Диаграмма рассеяния с Xcode для данных iPhone не синхронизируется с осью, а основная толстая не показана
Я новичок в Stackru и Xcode для iPhone. Английский не мой родной язык, поэтому, пожалуйста, потерпите меня. Я пытался сделать график между датами (ось х) и значением экономии топлива (ось у).
Я использую основной сюжет 1.4. Моя проблема:
- Данные как-то не синхронизируются напрямую по оси х.
- Основной контрольный список как-то не отображается. (Решена)
- Есть ли способ сделать так, чтобы на графике была показана только ось позитива? (Решена)
Я делаю много NSLog для отладки данных. Я ищу в Google (включая этот сайт) учебник о том, как использовать пользовательский ярлык и как составить точечный график.
У меня есть следующие данные:
(
{
0 = "31-Jan-2014";
1 = 10;
},
{
0 = "02-Feb-2014";
1 = "10.07";
},
{
0 = "24-Feb-2014";
1 = "8.75";
}
)
У меня странный результат с приведенными выше данными. Пожалуйста, смотрите включенный график, это изображение моего графика:
на графике данные y не отображаются на оси x.
вот соответствующий код
- (NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot
{
NSLog(@"Number of Records for Plot = %lu",(unsigned long)[self.plotData count]);
return [_plotData count];
}
- (NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx
{
//NSDecimalNumber *result = [[_plotData objectAtIndex:idx]objectForKey:[NSNumber numberWithInt:fieldEnum]];
NSNumber *result;
switch (fieldEnum) {
case CPTScatterPlotFieldX:
// NSDate * observationDate = [[_plotData objectAtIndex:idx]objectForKey:[NSNumber numberWithInt:fieldEnum]];
// NSTimeInterval secondsSince1970 = [_observationDate timeIntervalSince1970];
result = [[_plotData objectAtIndex:idx]objectForKey:[NSNumber numberWithInt:fieldEnum]];
break;
case CPTScatterPlotFieldY:
result = [[_plotData objectAtIndex:idx] objectForKey:[NSNumber numberWithInt:fieldEnum]];
}
//result = [[_plotData objectAtIndex:idx] objectForKey:[NSNumber numberWithInt:fieldEnum]];
NSLog(@"Number tobe Plot with index = %@ %lu, %lu",result,(unsigned long)idx,(unsigned long)fieldEnum);
return result;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self initPlot];
// Do any additional setup after loading the view.
}
- (void)initPlot
{
//NSDate *refDate = [NSDate dateWithNaturalLanguageString:@"12:00 Oct 29, 2009"];
[self fetchResultOneWeek];
[self configureHost];
[self configureFEGraph];
[self configurePlots];
[self configureAxis];
}
- (void)configureHost
{
CGRect frame1 = CGRectMake(0,80,320,200);
FESubView = [[CPTGraphHostingView alloc]initWithFrame:frame1];
FESubView.allowPinchScaling = YES;
[self.view addSubview:FESubView];
CGRect frame2 = CGRectMake(0,410,320,400);
GasPriceSubView = [[CPTGraphHostingView alloc]initWithFrame:frame2];
GasPriceSubView.allowPinchScaling = YES;
[self.view addSubview:GasPriceSubView];
}
- (void)configureFEGraph
{
CPTGraph *graph = [[CPTXYGraph alloc]initWithFrame:FESubView.bounds];
[graph applyTheme:[CPTTheme themeNamed:kCPTStocksTheme]];
FESubView.hostedGraph = graph;
graph.title = @"Fuel Economy Graph";
CPTMutableTextStyle *titleStyle = [CPTMutableTextStyle textStyle];
titleStyle.color = [CPTColor whiteColor];
titleStyle.fontName = @"Helvetica-Bold";
