iOS BezierPath 贝塞尔曲线的绘制

//绘制矩形 - (void)drawSequl { UIColor * color =[UIColor redColor]; //设置画笔颜色 [color setFill]; UIRectFill(CGRectMake(10, 10, 100, 100)); } //绘制自定义矩形 - (void)drawDiySqul { //设置线条颜色 UIColor * color =[UIColor colorWithRed:0 green:0 blue:0.7 alpha:1]; [color set]; UIBezierPath * path = [UIBezierPath bezierPathWithRect:CGRectMake(10, 10, 100, 100)]; path.lineWidth = 2; path.lineCapStyle = kCGLineCapRound; //设置线条的拐角 path.lineJoinStyle = kCGLineJoinRound; //终点处理 [path stroke]; } //画圆 - (void)drawCircle { [[UIColor redColor] set]; // UIBezierPath * path =[UIBezierPath bezierPathWithRoundedRect:CGRectMake(10, 10, 400, 400) cornerRadius:200]; //画椭圆只要把高或者宽 改一下即可 UIBezierPath * path =[UIBezierPath bezierPathWithOvalInRect:CGRectMake(10, 10, 200, 200)]; path.lineWidth =8; [path stroke]; } //多边形 - (void)drawDiyGraph { //设置画笔颜色 [[UIColor orangeColor] set]; UIBezierPath * path =[UIBezierPath bezierPath]; path.lineWidth = 4; path.lineCapStyle = kCGLineCapRound; path.lineJoinStyle = kCGLineJoinRound; //设置起点 [path moveToPoint:CGPointMake(10, 10)]; //绘制线条 [path addLineToPoint:CGPointMake(60, 10)]; [path addLineToPoint:CGPointMake(60, 20)]; [path addLineToPoint:CGPointMake(50, 70)]; [path addLineToPoint:CGPointMake(30, 120)]; [path addLineToPoint:CGPointMake(20, 200)]; //最后一条线封闭图形 [path closePath]; //根据坐标点连线 [path stroke]; //填充 [path fill]; } //绘制不规则图形 - (void)drawIrregularity { //设置画笔颜色 [[UIColor whiteColor] set]; /*第一个参数圆点 第二个参数 半径 第三个参数 初始角度 （弧度使用顺时针脚底，0弧度指向右边，pi/2指向下方，pi指向左边，-pi/2指向上方） 第四个参数 结束角度 */ UIBezierPath * path =[UIBezierPath bezierPathWithArcCenter:CGPointMake(100, 100) radius:90 startAngle:0 endAngle:3.14/2*3 clockwise:YES]; path.lineWidth = 8; [path stroke]; } //绘制贝塞尔曲线 - (void)drawBersizer { //设置画笔颜色 [[UIColor whiteColor]set]; UIBezierPath * path = [UIBezierPath bezierPath]; path.lineWidth = 4; [path moveToPoint:CGPointMake(10, 210)]; [path addQuadCurveToPoint:CGPointMake(310, 210) controlPoint:CGPointMake(100, 50)]; [path stroke]; } //贝塞尔波浪线 - (void)drawBolang { //设置画笔颜色 [[UIColor whiteColor]set]; // UIBezierPath * path = [UIBezierPath bezierPath]; path.lineWidth =6; [path moveToPoint:CGPointMake(10, 310)]; [path addCurveToPoint:CGPointMake(370, 310) controlPoint1:CGPointMake(130, 210) controlPoint2:CGPointMake(250, 410)]; [path stroke]; } //波浪 (多个拐弯) - (void)drawLLLL { [[UIColor whiteColor]set]; UIBezierPath * path = [UIBezierPath bezierPath]; path.lineWidth =4; path.lineCapStyle = kCGLineCapRound; [path moveToPoint:CGPointMake(0, 200)]; [path addQuadCurveToPoint:CGPointMake(100, 200) controlPoint:CGPointMake(50, 100)]; [path addQuadCurveToPoint:CGPointMake(200, 200) controlPoint:CGPointMake(150, 300)]; [path addQuadCurveToPoint:CGPointMake(300, 200) controlPoint:CGPointMake(250, 100)]; [path stroke]; }