uDig, koyamba

Takhala tikuyang'ana zida zina gwero lotseguka mu GIS, pakati pawo qgis ndi gvSIG, kupatulapo  mapulogalamu opanda ufulu omwe tayesedwa kale. Poterepa tidzachita nawo User-Friendly Desktop Intaneti GIS (uDig), mmodzi mwa iwo amene abwera PortableGIS.

Kumene izo zimachokera

Dig ndikumanga kampaniyo Zotsutsa Kafukufuku, yemwe adalandira mphotho yofunika kwambiri GeoConnections, adayikapo ndalama pazochitikazi ndi zina. UDig ili ndi chilolezo pansi pa GNU LGPL, kampani yomweyi ikuyenera kubwereka PostGIS ndi zopereka zofunika ku Geoserver.

Zida

Ndicho chitukuko chokwanira, kuswa misonkhano yambiri ya zida zamakono, ndi nkhope yofanana qgis.  Zina mwazinthu zake zingatchulidwe:

• Yomangidwa ku Java, pansi pa malo a Eclipse (Monga gvSIG)
• Ufulu wokonza mawonekedwewo ndiwotheka, ukhoza kukoka mawindo pafupifupi paliponse, uwawombere kumbuyo, kukokera kunja ndi mkati, kuwachepetsera ku mabatani ndikusintha momasuka pamphepete mwa mafelemu.
• Kufulumira kwa kuphedwa ndibwino kwambiri (ngakhale kuti ndikukhala ndi Java, ndayesera izo Chotsani Chotsatira Choyamba, ndi Windows XP); Zimayendera Linux ndi Mac, mwachiwonekere ndi ntchito yabwino.
• Ponena za kuwerenga kwa mawonekedwe a vector, ndi zochepa ndi mafayilo ovuta (sichiwerenga dgn, kml, dxf, kapena dwg) koma omwe amasuta (gml, xml) ali. Wachikhalidwe yekhayo amene amawerenga ndi fayilo ya mawonekedwe.
• Ndi mafano a raster amakhalanso ndi malire ake, koma ukhoza kumamatira kumawms ndi ma intaneti ena.
• Malinga ndi mauthenga azinthu zamphamvu, ArcSDE, DB2, MySQL, Oracle Spatial, PostgreSQL/ PostGIS ndi WFS, kotero mwa zina mwa izi mungathe kuphatikizapo vector deta zomwe sangafike m'njira yachizolowezi.
• Gridi, kapamwamba, ndi nthano ndizolumikizidwa ngati kuti ndi zigawo. Izi ndizosangalatsa chifukwa si magwiridwe antchito a mawonekedwe a kutumizidwa koma za data. Ngakhale kusintha kwake kuli kovuta (poyamba kuganizira)
• Lili ndi zinthu zomwe zimapangitsa kukhala zothandiza, monga:
  -kopani / phala de Mawonekedwe (monga zobwezedwa GIS) 
  -nena monga XML en kope
  -chizindikiro chopindulitsa kwambiri, ndi machenjezo a peŵani mavuto ndi makhungu osaonekera, CRT oyang'anitsitsa, mapulojekiti, LCD oyang'anitsitsa, kusindikiza mitundu ndi kujambula.
• Chosangalatsa ndichakuti, chida chimakhala ndi chitsanzo, chomwe chimaphatikizapo anthu aku Canada komanso mizinda, mayiko, nthawi, ndi zithunzi za satellite. Njirayi ndiyabwino kwambiri kumvetsetsa kuthekera kwake pakadali koyamba kuwona, zomwe mapulogalamu ena omwe amatsitsa, kukhazikitsa ndikupanga funso lalikulu ayenera kuganizira:Ndipo tsopano ndikuchita chiyani ndi mabatani awa??
• Kufufuza zosintha pa intaneti ndichinthu china chothandiza chomwe ntchito zina ziyenera kulingalira. Mwa ichi, chofanana ndi gvSIG, pamakhala cholepheretsa pakuwonekera koyamba, ndikuti chuma chomwe chili pazowonjezera sichikhala ndi zotsatsa zokwanira kapena chilibe ulusi wofanana womwe umalimbikitsa kupindulitsa kwake (pamenepo udindo wovomerezeka). Osachepera, ndikutsatsa kumeneku pa intaneti (komwe gvSIG ilibe), nditatha mphindi zochepa kutsitsa nditha kuwona zambiri zomwe zimalandira mu Grass extensions, JGrass, SEXTANTE, Horton Machine ndi Axios m'ma hydrological ntchito, ma 3D mafoni, kugwirizana GPS, raser ndi vector.

kuipa

Dig ndi zinthu zochititsa chidwi, monga qGIS yothandizidwa ndi JGrass, koma monga yankho la GIS sizitsulo zabwino zotseguka, ponena za ntchito zomangamanga zogwirira ntchito, qgis (ndi zowonjezera zomwe zimabweretsa) ndi gvSIG (popanda zowonjezera). Ngakhale ili yokhwima, ndipo ili ndi zomwe wogwiritsa ntchito wamba angafune, kuthekera kwake ndi kogwiritsa ntchito luso la Java; cholinga chanu Internet GIS Ndizomveka kugwirizanitsa deta ndi kufufuza zosintha koma poti kusindikiza kulibe pang'ono kupereka (Geoserver amachita). 

