Inherits from SPPoolObject : NSObject
Conforms to NSCopying
Declared in SPRectangle.h

Overview

The SPRectangle class describes a rectangle by its top-left corner point (x, y) and by its width and height.

Tasks

Initializers

Methods

Properties

  •   x

    The x coordinate of the rectangle.

         property
  •   y

    The y coordinate of the rectangle.

         property
  •   width

    The width of the rectangle.

         property
  •   height

    The height of the rectangle.

         property
  •   top

    The y coordinate of the rectangle.

         property
  •   bottom

    The sum of the y and height properties.

         property
  •   left

    The x coordinate of the rectangle.

         property
  •   right

    The sum of the x and width properties.

         property
  •   topLeft

    The location of the top-left corner, determined by the x and y coordinates of the point.

         property
  •   bottomRight

    The location of the bottom-right corner, determined by the values of the right and bottom properties.

         property
  •   size

    The size of the Rectangle object, determined by the values of the width and height properties.

         property
  •   isEmpty

    Determines if a rectangle has an empty area.

         property

Properties

bottom

The sum of the y and height properties.

@property (nonatomic, assign) float bottom

Discussion

The sum of the y and height properties.

Declared In

SPRectangle.h

bottomRight

The location of the bottom-right corner, determined by the values of the right and bottom properties.

@property (nonatomic, copy) SPPoint *bottomRight

Discussion

The location of the bottom-right corner, determined by the values of the right and bottom properties.

Declared In

SPRectangle.h

height

The height of the rectangle.

@property (nonatomic, assign) float height

Discussion

The height of the rectangle.

Declared In

SPRectangle.h

isEmpty

Determines if a rectangle has an empty area.

@property (nonatomic, readonly) BOOL isEmpty

Discussion

Determines if a rectangle has an empty area.

Declared In

SPRectangle.h

left

The x coordinate of the rectangle.

@property (nonatomic, assign) float left

Discussion

The x coordinate of the rectangle.

Declared In

SPRectangle.h

right

The sum of the x and width properties.

@property (nonatomic, assign) float right

Discussion

The sum of the x and width properties.

Declared In

SPRectangle.h

size

The size of the Rectangle object, determined by the values of the width and height properties.

@property (nonatomic, copy) SPPoint *size

Discussion

The size of the Rectangle object, determined by the values of the width and height properties.

Declared In

SPRectangle.h

top

The y coordinate of the rectangle.

@property (nonatomic, assign) float top

Discussion

The y coordinate of the rectangle.

Declared In

SPRectangle.h

topLeft

The location of the top-left corner, determined by the x and y coordinates of the point.

@property (nonatomic, copy) SPPoint *topLeft

Discussion

The location of the top-left corner, determined by the x and y coordinates of the point.

Declared In

SPRectangle.h

width

The width of the rectangle.

@property (nonatomic, assign) float width

Discussion

The width of the rectangle.

Declared In

SPRectangle.h

x

The x coordinate of the rectangle.

@property (nonatomic, assign) float x

Discussion

The x coordinate of the rectangle.

Declared In

SPRectangle.h

y

The y coordinate of the rectangle.

@property (nonatomic, assign) float y

Discussion

The y coordinate of the rectangle.

Declared In

SPRectangle.h

Class Methods

rectangleWithX:y:width:height:

Factory method.

+ (SPRectangle *)rectangleWithX:(float)x y:(float)y width:(float)width height:(float)height

Discussion

Factory method.

Declared In

SPRectangle.h

Instance Methods

containsPoint:

Determines if a point is within the rectangle.

- (BOOL)containsPoint:(SPPoint *)point

Discussion

Determines if a point is within the rectangle.

Declared In

SPRectangle.h

containsRectangle:

Determines if another rectangle is within the rectangle.

- (BOOL)containsRectangle:(SPRectangle *)rectangle

Discussion

Determines if another rectangle is within the rectangle.

Declared In

SPRectangle.h

containsX:y:

Determines if a point is within the rectangle.

- (BOOL)containsX:(float)x y:(float)y

Discussion

Determines if a point is within the rectangle.

Declared In

SPRectangle.h

initWithX:y:width:height:

Initializes a rectangle with the specified components. Designated Initializer.

- (id)initWithX:(float)x y:(float)y width:(float)width height:(float)height

Discussion

Initializes a rectangle with the specified components. Designated Initializer.

Declared In

SPRectangle.h

intersectionWithRectangle:

If the specified rectangle intersects with the rectangle, returns the area of intersection.

- (SPRectangle *)intersectionWithRectangle:(SPRectangle *)rectangle

Discussion

If the specified rectangle intersects with the rectangle, returns the area of intersection.

Declared In

SPRectangle.h

intersectsRectangle:

Determines if another rectangle contains or intersects the rectangle.

- (BOOL)intersectsRectangle:(SPRectangle *)rectangle

Discussion

Determines if another rectangle contains or intersects the rectangle.

Declared In

SPRectangle.h

isEquivalent:

Compares two points.

- (BOOL)isEquivalent:(SPRectangle *)other

Discussion

Compares two points.

Declared In

SPRectangle.h

setEmpty

Sets width and height components to zero.

- (void)setEmpty

Discussion

Sets width and height components to zero.

Declared In

SPRectangle.h

uniteWithRectangle:

Adds two rectangles together to create a new Rectangle object (by filling in the space between the two rectangles).

- (SPRectangle *)uniteWithRectangle:(SPRectangle *)rectangle

Discussion

Adds two rectangles together to create a new Rectangle object (by filling in the space between the two rectangles).

Declared In

SPRectangle.h