objective-c CG filling path not working - objective-c

Question

I have following problem:
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineCap(context,kCGLineCapRound);
CGContextSetLineJoin(context, kCGLineJoinRound);
CGContextSetRGBFillColor(context, 1, 0, 0, 1);
for (drawnCurve *line in completeLines) {
CGContextBeginPath(context);
for(int i=0;i<[line.points count]-1;i++)
{
drawnPoint*point=[line.points objectAtIndex:i];
drawnPoint*point2=[line.points objectAtIndex:i+1];
// CGContextSetLineWidth(context, point.r);
[point.color set];
CGContextMoveToPoint(context, point.x,point.y);
CGContextAddLineToPoint(context, point2.x, point2.y);
// CGContextAddCurveToPoint(context, (point.x+point2.x)/2, point2.y, (point.x+point2.x)/2, point2.y, point2.x, point2.y);
//CGContextEOFillPath(context);
}
CGContextClosePath(context);
CGContextFillPath(context);
}
But it's just disappearing and not showing any kind of filled curves.. What is the problem?

Answer 1

A call to CGContextMoveToPoint begins a new subpath. You should call it once before your nested for loop, and then use only CGContextAddLineToPoint to preserve line connectivity:
drawnPoint*pointZero=[line.points objectAtIndex:0];
CGContextMoveToPoint(context, pointZero.x,pointZero.y);
for(int i=1;i<[line.points count];i++)
{
drawnPoint*point=[line.points objectAtIndex:i];
CGContextAddLineToPoint(context, point.x, point.y);
}
CGContextClosePath(context);
CGContextFillPath(context);