StackOverflow2013

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POQuartz paths not drawing like I expect
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copied!<p>I am trying to draw and fill simple paths in Quartz 2d for iPad.</p> <p>The following method from the class SPTCutPattern defines the paths that I want to draw:</p> <pre><code>- (void) initDummyCutPattern { NSArray *piece1Path = [[NSArray alloc] initWithObjects: [NSValue valueWithCGPoint:CGPointMake(0, 0)], [NSValue valueWithCGPoint:CGPointMake(3, 0)], [NSValue valueWithCGPoint:CGPointMake(3, 1)], [NSValue valueWithCGPoint:CGPointMake(2, 1)], [NSValue valueWithCGPoint:CGPointMake(2, 2)], [NSValue valueWithCGPoint:CGPointMake(0, 2)], nil]; SPTPuzzlePiece *Piece1 = [[SPTPuzzlePiece alloc] initWithWidthInGrid:3 andHeightInGrid:2 andLeftInGrid:0 andTopInGrid:0 andBuilt:YES andPathInGrid:piece1Path]; NSArray *piece2Path = [[NSArray alloc] initWithObjects: [NSValue valueWithCGPoint:CGPointMake(3, 0)], [NSValue valueWithCGPoint:CGPointMake(5, 0)], [NSValue valueWithCGPoint:CGPointMake(5, 5)], [NSValue valueWithCGPoint:CGPointMake(4, 5)], [NSValue valueWithCGPoint:CGPointMake(4, 4)], [NSValue valueWithCGPoint:CGPointMake(2, 4)], [NSValue valueWithCGPoint:CGPointMake(2, 3)], [NSValue valueWithCGPoint:CGPointMake(3, 3)], [NSValue valueWithCGPoint:CGPointMake(3, 2)], [NSValue valueWithCGPoint:CGPointMake(2, 2)], [NSValue valueWithCGPoint:CGPointMake(2, 1)], [NSValue valueWithCGPoint:CGPointMake(3, 1)], nil]; SPTPuzzlePiece *Piece2 = [[SPTPuzzlePiece alloc] initWithWidthInGrid:3 andHeightInGrid:5 andLeftInGrid:2 andTopInGrid:0 andBuilt:YES andPathInGrid:piece2Path]; NSArray *piece3Path = [[NSArray alloc] initWithObjects: [NSValue valueWithCGPoint:CGPointMake(0, 2)], [NSValue valueWithCGPoint:CGPointMake(3, 2)], [NSValue valueWithCGPoint:CGPointMake(3, 3)], [NSValue valueWithCGPoint:CGPointMake(2, 3)], [NSValue valueWithCGPoint:CGPointMake(2, 4)], [NSValue valueWithCGPoint:CGPointMake(4, 4)], [NSValue valueWithCGPoint:CGPointMake(4, 5)], [NSValue valueWithCGPoint:CGPointMake(0, 5)], nil]; SPTPuzzlePiece *Piece3 = [[SPTPuzzlePiece alloc] initWithWidthInGrid:4 andHeightInGrid:3 andLeftInGrid:0 andTopInGrid:2 andBuilt:YES andPathInGrid:piece3Path]; self.pieces = [[NSArray alloc] initWithObjects:Piece1, Piece2, Piece3, nil]; } </code></pre> <p>And this method from the class SPTPuzzlePieceView which is supposed to draw the paths:</p> <pre><code>- (void)drawRect:(CGRect)rect { int widthUnit = self.frame.size.width / self.puzzlePiece.widthInGrid; int heightUnit = self.frame.size.height / self.puzzlePiece.heightInGrid; CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetFillColorWithColor(context, [UIColor blackColor].CGColor); CGContextMoveToPoint(context, [[puzzlePiece.pathInGrid objectAtIndex:0] CGPointValue].x*widthUnit, [[puzzlePiece.pathInGrid objectAtIndex:0] CGPointValue].y*heightUnit); for (NSValue *point in puzzlePiece.pathInGrid) { CGContextAddLineToPoint(context, [point CGPointValue].x*widthUnit, [point CGPointValue].y*heightUnit); } CGContextFillPath(context); } </code></pre> <p>I am getting these three objects, which are absolutely NOT what I expect and want:</p> <p><a href="http://dl.dropbox.com/u/26067393/photo.PNG" rel="nofollow">screenshot</a></p> <p>The objects are supposed to be more (or less) like this:</p> <p><a href="http://dl.dropbox.com/u/26067393/photo2.JPG" rel="nofollow">shapes I wanted</a></p> <p>I am sorry that these methods are totally taken out of context, so I hope you can see what I am trying to do. The drawRect method gets called to draw each of the piece objects I defined in the first method in turn.</p> <p>I cannot figure out why it is not drawing the shapes I want. Help me please.</p> <p>Thanks!</p>

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