Recently I had a need to generate a spider diagram for my map. Spider diagrams, also called desire lines for business scenarios, are a series of rays drawn from a central point to related points. The result shows you the actual area of influence for each central point.
Some good examples would be store locations and customers that visit them, library locations and patrons’ home locations, or in my case fire station locations and incidents they responded to. Continue reading
Last week Google announced that is has added support for Lyft and Gett to Google Maps for Android and iOS. Google Maps now displays ridesharing options from nine partners in over 60 countries:
The feature works in the same way as other transportation options in Google Maps. For example, Continue reading
Today America’s most populous state and third largest by geographic area is 166 years young. California became the 31st American state on September 9, 1850.
Some fun facts that you might not know about the Golden State:
And here are some things that were going on in the world in the year 1850.
If you happen to be in Sacramento today, you can join in the festivities at the State Capital from 11am to 1pm.
Very soon ESRI Press will be releasing the 8th edition of “Map Use: Reading, Analysis, Interpretation”. The e-book will be available September 19th and the print book on November 7th.
Map Use is a comprehensive, foundational textbook, providing students with the knowledge and skills to read and understand maps, and offers professional cartographers a thorough reference resource. Continue reading
The California Earthquake Clearinghouse was setup to provide a location after a damaging earthquake, real or virtual, for professionals who arrive in the affected area to become part of a larger, temporary organization (the Clearinghouse) to facilitate the gathering of information, maximize its availability, and better use the talents of those present.
The history of the Clearinghouse has its roots back in 1971 after the San Fernando earthquake. Continue reading
The California Water Atlas, published by the State of California, was a landmark atlas with the first comprehensive look at California’s extensive water system in a geographic context. The atlas itself measured about 18.5 x 16 inches and had hundreds of maps and infographics that told the story of California water in different ways.
The goal of the atlas was to “introduce Californians to the complex and compelling issues of water in the state, giving them the information they need to participate more actively in the decisions that governmental agencies make”. Continue reading
Some of the recorded Technical Sessions from the 2016 ESRI User Conference are now available to view on YouTube. Check them out here.
Many of you are probably familiar with DeLorme Atlas & Gazetteer maps. There was concern that the Swiss company Garmin that bought Delorme in February was going to discontinue the paper map books. However, they announced that the map books will continue to be “enhanced” and revised/updated and the company will make additional investments in “resources and cartography staff based in the Yarmouth facility.” Good news for those of you that use those maps! Click below to read the story.
On April 3rd, 1988, the Los Angeles Times Magazine published a 25 year look ahead to 2013. Though we did not end up with housekeeper robots, other things did become reality. Continue reading
We see this map every presidential election, and it needs an overhaul! Watch the video.
SoCalGIS.org 