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AnimateGeoJSONLineExample.m
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AnimateGeoJSONLineExample.m
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//
// AnimateGeoJSONLineExample.m
// mapboxqs
//
// Created by Tuyen Vu on 11/03/2023.
//
#import "AnimateGeoJSONLineExample.h"
#import <MapboxMaps/MapboxMaps.h>
#import <MapboxCoreMaps/MapboxCoreMaps.h>
#import <MapboxMapObjC/MapboxMapObjC.h>
#import <MapboxCommon/MapboxCommon.h>
#import "MapboxMaps-Swift.h"
#import <MapKit/MapKit.h>
@interface AnimateGeoJSONLineExample ()
@property int currentIndex;
@property TMBGeoJSONSource* routeLineSource;
@property MapView* mapView;
@property NSString* sourceIdentifier;
@property NSArray* allCoordinates;
@end
@implementation AnimateGeoJSONLineExample {
TMBCancelable* cancelables;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.sourceIdentifier = @"route-source-identifier";
self.allCoordinates = @[
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.52214, -122.63748)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.52218, -122.64855)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.52219, -122.6545)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.52196, -122.65497)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.52104, -122.65631)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51935, -122.6578)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51848, -122.65867)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51293, -122.65872)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51295, -122.66576)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51252, -122.66745)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51244, -122.66813)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51385, -122.67359)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51406, -122.67415)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51484, -122.67481)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51532, -122.676)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.51668, -122.68106)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50934, -122.68503)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50858, -122.68546)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50783, -122.6852)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50714, -122.68424)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50585, -122.68433)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50521, -122.68429)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50445, -122.68456)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50371, -122.68538)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50311, -122.68653)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50292, -122.68731)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50253, -122.68742)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50239, -122.6867)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.5026, -122.68545)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50294, -122.68407)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50271, -122.68357)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.50055, -122.68236)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49994, -122.68233)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49955, -122.68267)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49919, -122.68257)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49842, -122.68376)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49821, -122.68428)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49798, -122.68573)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49805, -122.68923)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49857, -122.68926)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49911, -122.68814)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49921, -122.68865)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49905, -122.6897)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49917, -122.69346)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49902, -122.69404)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49796, -122.69438)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49697, -122.69504)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49661, -122.69624)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.4955, -122.69781)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49517, -122.69803)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49508, -122.69711)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.4948, -122.69688)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49368, -122.69744)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49311, -122.69702)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49294, -122.69665)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49212, -122.69788)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49264, -122.69771)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49332, -122.69835)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49334, -122.7007)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49358, -122.70167)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49401, -122.70215)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49439, -122.70229)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49566, -122.70185)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49635, -122.70215)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49674, -122.70346)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49758, -122.70517)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49736, -122.70614)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49736, -122.70663)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49767, -122.70807)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49798, -122.70807)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49798, -122.70717)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.4984, -122.70713)],
[NSValue valueWithMKCoordinate: CLLocationCoordinate2DMake(45.49893, -122.70774)]
];
CLLocationCoordinate2D centerLocation = CLLocationCoordinate2DMake(45.5076, -122.6736);
TMBCameraOptions* cameraOptions = [[TMBCameraOptions alloc] initWithCenter:centerLocation padding:UIEdgeInsetsMake(0, 0, 0, 0) anchor:CGPointMake(0, 0) zoom:11 bearing:0 pitch:0];
MapInitOptions* options = [MapInitOptionsFactory
createWithMapOptions:nil
cameraOptions:cameraOptions
styleURI:nil
styleJSON:nil
antialiasingSampleCount:1];
self.mapView = [MapViewFactory createWithFrame:self.view.bounds
options:options];
self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
// Wait for the map to load its style before adding data.
cancelables = [self.mapView.mapboxMap onMapLoaded:^(id _Nonnull _) {
[self addLine];
[self animatePolyline];
// The below line is used for internal testing purposes only.
if ([self respondsToSelector:@selector(finish)]) {
[self finish];
}
}];
[self.view addSubview:self.mapView];
}
- (void) addLine {
// Create a GeoJSON data source.
self.routeLineSource = [[TMBGeoJSONSource alloc] initWithId: self.sourceIdentifier];
MBXGeometry* geometry = [[MBXGeometry alloc] initWithLine:@[self.allCoordinates[self.currentIndex]]];
MBXFeature* feature = [[MBXFeature alloc] initWithIdentifier:[NSObject new] geometry:geometry properties:@{}];
self.routeLineSource.data = [TMBGeoJSONSourceData feature:feature];
// Create a line layer
TMBLineLayer* lineLayer = [[TMBLineLayer alloc] initWithId:@"line-layer" source: self.sourceIdentifier];
lineLayer.lineColor = [TMBValue constant:UIColor.redColor];
float lowZoomWidth = 5;
float highZoomWidth = 20;
// Use an expression to define the line width at different zoom extents
TMBExpression* expression = [TMBExpression interpolate:@[
[TMBExpression linear],
[TMBExpression zoom],
@14,
[NSNumber numberWithFloat:lowZoomWidth],
@18,
[NSNumber numberWithFloat:highZoomWidth]
]];
lineLayer.lineWidth = [TMBValue expression:expression];
lineLayer.lineCap = [TMBValue lineCap:[TMBLineCap round]];
lineLayer.lineJoin = [TMBValue lineJoin:[TMBLineJoin round]];
// Add the lineLayer to the map.
[self.mapView.mapboxMap addSource:self.routeLineSource dataId:nil completion:^(NSError * _Nullable error) {
if (error) {
NSLog(@"addSource ERR: %@", error.debugDescription);
}
}];
[self.mapView.mapboxMap addLayer:lineLayer layerPosition:nil completion:^(NSError * _Nullable error) {
if (error) {
NSLog(@"addLayer ERR: %@", error.debugDescription);
}
}];
}
- (void) animatePolyline {
// Start a timer that will add a new coordinate to the line and redraw it every time it repeats.
__weak AnimateGeoJSONLineExample *weakSelf = self;
[NSTimer scheduledTimerWithTimeInterval:0.10 repeats:true block:^(NSTimer * _Nonnull timer) {
if (!weakSelf) {
[timer invalidate];
return;
}
if (weakSelf.currentIndex >= weakSelf.allCoordinates.count) {
[timer invalidate];
return;
}
weakSelf.currentIndex++;
NSArray* currentCoordinates = [weakSelf.allCoordinates subarrayWithRange:NSMakeRange(0, weakSelf.currentIndex)];
MBXGeometry* geometry = [[MBXGeometry alloc] initWithLine:currentCoordinates];
MBXFeature* feature = [[MBXFeature alloc] initWithIdentifier:[NSObject new] geometry:geometry properties:@{}];
weakSelf.routeLineSource.data = [TMBGeoJSONSourceData feature:feature];
[weakSelf.mapView.mapboxMap updateGeoJSONSourceWithId:weakSelf.sourceIdentifier data:[TMBGeoJSONSourceData feature:feature] dataId:nil];
}];
}
@end