绘制统计图中的折线图，支持多条线、多种颜色、线体粗细的绘制，支持左右滑动折线图显示更多数据。

// PNLineChartView.h // // Copyright (c) 2014 John Yung pincution@gmail.com // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in all // copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. #import <UIKit/UIKit.h> @class PNPlot; @interface PNLineChartView : UIView @property (nonatomic, strong) NSArray *xAxisValues; @property (nonatomic, assign) NSInteger xAxisFontSize; @property (nonatomic, strong) UIColor* xAxisFontColor; @property (nonatomic, assign) NSInteger numberOfVerticalElements; @property (nonatomic, strong) UIColor * horizontalLinesColor; @property (nonatomic, assign) float max; // max value in the axis @property (nonatomic, assign) float min; // min value in the axis @property (nonatomic, assign) float interval; // interval value between two horizontal line @property (nonatomic, assign) float pointerInterval; // the x interval width between pointers @property (nonatomic, assign) float axisLineWidth; // axis line width @property (nonatomic, assign) float horizontalLineInterval; // the height between two horizontal line @property (nonatomic, assign) float horizontalLineWidth; // the width of the horizontal line @property (nonatomic, assign) float axisBottomLinetHeight; // xAxis line off the view @property (nonatomic, assign) float axisLeftLineWidth; //yAxis line between the view left @property (nonatomic, strong) NSString* floatNumberFormatterString; // the yAxis label text should be formatted with @property (nonatomic, strong) NSArray* yAxisValues; // array of number /** * readyonly dictionary that stores all the plots in the graph. */ @property (nonatomic, readonly, strong) NSMutableArray *plots; /** * this method will add a Plot to the graph. * * @param newPlot the Plot that you want to draw on the Graph. */ - (void)addPlot:(PNPlot *)newPlot; @end