How to Get Valid Coordinates from Apple Maps Using MKPolyline Object скачать в хорошем качестве

How to Get Valid Coordinates from Apple Maps Using MKPolyline Object

Discover how to extract valid coordinates from `MKPolyline` objects in Apple Maps with our detailed guide. Learn the proper conversion method and avoid invalid point issues! --- This video is based on the question https://stackoverflow.com/q/70890455/ asked by the user 'Parv Bhasker' ( https://stackoverflow.com/u/4955401/ ) and on the answer https://stackoverflow.com/a/70904372/ provided by the user 'TonyMkenu' ( https://stackoverflow.com/u/1702413/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to get valid coodinates from Apple map using MKpolyline object Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Introduction Are you developing an iOS application that utilizes Apple Maps and need to extract valid geographic coordinates from a MKPolyline object? You're not alone. Many developers encounter the challenge of obtaining useful coordinate data when trying to leverage Apple Maps for navigation or mapping applications. In this post, we'll break down the process of getting valid coordinates from a polyline using the necessary Objective-C code, ensuring you can place markers or handle the map data effectively. Understanding the Problem When working with MKPolyline, developers often find that the coordinates they retrieve are raw map points, which do not represent latitude and longitude directly. For instance, you may come across output like this: [[See Video to Reveal this Text or Code Snippet]] Here, the output doesn't match the input coordinates you provided, such as: [[See Video to Reveal this Text or Code Snippet]] The Solution: Converting Map Points to Coordinates The key to resolving this issue is to convert the raw map points represented by route.polyline.points into readable geographical coordinates (CLLocationCoordinate2D). Let’s break down the code step by step. Step 1: Setup Your MKDirectionsRequest You need to set up a MKDirectionsRequest to define your route: [[See Video to Reveal this Text or Code Snippet]] Step 2: Handle the Direction Calculation You can compute the directions as follows: [[See Video to Reveal this Text or Code Snippet]] Step 3: Convert Map Points to Coordinates Instead of logging the raw map points directly, you will convert them using MKCoordinateForMapPoint: [[See Video to Reveal this Text or Code Snippet]] Conclusion By converting the MKPolyline map points to valid geographic coordinates, you can seamlessly integrate location markers or any desired features along your route. This conversion process ensures you have the accurate latitude and longitude necessary for any mapping functionalities in your iOS applications. Implementing these steps in your code will help you manage coordinate data professionally and effectively. Happy coding!