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2014/10/15 ¤U¤È 10:05:40

iphone Programming Glossary: cos

Curve text on existing circle

http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle

char menuItemTextChar char menuItemText cStringUsingEncoding NSASCIIStringEncoding float x centerPoint.x radius cos degreesToRadians totalRotation float y centerPoint.y radius sin degreesToRadians totalRotation CGContextSaveGState context.. sizeWithFont self.menuItemsFont NSLog @ Char @ with size f x f letter charSize.width charSize.height float x radius cos angle float y radius sin angle float letterAngle charSize.width perimeter 2 M_PI CGContextSaveGState context CGContextTranslateCTM..

CLLocation Category for Calculating Bearing w/ Haversine function

http://stackoverflow.com/questions/3925942/cllocation-category-for-calculating-bearing-w-haversine-function

double lon2 DegreesToRadians destinationLocation.coordinate.longitude double dLon lon2 lon1 double y sin dLon cos lat2 double x cos lat1 sin lat2 sin lat1 cos lat2 cos dLon double radiansBearing atan2 y x return RadiansToDegrees radiansBearing.. DegreesToRadians destinationLocation.coordinate.longitude double dLon lon2 lon1 double y sin dLon cos lat2 double x cos lat1 sin lat2 sin lat1 cos lat2 cos dLon double radiansBearing atan2 y x return RadiansToDegrees radiansBearing iphone.. double dLon lon2 lon1 double y sin dLon cos lat2 double x cos lat1 sin lat2 sin lat1 cos lat2 cos dLon double radiansBearing atan2 y x return RadiansToDegrees radiansBearing iphone mapkit core location cllocation..

iPhone Compass GPS Direction

http://stackoverflow.com/questions/4130821/iphone-compass-gps-direction

alon float tLat self angleToRadians blat float tLng self angleToRadians blon float temp atan2 sin tLng fLng cos tLat cos fLat sin tLat sin fLat cos tLat cos tLng fLng double temp2 previousHeading double temp1 temp self angleToRadians.. alon float tLat self angleToRadians blat float tLng self angleToRadians blon float temp atan2 sin tLng fLng cos tLat cos fLat sin tLat sin fLat cos tLat cos tLng fLng double temp2 previousHeading double temp1 temp self angleToRadians temp2 I.. blat float tLng self angleToRadians blon float temp atan2 sin tLng fLng cos tLat cos fLat sin tLat sin fLat cos tLat cos tLng fLng double temp2 previousHeading double temp1 temp self angleToRadians temp2 I using this but it can't rotate..

Get RGB value from UIColor presets

http://stackoverflow.com/questions/4700168/get-rgb-value-from-uicolor-presets

Calculate new coordinate x meters and y degree away from one coordinate

http://stackoverflow.com/questions/6633850/calculate-new-coordinate-x-meters-and-y-degree-away-from-one-coordinate

double fromLonRadians self radiansFromDegrees fromCoord.longitude double toLatRadians asin sin fromLatRadians cos distanceRadians cos fromLatRadians sin distanceRadians cos bearingRadians double toLonRadians fromLonRadians atan2 sin bearingRadians.. self radiansFromDegrees fromCoord.longitude double toLatRadians asin sin fromLatRadians cos distanceRadians cos fromLatRadians sin distanceRadians cos bearingRadians double toLonRadians fromLonRadians atan2 sin bearingRadians sin distanceRadians.. double toLatRadians asin sin fromLatRadians cos distanceRadians cos fromLatRadians sin distanceRadians cos bearingRadians double toLonRadians fromLonRadians atan2 sin bearingRadians sin distanceRadians cos fromLatRadians cos distanceRadians..