Personal Growth

CGCONTEXT REFERENCE PDF

clip(to:mask:) Maps a mask into the specified rectangle and intersects it with . The angle, in radians, by which to rotate the coordinate space of the specified. Declaration. func UIGraphicsGetCurrentContext() -> CGContext? func UIGraphicsPushContext(CGContext). Makes the specified graphics context the current.

Author: Yozshuzshura Teshakar
Country: Iraq
Language: English (Spanish)
Genre: Music
Published (Last): 23 February 2004
Pages: 399
PDF File Size: 18.7 Mb
ePub File Size: 13.68 Mb
ISBN: 419-1-11362-871-8
Downloads: 42309
Price: Free* [*Free Regsitration Required]
Uploader: Tolkree

Int Returns the bits per pixel of a bitmap context. Assuming that you mean that you want to draw the image ‘inside’ your figure, the easiest way would be to create a cgpath of your figure, make sure the path is closed, and then CGContextClipToPath context, path. Int Displays an array of glyphs at the current cgcontwxt position.

Bool Indicates whether the current path contains any subpaths. Topics Creating a Graphics Context. Quartz 2D Programming Guide. Graphics contexts are maintained on a stack. Paints the areas contained within the provided rectangles, using the fill color in the current graphics state. CGFloat Paints a rectangular path, using the specified line width.

Bool Draws an image in the specified area. If the value of a source sample in the image mask is Sthen the corresponding point in the current clipping area is multiplied by an alpha value of 1—S.

Int Displays a character array at the current text position, a point specified by the current text matrix. UInt32 Creates a bitmap graphics context. CGRect Strokes an ellipse that fits inside the specified rectangle. Int Returns the bits per component of a bitmap context. An immutable graphics path: Sign up using Facebook. See my code, which I added to my question.

  GNU GPROF THE GNU PROFILER PDF

Managing the Graphics State. Paints a gradient fill that varies along the area defined by the provided starting and ending circles.

Post as a guest Name. The NSGraphics Context class is an abstract superclass for destination-specific graphics contexts. Instance Method clip to: Int Displays an array of glyphs at a position you specify. CGFloat Adds an arc of a ccontext to the current path, specified with a radius and two tangent lines.

CGContext Reference

CGAffine Transform Returns an affine transform that maps user space coordinates to device space coordinates. Rules for determining which regions are interior to a path, used by the fill Path using: Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Associates custom metadata with the PDF document. Begins a transparency layer. CGImage Alpha Info Returns the alpha information associated with the context, which indicates how a bitmap context handles the alpha component.

Managing the Current Context. Examining the Current Graphics Path. Bool A Boolean value indicating whether the drawing destination is the screen.

rotate(by:) – CGContext | Apple Developer Documentation

Returns the color space of a bitmap context. Maps a mask into the specified rectangle and intersects it with the current clipping area of the graphics context. You push a graphics context onto the stack by sending it a save Graphics State message, and pop it off the stack by ccgcontext it a restore Graphics State message. Working with the Current Transformation Matrix.

  ENFERMEDADES ERITEMATODESCAMATIVAS PDF

By sending restore Graphics State to a graphics context object you remove it from the stack, and the next graphics context on the stack becomes the current graphics context. Saving and Restoring Graphics State.

Email Required, but never shown. Unsafe Mutable Raw Pointer The low-level, platform-specific graphics context cgcontfxt by the graphic port. Radek Wilczak 2 CGGradient Drawing Options Paints a gradient fill that varies along the area defined by the provided starting and ending circles.

CGContext – Core Graphics | Apple Developer Documentation

Have fgcontext look at this answer which explains how to do the first part How do I add a gradient to the text of a UILabel, but not the background? Creating Bitmap Graphics Contexts. Sign up using Email and Password. Sign up or log in Sign up using Google. Paints a gradient fill that varies along the line defined by the provided starting and ending points.

Maps a mask into the specified rectangle and intersects it with the current clipping area of the graphics context. Bool Instantiates and returns a new graphics context from the given graphics port. CGRect Returns the bounding box of a clipping path. CGAffine Transform Returns the current text matrix.