NCICharts: Linear charts and charts with range selectors for iOS

1. Instalation
2. Simple
3. Zoom smooth line and axis customization
4. Ranges
5. Customization options
6. Ranges chart customization
7. Live updates

Instalation

pod 'NCICharts'

Simple

![alt text][Illustration] [Illustration]: https://raw.github.com/FlowForwarding/dynamiccharts/master/docs/simple.png "NCI simple chart"

#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)]];
}
}

Zoom smooth line and axis customization

![alt text][IllustrationZoom] [IllustrationZoom]: https://raw.github.com/FlowForwarding/dynamiccharts/master/docs/zoom.gif

![alt text][IllustrationDecr] [IllustrationDecr]: https://raw.github.com/FlowForwarding/dynamiccharts/master/docs/decr.png

 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)]];
}

Ranges

![alt text][Illustration2] [Illustration2]: https://raw.github.com/FlowForwarding/dynamiccharts/master/docs/ranges.png "NCI chart"

#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; 

Customization options

![alt text][Illustration4] [Illustration4]: https://raw.github.com/FlowForwarding/dynamiccharts/master/docs/cuatomization.png "NCI customized chart"

 NCISimpleChartView *simpleChart = [[NCISimpleChartView alloc]
initWithFrame:CGRectMake(50, 30, 400, 250)
andOptions: @{
nciIsFill: @[@(NO), @(NO)],
nciIsSmooth: @[@(NO), @(YES)],
nciLineColors: @[[UIColor orangeColor], [NSNullnull]],
nciLineWidths: @[@2, [NSNullnull]],
nciHasSelection: @YES,
nciSelPointColors: @[[UIColor redColor]],
nciSelPointImages: @[[NSNullnull], @"star"],
nciSelPointTextRenderer: ^(double argument, NSArray* values){
NSDateFormatter *dateFormatter = [[NSDateFormatteralloc] init];
[dateFormatter setDateFormat:@"yyyy-MMM-dd HH:mm:ss"];
return [[NSAttributedStringalloc] initWithString:
[NSStringstringWithFormat:@"y: %.0f,%.0f x:%@",
[values[0] floatValue],
[values[1] floatValue],
[dateFormatter stringFromDate:[NSDatedateWithTimeIntervalSince1970: argument]]]
attributes: @{NSForegroundColorAttributeName: [UIColor redColor],
NSFontAttributeName: [UIFont fontWithName:@"MarkerFelt-Thin"size:12]}];
},
nciSelPointSizes: @[@10, [NSNullnull]],
// 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 [[NSAttributedStringalloc] initWithString: [NSStringstringWithFormat:@"%.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:[[NSDatedateWithTimeIntervalSinceNow: -dataPeriod + step *ind] timeIntervalSince1970] val:@[@(arc4random() % 5),
@(arc4random() % 5)]];
} 

Ranges chart customization

 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); 

Live updates

 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 ++){
[NSThreadsleepForTimeInterval:2.0f];
[chart addPoint:ind val:@[@(2*ind)]];
dispatch_async(dispatch_get_main_queue(), ^{
[chart drawChart];
});
}
});