#import "ViewController.h"

@interface ViewController ()

//要绘制基于x,y轴的图形

@property(nonatomic,retain)CPTXYGraph *graph;

@property(nonatomic,retain)NSMutableArray *dataForPlot;

//要绘制的view 必须为CPTGraphicView

@property(nonatomic,assign)CPTGraphHostingView *hostview;

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    [self LoadInit];

   [self SetUpCoreplotViews];

}

-(void)LoadInit{

    self.hostview=[[[CPTGraphHostingView alloc] initWithFrame:CGRectMake(, , , )] autorelease];

    self.dataForPlot=[NSMutableArray array];

    [self.view addSubview:_hostview];

}

-(void)SetUpCoreplotViews{

    //1:创建线性

    CPTMutableLineStyle *lineStyle=[CPTMutableLineStyle lineStyle];

    //基于x,y轴图形的画布

    self.graph=[[[CPTXYGraph alloc] initWithFrame:CGRectZero] autorelease];

    //设置主题

    CPTTheme *them=[CPTTheme themeNamed:kCPTStocksTheme];

    //把主题设置到画布上

    [self.graph applyTheme:them];

    //设置画布距离view的边距

    self.graph.paddingLeft=10.0f;

    self.graph.paddingTop=10.0f;

    self.graph.paddingRight=10.0f;

    self.graph.paddingBottom=10.0f;

    //然后把画布设置到指定view上

    self.hostview.hostedGraph=_graph;

    //设置画布在屏幕类可显示的x,y刻度

    CPTXYPlotSpace *plotSpace=(CPTXYPlotSpace *)_graph.defaultPlotSpace;

    //可以移动

    plotSpace.allowsUserInteraction=YES;

    plotSpace.xRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromCGFloat(1.0) length:CPTDecimalFromCGFloat(2.0)];

    plotSpace.yRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromCGFloat(1.0) length:CPTDecimalFromCGFloat(3.0)];

    //axes 设置x,y轴属性，如原点。

    //得到x，y轴的集合

    CPTXYAxisSet *axisSet=(CPTXYAxisSet *)self.graph.axisSet;

    lineStyle.miterLimit=1.0f;

    lineStyle.lineWidth=2.0f;

    lineStyle.lineColor=[CPTColor whiteColor];

    CPTXYAxis *x=axisSet.xAxis;

    x.orthogonalCoordinateDecimal=CPTDecimalFromString(@"");//原点为3.(y=3）

    x.majorIntervalLength=CPTDecimalFromString(@"0.5");//主刻度之间检举

    x.minorTicksPerInterval=;//主刻度中显示的细分刻度的数目

    x.minorTickLineStyle=lineStyle;

    //需要排除的不显示数字的主刻度

    NSArray *exclusionRange=[NSArray arrayWithObjects:[self CPTPlotRangeFromFloat:0.99 length:0.02],[self CPTPlotRangeFromFloat:2.99 length:0.02],nil];

    x.labelExclusionRanges=exclusionRange;

    //设置y 轴

    CPTXYAxis *y=axisSet.yAxis;

    y.orthogonalCoordinateDecimal=CPTDecimalFromString(@"");

    y.majorIntervalLength=CPTDecimalFromString(@"0.5");

    y.minorTicksPerInterval=;

    y.minorTickLineStyle=lineStyle;

    NSArray *yexclusionRange=[NSArray arrayWithObjects:[self CPTPlotRangeFromFloat:0.99 length:0.22],[self CPTPlotRangeFromFloat:2.99 length:0.22],nil];

    y.labelExclusionRanges=yexclusionRange;

}

-(CPTPlotRange *)CPTPlotRangeFromFloat:(float)location length:(float)length

{

    return [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(location) length:CPTDecimalFromFloat(length)];

}

- (void)dealloc

{

    [_graph release];

    [_dataForPlot release];

    [super dealloc];

}

//

//  ViewController.m

//  corePlot

//

//  Created by ganchaobo on 13-7-31.

//  Copyright (c) 2013年 ganchaobo. All rights reserved.

