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2014/10/15 ¤U¤È 10:05:32
iphone Programming Glossary: controlpoint2How to animate one image over the unusual curve path in my iPad application? http://stackoverflow.com/questions/10705587/how-to-animate-one-image-over-the-unusual-curve-path-in-my-ipad-application bezierPath arcingPath moveToPoint startPoint arcingPath addCurveToPoint endPoint controlPoint1 controlPoint1 controlPoint2 controlPoint2 CGPathRef animationPath arcingPath CGPath The path you animate along Zooming up To achieve the zoom effect.. arcingPath moveToPoint startPoint arcingPath addCurveToPoint endPoint controlPoint1 controlPoint1 controlPoint2 controlPoint2 CGPathRef animationPath arcingPath CGPath The path you animate along Zooming up To achieve the zoom effect you can apply..
Draw Graph curves with UIBezierPath http://stackoverflow.com/questions/13719143/draw-graph-curves-with-uibezierpath aware that UIBezierPath has following two functions to support this feature. Cubic curve addCurveToPoint controlPoint1 controlPoint2 Quadratic curve addQuadCurveToPoint controlPoint But problem is that I don't have control points. All i have is two end..
Find a point, a given distance, along a simple cubic bezier curve. (On an iPhone!) http://stackoverflow.com/questions/4058979/find-a-point-a-given-distance-along-a-simple-cubic-bezier-curve-on-an-iphone a completely normal four point bezier curve two points and two control points created using curveToPoint controlPoint1 controlPoint2 in your cocoa application How do you find points and the tangents along the curve Later for a complete and simplified solution.. UIBezierPath alloc init autorelease bezierPath moveToPoint p1 bezierPath addCurveToPoint p4 controlPoint1 p2 controlPoint2 p3 bezierPath stroke UIColor brownColor setStroke for CGFloat t 0.0 t 1.00001 t 0.05 CGPoint point CGPointMake bezierInterpolation..
What's the correct code to save a CGLayer as a PNG file? http://stackoverflow.com/questions/4064470/whats-the-correct-code-to-save-a-cglayer-as-a-png-file longPath.lineJoinStyle kCGLineJoinRound longPath moveToPoint p longPath addCurveToPoint q controlPoint1 r controlPoint2 s longPath addCurveToPoint a controlPoint1 b controlPoint2 c longPath addCurveToPoint m controlPoint1 n controlPoint2 o.. moveToPoint p longPath addCurveToPoint q controlPoint1 r controlPoint2 s longPath addCurveToPoint a controlPoint1 b controlPoint2 c longPath addCurveToPoint m controlPoint1 n controlPoint2 o longPath closePath longPath stroke UIGraphicsPopContext so.. controlPoint2 s longPath addCurveToPoint a controlPoint1 b controlPoint2 c longPath addCurveToPoint m controlPoint1 n controlPoint2 o longPath closePath longPath stroke UIGraphicsPopContext so now you have a nice CGLayer. how to save it to a file you can..
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 UIBezierPath alloc init autorelease bezierPath moveToPoint p1 bezierPath addCurveToPoint p4 controlPoint1 p2 controlPoint2 p3 bezierPath stroke UIColor brownColor setStroke now mark in points along the bezier for CGFloat t 0.0 t 1.00001 t 0.05..
Drawing bezier curves with my finger in iOS? http://stackoverflow.com/questions/4672646/drawing-bezier-curves-with-my-finger-in-ios improve this question If you want to stay in objective c you can use UIBezierPath's addCurveToPoint controlPoint1 controlPoint2 method. You can also use a similarly named function with CGPaths. When using bezier curves you need 4 points starting point.. UIBezierPath path UIBezierPath bezierPath path moveToPoint startPt path addCurveToPoint endPt controlPoint1 cPt1 controlPoint2 cPt2 void _calcDefaultControls if ABS startPt.x endPt.x ABS startPt.y endPt.y cPt1 CGPoint startPt.x endPt.x 2 startPt.y..
How to draw wavy line on iOS device http://stackoverflow.com/questions/5693297/how-to-draw-wavy-line-on-ios-device
Why is UIBezierPath faster than Core Graphics path? http://stackoverflow.com/questions/6327817/why-is-uibezierpath-faster-than-core-graphics-path 50 x2 cgBaseline uipath addCurveToPoint CGPointMake x2 uiBaseline controlPoint1 CGPointMake x1 uiBaseline 50 controlPoint2 CGPointMake x2 uiBaseline 50 UIColor blackColor setStroke CGContextAddPath ctx cgpath Stroke each path. self strokeContext.. 50 x2 cgBaseline uipath addCurveToPoint CGPointMake x2 uiBaseline controlPoint1 CGPointMake x1 uiBaseline 50 controlPoint2 CGPointMake x2 uiBaseline 50 UIColor blackColor setStroke CGContextAddPath ctx cgpath Stroke each path CGContextSaveGState..
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 controlPoint1 ccpAdd ccp curve objectAtIndex 2 floatValue curve objectAtIndex 3 floatValue positionOffset CGPoint controlPoint2 ccpAdd ccp curve objectAtIndex 4 floatValue curve objectAtIndex 5 floatValue positionOffset CGPoint endPoint ccpAdd ccp.. 7 floatValue positionOffset ccBezierConfig bezier bezier.controlPoint_1 controlPoint1 bezier.controlPoint_2 controlPoint2 bezier.endPosition endPoint float bezierAngle ccpAngleSigned ccpSub startPoint positionOffset ccpSub endPoint positionOffset..
Drawing Smooth Curves - Methods Needed http://stackoverflow.com/questions/8702696/drawing-smooth-curves-methods-needed objectAtIndex pointsOrdered count 3 CGPoint self bezierPath addCurveToPoint CGPoint controlPoint1 control1 CGPoint controlPoint2 control2 CGPoint BOOL isComplete return self points count 1 UIBezierPath bezierPath if bezierPath bezierPath UIBezierPath..
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