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Importing_Google_Earth_Data_into_a_GIS.ppt
- 1. Importing Google Importing Google EarthData into a GIS Earth Data into a GIS Jason Parent Jason Parent jason.parent@uconn.edu jason.parent@uconn.edu Center for Land use Education and Research
- 2. 2 Google Earth Google Earth ►Providesfree access to a rich resource of Provides free access to a rich resource of satellite imagery and geographic data satellite imagery and geographic data ►Excellent for visualization Excellent for visualization ►On-screen digitizing capabilities allow On-screen digitizing capabilities allow mapping of features mapping of features Features can be saved as kml files Features can be saved as kml files kml files cannot be directly loaded into a GIS kml files cannot be directly loaded into a GIS
- 3. 3 The “Convert KMLto SHP” tool The “Convert KML to SHP” tool ►Converts kml features to shapefile features Converts kml features to shapefile features Names and descriptions of kml features are Names and descriptions of kml features are retained in the shapefile retained in the shapefile ►Easy to use - run as a tool in ArcToolbox Easy to use - run as a tool in ArcToolbox ►Runs on ArcView 9.2 – no extensions Runs on ArcView 9.2 – no extensions required. required. ►Works with kml files created by Google 4.2 Works with kml files created by Google 4.2 May not work with older versions May not work with older versions
- 4. 4 Creating features inGoogle Creating features in Google Earth Earth ►Create a folder to contain the features Create a folder to contain the features Right-click Enter single line description
- 5. 5 Creating features inGoogle Creating features in Google Earth Earth ►Create feature in the appropriate folder Create feature in the appropriate folder Select folder point polygon line name description
- 6. 6 Saving features toa KML file Saving features to a KML file ► Save the entire folder as a Save the entire folder as a kml file kml file (do not save (do not save as a kmz file) as a kmz file) ► Folder can contain more than one feature type. Folder can contain more than one feature type. Right-click
- 7. 7 Running the “ConvertKML to SHP” tool Running the “Convert KML to SHP” tool ►Add toolbox to ArcToolbox Add toolbox to ArcToolbox Input kml file Feature type Output shapefile
- 8. 8 Google Polygons toShapefile Google Polygons to Shapefile Shapefile is not projected
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- 10. 10 Using Google EarthImagery in a Using Google Earth Imagery in a GIS GIS ►Google Earth imagery cannot be Google Earth imagery cannot be downloaded. downloaded. ►Screen captures can be georeferenced Screen captures can be georeferenced and used in a GIS. and used in a GIS. ►Reference points are needed to geo- Reference points are needed to geo- reference a screen capture. reference a screen capture. ►Features digitized in Google Earth can be Features digitized in Google Earth can be used as references. used as references.
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- 12. 12 Saving the Georeferenced Savingthe Georeferenced Image Image
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- 14. 14 Downloads Downloads ►The “Convert KMLto SHP” tool, as well as The “Convert KML to SHP” tool, as well as other geospatial tools, can be other geospatial tools, can be downloaded through the Center for Land downloaded through the Center for Land use Education and Research (CLEAR) use Education and Research (CLEAR) website: website: ► http://www.clear.uconn.edu/tools/geospatial/K http://www.clear.uconn.edu/tools/geospatial/K ML_to_SHP_ArcGIS.zip ML_to_SHP_ArcGIS.zip
- 15. Importing Google Importing Google EarthData into a GIS Earth Data into a GIS Jason Parent Jason Parent jason.parent@uconn.edu jason.parent@uconn.edu Center for Land use Education and Research Questions?