MQOverlayView Class Reference

Inheritance diagram for MQOverlayView:

Instance Methods
(BOOL)	- canDrawMapRect:zoomScale:
(void)	- drawMapRect:zoomScale:inContext:
(id)	- initWithOverlay:
(MQMapPoint)	- mapPointForPoint:
(MQMapRect)	- mapRectForRect:
(CGPoint)	- pointForMapPoint:
(CGRect)	- rectForMapRect:
(void)	- setNeedsDisplayInMapRect:
(void)	- setNeedsDisplayInMapRect:zoomScale:
(MQMapView *)	- mapViewForView:
(double)	- scale

Properties
id< MQOverlay >	overlay
	The overlay attached to this overlay view.

Detailed Description

The MQOverlayView is the base class for all overlay view implementations.

Method Documentation

- (BOOL) canDrawMapRect:		(MQMapRect)	mapRect
zoomScale:		(MQZoomScale)	zoomScale

Ask this overlay view if it can draw the given mapRect

Parameters

mapRect	The map rect that serves as the projected boundary around some annotations
zoomScale	The zoomScale to be drawn at

Returns

a BOOL whether the mapRect can be drawn

- (void) drawMapRect:		(MQMapRect)	mapRect
zoomScale:		(MQZoomScale)	zoomScale
inContext:		(CGContextRef)	context

Draw into the given mapRect at zoomScale using the passed context

Parameters

mapRect	The map rect that serves as the projected boundary around some annotations
zoomScale	The zoomScale to be drawn at
context	The context to draw into

Returns

a BOOL whether the mapRect can be drawn

- (id) initWithOverlay:

(id< MQOverlay >)

overlay

Initialization method for MQOverlayView

Parameters

overlay

An MQOverlay that this view will be representing on screen

Returns

a new MQOverlay object

- (MQMapPoint) mapPointForPoint:

(CGPoint)

point

Translate a screen point into a map point

Parameters

point

A screen point to be translated

Returns

a point in map points

- (MQMapRect) mapRectForRect:

(CGRect)

rect

Translate a screen region into a map region

Parameters

rect	A screen region to be translated

Returns

a region in map points

- (MQMapView*) mapViewForView:

(UIView *)

aView

The mapView that contains the given view

Parameters

aView

A view that is contained by the mapview

- (CGPoint) pointForMapPoint:

(MQMapPoint)

mapPoint

Translate a map point into a screen point

Parameters

mapPoint

A map point to be translated

Returns

a screen point

- (CGRect) rectForMapRect:

(MQMapRect)

mapRect

Translate a map region into a screen region

Parameters

mapRect

A map region to be translated

Returns

a screen region

- (double) scale

Get the current zoom scale

Returns

the current scale

- (void) setNeedsDisplayInMapRect:

(MQMapRect)

mapRect

Mark the overlay as needing to be redrawn

Parameters

mapRect

region that needs to be redrawn

- (void) setNeedsDisplayInMapRect:		(MQMapRect)	mapRect
zoomScale:		(MQZoomScale)	zoomScale

Mark the overlay as needing to be redrawn

Parameters

mapRect	region that needs to be redrawn
zoomScale	zoom scale at which the region needs to be redrawn

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The documentation for this class was generated from the following file:

• classes/MQOverlayView.h