在x轴和y轴上的coreplot iOS中的动态数据 [英] dynamic data in coreplot iOS on x-axis and y-axis
本文介绍了在x轴和y轴上的coreplot iOS中的动态数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何在coreplot iOS中获得x轴/ y轴上的动态数据：目前使用演示代码这里：每一列下面我需要年度x轴，它本身是动态和y轴收入金额。这是否动态？
//
// CPDStockPriceStore.m
// CorePlotDemo
//
// NB：从Yahoo! Finance获取的价格数据：
// http://finance.yahoo.com/q/hp?s=AAPL
// http：/ /finance.yahoo.com/q/hp?s=GOOG
// http://finance.yahoo.com/q/hp?s=MSFT
//
//创建通过Steve Baranski在5/4/12。
//版权所有（c）2012 komorka technology，llc。版权所有。
//
#importCPDStockPriceStore.h
@interface CPDStockPriceStore（）
@end
@implementation CPDStockPriceStore
#pragma mark - 类方法
+（CPDStockPriceStore *）sharedInstance
{
static CPDStockPriceStore * sharedInstance ;
static dispatch_once_t once;
dispatch_once（& once，^ {
sharedInstance = [[self alloc] init];
}）;
return sharedInstance;
}
#pragma mark - API方法
- （NSArray *）tickerSymbols
{
static NSArray * symbols = nil;
if（！symbols）
{
symbols = [NSArray arrayWithObjects：
@AAPL，
@GOOG，
@MSFT ，
nil];
}
返回符号;
}
- （NSArray *）dailyPortfolioPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：582.13]，
[NSDecimalNumber numberWithFloat：604.43]，
[NSDecimalNumber numberWithFloat：32.01]，
nil];
}
返回价格;
}
- （NSArray *）datesInWeek
{
static NSArray * dates = nil;
if（！dates）
{
dates = [NSArray arrayWithObjects：
@4/23，
@4/24，
@4/25，
@4/26，
@4/27，
nil];
}
返回日期;
}
- （NSArray *）weeklyPrices：（NSString *）tickerSymbol
{
if（[CPDTickerSymbolAAPL isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self weeklyAaplPrices];
}
else if（[CPDTickerSymbolGOOG isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self weeklyGoogPrices];
}
else if（[CPDTickerSymbolMSFT isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self weeklyMsftPrices];
}
return [NSArray array];
}
- （NSArray *）datesInMonth
{
static NSArray * dates = nil;
if（！dates）
{
dates = [NSArray arrayWithObjects：
@2，
@3，
@4 ，
@5，
@9，
@10，
@11，
@12，
@13，
@16，
@17，
@18，
@19，
@20
@23，
@24，
@25，
@26，
@27，
@ 30，
nil];
}
返回日期;
}
- （NSArray *）monthlyPrices：（NSString *）tickerSymbol
{
if（[CPDTickerSymbolAAPL isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self monthlyAaplPrices];
}
else if（[CPDTickerSymbolGOOG isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self monthlyGoogPrices];
}
else if（[CPDTickerSymbolMSFT isEqualToString：[tickerSymbol uppercaseString]] == YES）
{
return [self monthlyMsftPrices];
}
return [NSArray array];
}
#pragma mark - 私人行为
- （NSArray *）weeklyAaplPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：571.70]，
[NSDecimalNumber numberWithFloat：560.28]，
[NSDecimalNumber numberWithFloat：610.00]，
[NSDecimalNumber numberWithFloat：607.70]，
[NSDecimalNumber numberWithFloat：603.00]，
nil];
}
返回价格;
}
- （NSArray *）weeklyGoogPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：597.60]，
[NSDecimalNumber numberWithFloat：601.27]，
[NSDecimalNumber numberWithFloat：609.72]，
[NSDecimalNumber numberWithFloat：615.47]，
