Generates an iOS Digital (Step) Line Chart in code. See Documentation on how to use this type here: The iOS Digital Line Chart Documentation.

The SCIFastLineRenderableSeries can be used to render a high performance iOS Line Chart in either Swift or Objective C. SciChart iOS supports millions of points out of the box, and is suitable for use in real-time scientific, medical and trading applications.

Data is provided by a DataSeries, e.g. the SCIXyDataSeries, SCIXyyDataSeries (uses Y1 only) or SCIOhlcDataSeries (renders close).

// DigitalLineChartView.m

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// DigitalLineChartView.m is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

#import "DigitalLineChartView.h"
#import "SCDDataManager.h"

@implementation DigitalLineChartView

- (Class)associatedType { return SCIChartSurface.class; }

- (void)initExample {
    id<ISCIAxis> xAxis = [SCINumericAxis new];
    xAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
    xAxis.visibleRange = [[SCIDoubleRange alloc] initWithMin:1 max:1.25];
    
    id<ISCIAxis> yAxis = [SCINumericAxis new];
    yAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.5 max:0.5];
    yAxis.visibleRange = [[SCIDoubleRange alloc] initWithMin:2.3 max:3.3];

    SCDDoubleSeries *fourierSeries = [SCDDataManager getFourierSeriesWithAmplitude:1.0 phaseShift:0.1 count:5000];
    SCIXyDataSeries *dataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double yType:SCIDataType_Double];
    [dataSeries appendValuesX:fourierSeries.xValues y:fourierSeries.yValues];
    
    SCIFastLineRenderableSeries *rSeries = [SCIFastLineRenderableSeries new];
    rSeries.dataSeries = dataSeries;
    rSeries.strokeStyle = [[SCISolidPenStyle alloc] initWithColorCode:0xFF99EE99 thickness:1.0];
    rSeries.isDigitalLine = YES;
    
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        [self.surface.xAxes add:xAxis];
        [self.surface.yAxes add:yAxis];
        [self.surface.renderableSeries add:rSeries];
        [self.surface.chartModifiers add:[SCDExampleBaseViewController createDefaultModifiers]];

        [SCIAnimations waveSeries:rSeries duration:3.0 andEasingFunction:[SCICubicEase new]];
    }];
}

@end

// DigitalLineChartView.swift

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// DigitalLineChartView.swift is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

class DigitalLineChartView: SCDSingleChartViewController<SCIChartSurface> {
    
    override var associatedType: AnyClass { return SCIChartSurface.self }
    
    override func initExample() {
        let xAxis = SCINumericAxis()
        xAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
        xAxis.visibleRange = SCIDoubleRange(min: 1, max: 1.25)
        
        let yAxis = SCINumericAxis()
        yAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
        yAxis.visibleRange = SCIDoubleRange(min: 2.3, max: 3.3)
        
        let fourierSeries = SCDDataManager.getFourierSeries(withAmplitude: 1.0, phaseShift: 0.1, count: 5000)
        let dataSeries = SCIXyDataSeries(xType: .double, yType: .double)
        dataSeries.append(x: fourierSeries.xValues, y: fourierSeries.yValues)
        
        let rSeries = SCIFastLineRenderableSeries()
        rSeries.strokeStyle = SCISolidPenStyle(color: 0xFF99EE99, thickness: 1.0)
        rSeries.dataSeries = dataSeries
        rSeries.isDigitalLine = true
        
        SCIUpdateSuspender.usingWith(surface) {
            self.surface.xAxes.add(xAxis)
            self.surface.yAxes.add(yAxis)
            self.surface.renderableSeries.add(rSeries)
            self.surface.chartModifiers.add(SCDExampleBaseViewController.createDefaultModifiers())
            
            SCIAnimations.wave(rSeries, duration: 3.0, andEasingFunction: SCICubicEase())
        }
    }
}

< BACK TO ALL IOS & MACOS CHARTS CHART EXAMPLES