WhiteCameraBound Class Reference

Inherits from	WhiteObject
Declared in	WhiteCameraBound.h

Overview

The boundaries for the view.

The area enclosed by the boundaries is the viewable area. Within the viewable area, the user can flexibly move or zoom the view. When the user tries to move the view beyond the viewable area, the SDK automatically drags the view back into the viewable area.

`– initWithCenter:minContent:maxContent:`

Sets the center of the viewable area and initializes the WhiteCameraBound object.

- (instancetype)initWithCenter:(CGPoint)visionCenter minContent:(WhiteContentModeConfig *)minConfig maxContent:(WhiteContentModeConfig *)maxConfig

Parameters

`visionCenter`	The coordinate of the center in the viewable area in the world coordinate system (taking the center of the initial whiteboard as the origin).
`minConfig`	The minimum scale factor of the viewable area.
`maxConfig`	The maximum scale factor of the viewable area.

Return Value

An initialized WhiteCameraBound object.

Declared In

WhiteCameraBound.h

`– initWithFrame:minContent:maxContent:`

Sets the frame of the viewable area and initializes the WhiteCameraBound object.

- (instancetype)initWithFrame:(CGRect)visionFrame minContent:(WhiteContentModeConfig *)minConfig maxContent:(WhiteContentModeConfig *)maxConfig

Parameters

`visionFrame`	The frame, that is, the value of (width * height) of the viewable area。
`minConfig`	The minimum frame (`visionFrame` * `miniScale`) of the viewable area.
`maxConfig`	The maximum frame (`visionFrame` * `maxScale`) of the viewable area.

Return Value

An initialized WhiteCameraBound object.

Declared In

WhiteCameraBound.h

`+ defaultMinContentModeScale:maxContentModeScale:`

Sets the default minimum scale mode of the viewable area.

+ (instancetype)defaultMinContentModeScale:(CGFloat)miniScale maxContentModeScale:(CGFloat)maxScale

Parameters

`miniScale`	The minimum scale factor of the viewable area.
`maxScale`	The maximum scale factor of the viewable area.

Declared In

WhiteCameraBound.h

`centerX`

The X coordinate of the center of the viewable area in the world coordinate system. The default value is 0.0.

@property (nonatomic, nullable, strong) NSNumber *centerX

Declared In

WhiteCameraBound.h

`centerY`

The Y coordinate of the center of the viewable area in the world coordinate system. The default value is 0.0.

@property (nonatomic, nullable, strong) NSNumber *centerY

Declared In

WhiteCameraBound.h

`width`

The width (pixels) of the viewable area. If you do not set this parameter, the viewable area has no width limit.

@property (nonatomic, nullable, strong) NSNumber *width

Declared In

WhiteCameraBound.h

`height`

The height (pixels) of the viewable area. If you do not set this parameter, the viewable area has no height limit.

@property (nonatomic, nullable, strong) NSNumber *height

Declared In

WhiteCameraBound.h

`maxContentMode`

The scale mode and the maximum scale factor of the viewable area. See WhiteContentModeConfig.

@property (nonatomic, nullable, strong) WhiteContentModeConfig *maxContentMode

Declared In

WhiteCameraBound.h

`minContentMode`

The scale mode and the minimum scale factor of the viewable area. See WhiteContentModeConfig.

@property (nonatomic, nullable, strong) WhiteContentModeConfig *minContentMode

Declared In

WhiteCameraBound.h