//初始化画布
+(instancetype)initWithFrame:(CGRect)frame{//找到名称叫BezierCurveView的xib视图BezierCurveView *bezierCurveView = [[NSBundle mainBundle] loadNibNamed:@"BezierCurveView" owner:self options:nil].lastObject;bezierCurveView.frame = frame;//背景视图UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)];backView.backgroundColor = XYQColor(255, 229, 239);[bezierCurveView addSubview:backView];myFrame = frame;return bezierCurveView;
}

/***  画坐标轴*/
-(void)drawXYLine:(NSMutableArray *)x_names AdddistanceValues:(NSInteger )adddistance StartingValues:(NSInteger)starting ProportionValuess:(NSInteger)proportion{UIBezierPath *path = [UIBezierPath bezierPath];//1.Y轴、X轴的直线[path moveToPoint:CGPointMake(MARGIN+adddistance, CGRectGetHeight(myFrame)-MARGIN)];[path addLineToPoint:CGPointMake(MARGIN+adddistance, MARGIN)];[path moveToPoint:CGPointMake(MARGIN+adddistance, CGRectGetHeight(myFrame)-MARGIN)];[path addLineToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN+adddistance, CGRectGetHeight(myFrame)-MARGIN)];//2.添加箭头[path moveToPoint:CGPointMake(MARGIN+adddistance, MARGIN)];[path addLineToPoint:CGPointMake(MARGIN-5+adddistance, MARGIN+5)];[path moveToPoint:CGPointMake(MARGIN+adddistance, MARGIN)];[path addLineToPoint:CGPointMake(MARGIN+5+adddistance, MARGIN+5)];[path moveToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN+adddistance, CGRectGetHeight(myFrame)-MARGIN)];[path addLineToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN-5+adddistance, CGRectGetHeight(myFrame)-MARGIN-5)];[path moveToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN+adddistance, CGRectGetHeight(myFrame)-MARGIN)];[path addLineToPoint:CGPointMake(MARGIN+CGRectGetWidth(myFrame)-2*MARGIN-5+adddistance, CGRectGetHeight(myFrame)-MARGIN+5)];//3.添加索引格//X轴for (int i=0; i<x_names.count; i++) {CGFloat X = MARGIN + MARGIN*(i+1);CGPoint point = CGPointMake(X+adddistance,CGRectGetHeight(myFrame)-MARGIN);[path moveToPoint:point];[path addLineToPoint:CGPointMake(point.x, point.y-3)];}//Y轴（实际长度为200,此处比例缩小一倍使用）for (int i=0; i<11; i++) {CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-Y_EVERY_MARGIN*i;CGPoint point = CGPointMake(MARGIN+adddistance,Y);[path moveToPoint:point];[path addLineToPoint:CGPointMake(point.x+3, point.y)];}//4.添加索引格文字//X轴for (int i=0; i<x_names.count+1; i++) {CGFloat X = MARGIN + 15 + MARGIN*i;UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(X+adddistance, CGRectGetHeight(myFrame)-MARGIN, MARGIN, 20)];if(i < x_names.count){textLabel.text = x_names[i];}else{textLabel.text = @"年/月";}textLabel.font = [UIFont systemFontOfSize:10];textLabel.textAlignment = NSTextAlignmentCenter;textLabel.textColor = [UIColor blueColor];[self addSubview:textLabel];}//Y轴for (int i=0; i<11; i++) {CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-Y_EVERY_MARGIN*i;UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, Y-5, MARGIN+adddistance, 10)];textLabel.text = [NSString stringWithFormat:@"%ld",starting+proportion*10*i];textLabel.font = [UIFont systemFontOfSize:10];textLabel.textAlignment = NSTextAlignmentCenter;textLabel.textColor = [UIColor redColor];[self addSubview:textLabel];}//5.渲染路径CAShapeLayer *shapeLayer = [CAShapeLayer layer];shapeLayer.path = path.CGPath;shapeLayer.strokeColor = [UIColor blackColor].CGColor;shapeLayer.fillColor = [UIColor clearColor].CGColor;shapeLayer.borderWidth = 2.0;[self.subviews[0].layer addSublayer:shapeLayer];
}

