngcono ukusebenza ngcono. Kodwa ke umbuzo kukuba balungiselelwe njani data, okt ukuphunyezwa kwe-GIS ka-zolawulo oluntu kunye namashishini olukhulayo, kwaye ntsingiselo kukuba onke umvelisi lolwazi umzobo up inkcazelo yayo kwiinkqubo kwaye walibeka eziqhelekileyo kwizibonelelo zedatha, ngokuthotyelwa kwemigangatho (i-WMS, i-WFS, njl. njl.) apho endaweni yokugxininisa idatha, zihlukeneyo kumaseva abelana ngolwazi, kunye naloo mqulu womsebenzi, isofthiwe yomthombo ovulekile, njenge-gvSIG, ebhaliwe kwiJava, ukuba iyincedo.
    Ndiyathemba kwaye ndibetha kwi-software yomthombo ovulekileyo, kuba kwezinye iindidi zemihlaba, ithatha umhlaba kwiprosoftware yangasese, (isakhelo esinjengeDrupal, i-CMS WordPress, elgg, njl.
    Ixesha elizayo lixhomekeke ekuxhumeni nasekuhlanganisweni kwazo zonke izixhobo zesistim evulekile, ekugqibeleni uRichard Stallman uya kulungile.

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