titleStyle.fontSize = 14.0f;
graph.titleTextStyle = titleStyle;
graph.titlePlotAreaFrameAnchor = CPTRectAnchorTop;
graph.titleDisplacement = CGPointMake(0.0f, 10.0f);
// 4 - Set padding for plot area
[graph.plotAreaFrame setPaddingLeft:10.0f];
[graph.plotAreaFrame setPaddingBottom:10.0f];
[graph.plotAreaFrame setPaddingTop:10.0f];
[graph.plotAreaFrame setPaddingRight:10.0f];
// 5 - Enable user interactions for plot space
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *) graph.defaultPlotSpace;
plotSpace.allowsUserInteraction = YES;
}
- (void)configurePlots
{
NSMutableArray *dataTobePlotted = [NSMutableArray array];
NSUInteger i;
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"dd-MMM-YYY"];
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"GMT+0:07"]];
//NSTimeInterval oneDay = 24 * 60 * 60;
for (i = 0;i < [[self.fullTransaction valueForKey:@"tDate"]count]; i++)
{
NSDate *observationDate = [[self.fullTransaction valueForKey:@"tDate"]objectAtIndex:i];
NSLog(@"observationDate is : %@",observationDate);
NSTimeInterval x = [observationDate timeIntervalSince1970];
NSLog(@"x is : %f",x);
id y = [[self.fullTransaction valueForKey:@"tFuelEconomy"]objectAtIndex:i];
NSLog(@"y is : %@",y);
[dataTobePlotted addObject:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithDouble:x],[NSNumber numberWithInt:CPTScatterPlotFieldX],y,[NSNumber numberWithInt:CPTScatterPlotFieldY],nil]];
//[dataTobePlotted addObject:[NSDictionary dictionaryWithObjectsAndKeys:[NSDecimalNumber numberWithFloat:x],[NSNumber numberWithInt:CPTScatterPlotFieldX],y,[NSNumber numberWithInt:CPTScatterPlotFieldY],nil]];
NSLog(@" int X is %@",[NSNumber numberWithInt:CPTScatterPlotFieldX]);
NSLog(@" int Y is %@",[NSNumber numberWithInt:CPTScatterPlotFieldY]);
NSLog(@"ScatterPlotField X is %@",[NSNumber numberWithInt:CPTScatterPlotFieldX]);
NSLog(@"ScatterPlotField Y is %@",[NSNumber numberWithInt:CPTScatterPlotFieldY]);
NSLog(@"Data to be Plotted: %@",dataTobePlotted);
}
self.plotData = dataTobePlotted;
CPTGraph *graph = FESubView.hostedGraph;
[graph applyTheme:[CPTTheme themeNamed:kCPTStocksTheme]];
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace;
//create plot
CPTScatterPlot *fePlot = [[CPTScatterPlot alloc]init];
fePlot.dataSource = self;
CPTColor *feColor = [CPTColor greenColor];
[graph addPlot:fePlot];
//setup plot space
[plotSpace scaleToFitPlots:[NSArray arrayWithObjects: fePlot,Nil]];
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"3.0") length:CPTDecimalFromString(@"10.0")];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"8.0") length:CPTDecimalFromString(@"2.0")];
//set up plot space
//[plotSpace scaleToFitPlots:[NSArray arrayWithObjects:fePlot,nil]];
CPTMutablePlotRange *xRange = [plotSpace.xRange mutableCopy];
[xRange expandRangeByFactor:CPTDecimalFromCGFloat(2.0f)];
plotSpace.xRange = xRange;
CPTMutablePlotRange *yRange = [plotSpace.yRange mutableCopy];
[yRange expandRangeByFactor:CPTDecimalFromCGFloat(5.0f)];
plotSpace.yRange = yRange;
// //create styles and symbols
CPTMutableLineStyle *feLineStyle = [fePlot.dataLineStyle mutableCopy];
CPTColor *areaColor = [CPTColor colorWithComponentRed:0.3 green:1.0 blue:0.3 alpha:0.3];
