2014/10/15 下午 10:16:03

iphone Programming Glossary: x1

A question on how to Get data from plist & how should it be layout

http://stackoverflow.com/questions/1605310/a-question-on-how-to-get-data-from-plist-how-should-it-be-layout

purposes. This is how i layout my plist randImage callout array p1.jpg image represented by array tap1 Array item 1 x1 coordinate Number item 2 y1 coordinate Number item 3 x2 coordinate Number item 4 y2 coordinate Number item 5 x3 coordinate.. Number item 4 y2 coordinate Number item 5 x3 coordinate Number item 6 y3 coordinate Number tap2 Array item 1 x1 coordinate Number item 2 y1 coordinate Number item 3 x2 coordinate Number item 4 y2 coordinate Number p2.jpg image represented..

Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints?

http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints

viewer and am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll the pages..

Find the tangent of a point on a cubic bezier curve (on an iPhone)

http://stackoverflow.com/questions/4089443/find-the-tangent-of-a-point-on-a-cubic-bezier-curve-on-an-iphone

t c 3 c 3 t t2 d t3 CGFloat bezierTangent CGFloat t CGFloat a CGFloat b CGFloat c CGFloat d note that abcd are aka x0 x1 x2 x3 the four coefficients .. A x3 3 x2 3 x1 x0 B 3 x2 6 x1 3 x0 C 3 x1 3 x0 D x0 and then... Vx 3At2 2Bt C first calcuate.. t CGFloat a CGFloat b CGFloat c CGFloat d note that abcd are aka x0 x1 x2 x3 the four coefficients .. A x3 3 x2 3 x1 x0 B 3 x2 6 x1 3 x0 C 3 x1 3 x0 D x0 and then... Vx 3At2 2Bt C first calcuate what are usually know as the coeffients they.. a CGFloat b CGFloat c CGFloat d note that abcd are aka x0 x1 x2 x3 the four coefficients .. A x3 3 x2 3 x1 x0 B 3 x2 6 x1 3 x0 C 3 x1 3 x0 D x0 and then... Vx 3At2 2Bt C first calcuate what are usually know as the coeffients they are trivial..

Point to location using compass

http://stackoverflow.com/questions/5092845/point-to-location-using-compass

CLLocation location locationManager location CLLocationCoordinate2D coordinate location coordinate float x1 coordinate.latitude float y1 coordinate.longitude float x2 annLatitude floatValue float y2 annLongitude floatValue float.. float y1 coordinate.longitude float x2 annLatitude floatValue float y2 annLongitude floatValue float dx x2 x1 float dy y2 y1 if dx 0 if dy 0 result 90 else result 270 else result atan dy dx 180 M_PI if dx 0 result result 180 if..

Why is UIBezierPath faster than Core Graphics path?

http://stackoverflow.com/questions/6327817/why-is-uibezierpath-faster-than-core-graphics-path

200 CGFloat cgBaseline 100 CGFloat uiBaseline 200 CGFloat xincrement self.bounds.size.width iterations for CGFloat x1 0 x2 xincrement x2 self.bounds.size.width x1 x2 x2 xincrement CGPathAddCurveToPoint cgpath NULL x1 cgBaseline 50 x2 cgBaseline.. 200 CGFloat xincrement self.bounds.size.width iterations for CGFloat x1 0 x2 xincrement x2 self.bounds.size.width x1 x2 x2 xincrement CGPathAddCurveToPoint cgpath NULL x1 cgBaseline 50 x2 cgBaseline 50 x2 cgBaseline uipath addCurveToPoint.. for CGFloat x1 0 x2 xincrement x2 self.bounds.size.width x1 x2 x2 xincrement CGPathAddCurveToPoint cgpath NULL x1 cgBaseline 50 x2 cgBaseline 50 x2 cgBaseline uipath addCurveToPoint CGPointMake x2 uiBaseline controlPoint1 CGPointMake..

Rotate a Sprite on a bezier path with touch - Cocos2D/Box2D

http://stackoverflow.com/questions/7494795/rotate-a-sprite-on-a-bezier-path-with-touch-cocos2d-box2d

permanent initialization of 100 guides and it works without CPU overload. Each bezier curve is an array with 8 floats x1 y1 x2 y2 x3 y3 x4 y4. where x1 y1 and x4 y4 are the arc's end points and x2 y2 and x3 y3 are the cubic bezier's control.. guides and it works without CPU overload. Each bezier curve is an array with 8 floats x1 y1 x2 y2 x3 y3 x4 y4. where x1 y1 and x4 y4 are the arc's end points and x2 y2 and x3 y3 are the cubic bezier's control points. @note adapted for xCode.. Valentine Konov valentine @konov.su 2013 @param from radians a1 to a2 where a2 a1 pi 2 @return an array with 8 floats x1 y1 x2 y2 x3 y3 x4 y4. where x1 y1 and x4 y4 are the arc's end points and x2 y2 and x3 y3 are the cubic bezier's control..