Merge branch 'master' of https://github.com/DeveloperLx/LxThroughPointsBezier

Author: li.x

README.md

@@ -1,2 +1,44 @@
 # LxThroughPointsBezier
 Draw a smooth bezier through several points you designated. The curve‘s bend level is adjustable.
+Installation
+------------
+You only need drag UIBezierPath+LxThroughPointsBezier.h and UIBezierPath+LxThroughPointsBezier.m to your project.
+Support
+------------
+        Minimum support iOS version: iOS 5.0
+How to use
+-----------
+    #import "UIBezierPath+LxThroughPointsBezier.h"
+###
+    CGPoint point1 = CGPointMake(30, 180);
+    CGPoint point2 = CGPointMake(90, 120);
+    CGPoint point3 = CGPointMake(120, 200);
+    CGPoint point4 = CGPointMake(160, 240);
+    CGPoint point5 = CGPointMake(210, 160);
+    CGPoint point6 = CGPointMake(240, 300);
+    CGPoint point7 = CGPointMake(290, 140);
+    
+    NSValue * point1Value = [NSValue valueWithCGPoint:point1];
+    NSValue * point2Value = [NSValue valueWithCGPoint:point2];
+    NSValue * point3Value = [NSValue valueWithCGPoint:point3];
+    NSValue * point4Value = [NSValue valueWithCGPoint:point4];
+    NSValue * point5Value = [NSValue valueWithCGPoint:point5];
+    NSValue * point6Value = [NSValue valueWithCGPoint:point6];
+    NSValue * point7Value = [NSValue valueWithCGPoint:point7];
+    
+    _pointArray = [NSMutableArray array];
+    [_pointArray addObjectsFromArray:@[point1Value, point2Value, point3Value, point4Value, point5Value, point6Value, point7Value]];
+    
+    _curve = [UIBezierPath bezierPath];
+    [_curve addCurvesThroughPoints:_pointArray];
+    
+    _shapeLayer = [CAShapeLayer layer];
+    _shapeLayer.strokeColor = [UIColor blueColor].CGColor;
+    _shapeLayer.fillColor = nil;
+    _shapeLayer.lineWidth = 3;
+    _shapeLayer.path = _curve.CGPath;
+    [_view.layer addSublayer:_shapeLayer];
+Be careful            
+-----------
+    The good bend level is about 0.6 ~ 0.8. The default and recommended value is 0.7.
+    You must wrap CGPoint struct to NSValue object, and give at least 2 point for drawing the curve.