CPTGradient *areaGradient = [CPTGradient gradientWithBeginningColor:areaColor endingColor:[CPTColor clearColor]];
areaGradient.angle = -90.0f;
CPTFill *areaGradientFill = [CPTFill fillWithGradient:areaGradient];
fePlot.areaFill = areaGradientFill;
feLineStyle.lineWidth = 2.5;
feLineStyle.lineColor = feColor;
fePlot.dataLineStyle = feLineStyle;
CPTMutableLineStyle *feSymbolLineStyle = [CPTMutableLineStyle lineStyle];
feSymbolLineStyle.lineColor = feColor;
CPTPlotSymbol *feSymbol = [CPTPlotSymbol ellipsePlotSymbol];
feSymbol.fill = [CPTFill fillWithColor:feColor];
feSymbol.lineStyle = feSymbolLineStyle;
feSymbol.size = CGSizeMake(6.0f, 6.0f);
fePlot.plotSymbol = feSymbol;
}
- (void)configureAxis
{
// 1 - Create styles
// 2 - Get axis set
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];
CPTMutableTextStyle *axisTextStyle = [[CPTMutableTextStyle alloc] init];
axisTextStyle.color = [CPTColor whiteColor];
axisTextStyle.fontName = @"Helvetica-Bold";
axisTextStyle.fontSize = 11.0f;
CPTMutableLineStyle *tickLineStyle = [CPTMutableLineStyle lineStyle];
tickLineStyle.lineColor = [CPTColor whiteColor];
tickLineStyle.lineWidth = 2.0f;
CPTMutableLineStyle *gridLineStyle = [CPTMutableLineStyle lineStyle];
tickLineStyle.lineColor = [CPTColor blackColor];
tickLineStyle.lineWidth = 1.0f;
CPTMutableTextStyle *labelXTextStyle = [CPTMutableTextStyle textStyle];
labelXTextStyle.fontName = @"Helvetica";
labelXTextStyle.fontSize = 10;
labelXTextStyle.color = [CPTColor whiteColor];
// 2 - Get Axis Set
CPTXYAxisSet *axisSet = (CPTXYAxisSet *) FESubView.hostedGraph.axisSet;
// 3 Configure x-Axis
CPTXYAxis *x = axisSet.xAxis;
x.orthogonalCoordinateDecimal = CPTDecimalFromString(@"4");
x.title = @"Date";
x.titleTextStyle = axisTitleStyle;
x.titleOffset = 47.0f;
//x.title = @"Date";
x.minorTicksPerInterval = 0;
x.majorTickLength = 10.0f;
x.tickDirection = CPTSignPositive;
//NSArray *customTickLocations = [NSArray arrayWithObjects:[NSDecimalNumber numberWithInt:5], [NSDecimalNumber numberWithInt:10], [NSDecimalNumber numberWithInt:10], [NSDecimalNumber numberWithInt:15],
// [NSDecimalNumber numberWithInt:20], [NSDecimalNumber numberWithInt:25],[NSDecimalNumber numberWithInt:30],nil];
NSInteger i;
NSMutableArray *customTickLocations = [NSMutableArray array];
for (i = 0; i < [[self.fullTransaction valueForKey:@"tDate"]count];i++)
{
[customTickLocations addObject:[NSDecimalNumber numberWithInt:((i+1)*5)]];
}
CPTPlotRange *xAxisRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0.0") length:CPTDecimalFromString(@"24.0")];
x.visibleRange=xAxisRange;
NSLog(@"dates are %@", [self.fullTransaction valueForKey:@"tDate"]);
NSLog(@"Transaction FE %@", [self.fullTransaction valueForKey:@"tFuelEconomy"]);
NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[self.plotData count]];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"dd-MMM-YYY"];
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"GMT+0:07"]];
NSMutableSet *xLocations = [NSMutableSet setWithCapacity:[[self.fullTransaction valueForKey:@"tDate"]count]];
x.labelingPolicy=CPTAxisLabelingPolicyNone;
x.majorIntervalLength = [[NSDecimalNumber decimalNumberWithString:@"1"] decimalValue];