[NSDecimalNumber numberWithFloat：614.98]，
nil];
}
返回价格;
}
- （NSArray *）weeklyMsftPrices
{
static NSArray * prices = nil;
if（！prices）
{
price = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：32.12]，
[NSDecimalNumber numberWithFloat：31.92]，
[NSDecimalNumber numberWithFloat：32.20]，
[NSDecimalNumber numberWithFloat：32.11]，
[NSDecimalNumber numberWithFloat：31.98]，
nil];
}
返回价格;
}
- （NSArray *）monthlyAaplPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：618.63]，
[NSDecimalNumber numberWithFloat：629.32]，
[NSDecimalNumber numberWithFloat：624.31]，
[NSDecimalNumber numberWithFloat：633.68]，
[NSDecimalNumber numberWithFloat：636.23]，
[NSDecimalNumber numberWithFloat：628.44]，
[NSDecimalNumber numberWithFloat：626.20] ，
[NSDecimalNumber numberWithFloat：622.77]，
[NSDecimalNumber numberWithFloat：605.23]，
[NSDecimalNumber numberWithFloat：580.13]，
[NSDecimalNumber numberWithFloat：609.70] NSDecimalNumber numberWithFloat：571.70]，
[NSDecimalNumber numberWithFloat：572.98]，
[NSDecimalNumber numberWithFloat：571.70]，
[NSDecimalNumber numberWithFloat：
[NSDecimalNumber numberWithFloat：610.00]，
[NSDecimalNumber numberWithFloat：607.70]，
[NSDecimalNumber numberWithFloat：603.00]，
[NSDecimalNumber numberWithFloat：583.98]，
nil] ;
}
返回价格;
}
- （NSArray *）monthlyGoogPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：646.92]，
[NSDecimalNumber numberWithFloat：642.62]，
[NSDecimalNumber numberWithFloat：635.15]，
[NSDecimalNumber numberWithFloat：632.32]，
[NSDecimalNumber numberWithFloat：630.84]，
[NSDecimalNumber numberWithFloat：626.86]，
[NSDecimalNumber numberWithFloat：635.96] ，
[NSDecimalNumber numberWithFloat：659.01]，
[NSDecimalNumber numberWithFloat：624.60]，
[NSDecimalNumber numberWithFloat：606.07]，
[NSDecimalNumber numberWithFloat：609.57] NSDecimalNumber numberWithFloat：607.45]，
[NSDecimalNumber numberWithFloat：599.30]，
[NSDecimalNumber numberWithFloat：596.06]，
[NSDecimalNumber numberWithFloat：597.60]
[NSDecimalNumber numberWithFloat：604.75]，
[NSDecimalNumber numberWithFloat：615.47]，
[NSDecimalNumber numberWithFloat：614.98]，
[NSDecimalNumber numberWithFloat：604.85]，
nil] ;
}
返回价格;
}
- （NSArray *）monthlyMsftPrices
{
static NSArray * prices = nil;
if（！prices）
{
prices = [NSArray arrayWithObjects：
[NSDecimalNumber numberWithFloat：32.29]，
[NSDecimalNumber numberWithFloat：31.94]，
NSDecimalNumber numberWithFloat：31.52]，
[NSDecimalNumber numberWithFloat：31.10]，
[NSDecimalNumber numberWithFloat：30.47]，
[NSDecimalNumber numberWithFloat：30.35] ，
[NSDecimalNumber numberWithFloat：30.98]，
[NSDecimalNumber numberWithFloat：30.81]，
[NSDecimalNumber numberWithFloat：31.08]，
[NSDecimalNumber numberWithFloat：31.44] NSDecimalNumber numberWithFloat：31.14]，
[NSDecimalNumber numberWithFloat：31.01]，
[NSDecimalNumber numberWithFloat：32.42]，
[NSDecimalNumber numberWithFloat：32.12]，
[NSDecimalNumber numberWithFloat：31.92]
[NSDecimalNumber numberWithFloat：32.20]，
[NSDecimalNumber numberWithFloat：32.11]，
[NSDecimalNumber numberWithFloat：31.98]，
