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ESRM 250/CFR 520 Autumn 2009 Phil Hurvitz

Exporting GIS Data. ESRM 250/CFR 520 Autumn 2009 Phil Hurvitz. Overview. Why export? Converting vector datasets to shapefiles/ geodatabase feature classes Converting image data sets to grids Exporting grid datasets to generic raster format

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ESRM 250/CFR 520 Autumn 2009 Phil Hurvitz

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  1. Exporting GIS Data ESRM 250/CFR 520 Autumn 2009 Phil Hurvitz 1 of 21

  2. Overview • Why export? • Converting vector datasets to shapefiles/geodatabase feature classes • Converting image data sets to grids • Exporting grid datasets to generic raster format • Exporting vector datasets to ArcInfo generate format • Exporting tables • "Exporting" views and layouts • Exporting 3D scenes as VRML • Exporting to KML 2 of 21

  3. Why export? • Sharing data with others • ArcGIS users • Users of other software • Integration with desktop publishing applications • Export-and-archive 3 of 21

  4. Converting vector datasets to shapefiles/gdb feature classes • Any supported vector data source can be converted to shapefile or geodatabase feature class • Polymorphic data sources need to be converted to several output data sets • one CAD file can contain multiple layers • one ArcInfo coverage can contain multiple layers • Shapefiles can be moved, copied, or archived easily & safely even with OS (better with ArcCatalog • Feature subsets can be created 4 of 21

  5. Converting image datasets to grids • Generic image formats are frequently used as interchange files • Supported image formats can be converted to grids • Grids obtain cell values from image pixel values • Multi-band images can be converted to a series of grids • Possible to use raster analysis on image data 5 of 21

  6. Exporting grid datasets to generic raster format • Grids are proprietary ESRI file format • Possible to export to “generic” raster format • Generic formats can be imported by other GIS or image analysis applications • ASCII generic raster format • Single file containing both header lines & data • Binary generic raster format • 2 files created: header ASCII file, binary raster data file 6 of 21

  7. Exporting vector datasets to ArcInfo generate format • Coverage, shapefile, CAD data are frequently unreadable by other software • Possible to export to software-independent ASCII coordinate format • ArcInfo Generate format • Simple structure • Easily readable by other software • May need accompanying tables exported to dBase or ASCII 7 of 21

  8. Exporting vector datasets to ArcInfo generate format: Points • Simple spatial format for representing points • Requires a link file to convert attribute tables • IDs can be used to link between points and attribute tables 8 of 21

  9. Exporting vector datasets to ArcInfo generate format: Lines • Simple spatial format for representing lines • Requires a link file to convert attribute tables • IDs can be used to link between line segments and attribute tables 9 of 21

  10. Exporting vector datasets to ArcInfo generate format: Polygons • Simple spatial format for representing polygons • Requires a link file for attribute tables • IDs can be used to link between polygons and attribute tables 10 of 21

  11. Exporting tables • Tables can be exported to “generic” formats • dBase • ASCII tab-delimited • INFO • Table subsets can be exported • Only selected records are exported • Formats readable by other applications • Use in spreadsheet or statistics software 11 of 21

  12. Exporting tables 12 of 21

  13. Exporting tables • Exported tables can be opened in other applications 13 of 21

  14. "Exporting" views and layouts • View and layout contents can be output to generic graphics formats • Enhanced Windows Metafile • Encapsulated PostScript - New • Adobe Illustrator • PDF • SVG (scalable vector graphic) • BMP, JPEG, PNG, GIF, TIFF • Graphics can be imported to other applications 14 of 21

  15. menu choice while data view or layout is active specify file type,output location & name "Exporting" views and layouts 15 of 21

  16. "Exporting" views and layouts • Import image files to desktop publishing applications 16 of 21

  17. Exporting 3D scenes as VRML • 3D scenes can be exported to software-independent VRML files • Virtual Reality Markup Language • ASCII format • Multiple files • Distribute via the Network • Viewable with standard browser plug-ins • Let others view 3D scenes without specialized software • Caution: files can become very large 17 of 21

  18. Exporting 3D scenes as VRML • VRML can be loaded into free viewer 3D scene in ArcScene web browser plug-in 18 of 21

  19. Exporting to KML • Keyhole markup language (from Google) • Viewable in GoogleMaps, GoogleEarth single layer to KML multiple layers to KML 19 of 21

  20. Exporting to KML 20 of 21

  21. Exporting to KML • KMZ (“Z” = compressed) files can be displayed in GoogleEarth 21 of 21

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