2014/10/15 下午 10:05:06

iphone Programming Glossary: circlewithcentercoordinate

Multiple MKOverlays on a MKMapView lead to memory warnings

http://stackoverflow.com/questions/3370328/multiple-mkoverlays-on-a-mkmapview-lead-to-memory-warnings

if circle nil draw the radius circle for the marker double radius MAX zone.markerRadius 1.0 1.0 circle MKCircle circleWithCenterCoordinate zone.location radius radius mapView addOverlay circle store the circle in a cache for future reference overlayCache setObject..

MKOverlay not resizing smoothly

http://stackoverflow.com/questions/4876035/mkoverlay-not-resizing-smoothly

This is my code void addCircle draw the radius circle for the marker double radius 2000.0 MKCircle circle MKCircle circleWithCenterCoordinate location radius radius circle setTitle @ background mapView addOverlay circle MKCircle circleLine MKCircle circleWithCenterCoordinate.. location radius radius circle setTitle @ background mapView addOverlay circle MKCircle circleLine MKCircle circleWithCenterCoordinate location radius radius circleLine setTitle @ line mapView addOverlay circleLine void addCircleWithRadius double radius MKCircle.. setTitle @ line mapView addOverlay circleLine void addCircleWithRadius double radius MKCircle circle MKCircle circleWithCenterCoordinate location radius radius circle setTitle @ background mapView addOverlay circle MKCircle circleLine MKCircle circleWithCenterCoordinate..

Create overlay from user interaction on MKMapView?

http://stackoverflow.com/questions/5223195/create-overlay-from-user-interaction-on-mkmapview

mapView addAnnotation pa pa release add circle with 5km radius where user touched down... MKCircle circle MKCircle circleWithCenterCoordinate touchMapCoordinate radius 5000 mapView addOverlay circle MKOverlayView mapView MKMapView mapView viewForOverlay id overlay..

Debugging crash in CoreGraphics/MapKit

http://stackoverflow.com/questions/8266950/debugging-crash-in-coregraphics-mapkit

addOverlays CLLocation currentLocation self.mapView.userLocation.location for int i 0 i 50 i MKCircle circle MKCircle circleWithCenterCoordinate currentLocation.coordinate radius 50 self.mapView addOverlay circle over time this can add up to a large number of overlays.. it to an NSArray that you use to keep track of ALL the overlays self.allOverlays addObject MKCircle circle MKCircle circleWithCenterCoordinate currentLocation.coordinate radius 50 Now add it to the mapView if it is in the current region code to check to see if currentLocation..