[NSDecimalNumber numberWithFloat：32.02]，
nil] ;
}
返回价格;
}
@end
#importCPDBarGraphViewController.h
@interface CPDBarGraphViewController（）
@property（nonatomic，strong）IBOutlet CPTGraphHostingView * hostView;
@property（nonatomic，strong）CPTBarPlot * aaplPlot;
@property（nonatomic，strong）CPTBarPlot * googPlot;
@property（nonatomic，strong）CPTBarPlot * msftPlot;
@property（nonatomic，strong）CPTPlotSpaceAnnotation * priceAnnotation;
- （IBAction）aaplSwitched：（id）sender;
- （IBAction）googSwitched：（id）sender;
- （IBAction）msftSwitched：（id）sender;
- （void）initPlot;
- （void）configureGraph;
- （void）configurePlots;
- （void）configureAxes;
- （void）hideAnnotation：（CPTGraph *）graph;
@end
@implementation CPDBarGraphViewController
CGFloat const CPDBarWidth = 0.25f;
CGFloat const CPDBarInitialX = 0.25f;
@synthesize hostView = hostView_;
@synthesize aaplPlot = aaplPlot_;
@synthesize googPlot = googPlot_;
@synthesize msftPlot = msftPlot_;
@synthesize priceAnnotation = priceAnnotation_;
#pragma mark - 旋转
- （BOOL）shouldAutorotateToInterfaceOrientation：（UIInterfaceOrientation）interfaceOrientation {
return（interfaceOrientation == UIInterfaceOrientationLandscapeLeft）;
}
#pragma mark - UIViewController生命周期方法
- （void）viewDidLoad {
[super viewDidLoad];
[self initPlot];
}
#pragma mark - 图表行为
- （void）initPlot {
self.hostView.allowPinchScaling = NO;
[self configureGraph];
[self configurePlots];
[self configureAxes];
}
- （void）configureGraph {
// 1 - 创建图形
CPTGraph * graph = [[CPTXYGraph alloc] initWithFrame：self.hostView.bounds ];
graph.plotAreaFrame.masksToBorder = NO;
self.hostView.hostedGraph = graph;
// 2 - 配置图
[graph applyTheme：[CPTTheme themeNamed：kCPTPlainBlackTheme]];
graph.paddingBottom = 30.0f;
graph.paddingLeft = 30.0f
graph.paddingTop = -1.0f;
graph.paddingRight = -5.0f;
// 3 - 设置样式
CPTMutableTextStyle * titleStyle = [CPTMutableTextStyle textStyle];
titleStyle.color = [CPTColor whiteColor];
titleStyle.fontName = @Helvetica-Bold;
titleStyle.fontSize = 16.0f;
// 4 - 设置标题
NSString * title = @投资组合价格：2012年4月23日 - 27日;
graph.title = title;
graph.titleTextStyle = titleStyle;
graph.titlePlotAreaFrameAnchor = CPTRectAnchorTop;
graph.titleDisplacement = CGPointMake（0.0f，-16.0f）;
// 5 - 设置绘图空间
CGFloat xMin = 0.0f;
CGFloat xMax = [[[CPDStockPriceStore sharedInstance] datesInWeek] count];
CGFloat yMin = 0.0f;
CGFloat yMax = 800.0f; //应该根据最大价格动态确定
CPTXYPlotSpace * plotSpace =（CPTXYPlotSpace *）graph.defaultPlotSpace;
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation：CPTDecimalFromFloat（xMin）length：CPTDecimalFromFloat（xMax）];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation：CPTDecimalFromFloat（yMin）length：CPTDecimalFromFloat（yMax）];
}
- （void）configurePlots {
// 1 - 设置三个绘图
self.aaplPlot = [CPTBarPlot tubularBarPlotWithColor：[CPTColor redColor] horizontalBars：没有];
self.aaplPlot.identifier = CPDTickerSymbolAAPL;
self.googPlot = [CPTBarPlot tubularBarPlotWithColor：[CPTColor greenColor] horizontalBars：NO];
