diff options
Diffstat (limited to 'platform/ios/app/MBXViewController.m')
| -rw-r--r-- | platform/ios/app/MBXViewController.m | 104 |
1 files changed, 103 insertions, 1 deletions
diff --git a/platform/ios/app/MBXViewController.m b/platform/ios/app/MBXViewController.m index 2c3d26b489..4306354030 100644 --- a/platform/ios/app/MBXViewController.m +++ b/platform/ios/app/MBXViewController.m @@ -75,6 +75,7 @@ typedef NS_ENUM(NSInteger, MBXSettingsRuntimeStylingRows) { MBXSettingsRuntimeStylingImageSource, MBXSettingsRuntimeStylingRouteLine, MBXSettingsRuntimeStylingDDSPolygon, + MBXSettingsRuntimeStylingCustomLatLonGrid, }; typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { @@ -111,7 +112,8 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { @interface MBXViewController () <UITableViewDelegate, UITableViewDataSource, - MGLMapViewDelegate> + MGLMapViewDelegate, + MGLComputedShapeSourceDataSource> @property (nonatomic) IBOutlet MGLMapView *mapView; @@ -353,6 +355,7 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { @"Style Image Source", @"Add Route Line", @"Dynamically Style Polygon", + @"Add Custom Lat/Lon Grid", ]]; break; case MBXSettingsMiscellaneous: @@ -529,6 +532,9 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { case MBXSettingsRuntimeStylingDDSPolygon: [self stylePolygonWithDDS]; break; + case MBXSettingsRuntimeStylingCustomLatLonGrid: + [self addLatLonGrid]; + break; default: NSAssert(NO, @"All runtime styling setting rows should be implemented"); break; @@ -1445,6 +1451,54 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { [self.mapView.style addLayer:fillStyleLayer]; } +- (void)addLatLonGrid +{ + MGLComputedShapeSource *source = [[MGLComputedShapeSource alloc] initWithIdentifier:@"latlon" + options:@{MGLShapeSourceOptionMaximumZoomLevel:@14}]; + source.dataSource = self; + [self.mapView.style addSource:source]; + MGLLineStyleLayer *lineLayer = [[MGLLineStyleLayer alloc] initWithIdentifier:@"latlonlines" + source:source]; + [self.mapView.style addLayer:lineLayer]; + MGLSymbolStyleLayer *labelLayer = [[MGLSymbolStyleLayer alloc] initWithIdentifier:@"latlonlabels" + source:source]; + labelLayer.text = [MGLStyleValue valueWithRawValue:@"{value}"]; + [self.mapView.style addLayer:labelLayer]; +} + +- (void)styleLabelLanguageForLayersNamed:(NSArray<NSString *> *)layers +{ + _usingLocaleBasedCountryLabels = !_usingLocaleBasedCountryLabels; + NSString *bestLanguageForUser = [NSString stringWithFormat:@"{name_%@}", [self bestLanguageForUser]]; + NSString *language = _usingLocaleBasedCountryLabels ? bestLanguageForUser : @"{name}"; + + for (NSString *layerName in layers) { + MGLSymbolStyleLayer *layer = (MGLSymbolStyleLayer *)[self.mapView.style layerWithIdentifier:layerName]; + + if ([layer isKindOfClass:[MGLSymbolStyleLayer class]]) { + if ([layer.text isKindOfClass:[MGLStyleConstantValue class]]) { + MGLStyleConstantValue *label = (MGLStyleConstantValue<NSString *> *)layer.text; + if ([label.rawValue hasPrefix:@"{name"]) { + layer.text = [MGLStyleValue valueWithRawValue:language]; + } + } + else if ([layer.text isKindOfClass:[MGLCameraStyleFunction class]]) { + MGLCameraStyleFunction *function = (MGLCameraStyleFunction<NSString *> *)layer.text; + NSMutableDictionary *stops = function.stops.mutableCopy; + [stops enumerateKeysAndObjectsUsingBlock:^(NSNumber *zoomLevel, MGLStyleConstantValue<NSString *> *stop, BOOL *done) { + if ([stop.rawValue hasPrefix:@"{name"]) { + stops[zoomLevel] = [MGLStyleValue<NSString *> valueWithRawValue:language]; + } + }]; + function.stops = stops; + layer.text = function; + } + } else { + NSLog(@"%@ is not a symbol style layer", layerName); + } + } +} + - (NSString *)bestLanguageForUser { // https://www.mapbox.com/vector-tiles/mapbox-streets-v7/#overview @@ -1910,4 +1964,52 @@ typedef NS_ENUM(NSInteger, MBXSettingsMiscellaneousRows) { [self.hudLabel setTitle:hudString forState:UIControlStateNormal]; } +#pragma mark - MGLComputedShapeSourceDataSource + +- (NSArray<id <MGLFeature>>*)featuresInCoordinateBounds:(MGLCoordinateBounds)bounds zoomLevel:(NSUInteger)zoom { + double gridSpacing; + if(zoom >= 13) { + gridSpacing = 0.01; + } else if(zoom >= 11) { + gridSpacing = 0.05; + } else if(zoom == 10) { + gridSpacing = .1; + } else if(zoom == 9) { + gridSpacing = 0.25; + } else if(zoom == 8) { + gridSpacing = 0.5; + } else if (zoom >= 6) { + gridSpacing = 1; + } else if(zoom == 5) { + gridSpacing = 2; + } else if(zoom >= 4) { + gridSpacing = 5; + } else if(zoom == 2) { + gridSpacing = 10; + } else { + gridSpacing = 20; + } + + NSMutableArray <id <MGLFeature>> * features = [NSMutableArray array]; + CLLocationCoordinate2D coords[2]; + + for (double y = ceil(bounds.ne.latitude / gridSpacing) * gridSpacing; y >= floor(bounds.sw.latitude / gridSpacing) * gridSpacing; y -= gridSpacing) { + coords[0] = CLLocationCoordinate2DMake(y, bounds.sw.longitude); + coords[1] = CLLocationCoordinate2DMake(y, bounds.ne.longitude); + MGLPolylineFeature *feature = [MGLPolylineFeature polylineWithCoordinates:coords count:2]; + feature.attributes = @{@"value": @(y)}; + [features addObject:feature]; + } + + for (double x = floor(bounds.sw.longitude / gridSpacing) * gridSpacing; x <= ceil(bounds.ne.longitude / gridSpacing) * gridSpacing; x += gridSpacing) { + coords[0] = CLLocationCoordinate2DMake(bounds.sw.latitude, x); + coords[1] = CLLocationCoordinate2DMake(bounds.ne.latitude, x); + MGLPolylineFeature *feature = [MGLPolylineFeature polylineWithCoordinates:coords count:2]; + feature.attributes = @{@"value": @(x)}; + [features addObject:feature]; + } + + return features; +} + @end |