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2014/10/15 ¤U¤È 10:10:30
iphone Programming Glossary: intensityhttp://stackoverflow.com/questions/1894351/what-is-dot3-lighting though so I'm not sure if this will be a net win as usual the advice is to try and see. Finally the diffuse lighting intensity in a point is proportional to the cosine of the angle between the surface normal and the direction of the light. For two.. b are referred to as unit vectors and the formula simplifies to a dot b cos theta this means that the diffuse lighting intensity is given by the dot product between the surface normal and the direction of the light. This means that all diffuse lighting..
How do you make the iPhone vibrate for arbitrary durations? http://stackoverflow.com/questions/265761/how-do-you-make-the-iphone-vibrate-for-arbitrary-durations kCFAllocatorDefault vibratecallback x start vibration _CTServerConnectionSetVibratorState x connection 3 intensity 0 0 0 stop vibration _CTServerConnectionSetVibratorState x connection 0 0 0 0 0 This code is from HapticKeyboard a downloadable..
How can you track motion using the iPhone's camera? http://stackoverflow.com/questions/3933716/how-can-you-track-motion-using-the-iphones-camera class that processes a scene and detects any kind of motion within it. It will give you back the centroid and intensity of the overall motion it detects as part of a simple callback block. Using this framework to do this should be a lot easier..
Iphone convert color image to 2bit image (black-white) http://stackoverflow.com/questions/4030430/iphone-convert-color-image-to-2bit-image-black-white getPixelData originalImage.CGImage size_t length originalImage.size.width originalImage.size.height 4 CGFloat intensity int bw 50 threshold const CGFloat THRESHOLD 0.5 for int index 0 index length index 4 intensity pixelBuffer index pixelBuffer.. 4 CGFloat intensity int bw 50 threshold const CGFloat THRESHOLD 0.5 for int index 0 index length index 4 intensity pixelBuffer index pixelBuffer index 1 pixelBuffer index 2 3. 255. if intensity THRESHOLD bw 255 else bw 0 pixelBuffer index.. for int index 0 index length index 4 intensity pixelBuffer index pixelBuffer index 1 pixelBuffer index 2 3. 255. if intensity THRESHOLD bw 255 else bw 0 pixelBuffer index bw pixelBuffer index 1 bw pixelBuffer index 2 bw CGColorSpaceRef colorSpace..
http://stackoverflow.com/questions/4728642/redlaser-sdk-alternatives is an open source software suite for reading bar codes from various sources such as video streams image files and raw intensity sensors. It supports many popular symbologies types of bar codes including EAN 13 UPC A UPC E EAN 8 Code 128 Code 39 Interleaved..
Tracking audio (level of intensity) - android/iphone http://stackoverflow.com/questions/8324463/tracking-audio-level-of-intensity-android-iphone audio level of intensity android iphone Is it possible to retrieve the characteristics of the audio output signal dedicated to headphones during..
Overlaying a UIImage with a color? http://stackoverflow.com/questions/845278/overlaying-a-uiimage-with-a-color
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