NSInteger location;
for (location = 0; location < [[self.fullTransaction valueForKey:@"tDate"]count];location++)
{
CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText: [dateFormatter stringFromDate:[[self.fullTransaction valueForKey:@"tDate"] objectAtIndex:location]] textStyle:labelXTextStyle];
NSLog(@"Custom Labels = %@",newLabel);
NSLog(@"Real Date = %@",[[self.fullTransaction valueForKey:@"tDate"] objectAtIndex:location]);
NSLog(@"After assigned date = %@",[dateFormatter stringFromDate:[[self.fullTransaction valueForKey:@"tDate"] objectAtIndex:location]]);
newLabel.tickLocation = CPTDecimalFromInt([[customTickLocations objectAtIndex:location] integerValue]);
newLabel.offset = 2;
newLabel.rotation = (1*M_PI)/4;
[customLabels addObject:newLabel];
[xLocations addObject:[NSNumber numberWithInteger:[[customTickLocations objectAtIndex:location] integerValue]]];
}
x.axisLabels = [NSSet setWithArray:customLabels];
NSLog(@"Custom Labels = %@",customLabels);
x.majorTickLocations = xLocations;
//x.majorTickLocations = customTickLocations;
x.majorTickLength = 5.0f;
NSLog(@"Major TickLocations: %@",customTickLocations);
CPTXYAxis *y = axisSet.yAxis;
//y.orthogonalCoordinateDecimal = CPTDecimalFromCGFloat(0.0);
y.majorIntervalLength = CPTDecimalFromString(@"1.0");
y.minorTicksPerInterval = 5;
y.majorTickLength = 5.0f;
y.preferredNumberOfMajorTicks = 5;
y.labelTextStyle = labelXTextStyle;
}
Ниже приведен результат nslog для данных id x и id y
2014-02-25 16:09:01.855 Fuel Eco[12079:70b] x is : 31-Jan-2014
2014-02-25 16:09:01.855 Fuel Eco[12079:70b] y is : 10
2014-02-25 16:09:01.855 Fuel Eco[12079:70b] int X is 0
2014-02-25 16:09:01.856 Fuel Eco[12079:70b] int Y is 1
2014-02-25 16:09:01.856 Fuel Eco[12079:70b] ScatterPlotField X is 0
2014-02-25 16:09:01.856 Fuel Eco[12079:70b] ScatterPlotField Y is 1
2014-02-25 16:09:01.857 Fuel Eco[12079:70b] Data to be Plotted: (
{
0 = "31-Jan-2014";
1 = 10;
}
)
2014-02-25 16:09:01.857 Fuel Eco[12079:70b] x is : 02-Feb-2014
2014-02-25 16:09:01.857 Fuel Eco[12079:70b] y is : 10.07
2014-02-25 16:09:01.858 Fuel Eco[12079:70b] int X is 0
2014-02-25 16:09:01.858 Fuel Eco[12079:70b] int Y is 1
2014-02-25 16:09:01.858 Fuel Eco[12079:70b] ScatterPlotField X is 0
2014-02-25 16:09:01.859 Fuel Eco[12079:70b] ScatterPlotField Y is 1
2014-02-25 16:09:01.859 Fuel Eco[12079:70b] Data to be Plotted: (
{
0 = "31-Jan-2014";
1 = 10;
},
{
0 = "02-Feb-2014";
1 = "10.07";
}
)
2014-02-25 16:09:01.859 Fuel Eco[12079:70b] x is : 24-Feb-2014
2014-02-25 16:09:01.860 Fuel Eco[12079:70b] y is : 8.75
2014-02-25 16:09:01.860 Fuel Eco[12079:70b] int X is 0
2014-02-25 16:09:01.860 Fuel Eco[12079:70b] int Y is 1
2014-02-25 16:09:01.861 Fuel Eco[12079:70b] ScatterPlotField X is 0
2014-02-25 16:09:01.861 Fuel Eco[12079:70b] ScatterPlotField Y is 1
2014-02-25 16:09:01.861 Fuel Eco[12079:70b] Data to be Plotted: (
{
0 = "31-Jan-2014";
1 = 10;
},
{
0 = "02-Feb-2014";
1 = "10.07";
},
{
0 = "24-Feb-2014";
1 = "8.75";
}
)
Ниже приведен результат nslog для отображения результата "- (NSNumber *)numberForPlot:(CPTPlot *) поле графика:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx" с данными,idx,fieldEnum.
