IOS开发中多线图封装的操作

#define XYQColor(r, g, b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define XYQRandomColor XYQColor(arc4random_uniform(256), arc4random_uniform(256), arc4random_uniform(256))
#define MARGIN  30 // 坐标轴与画布间距
#define Y_EVERY_MARGIN 20 // y轴每一个值的间隔数

#import 
// 线条类型
typedef NS_ENUM(NSInteger, LineType) {
 LineType_Straight, // 折线
 LineType_Curve // 曲线
};
@interface BezierCurveView : UIView

//初始化画布
+(instancetype)initWithFrame:(CGRect)frame;
//画多根折线图
-(void)drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType;
@end

#import "BezierCurveView.h"

static CGRect myFrame;

@interface BezierCurveView ()

@end

@implementation BezierCurveView

//初始化画布
+(instancetype)initWithFrame:(CGRect)frame{

 BezierCurveView *bezierCurveView = [[BezierCurveView alloc]init]; 
 bezierCurveView.frame = frame;

 //背景视图
 UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];
 backView.backgroundColor = [UIColor clearColor];
 [bezierCurveView addSubview:backView];

 myFrame = frame;
 return bezierCurveView;
}

/**
 * 画坐标轴
 */
-(void)drawXYLine:(NSMutableArray *)x_names{

 UIBezierPath *path = [UIBezierPath bezierPath];

 //1.Y轴、X轴的直线
 [path moveToPoint:CGPointMake(MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
 [path addLineToPoint:CGPointMake(MARGIN, MARGIN)];

 [path moveToPoint:CGPointMake(MARGIN, CGRectGetHeight(myFrame)-MARGIN)];
 [path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];

// //2.添加箭头
// [path moveToPoint:CGPointMake(MARGIN, MARGIN)];
// [path addLineToPoint:CGPointMake(MARGIN-5, MARGIN+5)];
// [path moveToPoint:CGPointMake(MARGIN, MARGIN)];
// [path addLineToPoint:CGPointMake(MARGIN+5, MARGIN+5)];
// 
// [path moveToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];
// [path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame)-5, CGRectGetHeight(myFrame)-MARGIN-5)];
// [path moveToPoint:CGPointMake(CGRectGetWidth(myFrame), CGRectGetHeight(myFrame)-MARGIN)];
// [path addLineToPoint:CGPointMake(CGRectGetWidth(myFrame)-5, CGRectGetHeight(myFrame)-MARGIN+5)];

 //3.添加索引格
 //X轴
 for (int i=0; i

/**
 * 画多根折线图
 */
-(void)drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType{

 //1.画坐标轴
 [self drawXYLine:x_names];

 for (int j=0; j

#define SCREEN_W [UIScreen mainScreen].bounds.size.width
#define SCREEN_H [UIScreen mainScreen].bounds.size.height

 //1.初始化
 _bezierView = [BezierCurveView initWithFrame:CGRectMake(30, 30, SCREEN_W-60, 280)];
 _bezierView.center = self.view.center;
 [self.view addSubview:_bezierView];
 // 多根折线图
 [_bezierView drawMoreLineChartViewWithX_Value_Names:(NSMutableArray *)@[@"语文",@"数学",@"英语",@"物理",@"化学",@"生物",@"政治",@"历史",@"地理"] TargetValues:(NSMutableArray *)@[@[@60,@20,@50,@30,@90,@30,@100,@70, @20],@[@20,@40,@20,@50,@30,@90,@30,@100,@70],@[@10,@30,@40,@70,@50,@30,@20,@10,@80]] LineType:LineType_Straight];