//

#import "ViewController.h"

@interface ViewController ()

//要绘制基于x,y轴的图形

@property(nonatomic,retain)CPTXYGraph *graph;

@property(nonatomic,retain)NSMutableArray *dataForPlot;

//要绘制的view 必须为CPTGraphicView

@property(nonatomic,assign)CPTGraphHostingView *hostview;

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    [self LoadInit];

   [self SetUpCoreplotViews];

}

-(void)LoadInit{

    self.hostview=[[[CPTGraphHostingView alloc] initWithFrame:CGRectMake(, , , )] autorelease];

    self.dataForPlot=[NSMutableArray array];

    [self.view addSubview:_hostview];

    //_dataForPlot = [NSMutableArray arrayWithCapacity:100];

    NSUInteger i;

    for ( i = ; i < ; i++ ) {

        id x = [NSNumber numberWithFloat: + i * 0.05];

        id y = [NSNumber numberWithFloat:1.2 * rand() / (float)RAND_MAX + 1.2];

        [_dataForPlot addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:x, @"x", y, @"y", nil]];

    }

}

-(void)SetUpCoreplotViews{

    //1:创建线性

    CPTMutableLineStyle *lineStyle=[CPTMutableLineStyle lineStyle];

    //基于x,y轴图形的画布

    self.graph=[[[CPTXYGraph alloc] initWithFrame:CGRectZero] autorelease];

    //设置主题

    CPTTheme *them=[CPTTheme themeNamed:kCPTStocksTheme];

    //把主题设置到画布上

    [self.graph applyTheme:them];

    //设置画布距离view的边距

    self.graph.paddingLeft=10.0f;

    self.graph.paddingTop=10.0f;

    self.graph.paddingRight=10.0f;

    self.graph.paddingBottom=10.0f;

    //然后把画布设置到指定view上

    self.hostview.hostedGraph=_graph;

    //设置画布在屏幕类可显示的x,y刻度

    CPTXYPlotSpace *plotSpace=(CPTXYPlotSpace *)_graph.defaultPlotSpace;

    //可以移动

    plotSpace.allowsUserInteraction=YES;

    plotSpace.xRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromCGFloat(1.0) length:CPTDecimalFromCGFloat(2.0)];

    plotSpace.yRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromCGFloat(1.0) length:CPTDecimalFromCGFloat(3.0)];

    //axes 设置x,y轴属性，如原点。

    //得到x，y轴的集合

    CPTXYAxisSet *axisSet=(CPTXYAxisSet *)self.graph.axisSet;

    lineStyle.miterLimit=1.0f;

    lineStyle.lineWidth=2.0f;

    lineStyle.lineColor=[CPTColor whiteColor];

    CPTXYAxis *x=axisSet.xAxis;

    x.orthogonalCoordinateDecimal=CPTDecimalFromString(@"");//原点为3.(y=3）

    x.majorIntervalLength=CPTDecimalFromString(@"0.5");//主刻度之间检举

    x.minorTicksPerInterval=;//主刻度中显示的细分刻度的数目

    x.minorTickLineStyle=lineStyle;

    //需要排除的不显示数字的主刻度

    NSArray *exclusionRange=[NSArray arrayWithObjects:[self CPTPlotRangeFromFloat:0.99 length:0.02],[self CPTPlotRangeFromFloat:2.99 length:0.02],nil];

    x.labelExclusionRanges=exclusionRange;

    //设置y 轴

    CPTXYAxis *y=axisSet.yAxis;

    y.orthogonalCoordinateDecimal=CPTDecimalFromString(@"");

    y.majorIntervalLength=CPTDecimalFromString(@"0.5");

    y.minorTicksPerInterval=;

    y.minorTickLineStyle=lineStyle;

    NSArray *yexclusionRange=[NSArray arrayWithObjects:[self CPTPlotRangeFromFloat:0.99 length:0.22],[self CPTPlotRangeFromFloat:2.99 length:0.22],nil];

    y.labelExclusionRanges=yexclusionRange;

    //画折线

    lineStyle.miterLimit=1.0f;

    lineStyle.lineWidth=3.0f;

    lineStyle.lineColor=[CPTColor blueColor];

    //折线的对象

    CPTScatterPlot *boundlinePlot=[[CPTScatterPlot alloc] init];

    boundlinePlot.dataLineStyle=lineStyle;

    boundlinePlot.identifier=@"blue";

    boundlinePlot.dataSource=self;

    [_graph addPlot:boundlinePlot];

}

-(CPTPlotRange *)CPTPlotRangeFromFloat:(float)location length:(float)length

{

    return [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(location) length:CPTDecimalFromFloat(length)];

}

#pragma mark -plot delegate

-(NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot{

    return self.dataForPlot.count;

}

-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index

{

    NSString * key = (fieldEnum == CPTScatterPlotFieldX ? @"x" : @"y");

    NSNumber * num = [[_dataForPlot objectAtIndex:index] valueForKey:key];

    NSLog(@"%zi-->%@",[num intValue],key);

    return num;

}

- (void)dealloc

{

    [_graph release];

    [_dataForPlot release];

    [super dealloc];

}

@end