self.googPlot.identifier = CPDTickerSymbolGOOG;
self.msftPlot = [CPTBarPlot tubularBarPlotWithColor：[CPTColor blueColor] horizontalBars：NO];
self.msftPlot.identifier = CPDTickerSymbolMSFT;
// 2 - 设置行样式
CPTMutableLineStyle * barLineStyle = [[CPTMutableLineStyle alloc] init];
barLineStyle.lineColor = [CPTColor lightGrayColor];
barLineStyle.lineWidth = 0.5;
// 3 - 添加图到图
CPTGraph * graph = self.hostView.hostedGraph;
CGFloat barX = CPDBarInitialX;
NSArray * plots = [NSArray arrayWithObjects：self.aaplPlot，self.googPlot，self.msftPlot，nil];
for（CPTBarPlot * plot in plots）{
plot.dataSource = self;
plot.delegate = self;
plot.barWidth = CPTDecimalFromDouble（CPDBarWidth）;
plot.barOffset = CPTDecimalFromDouble（barX）;
plot.lineStyle = barLineStyle;
[graph addPlot：plot toPlotSpace：graph.defaultPlotSpace];
barX + = CPDBarWidth;
}
}
- （void）configureAxes {
// 1 - 配置样式
CPTMutableTextStyle * axisTitleStyle = [CPTMutableTextStyle textStyle];
axisTitleStyle.color = [CPTColor whiteColor];
axisTitleStyle.fontName = @Helvetica-Bold;
axisTitleStyle.fontSize = 12.0f;
CPTMutableLineStyle * axisLineStyle = [CPTMutableLineStyle lineStyle];
轴LineLtyStyle.lineWidth = 2.0f;
axisLineStyle.lineColor = [[CPTColor whiteColor] colorWithAlphaComponent：1];
// 2 - 获取图形的轴集
CPTXYAxisSet * axisSet =（CPTXYAxisSet *）self.hostView.hostedGraph.axisSet;
// 3 - 配置x轴
axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
axisSet.xAxis.title = @星期几（星期一至星期五）;
axisSet.xAxis.titleTextStyle = axisTitleStyle;
axisSet.xAxis.titleOffset = 10.0f;
axisSet.xAxis.axisLineStyle = axisLineStyle;
// 4 - 配置y轴
axisSet.yAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
axisSet.yAxis.title = @Price;
axisSet.yAxis.titleTextStyle = axisTitleStyle;
axisSet.yAxis.titleOffset = 5.0f;
axisSet.yAxis.axisLineStyle = axisLineStyle;
}
- （void）hideAnnotation：（CPTGraph *）graph {
if（（graph.plotAreaFrame.plotArea）&&（self.priceAnnotation））{
[graph.plotAreaFrame.plotArea removeAnnotation：self.priceAnnotation];
self.priceAnnotation = nil;
}
}
#pragma mark - CPTPlotDataSource方法
- （NSUInteger）numberOfRecordsForPlot：（CPTPlot *）plot {
return [[[CPDStockPriceStore sharedInstance ] datesInWeek] count];
}
- （NSNumber *）numberForPlot：（CPTPlot *）plot field：（NSUInteger）fieldEnum recordIndex：（NSUInteger）index {
if（（fieldEnum == CPTBarPlotFieldBarTip） &&&&&&&&&&&&&" [index]< / [index [< / pt] CPDTickerSymbolAAPL] objectAtIndex：index];
}}
return [NSDecimalNumber numberWithUnsignedInteger：index];
}
#pragma mark - CPTBarPlotDelegate方法
- （void）barPlot：（CPTBarPlot *）plot barWasSelectedAtRecordIndex：（NSUInteger）index {
NSLog （@barWasSelectedAtRecordIndex％d，index）;
}
@end
解决方案>
这里有其他教学这可能会帮助你。
检查3.图形的布局，第24行。他动态地创建Y轴，但这一切都取决于你如何制作数据源。
希望它清除：）
how to have dynamic data in x-axis/y-axis in coreplot iOS :Currently using the demo code here:Below every column I need year on x-axis which itself is dynamic and y axis revenue amount .How do I do that dynamically?
