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2014/10/15 ¤U¤È 10:14:23

iphone Programming Glossary: sqrtf

How to get a rotated, zoomed and panned image from an UIImageView at its full resolution?

http://stackoverflow.com/questions/11104042/how-to-get-a-rotated-zoomed-and-panned-image-from-an-uiimageview-at-its-full-re

and that the frame of faceImageView is set to the enclosingView's bounds. UIImage captureView float imageScale sqrtf powf faceImageView.transform.a 2.f powf faceImageView.transform.c 2.f CGFloat widthScale faceImageView.bounds.size.width..

I am getting Expected identifier in Xcode

http://stackoverflow.com/questions/12453000/i-am-getting-expected-identifier-in-xcode

pySidea intValue int pyBside pySideb intValue int pyCside pySidec intValue if aSide length 0 NSString finalAnserc sqrtf powf pyAside 2 powf pyBside 2 sideCstring @ _anserSidec sideA sideB and sideC are the sides of a triangle using a text field... of a triangle using a text field. I don't get an error for any part except if aSide length 0 NSString finalAnserc sqrtf powf pyAside 2 powf pyBside 2 sideCstring @ _anserSidec where I get Expected identifier . Thanks for any help. iphone objective.. for any help. iphone objective c c xcode identifier share improve this question This line NSString finalAnserc sqrtf powf pyAside 2 powf pyBside 2 Seems to be wanting to create a string but doesn't do anything except some arithmetic inside..

Drawing app on iPad using OpenGL

http://stackoverflow.com/questions/4606680/drawing-app-on-ipad-using-opengl

currentStroke objectAtIndex i 2 CGPointValue .y Figure our how many dots you need count MAX ceilf sqrtf currentStroke objectAtIndex i 2 CGPointValue .x currentStroke objectAtIndex i CGPointValue .x currentStroke objectAtIndex..

How to draw a color wheel in objective-c

http://stackoverflow.com/questions/5108921/how-to-draw-a-color-wheel-in-objective-c

widthHeight int x int y float outH float outS int c widthHeight 2 float dx float x c c float dy float y c c float d sqrtf float dx dx dy dy outS d outH acosf float dx d M_PI 2.0f if dy 0 outH 1.0 outH UIImage createUIImageWithRGBAData CFDataRef..

Changing pen width according writing speed

http://stackoverflow.com/questions/6490057/changing-pen-width-according-writing-speed

malloc vertexMax 2 sizeof GLfloat Add points to the buffer so there are drawing points every X pixels count MAX ceilf sqrtf end.x start.x end.x start.x end.y start.y end.y start.y kBrushPixelStep 1 for i 0 i count i if vertexCount vertexMax vertexMax..

Undo drawing in Paint Application

http://stackoverflow.com/questions/6689600/undo-drawing-in-paint-application

malloc eraseMax 2 sizeof GLfloat Add points to the buffer so there are drawing points every X pixels count MAX ceilf sqrtf end.x start.x end.x start.x end.y start.y end.y start.y kBrushPixelStep 1 for i 0 i count i if vertexCount eraseMax eraseMax..

Save OpenGL Drawn item as a Image

http://stackoverflow.com/questions/9660723/save-opengl-drawn-item-as-a-image

malloc vertexMax 2 sizeof GLfloat Add points to the buffer so there are drawing points every X pixels count MAX ceilf sqrtf end.x start.x end.x start.x end.y start.y end.y start.y kBrushPixelStep 1 for i 0 i count i if vertexCount vertexMax vertexMax..

Record the drawing as a m4v video file - OpenGL

http://stackoverflow.com/questions/9661259/record-the-drawing-as-a-m4v-video-file-opengl

malloc vertexMax 2 sizeof GLfloat Add points to the buffer so there are drawing points every X pixels count MAX ceilf sqrtf end.x start.x end.x start.x end.y start.y end.y start.y kBrushPixelStep 1 for i 0 i count i if vertexCount vertexMax vertexMax..