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2014/10/15 ¤U¤È 10:03:51

iphone Programming Glossary: approximate

How to implement a box or gaussian blur on iPhone

http://stackoverflow.com/questions/1140117/how-to-implement-a-box-or-gaussian-blur-on-iphone

them with neighbors or is there a higher level way that I could do this PS I am aware that multiple box blurs can approximate a gaussian blur. iphone image processing blur share improve this question I found a really fast pretty crappy way for..

How do I get the next and earlier date of the current date in iPhone sdk

http://stackoverflow.com/questions/1172698/how-do-i-get-the-next-and-earlier-date-of-the-current-date-in-iphone-sdk

for a date 1 second in the future. If you want a day earlier you can add a days worth of seconds. Of course that is approximate unless you deal with all the gregorian calendar issues but if you just want a quick approximation NSDate earlierDate date..

Boundry detect paper sheet opencv

http://stackoverflow.com/questions/13493035/boundry-detect-paper-sheet-opencv

contours CV_RETR_LIST CV_CHAIN_APPROX_SIMPLE Test contours vector cv Point approx for size_t i 0 i contours.size i approximate contour with accuracy proportional to the contour perimeter approxPolyDP Mat contours i approx arcLength Mat contours i..

iPhone fluid simulation

http://stackoverflow.com/questions/1784745/iphone-fluid-simulation

perform 2 D fluid modeling simulations on limited hardware using lattice gas automata . With lattice gas automata you approximate a fluid as a fine hexagonal grid where particles can travel in one of six directions and obey specific collision rules...

Is there a way to programmatically scroll to a PDF page within a UIWebView?

http://stackoverflow.com/questions/1927841/is-there-a-way-to-programmatically-scroll-to-a-pdf-page-within-a-uiwebview

PDF data after the web view delegate method webViewDidFinishLoad gets called. This information is used to calculate an approximate per page offset that gets fed to the web view via JavaScript. PDFViewerViewController.h #import UIKit UIKit.h #import WebViewerViewController.h..

How do i rotate a CALayer around a diagonal line?

http://stackoverflow.com/questions/2394807/how-do-i-rotate-a-calayer-around-a-diagonal-line

math correctly 0.5 0.5 0 0.5 0.5 0 0 0 1 Update ok CA doen't really likes to use degenerate transforms but you can approximate it this way CGAffineTransform t1 CGAffineTransformMakeRotation M_PI 4.0f CGAffineTransform t2 CGAffineTransformScale t1..

Levenshtein Distance Algorithm better than O(n*m)?

http://stackoverflow.com/questions/4057513/levenshtein-distance-algorithm-better-than-onm

you only need to keep the last two rows of the matrix in memory so that will be order n . If you can afford to approximate there are poly logarithmic approximations. For the O n d^2 algorithm look for Ukkonen's optimization or its enhancement..

Measure network traffic programmatically on iPhone

http://stackoverflow.com/questions/4313358/measure-network-traffic-programmatically-on-iphone

traffic for the entire phone . Any ideas iphone objective c networking share improve this question I've found one approximate solution getifaddrs can be used to get statistics on network usage. One advantage is that it can get separate statistics..

Looking for experiences on the Apple MFi program registration process [closed]

http://stackoverflow.com/questions/5734071/looking-for-experiences-on-the-apple-mfi-program-registration-process

idea of something when you apply to join the program. Have a specific product in mind with a known target market and approximate pricing. In short have all the design legwork done as if you were going to hire a contractor to design this and have a coherent..

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

for xCode by Valentine Konov valentine @konov.su 2013 @return a array of objects that represent bezier curves which approximate the circular arc centered at the origin. @param startAngle to endAngle radians with the specified radius. NSArray createArcWithRadius..

How to keep iphone ios xmpp connection alive while in the background?

http://stackoverflow.com/questions/8261135/how-to-keep-iphone-ios-xmpp-connection-alive-while-in-the-background

other keep alive stuff here. iphone ios background connection xmpp share improve this question 10 minutes is the approximate time iOS allows you to stay connected. You can also look at app beginBackgroundTaskWithExpirationHandler which will allow..