2014-02-25 16:09:01.862 Fuel Eco[12079:70b] Number of Records for Plot = 3
2014-02-25 16:09:01.862 Fuel Eco[12079:70b] Number of Records for Plot = 3
2014-02-25 16:09:01.863 Fuel Eco[12079:70b] Number tobe Plot with index = 31-Jan-2014 0, 0
2014-02-25 16:09:01.863 Fuel Eco[12079:70b] Number tobe Plot with index = 02-Feb-2014 1, 0
2014-02-25 16:09:01.863 Fuel Eco[12079:70b] Number tobe Plot with index = 24-Feb-2014 2, 0
2014-02-25 16:09:01.864 Fuel Eco[12079:70b] Number of Records for Plot = 3
2014-02-25 16:09:01.864 Fuel Eco[12079:70b] Number tobe Plot with index = 10 0, 1
2014-02-25 16:09:01.864 Fuel Eco[12079:70b] Number tobe Plot with index = 10.07 1, 1
2014-02-25 16:09:01.865 Fuel Eco[12079:70b] Number tobe Plot with index = 8.75 2, 1
2014-02-25 16:09:01.865 Fuel Eco[12079:70b] Number of Records for Plot = 3
Спасибо всем
ОБНОВЛЕНИЕ *** Я переписал код, чтобы стать таким, и он работает:
-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index
{
switch (fieldEnum)
{
case CPTScatterPlotFieldX:
{
NSDecimalNumber *num = [[plotData objectAtIndex:index] objectForKey:[NSNumber numberWithInt:fieldEnum]];
return num;
}
case CPTScatterPlotFieldY:
{
if ([plot.identifier isEqual:@"Honda Plot"])
{
NSDecimalNumber *num = [[plotData1 objectAtIndex:index] objectForKey:[NSNumber numberWithInt:fieldEnum]];
return num;
}
else
{
NSDecimalNumber *num = [[plotData objectAtIndex:index] objectForKey:[NSNumber numberWithInt:fieldEnum]];
return num;
}
}
}
return nil;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self fetchResult];
[self filterarray];
[self filterArray1];
//CGRect frame1 = CGRectMake(0,200,300,600);
[self generateData];
//FESubView = [[CPTGraphHostingView alloc]initWithFrame:frame1];
[self renderInLayer:FESubView withTheme:Nil animated:NO];
}
-(void)generateData
{
if ( !plotData ) {
//const NSTimeInterval oneDay = 24 * 60 * 60 ;
gregorian = [self setCalendar];
NSDateComponents *dateComponents = [gregorian components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit ) fromDate:[[self.fullTransaction valueForKey:@"tDate" ] objectAtIndex:0]];
NSDate *refDate = [gregorian dateFromComponents:dateComponents];
NSDate *dataDate = [[NSDate alloc]init];
NSDateComponents *comps;
int days;
// Add some data
NSMutableArray *newData = [NSMutableArray array];
NSMutableArray *newData1 = [NSMutableArray array];
NSUInteger i;
for ( i = 0; i < [[self.fullTransaction valueForKey:@"tDate"]count]; i++ ) {
dataDate = [[self.fullTransaction valueForKey:@"tDate"]objectAtIndex:i];
NSLog(@"RefDate is: %@",refDate);
NSLog(@"DateDate is: %@",dataDate);
comps = [gregorian components:NSDayCalendarUnit fromDate:refDate toDate:dataDate options:0];
days = [comps day];
NSTimeInterval x = oneDay *days;
//id y = [[self.fullTransaction valueForKey:@"tFuelEconomy"]objectAtIndex:i];
int counts = [self.filteredTransaction count];
id y;
id z;
int count1 = [self.filteredTransaction1 count];
if (i < counts)
{
y = [[self.filteredTransaction valueForKey:@"tFuelEconomy"]objectAtIndex:i];
}else y = NULL;
if (i < count1)
{
z = [[self.filteredTransaction1 valueForKey:@"tFuelEconomy"]objectAtIndex:i];
}else z = NULL;
[newData addObject:
[NSDictionary dictionaryWithObjectsAndKeys:
[NSDecimalNumber numberWithFloat:x], [NSNumber numberWithInt:CPTScatterPlotFieldX],
y, [NSNumber numberWithInt:CPTScatterPlotFieldY],
nil]];
[newData1 addObject:
[NSDictionary dictionaryWithObjectsAndKeys:
[NSDecimalNumber numberWithFloat:x], [NSNumber numberWithInt:CPTScatterPlotFieldX],
z, [NSNumber numberWithInt:CPTScatterPlotFieldY],
nil]];
}
plotData = newData;
plotData1 = newData1;
NSLog(@"Data are: %@",plotData);
NSLog(@"Data are: %@",plotData1);
}
}
-(void)renderInLayer:(CPTGraphHostingView *)layerHostingView withTheme:(CPTTheme *)theme animated:(BOOL)animated
{
// If you make sure your dates are calculated at noon, you shouldn't have to
// worry about daylight savings. If you use midnight, you will have to adjust
// for daylight savings time.