Werengani zochepa zojambula za CAD / GIS, sanakwanitse kulumikiza dera lanu kuti gvSIG, ndipo, mwa ichi, kufunikira kwa ogwiritsa ntchito ndi mgwirizano wamakono ndi galimoto yofunikira yofulumizitsa chitukuko, mbali imeneyo sizikuwoneka kukhala akulimbikitsidwa ndi gvSIG (inde pamlingo wa Canada, koma osati padziko lonse).

Choonadi cha zopangira ziwembu Zimakupangitsani kutaya mfundo zingapo, monga ogwiritsira ntchito ambiri amalephera kulamulira pachiyambi (pakuyendetsa polojekiti, makanema ndi malingaliro).  Pezani mfundo izi kwa kuphweka Izo ndi kamodzi mode anu ntchito amadziwika, ngakhale nzeru za Java scalability ndi kusamalira bwino kuti yophunzitsa achidule kwambiri (zomwe n'zomveka) sizimawoneka (zinangokhalako ufulu wawo) ndi mtengo Khirisimasi zomwe zimapachika mafano ambiri kuti tsiku limodzi timatayika, kapena mgwirizano, kapena chiyero.

Osadziwika bwino kwambiri ndizovuta kwambiri (zomwe zimachitika kwa ena ambiri), kukhala yankho la gulu losankhidwa sizitsimikizidwe kwa nthawi yaitali, osati muzofunsira gwero lotseguka; Chifukwa chake, pang'ono dongosolo zochitika ndi zolemba, ngakhale njira yake yopangira zisankho zatsopano ndiyabwino. Kwa tawuni, Dig ikhoza kukhala yankho logwira ntchito, koma kupeza chithandizo ndi maphunziro atha kukhala vuto zovuta (kutali British Columbia); izo zikuwoneka zopindulitsa kwambiri kwa ntchito zomwe zidzakhudza munthu aliyense komanso kuti ali ndi bajeti yochirikiza (mwachitsanzo, chilengedwe, chiopsezo). 

Kuwonjezera pa ntchito ya mbatata ya ku Peru ndi zomwe Axios akusimba, sanamvepo pang'ono za Dig m'madera a ku Spain; kupitirizabe njira zothetsera vutoli pamtundu wa dziko kumadalira kugwiritsa ntchito ndondomeko za kusamukira ku pulogalamu yaulere, nkhani yopepuka ku Latin America.

Chosavuta kwambiri chimene ndikuwona Dig ndi kukhalitsa kwa nthawi yaitali, kukhala chinthu chothandizidwa ndi kampani yapadera kumapangitsa kukayikira mafunso monga:

• Nanga bwanji ngati Zotsutsa Kafukufuku akunena tsiku lina kuti phindu la kupitiriza chithandizo ndi chitukuko sizingatheke, ndani angachite?
• Kodi anthu ammudzi angalimbikitse kukula kwapadziko lonse, ngati kuli kofunika kwambiri?
• Kodi palibe mapulojekiti ena a Java / Eclipse omwe amachita zomwezo, zomwe ziri Chotsani Chotsegula, zomwe zikuwoneka kuti zikuphatikizapo khama?
• Zikuwoneka kuti zipangizo zaulere ndi njira za makampani zomwe potsiriza zimachoka ndikugwira chithandizo?

Ndithudi nthawi Open Zili ndi mayankho omveka bwino pazomwe zili pamwambazi, koma ndizofunika kuganizira zokhudzana ndi chitukuko, zomwe zimakhala zovuta pazinthu zopanda ntchito, chifukwa ngati tisiyanitsa njira zamakono ndi zamakono zomwe zikuwoneka kuti zikugwira bwino ntchito, ndalama ndizokayikitsa m'kupita kwanthawi. Lero tikukhala munthawi yomwe mphepo yamkuntho ikugwa padziko lonse lapansi pachuma, a zapatazo pamsonkhano ungayambitse nkhondo yomwe imathera tsiku limodzi ndi zizindikiro zabwino, kugwa kwa msika wogulitsa pansi pa zomwe zikuvomerezeka chifukwa makampani aakulu achoka fuck pasanathe ola limodzi.

Zinthu izi, tipangitse ife kuganize kuti tisanakhale zambiri (ndipo inde izo ndi zochuluka) zothetsera zomwe zimapatsa munthu ufulu wathunthu, kufalikira kwa zoyesayesa ndi ndalama zili pachiwopsezo (chifukwa pamapeto pake zimafunikira). Ufulu ukhoza kukhala wochuluka kotero kuti tsiku lina ungagwiritsidwe ntchito kusiya ntchito chifukwa cha zisankho zopangidwa ndi ena omwe sanali oyambitsa lingaliro loyambirira. Pankhaniyi, zowonadi ambiri adalemba kale, koma tiyenera kupitiliza kuganizira za izi mosamala, kukumbukira kuti tsiku lina ndalama zidzayesedwa ndi zomwe zimakhudzidwa osati ndi geofumada.

Pomaliza

• Monga chitukuko: cholimba kwambiri ndi chothandiza, mapulani ena ayenera kutsanzira malingaliro ochokera pano.
• Monga yankho: liri ndi malire aakulu poyerekeza ndi ena a mlingo wake, (poyambirira)
• Monga polojekiti: amayenda pang'onopang'ono ndipo sakuwoneka kuti akufulumira.
• Pamene mukuyesera zowonjezera, tikhoza kukupatsani mfundo zomwe mumaziwonjezera pambuyo poyang'ana.