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Įvadas į GIS - Geografines informacines sistemas PETTER PILESJÖ ir ULRIK MÅRTENSSON
Kas yra GIS? GEOGRAFINĖS INFORMACINĖS SISTEMOS
KAS YRA GEOGRAFINIAI DUOMENYS
GEOGRAFINIAI DUOMENYSYRA: GEOMETRINIAI DUOMENYS(ŽEMĖLAPIO DUOMENYS) GEOMETRINIAI DUOMENYS = OBJEKTAISU TAM TIKRA ERDVINE STRUKTŪRA. TOPOGRAFIJA AUGMENIJA PASTATAI
KELIAI, NEKILNOJAMASIS TURTASIRMIŠKAI JŲ PADĖTIS ŽINOMA – x, y (z) PLOKŠTUMINĖS KOORDINATĖSAR GEODEZINĖ PLATUMA IR ILGUMA
GIS GEOGRAFINIAI DUOMENYS GALI BŪTI IŠREIKŠTI TRIMIS GEOMETRINIŲ OBJEKTŲ TIPAIS: TAŠKINIAI OBJEKTAI (PVZ.: GRĘŽINIAI, GEODEZINIAI PUNKTAI, ŠULINIAIIR PAN.) LINIJOS: KELIAI, VANDENS KANALAI, RIBOS POLIGONAI (PLOTAI): ŽEMĖNAUDOS, EŽERAI, NEKILNOJAMASIS TURTAS
GEOMETRINIAI DUOMENYS GALI BŪTI PANAUDOTI ŽEMĖLAPIAMS RENGTI KAS YRAŽEMĖLAPIS?
ŽEMĖLAPIS YRA REALAUS PASAULIO 2D MODELIS
PASTATAI KELIAI ŽEMĖS DANGA DIRVOŽEMIS ORO TARŠA HIDROLOGIJA IR T.T.
GEOGRAFINIAI DUOMENYS TAIPS PAT YRA DUOMENYS, KURIE APRAŠO GEOMETRINIUS OBJEKTUS, PVZ.: KELIO GREIČIO RIBA NEKILNOJAMOJO TURTO SAVININKAS MIŠKO AMŽIUS NAMO DYDIS TOKIE DUOMENYS YRA VADINAMI: ATRIBUTINIAI DUOMENYS
- JUNGTIS GEOMETRINIAMS DUOMENIMS (ŽEMĖLAPIAMS) SUJUNGTI SU JŲ ATRIBUTINIAIS DUOMENIMIS (PVZ., LENTELĖMIS) REIKALINGOS JUNGTYS.
ŽEMĖLAPIS LENTELĖ SAVININKAS VERTĖ PETTER GUNNAR LISBETH JOHAN EIMIS 100 110 205   17   96 JUNGTYS REIKALINGOS GEOMETRINIAI DUOMENYS ATRIBUTINIAI DUOMENYS
ŽEMĖLAPIS LENTELĖ ID NUMERIS VERTĖ SAVININKAS 760 111   3  16 PETTER GUNNAR LISBETH JOHAN EIMIS 100 110 205   17   96 JUNGTIS = ID NUMERIS ID NUMERIS GEOMETRINIAI DUOMENYS ATRIBUTINIAI DUOMENYS
PAIEŠKA/PATEIKIMAS (VIZUALIZACIJA) KAS ŠIO SKLYPO SAVININKAS? KURIS SKLYPAS PRIKLAUSO PETERIUI?
GEOGRAFINĖ ANALIZĖ SUDARO GALIMYBES SUŽINOTI APIE: KURIO NORS OBJEKTO DYDĮ KUR KAS NORS YRA ERDVINIUS SKIRSTINIUS SĄVEIKAS/RYŠIUS TARP SKIRTINGŲ REIŠKINIŲ ERDVĖJE IR LAIKE IR T.T.
ATMINKITE! ŠIUKŠLĖS Į – ŠIUKŠLĖS IŠ
PLAČIAU APIE GIS IR MOKYMOSI GALIMYBES GALIMA SURASTI INTERNETEWWW.E-GIS.ORG.

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