Title: Searchable Coverage Checker Map
Last modified: August 2, 2022

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# Searchable Coverage Checker Map

 *  [marktrader](https://wordpress.org/support/users/marktrader/)
 * (@marktrader)
 * [4 years ago](https://wordpress.org/support/topic/searchable-coverage-checker-map/)
 * Hello everyone.
 * I’m looking to create a coverage checker for my services.
    I need someone to 
   enter their location and if that location falls within my coverage area, the 
   services are displayed.
 * Something like this -> _[ redundant link removed ]_
 * I’ve been doing some research but I’m not really sure where to start here. Any
   guidance or ideas on how to get this done would be greatly appreciated.
 * Thanks
    -  This topic was modified 4 years ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).
      Reason: Moved to Fixing WordPress, this is not an Developing with WordPress
      topic
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fsearchable-coverage-checker-map%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Moderator [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * (@bcworkz)
 * [4 years ago](https://wordpress.org/support/topic/searchable-coverage-checker-map/#post-15881692)
 * The right approach depends on how your coverage area is defined. Assuming it 
   is in the form of GIS polygons, the underlying data is a series of latitude/longitude
   coordinates. A user’s location can be queried from their mobile device. But to
   get a lat/long location based on address entry, you’ll want to make use of a 
   geocoding service. Google provides one, there are others.
 * There’s some algorithm to determine if a particular location lies within a polygon
   or not. I don’t know how it works though. A complex polygon that has “bays” and“
   peninsulas” can be particularly difficult to evaluate.
 * OTOH, determining the distance between any two geographic points is relatively
   simple, but it still involves at least spherical geometry. Spherical calculations
   are still an approximation, but generally close enough for practical use. For
   full accuracy, complex ellipsoidal geometry is called for.
 *  Thread Starter [marktrader](https://wordpress.org/support/users/marktrader/)
 * (@marktrader)
 * [4 years ago](https://wordpress.org/support/topic/searchable-coverage-checker-map/#post-15903415)
 * Hi [@bcworkz](https://wordpress.org/support/users/bcworkz/), thanks for that 
   quick response.
    Most of what you’ve said there is way above my current expertise,
   so I’m going to have to upskill myself a bit.
 * I’ve found a few tricks I can use to get the same general result using some plugins,
   but I’m still customizing it. I’ll update this post when I’ve made decent headway.
 * Thanks again for offering a starting point.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Searchable Coverage Checker Map’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [marktrader](https://wordpress.org/support/users/marktrader/)
 * Last activity: [4 years ago](https://wordpress.org/support/topic/searchable-coverage-checker-map/#post-15903415)
 * Status: not resolved

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