GLMapImageGroup

Objective-C


@interface GLMapImageGroup : GLMapDrawObject

Swift

class GLMapImageGroup : GLMapDrawObject

GLMapImageGroup is a bridge class, to work with GLMap internal representation of an image group. Image groups are used to display a small set of images for a large number of locations, e.g., 1000 locations on a map, but only with 10 different images.

-init
Unavailable

GLMapImageGroup should be created with - [GLMapImageGroup initWithCallback: andDrawOrder:]

Default -init is disabled..
Declaration
Objective-C

- (instancetype _Nonnull)init;


                    
                    
                    -initWithCallback:andDrawOrder:

Initializes an instance of GLMapImageGroup. Note that if GLMapImageGroup is added to multiple mapViews, multiple updates can happen simultaneously ([GLMapImageGroupDataSource startUpdate] and [GLMapImageGroupDataSource endUpdate] will be balanced).

Declaration

Objective-C

- (instancetype _Nonnull)initWithCallback:
                             (id<GLMapImageGroupDataSource> _Nonnull)callback
                             andDrawOrder:(int)drawOrder;

Swift

init(callback: any GLMapImageGroupDataSource, andDrawOrder drawOrder: Int32)

Parameters

`callback`	The callback providing image information.
`drawOrder`	The draw order of the object.

Methods


                    
                    
                    -setNeedsUpdate:

Starts updating the image group.

Declaration

Objective-C

- (void)setNeedsUpdate:(BOOL)updateVariants;

Swift

func setNeedsUpdate(_ updateVariants: Bool)

Parameters


                                updateVariants

If YES, image variants will be updated, otherwise only images and their positions will be updated.