//
// CPDStockPriceStore.m
// CorePlotDemo
//
// NB: Price data obtained from Yahoo! Finance:
// http://finance.yahoo.com/q/hp?s=AAPL
// http://finance.yahoo.com/q/hp?s=GOOG
// http://finance.yahoo.com/q/hp?s=MSFT
//
// Created by Steve Baranski on 5/4/12.
// Copyright (c) 2012 komorka technology, llc. All rights reserved.
//
#import "CPDStockPriceStore.h"
@interface CPDStockPriceStore ()
@end
@implementation CPDStockPriceStore
#pragma mark - Class methods
+ (CPDStockPriceStore *)sharedInstance
{
static CPDStockPriceStore *sharedInstance;
static dispatch_once_t once;
dispatch_once(&once, ^{
sharedInstance = [[self alloc] init];
});
return sharedInstance;
}
#pragma mark - API methods
- (NSArray *)tickerSymbols
{
static NSArray *symbols = nil;
if (!symbols)
{
symbols = [NSArray arrayWithObjects:
@"AAPL",
@"GOOG",
@"MSFT",
nil];
}
return symbols;
}
- (NSArray *)dailyPortfolioPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:582.13],
[NSDecimalNumber numberWithFloat:604.43],
[NSDecimalNumber numberWithFloat:32.01],
nil];
}
return prices;
}
- (NSArray *)datesInWeek
{
static NSArray *dates = nil;
if (!dates)
{
dates = [NSArray arrayWithObjects:
@"4/23",
@"4/24",
@"4/25",
@"4/26",
@"4/27",
nil];
}
return dates;
}
- (NSArray *)weeklyPrices:(NSString *)tickerSymbol
{
if ([CPDTickerSymbolAAPL isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self weeklyAaplPrices];
}
else if ([CPDTickerSymbolGOOG isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self weeklyGoogPrices];
}
else if ([CPDTickerSymbolMSFT isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self weeklyMsftPrices];
}
return [NSArray array];
}
- (NSArray *)datesInMonth
{
static NSArray *dates = nil;
if (!dates)
{
dates = [NSArray arrayWithObjects:
@"2",
@"3",
@"4",
@"5",
@"9",
@"10",
@"11",
@"12",
@"13",
@"16",
@"17",
@"18",
@"19",
@"20",
@"23",
@"24",
@"25",
@"26",
@"27",
@"30",
nil];
}
return dates;
}
- (NSArray *)monthlyPrices:(NSString *)tickerSymbol
{
if ([CPDTickerSymbolAAPL isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self monthlyAaplPrices];
}
else if ([CPDTickerSymbolGOOG isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self monthlyGoogPrices];
}
else if ([CPDTickerSymbolMSFT isEqualToString:[tickerSymbol uppercaseString]] == YES)
{
return [self monthlyMsftPrices];
}
return [NSArray array];
}
#pragma mark - Private behavior
- (NSArray *)weeklyAaplPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:571.70],
[NSDecimalNumber numberWithFloat:560.28],
[NSDecimalNumber numberWithFloat:610.00],
[NSDecimalNumber numberWithFloat:607.70],
[NSDecimalNumber numberWithFloat:603.00],
nil];
}
return prices;
}
- (NSArray *)weeklyGoogPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:597.60],
[NSDecimalNumber numberWithFloat:601.27],
[NSDecimalNumber numberWithFloat:609.72],
[NSDecimalNumber numberWithFloat:615.47],
[NSDecimalNumber numberWithFloat:614.98],
nil];
}
return prices;
}
- (NSArray *)weeklyMsftPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:32.12],