CGRect frame1 = CGRectMake(10,150,320,250);
FESubView = [[CPTGraphHostingView alloc]initWithFrame:frame1];
FESubView.allowPinchScaling = YES;
[self.view addSubview:FESubView];
//NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
gregorian = [self setCalendar];
NSDateComponents *dateComponents = [gregorian components:(NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit ) fromDate:[[self.fullTransaction valueForKey:@"tDate" ] objectAtIndex:0]];
NSDate *refDate = [gregorian dateFromComponents:dateComponents];
NSLog(@"RefDate is :%@",refDate);
#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
CGRect bounds = layerHostingView.bounds;
#else
CGRect bounds = NSRectToCGRect(layerHostingView.bounds);
#endif
CPTGraph *graph = [[CPTXYGraph alloc] initWithFrame:bounds];
[graph applyTheme:[CPTTheme themeNamed:kCPTDarkGradientTheme]];
FESubView.hostedGraph = graph;
graph.title = @"Fuel Economy Graph";
CPTMutableTextStyle *titleStyle = [CPTMutableTextStyle textStyle];
titleStyle.color = [CPTColor whiteColor];
titleStyle.fontName = @"Helvetica-Bold";
titleStyle.fontSize = 14.0f;
graph.titleTextStyle = titleStyle;
graph.titlePlotAreaFrameAnchor = CPTRectAnchorTop;
graph.titleDisplacement = CGPointMake(0.0f, 10.0f);
// 4 - Set padding for plot area
[graph.plotAreaFrame setPaddingLeft:40.0f];
[graph.plotAreaFrame setPaddingBottom:65.0f];
[graph.plotAreaFrame setPaddingTop:3.0f];
[graph.plotAreaFrame setPaddingRight:3.0f];
graph.legend = [CPTLegend legendWithGraph:graph];
graph.legend.fill = [CPTFill fillWithColor:[CPTColor darkGrayColor]];
graph.legend.cornerRadius = 5.0;
graph.legend.swatchSize = CGSizeMake(25.0, 25.0);
graph.legendAnchor = CPTRectAnchorCenter;
graph.legendDisplacement = CGPointMake(2.40, 12.0);
// Setup scatter plot space
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace;
NSTimeInterval xLow = 0.0f;
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(xLow) length:CPTDecimalFromFloat(oneDay * 10)];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(5.0) length:CPTDecimalFromFloat(10.0f)];
//symbol
CPTMutablePlotRange *xRange = [plotSpace.xRange mutableCopy];
[xRange expandRangeByFactor:CPTDecimalFromCGFloat(1)];
//
plotSpace.allowsUserInteraction = YES;
// Create a plot that uses the data source method
CPTScatterPlot *dataSourceLinePlot = [[CPTScatterPlot alloc] init];
dataSourceLinePlot.identifier = @"Nisan Plot";
CPTColor *feColor = [CPTColor redColor];
CPTMutableLineStyle *feLineStyle = [dataSourceLinePlot.dataLineStyle mutableCopy];
feLineStyle.lineWidth = 2.5;
feLineStyle.lineColor = feColor;
dataSourceLinePlot.dataLineStyle = feLineStyle;
CPTMutableLineStyle *feSymbolLineStyle = [CPTMutableLineStyle lineStyle];
feSymbolLineStyle.lineColor = feColor;
CPTPlotSymbol *feSymbol = [CPTPlotSymbol ellipsePlotSymbol];
feSymbol.fill = [CPTFill fillWithColor:feColor];
feSymbol.lineStyle = feSymbolLineStyle;
feSymbol.size = CGSizeMake(6.0f, 6.0f);
dataSourceLinePlot.plotSymbol = feSymbol;
CPTMutableTextStyle *feLabelStyle = [CPTMutableTextStyle textStyle];
feLabelStyle.fontSize = 10;
