[](https://travis-ci.org/Jakub Dubrovsky/Proj4)

Wrapper for Proj4js, library to transform coordinates from one coordinate system to another.

    MOBProj4 *proj4 = [[MOBProj4 alloc] init];
    
    MOBProjection *projFrom = [[MOBProjectionEPSG5514 alloc] init];
    MOBProjection *projTo = [[MOBProjectionEPSG4326 alloc] init];
    
    MOBCoordinate *coor = [[MOBCoordinate alloc] initWithArrayXY:@[@-741370.14465332,@-1032965.4422302]];   //  Coordinates in projFrom format
    
    MOBCoordinate *coorTo = [proj4 transformFromProjection:projFrom toProjection:projTo coordinate:coor];
    NSLog(@"Coordinates %@ in EPSG:%lu", coorTo, [projTo epsg]);

To run the example project, clone the repo, and run pod install from the Example directory first.

Proj4 is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'Proj4', :git => 'https://github.com/jkdubr/Proj4.git'

All definitions of projections are in folder https://github.com/jkdubr/Proj4/tree/master/Pod/Classes/Projection, it is more than 4000 files, because of optimalization, include to Pod folder just projections what you need. Projections EPSG4326 and EPSG5514 are included.

Jakub Dubrovsky, jkdubr@me.com

Proj4 is available under the MIT license. See the LICENSE file for more info.