[NSDecimalNumber numberWithFloat:31.92],
[NSDecimalNumber numberWithFloat:32.20],
[NSDecimalNumber numberWithFloat:32.11],
[NSDecimalNumber numberWithFloat:31.98],
nil];
}
return prices;
}
- (NSArray *)monthlyAaplPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:618.63],
[NSDecimalNumber numberWithFloat:629.32],
[NSDecimalNumber numberWithFloat:624.31],
[NSDecimalNumber numberWithFloat:633.68],
[NSDecimalNumber numberWithFloat:636.23],
[NSDecimalNumber numberWithFloat:628.44],
[NSDecimalNumber numberWithFloat:626.20],
[NSDecimalNumber numberWithFloat:622.77],
[NSDecimalNumber numberWithFloat:605.23],
[NSDecimalNumber numberWithFloat:580.13],
[NSDecimalNumber numberWithFloat:609.70],
[NSDecimalNumber numberWithFloat:608.34],
[NSDecimalNumber numberWithFloat:587.44],
[NSDecimalNumber numberWithFloat:572.98],
[NSDecimalNumber numberWithFloat:571.70],
[NSDecimalNumber numberWithFloat:560.28],
[NSDecimalNumber numberWithFloat:610.00],
[NSDecimalNumber numberWithFloat:607.70],
[NSDecimalNumber numberWithFloat:603.00],
[NSDecimalNumber numberWithFloat:583.98],
nil];
}
return prices;
}
- (NSArray *)monthlyGoogPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:646.92],
[NSDecimalNumber numberWithFloat:642.62],
[NSDecimalNumber numberWithFloat:635.15],
[NSDecimalNumber numberWithFloat:632.32],
[NSDecimalNumber numberWithFloat:630.84],
[NSDecimalNumber numberWithFloat:626.86],
[NSDecimalNumber numberWithFloat:635.96],
[NSDecimalNumber numberWithFloat:651.01],
[NSDecimalNumber numberWithFloat:624.60],
[NSDecimalNumber numberWithFloat:606.07],
[NSDecimalNumber numberWithFloat:609.57],
[NSDecimalNumber numberWithFloat:607.45],
[NSDecimalNumber numberWithFloat:599.30],
[NSDecimalNumber numberWithFloat:596.06],
[NSDecimalNumber numberWithFloat:597.60],
[NSDecimalNumber numberWithFloat:601.27],
[NSDecimalNumber numberWithFloat:609.72],
[NSDecimalNumber numberWithFloat:615.47],
[NSDecimalNumber numberWithFloat:614.98],
[NSDecimalNumber numberWithFloat:604.85],
nil];
}
return prices;
}
- (NSArray *)monthlyMsftPrices
{
static NSArray *prices = nil;
if (!prices)
{
prices = [NSArray arrayWithObjects:
[NSDecimalNumber numberWithFloat:32.29],
[NSDecimalNumber numberWithFloat:31.94],
[NSDecimalNumber numberWithFloat:31.21],
[NSDecimalNumber numberWithFloat:31.52],
[NSDecimalNumber numberWithFloat:31.10],
[NSDecimalNumber numberWithFloat:30.47],
[NSDecimalNumber numberWithFloat:30.35],
[NSDecimalNumber numberWithFloat:30.98],
[NSDecimalNumber numberWithFloat:30.81],
[NSDecimalNumber numberWithFloat:31.08],
[NSDecimalNumber numberWithFloat:31.44],
[NSDecimalNumber numberWithFloat:31.14],
[NSDecimalNumber numberWithFloat:31.01],
[NSDecimalNumber numberWithFloat:32.42],
[NSDecimalNumber numberWithFloat:32.12],
[NSDecimalNumber numberWithFloat:31.92],
[NSDecimalNumber numberWithFloat:32.20],
[NSDecimalNumber numberWithFloat:32.11],
[NSDecimalNumber numberWithFloat:31.98],
[NSDecimalNumber numberWithFloat:32.02],
nil];
}
return prices;
}
@end
#import "CPDBarGraphViewController.h"
