1 incorporating a google maps instance into your website
Download
1 / 7

1 - PowerPoint PPT Presentation


  • 194 Views
  • Updated On :

1 – Incorporating a Google Maps instance into your website. Sign up for a API key http://code.google.com/apis/maps/signup.html Good for one web directory Cut and paste the example snippet into a new HTML document Example: http://www.fsl.orst.edu/sdmg/googlemaps/index.html.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about '1 ' - Sharon_Dale


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
1 incorporating a google maps instance into your website l.jpg
1 – Incorporating a Google Maps instance into your website

  • Sign up for a API key

    • http://code.google.com/apis/maps/signup.html

    • Good for one web directory

  • Cut and paste the example snippet into a new HTML document

    • Example: http://www.fsl.orst.edu/sdmg/googlemaps/index.html


1 incorporating a google maps instance into your website cont l.jpg
1 – Incorporating a Google Maps instance into your website (cont.)

  • Read the API documentation and customize

    • Resizing the map

    • Adding controls

    • Adding random points

  • Documentation intro:

    • http://code.google.com/apis/maps/documentation/introduction.html

  • Examples:

    • http://code.google.com/apis/maps/documentation/examples/


2 converting your imagery into tiles that can be used by ge and gm using gdal2tiles l.jpg
2 – Converting your imagery into tiles that can be used by GE and GM (using GDAL2Tiles)

  • gdal2tiles is a Python script written primarily by Klokan Petr Přidal as a Google Summer of Code (SoC) project

  • Incorporated as a sample script with the GDAL-OGR distribution

  • Program tiles an image into many pyramid layers and creates the Keyhole Markup Language (KML) to navigate seamlessly between layers

  • For more info:

    • http://wiki.osgeo.org/wiki/GDAL2Tiles_SoC_2007


2 converting your imagery into tiles that can be used by ge and gm using gdal2tiles cont l.jpg
2 – Converting your imagery into tiles that can be used by GE and GM (using GDAL2Tiles) (cont.)

  • Convert your imagery into an RGB image

    • This can be accomplished with GDAL tools like gdal_translate (format changing, clipping), gdal_warp (projection) and pct2rgb.py (palette-to-RGB)

  • Run gdal2tiles.py with –forcekml flag, e.g:

    • gdal2tiles.py –forcekml temp3.tif

  • Output is a hierarchical directory structure with clipped (128x128) images

  • Can be viewed in either Google Earth or Google Maps


3 creating plot footprint kml from coordinate files l.jpg
3 – Creating ‘plot footprint’ KML from coordinate files

  • We needed a system of ‘plot screening’ – deciding which plots to use when modeling with GNN

  • We have screened in ArcMap with the 2005 NAIP, but context was sometimes hard to determine.

  • Because Google Earth has Oregon 2005 NAIP, we could screen in here as well

  • Needed to convert plot locations to KML


3 creating plot footprint kml from coordinate files6 l.jpg
3 – Creating ‘plot footprint’ KML from coordinate files

  • KML reference:

    • http://code.google.com/apis/kml/

  • Quick start guide:

    • http://code.google.com/apis/kml/documentation/kml_tut.html

  • Stack:

    • Python, GDAL-OGR, Genshi (*ML Processing Toolkit)


3 creating plot footprint kml from coordinate files7 l.jpg
3 – Creating ‘plot footprint’ KML from coordinate files

  • Workflow:

    • Create points, subplots, pixel ‘footprints’ in native coordinate system

    • Project all coordinates from native system to WGS84 using OGR

    • In conjunction with a KML template, generate the KML for all plots using Genshi


ad