NCICharts：iOS 的线性图表和带有范围选择器的图表
- 安装
- 简单
- 缩放平滑线条和轴定制
- 范围
- 定制选项
- 范围图表定制
- 实时更新
安装
pod 'NCICharts'
简单
#import "NCISimpleChartView.h"
NCISimpleChartView *chart = [[NCISimpleChartView alloc] initWithFrame:CGRectMake(50, 30, 400, 250)];
[self.view addSubview:chart];
int numOfPoints = 10;
for (int ind = 0; ind < numOfPoints; ind ++){
if (ind % 5 == 0){
[chart addPoint:ind val:@[[NSNull null]]];
} else {
[chart addPoint:ind val:@[@(arc4random() % 5)]];
}
}
缩放平滑线条和轴定制
NCISimpleChartView *zoomingChart = [[NCISimpleChartView alloc] initWithFrame:
CGRectMake(self.view.frame.size.height + 50, 30, 400, 250)
andOptions:@{nciGraphRenderer: [NCIZoomGraphView class],
nciIsSmooth: @[@YES],
nciYAxis: @{
nciAxisShift: @320,
nciInvertedLabes: @YES,
nciLineDashes: @[],
nciLineWidth: @2
},
nciXAxis: @{
nciLineColor: [UIColor greenColor],
nciLineWidth: @2,
nciAxisShift : @90,
nciInvertedLabes: @YES
}}];
[pages addSubview:zoomingChart];
int numOfPoints = 10;
for (int ind = 0; ind < numOfPoints; ind ++){
[zoomingChart addPoint:ind val:@[@(arc4random() % 5)]];
} NCISimpleChartView *nciChartDecreasing = [[NCISimpleChartView alloc] initWithFrame:
CGRectMake(self.view.frame.size.height + 50, 30, 400, 250) andOptions:
@{
nciGraphRenderer: [NCIZoomGraphView class],
nciLineWidths: @[@2],
nciIsFill: @[@(NO)],
nciYAxis: @{
nciAxisDecreasing: @YES,
nciAxisShift : @320,
nciInvertedLabes: @YES
},
nciXAxis: @{
nciAxisDecreasing: @YES,
nciAxisShift : @0,
nciInvertedLabes: @YES
}
}];
nciChartDecreasing.topBottomGridSpace = 0;
[pages addSubview:nciChartDecreasing];
for (int ind = 10; ind < 50; ind ++){
[nciChartDecreasing addPoint:ind val:@[@(ind*ind)]];
}
范围
#import "NCIChartView.h"
NCIChartView *chart = [[NCIChartView alloc] initWithFrame:CGRectMake(0, 0, 300, 400)];
[self.view addSubview:chart];
int numOfPoints = 10;
for (int ind = 0; ind < numOfPoints; ind ++){
[chart addPoint:ind val:@[@(arc4random() % 5)]];
}
chart.minRangeVal = 5;
chart.maxRangeVal = 8;
定制选项
NCISimpleChartView *simpleChart = [[NCISimpleChartView alloc]
initWithFrame:CGRectMake(50, 30, 400, 250)
andOptions: @{
nciIsFill: @[@(NO), @(NO)],
nciIsSmooth: @[@(NO), @(YES)],
nciLineColors: @[[UIColor orangeColor], [NSNull null]],
nciLineWidths: @[@2, [NSNull null]],
nciHasSelection: @YES,
nciSelPointColors: @[[UIColor redColor]],
nciSelPointImages: @[[NSNull null], @"star"],
nciSelPointTextRenderer: ^(double argument, NSArray* values){
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MMM-dd HH:mm:ss"];
return [[NSAttributedString alloc] initWithString:
[NSString stringWithFormat:@"y: %.0f,%.0f x:%@",
[values[0] floatValue],
[values[1] floatValue],
[dateFormatter stringFromDate:[NSDate dateWithTimeIntervalSince1970: argument]]]
attributes: @{NSForegroundColorAttributeName: [UIColor redColor],
NSFontAttributeName: [UIFont fontWithName:@"MarkerFelt-Thin" size:12]}];
},
nciSelPointSizes: @[@10, [NSNull null]],
// nciTapGridAction: ^(double argument, double value, float xInGrid, float yInGrid){
//
// },
nciShowPoints : @YES,
nciUseDateFormatter: @YES,//nciXLabelRenderer
nciXAxis: @{nciLineColor: [UIColor redColor],
nciLineDashes: @[],
nciLineWidth: @2,
nciLabelsFont: [UIFont fontWithName:@"MarkerFelt-Thin" size:12],
nciLabelsColor: [UIColor blueColor],
nciLabelsDistance: @120,
nciUseDateFormatter: @YES
},
nciYAxis: @{nciLineColor: [UIColor blackColor],
nciLineDashes: @[@2,@2],
nciLineWidth: @1,
nciLabelsFont: [UIFont fontWithName:@"MarkerFelt-Thin" size:12],
nciLabelsColor: [UIColor brownColor],
nciLabelsDistance: @30,
nciLabelRenderer: ^(double value){
return [[NSAttributedString alloc] initWithString: [NSString stringWithFormat:@"%.1f$", value]
attributes:@{NSForegroundColorAttributeName: [UIColor brownColor],
NSFontAttributeName: [UIFont fontWithName:@"MarkerFelt-Thin" size:12]}];
},
},
nciGridVertical: @{nciLineColor: [UIColor purpleColor],
nciLineDashes: @[],
nciLineWidth: @1},
nciGridHorizontal: @{nciLineColor: [UIColor greenColor],
nciLineDashes: @[@2,@2],
nciLineWidth: @2},
nciGridColor: [[UIColor magentaColor] colorWithAlphaComponent:0.1],
nciGridLeftMargin: @50,
nciGridTopMargin: @50,
nciGridBottomMargin: @40
}];
simpleChart.backgroundColor = [[UIColor yellowColor] colorWithAlphaComponent:0.2];
int numOfPoints = 10;
double dataPeriod = 60*60*24*30;
double step = dataPeriod/(numOfPoints - 1);
for (int ind = 0; ind < numOfPoints; ind ++){
//to use default date formatter for Y axis, provide arguments as timeIntervalSince1970
//and set nciXLabelRenderer option to YES
[simpleChart addPoint:[[NSDate dateWithTimeIntervalSinceNow: -dataPeriod + step *ind] timeIntervalSince1970] val:@[@(arc4random() % 5),
@(arc4random() % 5)]];
}
范围图表定制
NCIChartView *chart = [[NCIChartView alloc]
initWithFrame:CGRectMake(0, 0, 400, 250)
andOptions: @{
nciTopGraphOptions : @{
//simple chart options
},
nciBottomGraphOptions : @{
//simple chart options
},
nciLeftRangeImageName: @"image",
nciRightRangeImageName: @"image",
nciBottomChartHeight: @50
}
];
//@property(nonatomic)double minRangeVal;
//@property(nonatomic)double maxRangeVal;
//@property (nonatomic, copy) void (^rangesMoved)(void);
实时更新
NCISimpleChartView *chart = [[NCISimpleChartView alloc]
initWithFrame:CGRectMake(50, 30, 400, 250)];
[self.view addSubview:chart];
int numOfPoints = 10;
for (int ind = 0; ind < numOfPoints; ind ++){
[chart addPoint:ind val:@[@(arc4random() % 5)]];
}
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
for (int ind = numOfPoints; ind < 4*numOfPoints; ind ++){
[NSThread sleepForTimeInterval:2.0f];
[chart addPoint:ind val:@[@(2*ind)]];
dispatch_async(dispatch_get_main_queue(), ^{
[chart drawChart];
});
}
}); 
