MGLSymbolZOrder
enum MGLSymbolZOrder : NSUInteger {}
Controls the order in which overlapping symbols in the same layer are rendered
Values of this type are used in the MGLSymbolStyleLayer.symbolZOrder
property.
-
If
MGLSymbolStyleLayer.symbolSortKey
is set, sort based on that. Otherwise sort symbols by their y-position relative to the viewport.Declaration
Objective-C
MGLSymbolZOrderAuto
Swift
case auto = 0
-
Specify this z order if symbols’ appearance relies on lower features overlapping higher features. For example, symbols with a pin-like appearance would require this z order.
Declaration
Objective-C
MGLSymbolZOrderViewportY
Swift
case viewportY = 1
-
Specify this z order if the order in which features appear in the source is significant.
Declaration
Objective-C
MGLSymbolZOrderSource
Swift
case source = 2