City of San Mateo Google Earth integration with OGC compliant data

City of San Mateo Google Earth integration with OGC compliant data

Challenge

The City of San Mateo uses a suite of GIS applications for staff to access geospatial data. The City wanted to provide more intuitive access to its GIS data and make it accessible to the public. Google Earth offered a simple and easy to use interface that is quickly understood by all users. However, the back end GIS was not able to deliver geospatial data directly to Google Earth. The City asked Farallon Geographics to integrate the two systems for real-time visualization.

Solution

The City uses Intergraph’s GeoMedia family of GIS applications with a Microsoft SQL Server relational database back-end. Farallon developed a suite of web services to dynamically publish the City’s most current GIS data and high-resolution aerial photography to Google Earth. Using Microsoft’s .NET technology and GIS interoperability specifications developed by the Open Geospatial Consortium (OGC), Farallon developed web services that stream GIS data in KML format directly to Google Earth.

Farallon’s approach allows City staff and residents to easily visualize the most current GIS data using Google Earth while GIS professionals may simultaneously access the same data for more sophisticated analyses via the OGC services. Each type of user can view and manipulate the data in the way that is most meaningful and useful to them individually.

Farallon’s web services allows City staff to use the functionality of its enterprise GIS such as high-resolution images and parcel information. In the future, the City would like to add Google Earth layers for bike routes, parks and other community information.

Screenshots & Videos

Traditional GeoMedia GIS display using City high resolution imagery with parcel overlays

Traditional GeoMedia GIS display using City high resolution imagery with parcel overlays

Google Earth view of the same location

Google Earth view of the same location

Using .Net and OGC standards, Google Earth user can view selected City of San Mateo GIS data such as high quality aerial imagery and point/linear/polygonal features such as parcel maps - all in real-time.

Using .Net and OGC standards, Google Earth user can view selected City of San Mateo GIS data such as high quality aerial imagery and point/linear/polygonal features such as parcel maps – all in real-time.