Function

MKMapRectIsNull

Returns a Boolean indicating whether the specified rectangle is null.

Declaration

BOOL MKMapRectIsNull(MKMapRect rect);

Parameters

rect

The rectangle to test.

Return Value

YES if the rectangle is null or NO if it is not null.

Discussion

A rectangle is considered null if its origin point contains an invalid or infinite value.

See Also

Comparing Rectangles

MKMapRectEqualToRect

Returns a Boolean value indicating whether the two map rectangles are equal

MKMapRectIsEmpty

Returns a Boolean value indicating whether the specified rectangle has no area.

MKMapRectSpans180thMeridian

Returns a Boolean value that indicates whether the specified map rectangle crosses the 180th meridian.

MKMapRectRemainder

Normalizes the portion of the specified rectangle that lies outside the world map boundaries.