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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Creates a new graphics context from the specified Core Graphics context and the initial flipped state. CGAffine Transform Returns the current text matrix.
clip(to:mask:) – CGContext | Apple Developer Documentation
Int Displays an array of glyphs at the current text position. Assuming that you mean that you want to draw the image ‘inside’ your figure, the easiest way would be to cgcontsxt a cgpath of your figure, make sure the path is closed, and then CGContextClipToPath context, path. CGPoint Begins a new subpath at the specified point. Working with the Current Transformation Matrix.
Returns the alpha information associated reffrence the context, which indicates how a bitmap context handles the alpha component. Setting Fill, Stroke, and Shadow Colors. CGPoint Draws the contents of a layer object at the specified point. UInt32 Creates a bitmap graphics context. CGColor Space, bitmap Info: Int Returns the bits per component reerence a bitmap context.
Any idea how to do it?
The attributes used to create this instance. I would recommend testing your path set ctcontext stroke colour and the stroke pathand trying the image without the mask to work out where the problem is. Post as a guest Name. CGGradient Drawing Options Paints a gradient fill that varies along the area defined by the provided starting and ending circles.
NSPoint The amount cgclntext offset the pattern color when filling the receiver. CGData Consumer, media Box: Flushing Graphics to the Context. Examining the Current Graphics Path.
Managing a Graphics Context. Working with Transparency Layers. Getting Information About a Context.
Rules for determining which regions are interior to a path, used by the fill Path using: CGRect Sets the clipping path to the intersection of the current clipping path with the area defined by the specified rectangle. If the value of the source sample in mask is Sthen the corresponding point in the current clipping area is multiplied by an alpha of S.
Int Displays a character reerence at the current text position, a point specified by the current text matrix. If the value of a source sample in the image mask cgcongext Sthen the corresponding point in the current clipping area is multiplied by cgcontexh alpha value of 1—S. Returns a pointer to the image data associated with a bitmap context. What you need is to clip the context with the figure’s path and then draw your image.
CGImage Alpha Info Returns the alpha information associated with the context, which indicates how a bitmap context handles the alpha component. Bool Adds an arc of a circle to the current path, specified with a radius and angles. If the mask parameter is an image mask, then Core Graphics clips in a manner identical to the behavior seen with the draw in: Displays a character array at the current text position, cgcontsxt point specified by the current text matrix.
CGRect Sets the clipping path to the intersection of the current clipping path with the area defined by the specified rectangle. CGFloat Changes the scale of the user coordinate system in a context.
Paints a gradient fill that varies along the line defined by the provided starting and ending points. These constants are dictionary keys used refference init attributes: First I need stretch image to fit my figure. An immutable graphics rwference CGRect Strokes an ellipse that fits inside the specified rectangle.
Sets the clipping path to the intersection of the current clipping path with the area defined by the specified rectangle. Constructing a Current Graphics Path. A mutable graphics path: Int, bytes Per Row: I think a little more detail is required.
Bool Instantiates and returns a new graphics context from the given graphics port. Begins a transparency layer.
Gordon Dove 2, cgconntext 13 NSWindow Creates and returns a new graphics context for drawing into a window. Constants that specify how Cocoa should handle colors that are not located within the destination color space of a graphics context. Begins a new page in a PDF graphics context.
Sign up or log in Sign up using Google. An image or an image mask.