@interface CPDBarGraphViewController ()
@property (nonatomic, strong) IBOutlet CPTGraphHostingView *hostView;
@property (nonatomic, strong) CPTBarPlot *aaplPlot;
@property (nonatomic, strong) CPTBarPlot *googPlot;
@property (nonatomic, strong) CPTBarPlot *msftPlot;
@property (nonatomic, strong) CPTPlotSpaceAnnotation *priceAnnotation;
-(IBAction)aaplSwitched:(id)sender;
-(IBAction)googSwitched:(id)sender;
-(IBAction)msftSwitched:(id)sender;
-(void)initPlot;
-(void)configureGraph;
-(void)configurePlots;
-(void)configureAxes;
-(void)hideAnnotation:(CPTGraph *)graph;
@end
@implementation CPDBarGraphViewController
CGFloat const CPDBarWidth = 0.25f;
CGFloat const CPDBarInitialX = 0.25f;
@synthesize hostView = hostView_;
@synthesize aaplPlot = aaplPlot_;
@synthesize googPlot = googPlot_;
@synthesize msftPlot = msftPlot_;
@synthesize priceAnnotation = priceAnnotation_;
#pragma mark - Rotation
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}
#pragma mark - UIViewController lifecycle methods
-(void)viewDidLoad {
[super viewDidLoad];
[self initPlot];
}
#pragma mark - Chart behavior
-(void)initPlot {
self.hostView.allowPinchScaling = NO;
[self configureGraph];
[self configurePlots];
[self configureAxes];
}
-(void)configureGraph {
// 1 - Create the graph
CPTGraph *graph = [[CPTXYGraph alloc] initWithFrame:self.hostView.bounds];
graph.plotAreaFrame.masksToBorder = NO;
self.hostView.hostedGraph = graph;
// 2 - Configure the graph
[graph applyTheme:[CPTTheme themeNamed:kCPTPlainBlackTheme]];
graph.paddingBottom = 30.0f;
graph.paddingLeft = 30.0f;
graph.paddingTop = -1.0f;
graph.paddingRight = -5.0f;
// 3 - Set up styles
CPTMutableTextStyle *titleStyle = [CPTMutableTextStyle textStyle];
titleStyle.color = [CPTColor whiteColor];
titleStyle.fontName = @"Helvetica-Bold";
titleStyle.fontSize = 16.0f;
// 4 - Set up title
NSString *title = @"Portfolio Prices: April 23 - 27, 2012";
graph.title = title;
graph.titleTextStyle = titleStyle;
graph.titlePlotAreaFrameAnchor = CPTRectAnchorTop;
graph.titleDisplacement = CGPointMake(0.0f, -16.0f);
// 5 - Set up plot space
CGFloat xMin = 0.0f;
CGFloat xMax = [[[CPDStockPriceStore sharedInstance] datesInWeek] count];
CGFloat yMin = 0.0f;
CGFloat yMax = 800.0f; // should determine dynamically based on max price
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *) graph.defaultPlotSpace;
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(xMin) length:CPTDecimalFromFloat(xMax)];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(yMin) length:CPTDecimalFromFloat(yMax)];
}
-(void)configurePlots {
// 1 - Set up the three plots
self.aaplPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor redColor] horizontalBars:NO];
self.aaplPlot.identifier = CPDTickerSymbolAAPL;
self.googPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor greenColor] horizontalBars:NO];
self.googPlot.identifier = CPDTickerSymbolGOOG;
self.msftPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor] horizontalBars:NO];
self.msftPlot.identifier = CPDTickerSymbolMSFT;
