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‘Drawing Library’ Added to Google Maps API; New Geothermal Map of the United States

Earlier this week, Google Maps API got a great new feature dubbed Drawing Library, that provides a toolbox which enables users to draw circles, boxes, markers, lines, and shapes to highlight locations on the map, just like they would in any physical map, revealed Enoch Lau, Software Engineer, Google Maps API.

And to be even more like physical maps, users can use the tools to approximate drawing a coffee cup stain or a big crinkle.

“The tools can be used for collecting annotations from users, or for selecting regions to search or highlight. Applications can listen for events when overlays are added and respond accordingly, such as issuing the search query or saving the annotations to a database,” Lau said.

“Shapes on a map, including shapes users have just drawn using drawing tools, can also be made editable so that users can modify or correct them. For example, the user could change the bounds for a geospatial query with the drag of a mouse. The Polyline, Polygon, Circle, and Rectangle classes have a new editable property, which toggles the visibility of control points on these shapes,” Lau explaned.

For more information on using the drawing library and editable shapes, refer to the Maps API documentation.

A Google.org study to update the Geothermal Map of North America, conducted by SMU Geothermal Laboratory, led by Principal Investigator Dr. David Blackwell, incorporated tens of thousands of new thermal data points to create the most data rich perspective on US geothermal resources to date.

“The study estimates that Technical Potential for the continental US exceeds 2,980,295 megawatts using Enhanced Geothermal Systems (EGS) and other advanced geothermal technologies such as Low Temperature Hydrothermal,” revealed Parag Chokshi, Clean Energy Team, Google.org.

“The SMU team has been developing entirely new pictures of the earth’s geothermal resources. They started by aggregating thousands of new Bottom Hole Temperature (BHT) readings from oil, gas, and water wells in previously under-sampled regions of the U.S. For example, The 2004 Geothermal Map of North America used only 5 heat flow points informing geothermal estimates for West Virginia, compared to the additional 1,455 BHT points in the updated version. In addition, the team has improved estimates of heat flow through the earth’s crust with better regional lithologic data,” Chokshi added.

The full results can be seen in the updated Google Earth layer on U.S. Geothermal Resources and in SMU’s paper to be presented at the Geothermal Resources Council Annual Meeting.

New Geothermal Map of the United States

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