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GeezerVison is showing github.com — MacRubySamples/Scripts/circle.rb at master · MacRuby/MacRubySamples Expand file tree/ Copy pathcircle.rbMore file actions 17 lines (14 loc) · 545 Bytes / Copy pathcircle.rbFile metadata and controls17 lines (14 loc) · 545 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 # Create a new PDF file and draw a red circle in it, using Core Graphics. framework 'Cocoa' url = NSURL.fileURLWithPath('circle.pdf') prect = Pointer.new(CGRect.type) prect[0] = [[0, 0], [617, 792]] pdf = CGPDFContextCreateWithURL(url, prect, nil) CGPDFContextBeginPage(pdf, nil) CGContextSetRGBFillColor(pdf, 1.0, 0.0, 0.0, 1.0) CGContextAddArc(pdf, 300, 300, 100, 0, 2 * Math::PI, 1) CGContextFillPath(pdf) CGPDFContextEndPage(pdf) CGContextFlush(pdf) # CGContextRef is a resourceful object, so it must be released manually. CFRelease(pdf) |
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