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POCGContextSetLineWidth(context, 1) - the width is almost alwayas at least 2 pixels instead 1
 

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  1. POCGContextSetLineWidth(context, 1) - the width is almost alwayas at least 2 pixels instead 1
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    <p>With <code>CGContextSetLineWidth(context, 1)</code> the width is almost alwayas at least 2 pixels instead 1</p> <p>QQCandleStickLayer.m</p> <pre><code>-(id)init { self = [super init]; if(self != nil) { self.delegate = self; self.opaque = NO; } return self; } - (void)drawLayer:(CALayer*)layer inContext:(CGContextRef)context{ CGContextSetLineWidth(context, 1.0f); CGContextSetAllowsAntialiasing(context, false); CGContextSetShouldAntialias(context, false); CGContextSetInterpolationQuality(context,kCGInterpolationNone); CGContextSetShadowWithColor(context, CGSizeMake( 0.0, 0.0 ), 0, NULL); CGContextMoveToPoint(context, self.bounds.origin.x+30.5f, self.bounds.origin.y+self.bounds.size.height-indent); CGContextAddLineToPoint(context, self.bounds.origin.x+30.5f, self.bounds.origin.y+self.bounds.size.height-(self.bounds.size.height-lastY)); CGContextClosePath(context); CGContextSetRGBStrokeColor(context, 119.0f/255, 119.0f/255, 119.0f/255, 1.0); CGContextStrokePath(context); } </code></pre> <p>QQDefluviumLayer.m</p> <pre><code>- (void)drawLayer:(CALayer*)layer inContext:(CGContextRef)context{ UIImage *myDefluvium = [UIImage imageNamed:@"delfluviumNewRotatedSmall.png"]; CGLayerRef layerCircle = CGLayerCreateWithContext(context, myDefluvium.size,NULL); if (layerCircle) { CGContextRef layerContext = CGLayerGetContext(layerCircle); CGContextDrawImage(layerContext, (CGRect){ CGPointZero, myDefluvium.size }, myDefluvium.CGImage); CGContextDrawLayerInRect(context, CGRectMake(layer.bounds.origin.x,layer.bounds.origin.y, layer.bounds.size.width,layer.bounds.size.height), layerCircle); CFRelease(layerCircle); } } </code></pre> <p>QuickQuoteViewController.m</p> <pre><code>defluviumLayer=[[QQDefluviumLayer alloc] init]; [defluviumLayer setBounds:CGRectMake(0, 0, 61, 343)]; [defluviumLayer setPosition:CGPointMake(277,246)]; [self.view.layer addSublayer:defluviumLayer]; [defluviumLayer update]; candleStickLayer=[[QQCandleStickLayer alloc] init]; [candleStickLayer setBounds:CGRectMake(0,0, defluviumLayer.frame.size.width, defluviumLayer.frame.size.height)]; [candleStickLayer setPosition:CGPointMake(defluviumLayer.position.x,defluviumLayer.position.y)]; [self.view.layer addSublayer:candleStickLayer]; [candleStickLayer update]; </code></pre> <p>I'm drawing in a CALayer, and have Image with image below layer, as I have tested - if i draw on clear white view - the line can be drawn with width 1, but not on the image</p>
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