Drawing Hexagon like piechart in iOS - ios

Question

I am drawing a hexagon with 3 different colors. I gave a color for each line.
Here is my code;
- (void)drawRect:(CGRect)rect {
self.colors = [[NSMutableArray alloc] initWithObjects:[UIColor yellowColor],[UIColor yellowColor],[UIColor blueColor],[UIColor blueColor],[UIColor greenColor],[UIColor greenColor], nil];
[self addPointsToArray];
CGPoint startPoint = [[self.points objectAtIndex:self.pointCounter] CGPointValue];
CGPoint endPoint = [[self.points objectAtIndex:self.pointCounter+1] CGPointValue];
UIColor *color = [self.colors objectAtIndex:self.pointCounter];
[self drawingEachLineWithDifferentBezier:startPoint endPoint:endPoint color:color];
self.pointCounter++;
}
- (void)addPointsToArray {
self.points = [[NSMutableArray alloc] init];
float polySize = self.frame.size.height/2;
CGFloat hexWidth = self.frame.size.width;
CGFloat hexHeight = self.frame.size.height;
CGPoint center = CGPointMake(hexWidth/2, hexHeight/2);
CGPoint startPoint = CGPointMake(center.x, 0);
for(int i = 3; i >= 1 ; i--) {
CGFloat x = polySize * sinf(i * 2.0 * M_PI / 6);
CGFloat y = polySize * cosf(i * 2.0 * M_PI / 6);
NSLog(#"x = %f, y= %f",x,y);
CGPoint point = CGPointMake(center.x + x, center.y + y);
[self.points addObject:[NSValue valueWithCGPoint:point]];
}
for(int i = 6; i > 3 ; i--) {
CGFloat x = polySize * sinf(i * 2.0 * M_PI / 6);
CGFloat y = polySize * cosf(i * 2.0 * M_PI / 6);
CGPoint point = CGPointMake(center.x + x, center.y + y);
[self.points addObject:[NSValue valueWithCGPoint:point]];
}
[self.points addObject:[NSValue valueWithCGPoint:startPoint]];
}
- (void)drawingEachLineWithDifferentBezier:(CGPoint)startPoint endPoint:(CGPoint)endPoint color:(UIColor *)color {
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:startPoint];
[path addLineToPoint:endPoint];
CAShapeLayer *pathLayer = [CAShapeLayer layer];
pathLayer.frame = self.bounds;
pathLayer.path = path.CGPath;
pathLayer.lineCap = kCALineCapRound;
//pathLayer.lineCap = kCALineCapSquare;
pathLayer.strokeColor = [color CGColor];
pathLayer.fillColor = nil;
pathLayer.lineWidth = 15.0f;
pathLayer.cornerRadius = 2.0f;
pathLayer.lineJoin = kCALineJoinBevel;
//pathLayer.lineDashPattern = #[#15];
[self.layer addSublayer:pathLayer];
CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:#"strokeEnd"];
pathAnimation.duration = 0.3f;
pathAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
pathAnimation.toValue = [NSNumber numberWithFloat:1.0f];
pathAnimation.delegate = self;
[pathLayer addAnimation:pathAnimation forKey:#"strokeEnd"];
}
- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag{
if (self.pointCounter < self.points.count - 1) {
CGPoint startPoint = [[self.points objectAtIndex:self.pointCounter] CGPointValue];
CGPoint endPoint = [[self.points objectAtIndex:self.pointCounter+1] CGPointValue];
UIColor *color = [self.colors objectAtIndex:self.pointCounter];
[self drawingEachLineWithDifferentBezier:startPoint endPoint:endPoint color:color];
self.pointCounter++;
}
}
and I got this view.
My purpose is, i want to be yellow color until red point on 3. line. So i thought if i can find red point coodinate, i can add new point in my points array. Than i can draw yellow line from end of 2. line to red point and blue line from red point to end of 3. line.
Am i on wrong way? If i am not, how can i find red point coordinate or what is your advice?
Thanks for your answer and interest :).