/***  画折线图*  @param x_names      x轴值的所有值名称*  @param targetValues 所有目标值*  @param lineType     直线类型*  @param adddistance  y轴的字符串长度的增加距离*  @param starting     坐标轴原点的大小数值*  @param proportion   y轴上的数值比例差为10的倍数*/
-(void)drawLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType AdddistanceValues:(NSInteger )adddistance  StartingValues:(NSInteger)starting ProportionValuess:(NSInteger)proportion;
/***  画柱状图*  @param x_names      x轴值的所有值名称*  @param targetValues 所有目标值*  @param adddistance  y轴的字符串长度的增加距离*  @param starting     坐标轴原点的大小数值*  @param proportion   y轴上的数值比例差为10的倍数*/
-(void)drawBarChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues AdddistanceValues:(NSInteger )adddistance  StartingValues:(NSInteger)starting ProportionValuess:(NSInteger)proportion;

/***  画折线图*/
-(void)drawLineChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues LineType:(LineType) lineType AdddistanceValues:(NSInteger )adddistance  StartingValues:(NSInteger)starting ProportionValuess:(NSInteger)proportion{//1.画坐标轴
    [self drawXYLine:x_names AdddistanceValues:adddistance StartingValues:starting ProportionValuess:proportion];NSMutableArray * targetValues1 =[[NSMutableArray alloc]init];for (int i=0; i<targetValues.count; i++  ){CGFloat coed =[targetValues[i] integerValue];[targetValues1 addObject:@((coed-starting)/proportion)];}//2.获取目标值点坐标NSMutableArray *allPoints = [NSMutableArray array];for (int i=0; i<targetValues1.count; i++) {CGFloat doubleValue = 2*[targetValues1[i] floatValue]; //目标值放大两倍CGFloat X = MARGIN+adddistance + MARGIN*(i+1);CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-doubleValue;CGPoint point = CGPointMake(X,Y);UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(point.x-1, point.y-1, 2.5, 2.5) cornerRadius:2.5];CAShapeLayer *layer = [CAShapeLayer layer];layer.strokeColor = [UIColor purpleColor].CGColor;layer.fillColor = [UIColor purpleColor].CGColor;layer.path = path.CGPath;[self.subviews[0].layer addSublayer:layer];[allPoints addObject:[NSValue valueWithCGPoint:point]];}//3.坐标连线UIBezierPath *path = [UIBezierPath bezierPath];[path moveToPoint:[allPoints[0] CGPointValue]];CGPoint PrePonit;switch (lineType) {case LineType_Straight: //直线for (int i =1; i<allPoints.count; i++) {CGPoint point = [allPoints[i] CGPointValue];[path addLineToPoint:point];}break;case LineType_Curve:   //曲线for (int i =0; i<allPoints.count; i++) {if (i==0) {PrePonit = [allPoints[0] CGPointValue];}else{CGPoint NowPoint = [allPoints[i] CGPointValue];[path addCurveToPoint:NowPoint controlPoint1:CGPointMake((PrePonit.x+NowPoint.x)/2, PrePonit.y) controlPoint2:CGPointMake((PrePonit.x+NowPoint.x)/2, NowPoint.y)]; //三次曲线PrePonit = NowPoint;}}break;}CAShapeLayer *shapeLayer = [CAShapeLayer layer];shapeLayer.path = path.CGPath;shapeLayer.strokeColor = [UIColor greenColor].CGColor;shapeLayer.fillColor = [UIColor clearColor].CGColor;shapeLayer.borderWidth = 2.0;[self.subviews[0].layer addSublayer:shapeLayer];//4.添加目标值文字for (int i =0; i<allPoints.count; i++) {UILabel *label = [[UILabel alloc] init];label.textColor = [UIColor purpleColor];label.textAlignment = NSTextAlignmentCenter;label.font = [UIFont systemFontOfSize:10];[self.subviews[0] addSubview:label];if (i==0) {CGPoint NowPoint = [allPoints[0] CGPointValue];label.text = [NSString stringWithFormat:@"%.0lf",starting+proportion*(CGRectGetHeight(myFrame)-NowPoint.y-MARGIN)/2];label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y-20, MARGIN+adddistance, 20);PrePonit = NowPoint;}else{CGPoint NowPoint = [allPoints[i] CGPointValue];if (NowPoint.y<PrePonit.y) {  //文字置于点上方label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y-20, MARGIN+adddistance, 20);}else{ //文字置于点下方label.frame = CGRectMake(NowPoint.x-MARGIN/2, NowPoint.y, MARGIN+adddistance, 20);}label.text = [NSString stringWithFormat:@"%.0lf",starting+proportion*(CGRectGetHeight(myFrame)-NowPoint.y-MARGIN)/2];PrePonit = NowPoint;}}
}

