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.
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Bool A Boolean value indicating whether the receiver uses antialiasing.
CGText Encoding Sets the font and font size in a graphics context. Begins a transparency layer whose contents are bounded by the specified rectangle. Enables shadowing with color a graphics context. CGRect Returns the bounding box of xgcontext clipping path. Instantiates and returns a new graphics context using the supplied NSBitmap Image Rep referdnce as the context destination.
Paints cgcontextt area of the ellipse that fits inside the provided rectangle, using the fill color in the current graphics state.
Setting Path Drawing Options. Drawing the Current Graphics Path. Creates a bitmap graphics context with the specified callback function. CGPoint Returns the location at which text is drawn. Maps a mask into the specified rectangle and intersects it with the current clipping area of the graphics context. Pops a graphics context from the per-thread stack, makes it current, refeence sends the context a restore Graphics State message.
Topics Creating Bitmap Graphics Contexts. Managing the Color Rendering Intent. Flushing Graphics to the Context.
CGContext Reference | ios Tutorial
Begins a new page in a PDF graphics context. Returns the color space of a bitmap context. Creates a new graphics context from the specified Core Graphics context and the initial flipped state. Int Returns the width in pixels of a bitmap context.
Int Returns the bits per component of a bitmap context.
I would recommend testing refetence path set the stroke colour and the stroke pathand trying the image without the mask to work out where the problem is. Int Returns the bytes per row of a bitmap context. Declaration func clip to rect: CGAffine Transform Returns an cbcontext transform that maps user space coordinates to device space coordinates.
CGRect Returns the smallest rectangle that contains the current path. Displays a character array at the current text position, a point specified by the current text matrix. 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. Sets a destination to jump to when a point in the current page of a PDF graphics context is clicked.
CGFloat Enables shadowing in a graphics context. CGData Consumer, regerence Box: Sets the clipping path to the intersection of the current clipping path with the region defined by an array of rectangles. Bool Adds an arc of a circle to the current path, specified with a radius and angles. UInt32 Creates a bitmap graphics context.
Any idea how to do it? Working with the Current Transformation Matrix. CGFloat Changes the scale of the user coordinate system in a context. Int Displays a character array at the current text position, a point specified ccgontext the current text matrix.