Quantum GIS, kuororwa

Kana shamwari dze gvSIG vanochengeta chivimbiso chavo, Muvhuro unotevera Chikunguru 27 tichava neshanduro 1.9 yakagadzikana. Parizvino kuyedzwa kwave kukuru, zvinoenderana nevhoriyamu inoonekwa mu distribution list. Kunyange Muvhuro uchisvika, apo pandinotarisira kuva nekugutsikana kwekukorokotedza izwi kutevedzera, nekushaya kwekutadza kurara uko vanogadzira vanofanira kutakura, ngatitarisei iyo Quantum GIS seizvi kubva pakuona kweshiri.

QGIS yakagadzirwa muC ++ ichishandisa Qt toolkit, inomhanya paWindows, Mac neLinux. Iyo purojekiti yakamuka muna Chivabvu 2002, iine rutsigiro rwemitauro makumi maviri nematanhatu uye rezinesi rayo ndiGPL.

Tichaedza shanduro ye1.02 iyo mavoti akandisiya ndakagutsikana chaizvo kuti ndiri shandiswa yekushandisa, iwe unogona kuitora kubva pano uye ichi ndicho peji yepamusoro yeQgis.

Kuonekwa kweGIS Kuonekwa

Iyo iconography uye dhizaini dhizaini ndiyo inogona kudzikunurwa, haina kukanganisa kushandiswa, asi inokanganisa kuravira kwekambani (inotengesa) kana uchiipa. Chitarisiko icho akambozvidzwa yeGvSIG, nokuti pane imwe nguva kuonekwa kwayo nekusiyana kwezvisikwa zvakaita kuti maneja andiudze "inoratidzika sepurogiramu yekare, mamwe mafananidzo anoita seakagadzirwa ne 8 bitmap pepurasitiki".

Asi mune izvi kukunda, QGIS inofamba zvakanaka kwazvo, kunyange nechokuita nyore iwe unogona kusarudza pakati pezvinyorwa zve 3 zvakasiyana-siyana zvemifananidzo yakajeka zvakanaka zvakagadziriswa, nekungopfuura kudarika nemusoro nehurukuro inoratidza kuti ingano yacho yaizotarisa sei.

Quantum GIS inonakidza zvinhu

QGIS inoda Grass kune akawanda mashandiro ayo chishandiso chakanyatsosimbisa, chakanakira kusadzokorora kuedza. Kana uchitanga QGIS uye usingaiwane yakaiswa, inomutsa yambiro; mune ino kesi ndiri kuita wongororo ndisina kusanganisira Grass. Pandakanga ndichida kurodha dhata reGrass, nekuti rakanga risina kuiswa, iro application rakavharwa, saka handikurudzire kurishandisa pasina kuisa zvese zvishandiso.

Shortcuts, Iyo yakanaka nhamba yemirairo ine tsamba yakapihwa, zvekuti iro basa rinogona kutakurwa nekungodzvanya tsamba iyi. Izvi zvinonyanya kushanda, ndinorangarira kuti muAutoCAD yaive imwe yeakanakisa madhiri apo anenge mirairo yese yaiitwa kuburikidza nekhibhodi.

Kuongorororwa, pane repaneru kuruboshwe pane mepu inoratidza nzvimbo yekuendesa, iine kuwiriranisa mumatunhu maviri. Inonyanya kubatsira, unogona kusarudza zvidimbu zvaunoda kuona mukutarisa, uye zvinogona kudonhedzwa sehwindo rinotenderera pahukuru hwakasiyana.

Rutivi rwepadivi, rakakura chete, unogona kudhonza mapulagi semavara kumberi, anogona kuitwa kuyangarara, uye nekabhatani bhatani rekurudyi kana kumisa. Zvakare manejimendi manejimendi akareruka kudhonza kwete chete kuruboshwe kuruboshwe asiwo mune rezasi.

The bottom panel, kana uchiratidza tafura yehunhu, inoratidzika munzvimbo, asi inogona zvakare kunge ichiyangarara. Inoshanda kwazvo, iine sarudzo dzekuswededza kumitsara yakasarudzwa uye chinja hupamhi hwemakoramu nekukweva kuri nyore kwembeva. Zvakare mune yepazasi furemu ine yekutsvaga uye yekusarudza mashandiro, akafanana neayo Manifold GIS anayo, kunze kweiyo yakapusa mamiriro bar.

Paumbwe ichi inowanikwa zvakagadzirwa zvinoita zvakawanda kushandisika, chii iframe ndiyo yakanakisisa, ini Microstation anoyeuchidza, sezvakaitwa, hwindo hunhu angadzorwa muAtlantic pasina kukanganisa dzimwe kushandiswa.

Data analysisAne zvinokosha geoprocessing uye kutsvakurudza kuti munhu kungada, pakutanga kuaona pane zvimwe zvikuru zvinhu vanosarudza kuona pane imwe nguva, sezvo fTools plugins zvinosanganisira Nzvimbo Modelling, hydrological uye nevamwe.