feLabelStyle.color = [CPTColor whiteColor];
dataSourceLinePlot.labelTextStyle = feLabelStyle;
dataSourceLinePlot.title = @"Nissan Terano";
dataSourceLinePlot.dataSource = self;
[graph addPlot:dataSourceLinePlot];
CPTMutableTextStyle *axisTextStyle = [[CPTMutableTextStyle alloc] init];
axisTextStyle.color = [CPTColor whiteColor];
axisTextStyle.fontName = @"Helvetica-Bold";
axisTextStyle.fontSize = 8.0f;
CPTScatterPlot *dataSourceLinePlot1 = [[CPTScatterPlot alloc] init];
dataSourceLinePlot1.identifier = @"Honda Plot";
CPTColor *feColor1 = [CPTColor blueColor];
CPTMutableLineStyle *feLineStyle1 = [dataSourceLinePlot1.dataLineStyle mutableCopy];
feLineStyle1.lineWidth = 2.5;
feLineStyle1.lineColor = feColor1;
dataSourceLinePlot1.dataLineStyle = feLineStyle1;
CPTMutableLineStyle *feSymbolLineStyle1 = [CPTMutableLineStyle lineStyle];
feSymbolLineStyle1.lineColor = feColor1;
CPTPlotSymbol *feSymbol1 = [CPTPlotSymbol ellipsePlotSymbol];
feSymbol1.fill = [CPTFill fillWithColor:feColor1];
feSymbol1.lineStyle = feSymbolLineStyle1;
feSymbol1.size = CGSizeMake(6.0f, 6.0f);
dataSourceLinePlot1.plotSymbol = feSymbol1;
//CPTTextStyle *test = [CPTTextStyle textStyle];
//test.fontSize = 12;
CPTMutableTextStyle *feLabelStyle1 = [CPTMutableTextStyle textStyle];
feLabelStyle1.fontSize = 10;
feLabelStyle1.color = [CPTColor whiteColor];
dataSourceLinePlot1.labelTextStyle = feLabelStyle1;
dataSourceLinePlot1.dataSource = self;
[graph addPlot:dataSourceLinePlot1];
dataSourceLinePlot1.title = @"Honda Jazz";
//
// Axes
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)graph.axisSet;
CPTXYAxis *x = axisSet.xAxis;
x.majorIntervalLength = CPTDecimalFromFloat(oneDay);
x.orthogonalCoordinateDecimal = CPTDecimalFromString(@"5");
x.minorTicksPerInterval = 0;
x.labelTextStyle = axisTextStyle;
//x.axisLineStyle = axisLineStyle;
//x.axisLineStyle = feLabelStyle;
dateFormatter = [self setDateFormatterLabel];
//dateFormatter.dateStyle = kCFDateFormatterShortStyle;
CPTTimeFormatter *timeFormatter = [[CPTTimeFormatter alloc] initWithDateFormatter:dateFormatter];
timeFormatter.referenceDate = refDate;
x.labelFormatter = timeFormatter;
x.labelRotation = M_PI / 4;
x.tickLabelDirection = CPTSignPositive;
x.tickDirection = CPTSignPositive;
//x.labelTextStyle = feLabelStyle;
//x.visibleRange=plotSpace.xRange;
x.labelOffset = -70;
CPTXYAxis *y = axisSet.yAxis;
y.majorIntervalLength = CPTDecimalFromString(@"5.0");
y.minorTicksPerInterval = 10;
y.orthogonalCoordinateDecimal = CPTDecimalFromString(@"-1");
}
1 ответ
Я не уверен, что вы имеете в виду. Можете ли вы объяснить вопрос более четко?
Вы никогда не добавляете места в
xLocationsзадавать. ЕслиcustomTickLocationsмассив содержит все нужные вам местоположения, просто установите местоположения галочек напрямую:x.majorTickLocations = [NSSet setWithArray:customTickLocations];Почему вы используете
-expandRangeByFactor:? Если вы знаете желаемый диапазон графика, просто установите его напрямую:plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromDouble(0.0) length:CPTDecimalFromDouble(10.0)];