Esrm 250 cfr 520 autumn 2009 phil hurvitz
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ESRM 250/CFR 520 Autumn 2009 Phil Hurvitz PowerPoint PPT Presentation


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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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Esrm 250 cfr 520 autumn 2009 phil hurvitz

Exporting GIS Data

ESRM 250/CFR 520

Autumn 2009

Phil Hurvitz

1 of 21


Overview

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

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Why export

Why export?

  • Sharing data with others

    • ArcGIS users

    • Users of other software

  • Integration with desktop publishing applications

  • Export-and-archive

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Converting vector datasets to shapefiles gdb feature classes

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


    Converting image datasets to grids

    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


    Exporting grid datasets to generic raster format

    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


    Exporting vector datasets to arcinfo generate format

    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


    Exporting vector datasets to arcinfo generate format points

    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


    Exporting vector datasets to arcinfo generate format lines

    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


    Exporting vector datasets to arcinfo generate format polygons

    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


    Exporting tables

    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


    Exporting tables1

    Exporting tables

    12 of 21


    Exporting tables2

    Exporting tables

    • Exported tables can be opened in other applications

    13 of 21


    Exporting views and layouts

    "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


    Exporting views and layouts1

    menu choice while data view or layout is active

    specify file type,output location & name

    "Exporting" views and layouts

    15 of 21


    Exporting views and layouts2

    "Exporting" views and layouts

    • Import image files to desktop publishing applications

    16 of 21


    Exporting 3d scenes as vrml

    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


    Exporting 3d scenes as vrml1

    Exporting 3D scenes as VRML

    • VRML can be loaded into free viewer

    3D scene in ArcScene

    web browser

    plug-in

    18 of 21


    Exporting to kml

    Exporting to KML

    • Keyhole markup language (from Google)

    • Viewable in GoogleMaps, GoogleEarth

    single layer to KML

    multiple layers to KML

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    Exporting to kml1

    Exporting to KML

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    Exporting to kml2

    Exporting to KML

    • KMZ (“Z” = compressed) files can be displayed in GoogleEarth

    21 of 21


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