// 2 - Set up line style
CPTMutableLineStyle *barLineStyle = [[CPTMutableLineStyle alloc] init];
barLineStyle.lineColor = [CPTColor lightGrayColor];
barLineStyle.lineWidth = 0.5;
// 3 - Add plots to graph
CPTGraph *graph = self.hostView.hostedGraph;
CGFloat barX = CPDBarInitialX;
NSArray *plots = [NSArray arrayWithObjects:self.aaplPlot, self.googPlot, self.msftPlot, nil];
for (CPTBarPlot *plot in plots) {
plot.dataSource = self;
plot.delegate = self;
plot.barWidth = CPTDecimalFromDouble(CPDBarWidth);
plot.barOffset = CPTDecimalFromDouble(barX);
plot.lineStyle = barLineStyle;
[graph addPlot:plot toPlotSpace:graph.defaultPlotSpace];
barX += CPDBarWidth;
}
}
-(void)configureAxes {
// 1 - Configure styles
CPTMutableTextStyle *axisTitleStyle = [CPTMutableTextStyle textStyle];
axisTitleStyle.color = [CPTColor whiteColor];
axisTitleStyle.fontName = @"Helvetica-Bold";
axisTitleStyle.fontSize = 12.0f;
CPTMutableLineStyle *axisLineStyle = [CPTMutableLineStyle lineStyle];
axisLineStyle.lineWidth = 2.0f;
axisLineStyle.lineColor = [[CPTColor whiteColor] colorWithAlphaComponent:1];
// 2 - Get the graph's axis set
CPTXYAxisSet *axisSet = (CPTXYAxisSet *) self.hostView.hostedGraph.axisSet;
// 3 - Configure the x-axis
axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
axisSet.xAxis.title = @"Days of Week (Mon - Fri)";
axisSet.xAxis.titleTextStyle = axisTitleStyle;
axisSet.xAxis.titleOffset = 10.0f;
axisSet.xAxis.axisLineStyle = axisLineStyle;
// 4 - Configure the y-axis
axisSet.yAxis.labelingPolicy = CPTAxisLabelingPolicyNone;
axisSet.yAxis.title = @"Price";
axisSet.yAxis.titleTextStyle = axisTitleStyle;
axisSet.yAxis.titleOffset = 5.0f;
axisSet.yAxis.axisLineStyle = axisLineStyle;
}
-(void)hideAnnotation:(CPTGraph *)graph {
if ((graph.plotAreaFrame.plotArea) && (self.priceAnnotation)) {
[graph.plotAreaFrame.plotArea removeAnnotation:self.priceAnnotation];
self.priceAnnotation = nil;
}
}
#pragma mark - CPTPlotDataSource methods
-(NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot {
return [[[CPDStockPriceStore sharedInstance] datesInWeek] count];
}
-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index {
if ((fieldEnum == CPTBarPlotFieldBarTip) && (index < [[[CPDStockPriceStore sharedInstance] datesInWeek] count])) {
if ([plot.identifier isEqual:CPDTickerSymbolAAPL]) {
return [[[CPDStockPriceStore sharedInstance] weeklyPrices:CPDTickerSymbolAAPL] objectAtIndex:index];
} }
return [NSDecimalNumber numberWithUnsignedInteger:index];
}
#pragma mark - CPTBarPlotDelegate methods
-(void)barPlot:(CPTBarPlot *)plot barWasSelectedAtRecordIndex:(NSUInteger)index {
NSLog(@"barWasSelectedAtRecordIndex %d", index);
}
@end
解决方案
There is another tutorial here that might help you.
Check 3. Layout of the graph, line 24. There he makes the Y axis dynamically, but it all depends how you make your datasource.
Hope it clears up :)
这篇关于在x轴和y轴上的coreplot iOS中的动态数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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