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.

  • Unavailable

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

    Default -init is disabled..

    Declaration

    Objective-C

    - (instancetype _Nonnull)init;

  • 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

  • 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.