/***  画柱状图*/
-(void)drawBarChartViewWithX_Value_Names:(NSMutableArray *)x_names TargetValues:(NSMutableArray *)targetValues AdddistanceValues:(NSInteger )adddistance  StartingValues:(NSInteger)starting ProportionValuess:(NSInteger)proportion{//1.画坐标轴
    [self drawXYLine:x_names AdddistanceValues:adddistance StartingValues:starting ProportionValuess:proportion];NSMutableArray * targetValues1 =[[NSMutableArray alloc]init];for (int i=0; i<targetValues.count; i++  ){CGFloat coed =[targetValues[i] integerValue];[targetValues1 addObject:@((coed-starting)/proportion)];}//2.每一个目标值点坐标for (int i=0; i<targetValues1.count; i++) {CGFloat doubleValue = 2*[targetValues1[i] floatValue]; //目标值放大两倍CGFloat X = MARGIN + MARGIN*(i+1)+5;CGFloat Y = CGRectGetHeight(myFrame)-MARGIN-doubleValue;UIBezierPath *path = [UIBezierPath bezierPathWithRect:CGRectMake(X-MARGIN/2+adddistance, Y, MARGIN-10, doubleValue)];CAShapeLayer *shapeLayer = [CAShapeLayer layer];shapeLayer.path = path.CGPath;shapeLayer.strokeColor = [UIColor clearColor].CGColor;shapeLayer.fillColor = XYQRandomColor.CGColor;shapeLayer.borderWidth = 2.0;[self.subviews[0].layer addSublayer:shapeLayer];//3.添加文字UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(X-MARGIN/2, Y-20, MARGIN-10+adddistance*2, 20)];label.text = [NSString stringWithFormat:@"%.0lf",starting+proportion*(CGRectGetHeight(myFrame)-Y-MARGIN)/2];label.textColor = [UIColor purpleColor];label.textAlignment = NSTextAlignmentCenter;label.font = [UIFont systemFontOfSize:10];[self.subviews[0] addSubview:label];}
}

- (void)viewDidLoad {[super viewDidLoad];self.view.layer.backgroundColor=[UIColor whiteColor].CGColor;//1.初始化self.bezierView = [BezierCurveView initWithFrame:CGRectMake(20, 30, SCREEN_W-40, 280)];self.bezierView.center = self.view.center;[self.view addSubview:self.bezierView];//2.折线图// [self drawLineChart];//3.柱状图//  [self drawBaseChart];
}//画折线图
-(void)drawLineChart{//直线//    [self.bezierView drawLineChartViewWithX_Value_Names:self.x_names TargetValues:self.targets LineType:LineType_Straight AdddistanceValues:20  StartingValues:120000 ProportionValuess:100];// [self.bezierView drawLineChartViewWithX_Value_Names:self.x_names TargetValues:self.targets LineType:LineType_Curve AdddistanceValues:10  StartingValues:50000 ProportionValuess:100];// [self.bezierView drawLineChartViewWithX_Value_Names:self.x_names TargetValues:self.targets LineType:LineType_Curve AdddistanceValues:20  StartingValues:120000 ProportionValuess:100];
}