swift ios objective-c xcode cocoapods nga objective-c-library projection ios-lib ogc wkt projections crs proj proj4 well-known-text well-known coordinate-reference-system coordinate-reference-systems wkt-crs

swift ios objective-c xcode cocoapods nga objective-c-library ios-lib ogc wkt projections crs proj coordinate-transformation proj4 well-known-text coordinate-transformations coordinate-reference-system coordinate-reference-systems wkt-crs

nga projection ogc features projections proj4 simple-features