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2014/10/15 ¤U¤È 10:10:32
iphone Programming Glossary: intersecthttp://stackoverflow.com/questions/1021801/cgpathref-intersection intersection Is there a way to find out whether two CGPathRefs are intersected or not. In my case all the CGPaths are having closePath... intersection Is there a way to find out whether two CGPathRefs are intersected or not. In my case all the CGPaths are having closePath. For example I am having two paths. One path is the rectangle.. some angle and the other path is curved path. Two paths origin will be changing frequently. At some point they may intersect. I want to know when they are intersected. Please let me know if you have any solution. Thanks in advance iphone cocoa..
How to find whether two objects intersect each other? http://stackoverflow.com/questions/11642947/how-to-find-whether-two-objects-intersect-each-other to find whether two objects intersect each other I used the following code to create and animate the object For creating two imageview UIImageView bbl1Obj UIImageView.. 3 bbl2Obj setFrame CGRectMake 34 77 70 70 UIImageView commitAnimations I want to display an image when the two image intersect each other. but i don't know how to find whether the images intersect other or not while animating. Can anyone please tell.. I want to display an image when the two image intersect each other. but i don't know how to find whether the images intersect other or not while animating. Can anyone please tell me how to find whether two images intersect each other or not while..
How do I add a gradient to the text of a UILabel, but not the background? http://stackoverflow.com/questions/1266179/how-do-i-add-a-gradient-to-the-text-of-a-uilabel-but-not-the-background vertically the iPhone inverts the normal Quartz coordinate system on for the Y axis sets the text drawing mode to intersect the drawn text with the clipping path clips the area to draw to the text and then draws a gradient. The gradient will only..
Objective-C check if subviews of rotated UIViews intersect? http://stackoverflow.com/questions/15710853/objective-c-check-if-subviews-of-rotated-uiviews-intersect C check if subviews of rotated UIViews intersect I don't know where to start with this one. Obviously CGRectIntersectsRect will not work in this case and you'll see why... CGAffineRotation. The resulting frame looks something like this I need to prevent users from making these UIImageViews intersect but I have no idea how to check intersection between the two UIImageViews since not only do their frames not apply to the.. something like this I need to prevent users from making these UIImageViews intersect but I have no idea how to check intersection between the two UIImageViews since not only do their frames not apply to the parent UIView but also they are rotated..
Indoor navigation hardware/software requirements for iOS http://stackoverflow.com/questions/15732181/indoor-navigation-hardware-software-requirements-for-ios if your uni already has deployed access points APs . Trilateration converts signal strength to distance and then intersect circles almost exactly like GPS . In general this has poorish accuracy and you need to know the exact position of APs for..
Drawing in CATiledLayer with CoreGraphics CGContextDrawImage http://stackoverflow.com/questions/4067512/drawing-in-catiledlayer-with-coregraphics-cgcontextdrawimage tileSize tiledLayer.tileSize tileSize.width scale tileSize.height scale calculate the rows and columns of tiles that intersect the rect we have been asked to draw int firstCol floorf CGRectGetMinX rect tileSize.width int lastCol floorf CGRectGetMaxX.. drawRect gives you the whole bounds. Knowing this you can remove the row and column iteration as well as the CGRect intersection for the edge tiles and just draw to the rect once you've translated the context. Here's what I've ended up with void..
Skybox OpenGL ES iPhone and iPad http://stackoverflow.com/questions/4110893/skybox-opengl-es-iphone-and-ipad style of the scene according to member variables and to ensure that the cube geometry I defined doesn't visibly intersect the near clip plane how to specify vertex locations and texture coordinates to OpenGL how to specify the triangles OpenGL..
problem with collision of two images http://stackoverflow.com/questions/5926355/problem-with-collision-of-two-images to get the physics to look realistic. THe problem became that ball A and B overlap so you back them up then they now intersect other balls etc etc. This link is a good starting point but there are quite a few examples of code out there that almost..
Drawing Smooth Curves - Methods Needed http://stackoverflow.com/questions/8702696/drawing-smooth-curves-methods-needed a set of points in an iOS drawing app WHILE MOVING I have tried UIBezierpaths but all I get are jagged ends where they intersect when I just shift the points 1 2 3 4 2 3 4 5. I have heard of spline curves and all the other types. I am quite new to iPhone.. This was my code for the UIBezierPath which left edges at intersection UPDATED TO AN ANSWER BELOW #define VALUE _INDEX_ NSValue valueWithCGPoint points _INDEX_ #define POINT _INDEX_ NSValue..
http://stackoverflow.com/questions/8859285/uibezierpath-subtract-path clipping path. You have to use a trick though. When you add a path to the clipping path the new clipping path is the intersection of the old clipping path and the added path. So if you just add smallMaskPath to the clipping path you will end up filling.. end up filling only the region inside smallMaskPath which is the opposite of what you want. What you need to do is intersect the existing clipping path with the inverse of smallMaskPath . Fortunately you can do that pretty easily using the even..
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