Esrm 250 cfr 520 autumn 2009 phil hurvitz
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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

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 Polygons

    • 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 Polygons

    12 of 21


    Exporting tables2
    Exporting tables Polygons

    • Exported tables can be opened in other applications

    13 of 21


    Exporting views and layouts
    "Exporting" views and layouts Polygons

    • 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 Polygons

    specify file type,output location & name

    "Exporting" views and layouts

    15 of 21


    Exporting views and layouts2
    "Exporting" views and layouts Polygons

    • Import image files to desktop publishing applications

    16 of 21


    Exporting 3d scenes as vrml
    Exporting 3D scenes as VRML Polygons

    • 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 Polygons

    • VRML can be loaded into free viewer

    3D scene in ArcScene

    web browser

    plug-in

    18 of 21


    Exporting to kml
    Exporting to KML Polygons

    • Keyhole markup language (from Google)

    • Viewable in GoogleMaps, GoogleEarth

    single layer to KML

    multiple layers to KML

    19 of 21


    Exporting to kml1
    Exporting to KML Polygons

    20 of 21


    Exporting to kml2
    Exporting to KML Polygons

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

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