Zvimwe PluginsKunge chero gpl yekushandisa, kuwana kwayo kuri mumapulagi ayo enharaunda ari kugadzira zvishoma nezvishoma (kunyangwe paine mukana wekusave muJava), nekutadza inounza mabhesiki uye anoita kunge mashoma asi haasi akareruka sezvavanoratidzika: anogona kutakurwa Matanda eWFS, kutumira kunze kuMapServer, kutora kurongeka, kuwedzera zvinobatsira pakuona senge kuchamhembe, zviyero uye copyright, chinyorwa chakatemwa nemakomichi, ine dxf kune shp inoshandura, plugin kune georeference mifananidzo, gps koni, python koni, kurongedza mesh , nezvimwe. Asi chinhu chakanakisa isarudzo yekuisa maGrass plugins ayo ari ega musoro wenyaya. Zvakafanana nezvinoitika ne gvSIG uye Sextante kunyangwe kukura kweGrass kunoremekedzwa, chimwe chezvishandiso zvekare zveGIS.

Sezvineiwo OGR convert izvo zvinogona exchange akaturikidzana pakati zvakasiyana zvinogona, akadai SHP, DGN, GPX, GML, csv, kml, MapInfo uye BD nzvimbo Via ODBC, MySQL, PostgreSQL nevamwewo.

Pamusoro pezvakanakisisa: dxf kusvika shp uye kml kune dxf, asi asi kwete yakagadzirwa nemamwe mapurogiramu ekubhadhara.

Basic FunctionsKunge mamwe maturusi, unogona kugadzira mabhukumaki enzvimbo, mapoka ezvikamu, zvidimbu zvine hushoma uye hukuru hwekudzora zoom, kureruka kwekuwedzera marongero ehurongwa uye fungidziro kana paine shp akaturikidzana, kana vaine prj, Qgis anonunura ruzivo urwu. Maitiro mazhinji anosanganisira yekufambira mberi bhaa, iyo yatinofunga yakanaka kwazvo.

Zvinonakidza kwazvo kuti hunhu hwezvinhu hwakagadziridzwa sei, nekuti mune iro rimwe pani pane matai ezvakajairika zvivakwa, chiratidzo, metadata, zvinyorwa, zviito uye zvetabular hunhu; zvese zvinogona kuchengetwa se .qml maitiro uye kutakurwa kuisa kune mamwe matara. Zvakare tafura iyi iri kuyangarara uye upamhi uye kukwirira kwayo kunogona kugadziridzwa kuravira. Kunyangwe iyi pani uye nevamwe vanogona kuvhurwa seyakasiyana application.

Inodawo kutarisa kune zvinhu zvinoratidzika sezviri nyore asi zvinoshandiswa zvakanyanya, zvakadai sokuyera kwemafambiro anoramba achienderera mberi, ayo anowanikwa mune rimwe boka remajeri, iro rinosanganisira kureba kwechikamu chimwe nechimwe.

Tsvaga uye gadzirisa dheta

Unogona kurodha vector data shp, gml, Mapinfo uye ddf, kunyangwe dhata kubva kune mamwe mafomati inogona kushandurwa kuburikidza neye OGR inoshandura. Kuwedzera vector materu kuburikidza neWFS uye PostGIS. Rinonunurika, rinokutendera kuti utaure hunhu hwekodhi kana uchinge uchinge uchinge uchinge waita.

Kana iri yezvikwata zvemajeri, inotsigira nhamo yakaipa, kunze kweWMS. Kuwedzerwa kunosanganisira kuverenga OGC WFS, WCS, CAT, SFS, uye GML mitemo.

Kuti vagadzire matsva vector mavari anogona kuitwa kuburikidza neOGR mafomu mafaira kana Grass. Iwo mapurojekiti anochengetwa seXML nekuwedzera kwe qgs, uko gvSIG -style layering inochengetwa.

Nezve kugadzirisa data, maratidziro akadai seanoratidzira system, zvikamu, kudhindwa kwedesimali, inogonesa kuronga kwepamusoro, mvumo kana kukamurwa kwemapoligoni akapindirana munzvimbo imwechete uye mamiriro ezvinhu (mhando uye) zvakachengetwa muzvivakwa zveprojekti. kushivirira) kune yega yega rukoko inowanikwa muprojekti. Iyo yekupedzisira inonakidza, kunyangwe ini ndakaodzwa mwoyo kuti inongova nechikamu uye vertex sarudzo. Ndinoomerera, Grass inofanirwa kuve chikonzero cheizvi.

Ndakaedza kuchinja unheyo, kuisa vertex, asi ndakaiona ichinonoka, zvimwe kunze kwezvaidiwa kuenda kuwedzera sarudzo yekunyora (Ndine urombo pamusana pandinenge ndava kushungurudza, ndiyo nguva yokutanga ini ndichitamba ichi chido). Ndichazviona mushure mekunge ndaregedza maturusi ekugadzirisa Grass. Kana zvinoita kunge paine track kana akati wandei ari kugadzirisa dura panguva imwe chete, chero anochengetedza ekutanga kuhwina. ugh!

Data yakabuda

Nekukurumidza kuburitsa zvinangwa, pane sarudzo yekuchengetedza maonero sechifananidzo, uye plugin yekukurumidza kudhinda, asi kusiyana negvSIG, haina ArcView-dhizaini dhizaini dhizaini; asi munyori wekudhinda uyo anoita kunge akatorwa kubva mubvudzi, kunyange hazvo achibvumidza kurodha dataframes, zvinyorwa, mabhokisi uye zviratidzo, uye nziyo dzinoverengeka dzinogona kugadzirirwa chirongwa, ini handina kuwana maitiro ekuvachengeta sematemplate; bhuku racho rinoti zvinogoneka. Ini ndinofungidzira kune zvirinani zvinhu muGrass plugins nekuda kwezvinangwa izvi.

Quantum gis vs ArcGIS

Zvechokwadi tichaita, mushure memusi wekupedzisira.