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Specifies the map projection.
You can use one of the following out-of-the-box projections:
To set a custom projection, implement two functions (from and to) that convert coordinates between geographical and UI component coordinate systems. In addition, set the projection's aspectRatio.
Custom Projection Demo
Floor Plan Demo
Specifies the projection's ratio of the width to the height.
Extreme points of the UI component coordinate system form a square. Set this property to change the projection's form; for example, make the width more than height.
Converts coordinates from [x, y] to [lon, lat].
Two coordinates that represent a point in the UI component coordinate system.
Each coordinate ranges from -1 to 1.
Two coordinates that represent the same point in the dataSource coordinate system.
Converts coordinates from [lon, lat] to [x, y].
Two coordinates that represent a point in the dataSource coordinate system.
Two coordinates that represent the same point in the UI component coordinate system.
Each coordinate should be in the range from -1 to 1.