Siffofin GIS na yau da kullum, me ya sa ba su da mashahuri?

Na bar sararin samaniya don buɗewa; sararin samfurori na karantawa takaice ne, don haka sai na damu, za mu kasance da sauki.

Lokacin da muke magana game da «kayan aikin GIS kyauta«, Ƙungiyoyi biyu na sojoji sun bayyana: babban rinjaye da ke tambayar wannan tambaya
... kuma menene waɗannan?
... kuma akwai masu amfani da su?

Yayinda ƙananan 'yan tsiraru suke a gefe na mataki, da amsoshin kamar:
... Na yi karin ba tare da ba da kudi ba

Ga wasu dalilan da yasa tsarin dandamali ba su kasance a cikin tsari na mafi yawan masu amfani da GIS ba.

1. Hanyar ilmantarwa
ciyawa gis A cikin hali na Grass, don ba da misali, wannan kayan aiki yana aiki tare da Linux da Windows, wanda ke da API a C da kyau rubuce, wanda yana da koyawa cikakke, bayan gwada shi mun tabbatar cewa yana da ayyuka na ARCGis, da kuma wasu daga cikin kariyar da suka dace da dubban daloli.

... amma wane ne ya ba ku wata hanya ta GRASS a cikin ƙasar Latin Amurka?

Ba na magana game da horarwa ga masu ci gaba ba, suna koyo kadai, ba tare da yin amfani da su ba na bincike na sararin samaniya, yin amfani da hotuna, raster zuwa fassarar fassarar bayanai ... abubuwan da GRASS ke yi sosai. Tabbas samar da horo na GRASS ya zama mai sauƙi, kusan kimanin 24 hours, amma maƙirarin mugunta cewa akwai ƙananan buƙatun waɗannan darussa na nufin kamfanoni sun sadaukar da horarwa ba su tsara jadawalin akan wannan batu. Kada mu ce game da wasu shirye-shirye kyauta ko kyauta kamar gvSIG, spring, Saga ko Jump da basu da sananne.

Saboda haka gaskiyar cewa tsarin ilmantarwa yana da yawa ya sa masu amfani da tsada ... kamar yadda Linux ke da kyauta, amma sabis na RedHat mai goyan baya yana kashe kudi mai yawa.

gis esri

2 Yana da sauki a hack fiye da koya
A bayyane yake, ESRI da AutoDesk ne m saboda satar da ya dauka su a hannunka ... ko wani gaff. Duk da yake su ne sosai robust, bambance bambancen da kuma lalle sosai goyon baya da wani alhẽri, tabbatattun wani micro ko kananan kamfanin sadaukar da cartographic yanki kayan aikin kamata zuba jari a kalla $ 48,000 kayayyakin ESRI kawai fara up wani ci gaban sashen na 5 masu amfani ( ArcGIS, ArcSDE, ARC Edita, ARC IMS ... ba tare da GIS Server). Saboda haka bude tushen dandamali ne mai kyau janye ga kamfanonin tsunduma a tasowa, amma talakawa da ma'aikata da kuma igiyoyin da cewa yin tebur amfani kawai ... a faci aka sanya a kan ido, kuma ku ciyar $ 1,500 online :).

Taswirar autocad na 3d

3 Zai fi kyau in tafi tare da mafi mashahuri fiye da mafi kyau.
Har yanzu muna ganin wannan al'ada idan aka ba da kudi, mai amfani ya san cewa Mac ya fi PC, cewa Linux ta fi Windows, cewa wasu kayan aikin CAD sun fi AutoCAD; don haka wa] annan dandalin da suka yi gasa da Dauda da Goliath sun kasance a hannun "masu zaɓar masu amfani" wanda suke biya farashin irin wannan.

Ganin cewa a cikin gasar tsakanin "kusan kyauta" da kuma "tsada", bangon ya zama gigantic, fiye da sau ɗaya na tafi dauka ta ƙasar gentile, don amfani da Manifold ... ko da yake ba kyauta ba ne. Don haka, muna amfani da kayan aikin da za su kashe $ 4,000 kawai don kiyaye mu Geek, ko da yake mafi yawan masu amfani ba su lasisi software, amma kamfanoni.

... a ƙarshe, mun ga cewa wajibi ne da cewa akwai manyan kamfanoni, suna cajin dubban daloli don lasisi don haka bukatar wannan fasahar yana ci gaba. Kuma zai ci gaba da kasancewa wani mummunar mummunan aiki, don wata kungiya ta ci gaba da yin fada daga gefen hanyar budewa, kodayake mafi rinjaye za su yi la'akari da su Nerds.

5 Amsoshi zuwa "Siffofin GIS na Kyauta, Me yasa basu da Kyawu?"

  1. Amsar wata tambaya da aka aika ta gare ni ta imel:

    GIS da ke gudana akan Apple:
    -QGIS. Wannan an gina shi akan C ++
    -gvSIG. An gina shi a Java, wani abu da aka iyakance akan Mac saboda yana gudana kamar sigar šaukuwa. Mafi kyawun amfani da shi yana cikin Linux da Windows
    -Da tsalle. A Java, amma kafin wannan gvSIG an fi so

    Wasu zaɓuɓɓuka suna gudana a kan Paralells, wanda ke sa Windows aikace-aikace su gudu a kan Mac.

    Shawarata:

    Haɗa gvSIG tare da SEXTANTE, ga waɗanda basu ji tsoron Java ba
    Hada qGIS tare da GRASS, ga wadanda suka fi son C ++

    Don ci gaba da yanar gizo

    GeoServer don Java
    MapServer ko MapGuide akan C ++

  2. Ok Jc. Wannan matsayi daga 2007, a wannan lokacin mun ga juyin halitta na bude samfurin, kuma dukkanmu muna da tsammanin sakamakon ƙarshe na dorewa ne.

    gaisuwa

  3. Ina tsammanin lokaci ne na kayan aiki don budewa, abin da ake bukata shi ne cewa akwai al'umma da ke tasowa.
    A game da gvSIG, wannan al'umma yana da matukar aiki kuma yana fadada a babban gudunmawa, tare da horon horo a wurare da yawa da goyon bayan fasaha. Gaskiya ne cewa saboda yawancin bayanai da tsarin ke raguwa kuma watakila ArcGIS ko duk wani kayan aiki na musamman ya fi dacewa kuma yana aiki mafi kyau. Amma tambayar ita ce yadda za a tsara bayanai, wato, aiwatar da GIS a cikin hukumomin jama'a da kuma kamfanoni suna girma, kuma al'amuran shine ga kowane mai samar da bayanai don bayyane bayanin su akan tsarin kansu, sa'an nan kuma sanya shi cikin na kowa a cikin bayanan bayanai, ta hanyar bin ka'idodin (WMS, WFS, da dai sauransu) wanda maimakon maimakon rarraba bayanai, ana rarraba su a cikin sabobin da ke rarraba bayanai, da kuma wannan ƙarar aiki, kayan aiki na budewa, kamar yadda gvSIG, aka rubuta a Java, idan yana da amfani.
    Na amince da fare a bude Madogararsa software, saboda a wasu filayen, an cire ƙasar daga cikin mallakar tajirai software (tsarin yadda Drupal, WordPress CMS, elgg. Da dai sauransu)
    Makomar ya kasance a cikin haɗin kai da haɗa haɗin duk kayan aiki na budewa, a ƙarshe Richard Stallman zai kasance daidai.

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