Siffofin GIS na yau da kullum, me yasa ba su sanannun ba?

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 bada 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 haɓaka, suna koya kawai, ba tare da masu aiki na yau da kullun na nazarin sararin samaniya ba, sarrafa hoto, canza bayanan raster zuwa vector ... waɗannan abubuwan da GRASS keyi sosai. Tabbas samar da horo na GRASS ya kamata ya zama da sauƙi, kusan awanni 24, amma mummunan da'irar cewa akwai ƙarancin buƙatu na waɗannan darussan yana nufin cewa kamfanonin da aka sadaukar don horarwa basu shirya tarurruka kan wannan batun ba. Kada mu faɗi game da sauran shirye-shiryen 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 kuɗi mai yawa.

gis esri

2 Yana da sauki a hack fiye da koya
A bayyane yake cewa ESRI da AutoDesk sun shahara saboda fashin teku ya ba su hannu ... ko ƙugiya. Kodayake suna da ƙarfi, bambance-bambancen kuma babu shakka suna da kayan aikin tallafawa ta hanyar kamfani mai daraja, karamin ko ƙaramin kamfani da aka sadaukar da shi ga yankin zane ya kamata saka hannun jarin dalar Amurka $ 48,000 a cikin kayan ESRI kawai don fara sashen ci gaba na masu amfani da 5 ( ArcGIS, ARCsde, EdC EdC, ARC IMS ... ba tare da GIS Server ba). Don haka dandamali na bude bulo mai kyau ne ga kamfanonin da aka sadaukar da su don bunkasa, amma masu sarrafa kayan yau da kullun waɗanda za su yi amfani da tebur kawai ... za su sanya faci a cikin ido, kuma suna kashe $ 1,500 akan layi :).

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 bane. Don haka, muna amfani da kayan aikin da suka kashe $ 4,000 kawai don ci gaba da tsare mu Geek, kodayake yawancin masu amfani basu da lasisin software, amma kamfanoni.

... a ƙarshe, mun ga cewa ya zama dole mugunta cewa akwai manyan kamfanoni, suna biyan dubban daloli don lasisi don haka bukatar wannan fasaha na dorewa ce. Kuma zai ci gaba da zama mummunan mugunta, don rukuni ya ci gaba da gwagwarmaya daga ɓangaren buɗe ido, kodayake mafi yawan za su ɗauke su Nerds.

5 tana maida hankali akan "Siffofin GIS na kyauta, don me yasa basa sanannun ba?"

  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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