2014/10/15 下午 10:05:04

iphone Programming Glossary: cgpath

How can I check if a user tapped near a CGPath?

http://stackoverflow.com/questions/1143704/how-can-i-check-if-a-user-tapped-near-a-cgpath

can I check if a user tapped near a CGPath Scenario I have a set of CGPath s. They are mostly just lines i.e. not closed shapes . They are drawn on the screen in.. can I check if a user tapped near a CGPath Scenario I have a set of CGPath s. They are mostly just lines i.e. not closed shapes . They are drawn on the screen in a UIView 's draw method. How can.. How can I check if the user tapped near one of the paths Here's what I had working UIGraphincsBeginImageContext CGPathGetBoundingBox path CGContextRef g UIGraphicsGetCurrentContext CGContextAddPath g path CGContextSetLineWidth g 15 CGContextReplacePathWithStrokedPath..

Drag UIView around Shape Comprised of CGMutablePaths

http://stackoverflow.com/questions/13664615/drag-uiview-around-shape-comprised-of-cgmutablepaths

share improve this question This is an interesting problem. We want to drag an object but constrain it to lie on a CGPath . You said you have 𦡞 simple oval shape but that's boring. Let's do it with a figure 8. It'll look like this when we're.. spaced points along a Bezier curve is not trivial but there is a way to get Core Graphics to do it for us. We can use CGPathCreateCopyByDashingPath with a short dash pattern. This creates a new path with many short segments. We'll take the endpoints.. We'll take the endpoints of each segment as our array of points. That means we need to iterate over the elements of a CGPath . The only way to iterate over the elements of a CGPath is with the CGPathApply function which takes a callback. It would..

Getting a list of points from a UIBezierPath

http://stackoverflow.com/questions/3051760/getting-a-list-of-points-from-a-uibezierpath

c iphone share improve this question You might try this UIBezierPath yourPath Assume this has some points in it CGPath yourCGPath yourPath.CGPath NSMutableArray bezierPoints NSMutableArray array CGPathApply yourCGPath bezierPoints MyCGPathApplierFunc.. share improve this question You might try this UIBezierPath yourPath Assume this has some points in it CGPath yourCGPath yourPath.CGPath NSMutableArray bezierPoints NSMutableArray array CGPathApply yourCGPath bezierPoints MyCGPathApplierFunc.. this question You might try this UIBezierPath yourPath Assume this has some points in it CGPath yourCGPath yourPath.CGPath NSMutableArray bezierPoints NSMutableArray array CGPathApply yourCGPath bezierPoints MyCGPathApplierFunc The path applier..

Just two rounded corners? [duplicate]

http://stackoverflow.com/questions/4845211/just-two-rounded-corners

How to create custom easing function with Core Animation?

http://stackoverflow.com/questions/5161465/how-to-create-custom-easing-function-with-core-animation

to create custom easing function with Core Animation I am animating a CALayer along a CGPath QuadCurve quite nicely in iOS. But I'd like to use a more interesting easing function than the few provided by Apple EaseIn.. using the current bezier based CAMediaTimingFunction. Lets make that line any arbitrary curve movement specified with CGPath. It should still move along that curve but it should accelerate and decelerate the same way as in the line example. In theory..

Why is UIBezierPath faster than Core Graphics path?

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

I thought would be a Core Graphics equivalent. The drawRect method below creates two paths one UIBezierPath and one CGPath. The paths are identical except for their locations but stroking the CGPath takes roughly twice as long as stroking the.. creates two paths one UIBezierPath and one CGPath. The paths are identical except for their locations but stroking the CGPath takes roughly twice as long as stroking the UIBezierPath. void drawRect CGRect rect CGContextRef ctx UIGraphicsGetCurrentContext.. rect CGContextRef ctx UIGraphicsGetCurrentContext Create the two paths cgpath and uipath. CGMutablePathRef cgpath CGPathCreateMutable CGPathMoveToPoint cgpath NULL 0 100 UIBezierPath uipath UIBezierPath alloc init uipath moveToPoint CGPointMake..

Drawing Smooth Curves - Methods Needed

http://stackoverflow.com/questions/8702696/drawing-smooth-curves-methods-needed

else bezierPath addLineToPoint PVPoint self pointsOrdered objectAtIndex p CGPoint bezierPath retain return bezierPath CGPathRef CGPath return self bezierPath CGPath iphone objective c ios ipad bezier curve share improve this question I just.. addLineToPoint PVPoint self pointsOrdered objectAtIndex p CGPoint bezierPath retain return bezierPath CGPathRef CGPath return self bezierPath CGPath iphone objective c ios ipad bezier curve share improve this question I just implemented.. pointsOrdered objectAtIndex p CGPoint bezierPath retain return bezierPath CGPathRef CGPath return self bezierPath CGPath iphone objective c ios ipad bezier curve share improve this question I just implemented something similar in a project..

Core Text: Render to an Odd Shape

http://stackoverflow.com/questions/3813318/core-text-render-to-an-odd-shape

CFRelease frame Any help or ideas would be greatly appreciated. I'm stumped. iphone ipad core graphics core text cgpath share improve this question http lists.apple.com archives quartz dev 2010 Mar msg00049.html The problem was documentation..

Why is UIBezierPath faster than Core Graphics path?

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

stroking the UIBezierPath. void drawRect CGRect rect CGContextRef ctx UIGraphicsGetCurrentContext Create the two paths cgpath and uipath. CGMutablePathRef cgpath CGPathCreateMutable CGPathMoveToPoint cgpath NULL 0 100 UIBezierPath uipath UIBezierPath.. CGRect rect CGContextRef ctx UIGraphicsGetCurrentContext Create the two paths cgpath and uipath. CGMutablePathRef cgpath CGPathCreateMutable CGPathMoveToPoint cgpath NULL 0 100 UIBezierPath uipath UIBezierPath alloc init uipath moveToPoint CGPointMake.. Create the two paths cgpath and uipath. CGMutablePathRef cgpath CGPathCreateMutable CGPathMoveToPoint cgpath NULL 0 100 UIBezierPath uipath UIBezierPath alloc init uipath moveToPoint CGPointMake 0 200 Add 200 curve segments to each..

Draw glow around inside edge of multiple CGPaths

http://stackoverflow.com/questions/8480401/draw-glow-around-inside-edge-of-multiple-cgpaths

CGPathRef which represents only the outer border as shown by the right image Thanks for any help iphone ios quartz 2d cgpath share improve this question What you are asking for is the union of bezier paths. Apple doesn't ship any APIs for computing..