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2014/10/15 ¤U¤È 10:07:11
iphone Programming Glossary: dividingOpenGL ES 2.0 texture distortion on large geometry GL_REPEAT http://stackoverflow.com/questions/11370074/opengl-es-2-0-texture-distortion-on-large-geometry-gl-repeat of a vertex's X Y Z location are in the range of 65536 to 65536 floating point I realized this was large so I tried dividing the vertex positions by 1024 to shrink the geometry and hopefully get more accurate floating point precision but this didn't..
wrong position of tile map when i convert to retina display http://stackoverflow.com/questions/12837104/wrong-position-of-tile-map-when-i-convert-to-retina-display cocos2d share improve this question Me also observed same problem with cocos2D tile map and finally resolved by dividing CC_CONTENT_SCALE_FACTOR. In retina mode it gives 2.0. CCTMXObjectGroup objects tileMap objectGroupNamed NN_TILE_MAP_OBJECT_LAYER..
CGAffineTransformInvert: singular matrix in UIImagePickerController with showsCameraControls = NO http://stackoverflow.com/questions/13708496/cgaffinetransforminvert-singular-matrix-in-uiimagepickercontroller-with-showsca it is considered a mathematical violation to perform operations on matrices with a determinant of zero similar to dividing by zero . Such a matrix is not invertible or 'singular' http en.wikipedia.org wiki Rotation_matrix http en.wikipedia.org..
time remaining until charge is complete,iOS http://stackoverflow.com/questions/13899308/time-remaining-until-charge-is-complete-ios is similar to the approach taken when estimating download time calculating an average speed of download charging and dividing the remaining amount of data or charge by that speed UIDevice currentDevice .batteryMonitoringEnabled YES float prevBatteryLev..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone Essentially what we're doing is making a second pointer that divides the byteData's units differently instead of dividing each unit as 1 byte we will divide each unit as 3 bytes 1 pixel . pixelData RGBPixel pixelByteData Now you can access pixels..
http://stackoverflow.com/questions/16033481/i-am-using-drawlineargradient-function-to-draw-gradient-line-but-the-2-colors am using &ldquo DrawLinearGradient&rdquo function to draw gradient line. But the 2 colors that i am using are not dividing equally in the line I am using DrawLinearGradient function to draw gradient line. But the 2 colors that i am using are.. in the line I am using DrawLinearGradient function to draw gradient line. But the 2 colors that i am using are not dividing equally in the line. CGColorSpace colorSpace CGColorSpace.CreateDeviceRGB CGColor colors UIColor.Red.CGColor UIColor.Green.CGColor.. of items as the colors array. In your code however you are passing two colors but four locations. Since you are saying dividing equally in the line you should probably repeat both colors twice. CGColor colors UIColor.Red.CGColor UIColor.Red.CGColor..
http://stackoverflow.com/questions/262156/uiimage-rounded-corners targetSize NO use the longeset edge as a guide. if the image is wider than tall we'll figure out the scale factor by dividing it by the intended width. Otherwise we'll use the height. float widthFactor targetSize.width width float heightFactor targetSize.height..
Create a mask from difference between two images (iPhone) http://stackoverflow.com/questions/3901404/create-a-mask-from-difference-between-two-images-iphone create areas of a couple of pixels and extracting the general color of the area maybe by adding up the RGBA values and dividing by the number of pixels . How could I do this and then translate it to a CGMask I know this is a complex question so any..
How to find UILabel's number of Lines http://stackoverflow.com/questions/4172615/how-to-find-uilabels-number-of-lines a UILabel myLabel and you want to find out the height of the label with some tweaking you can get the # of lines by dividing the height with some appropriate number which depends on the font size . UILabel myLabel CGSize labelSize myLabel.text sizeWithFont..
how to calculate the age based on date http://stackoverflow.com/questions/4463893/how-to-calculate-the-age-based-on-date Many of these answers don't properly account for leap years and such best is to use Apple's methods instead of dividing by constants. NSDate birthday ... NSDate now NSDate date NSDateComponents ageComponents NSCalendar currentCalendar components..
Implementing steps/snapping UISlider http://stackoverflow.com/questions/6370342/implementing-steps-snapping-uislider id sender This determines which step the slider should be on. Here we're taking the current position of the slider and dividing by the `self.stepValue` to determine approximately which step we are on. Then we round to get to find which step we are..
CoreAudio AudioTimeStamp.mHostTime clock frequency? http://stackoverflow.com/questions/675626/coreaudio-audiotimestamp-mhosttime-clock-frequency to multiply than to divide double ns2HTimeFactor 1.0 hTime2nsFactor Now you can multiply by ns2HTimeFactor instead of dividing by hTime2nsFactor . Of course it is a waste of time to re calculate the factors each time you need them. Those factors are..
Using UIPinchGestureRecognizer to scale uiviews in single direction http://stackoverflow.com/questions/6759028/using-uipinchgesturerecognizer-to-scale-uiviews-in-single-direction delta is also equal along the two axis I decided to divide by the distance but there are other possibilities like dividing by the sum of the two deltaMoves or by the max of the deltaMoves etc . the adjusted delta is finally subtracted from the..
Creating a custom text-drawing view http://stackoverflow.com/questions/844829/creating-a-custom-text-drawing-view to implement my own movable cursor and when you move the cursor it needs to be able to turn a display line found by dividing touch.x by the line height into a text line an index in the array . Any ideas iphone objective c cocoa touch share improve..
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