This example demonstrates you how to use functionality of adding and removing series on demand (on a button action). This can be done programmatically using SCIRenderableSeriesCollection. Users of your application will be able to change the RenderableSeriesCollection on the SCIChartSurface at runtime!

// AddRemoveSeriesChartView.m

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// AddRemoveSeriesChartView.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 "AddRemoveSeriesChartView.h"
#import "SCDButtonsTopPanel.h"
#import "SCDToolbarButton.h"
#import "SCDDataManager.h"
#import "SCDRandomUtil.h"
#import "SCDToolbarButtonsGroup.h"

@implementation AddRemoveSeriesChartView

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

- (NSArray<id<ISCDToolbarItemModel>> *)panelItems {
    __weak typeof(self) wSelf = self;
    return @[
        [[SCDToolbarButton alloc] initWithTitle:@"Add Series" image:nil andAction:^{ [wSelf add]; }],
        [[SCDToolbarButton alloc] initWithTitle:@"Remove Series" image:nil andAction:^{ [wSelf remove]; }],
        [[SCDToolbarButton alloc] initWithTitle:@"Clear" image:nil andAction:^{ [wSelf.surface.renderableSeries clear]; }],
    ];
}

#if TARGET_OS_OSX
- (NSArray<id<ISCDToolbarItem>> *)provideExampleSpecificToolbarItems {
    return @[[[SCDToolbarButtonsGroup alloc] initWithToolbarItems:self.panelItems]];
}
#elif TARGET_OS_IOS
- (SCIView *)providePanel {
    return [[SCDButtonsTopPanel alloc] initWithToolbarItems:self.panelItems];
}
#endif

- (void)initExample {
    id<ISCIAxis> xAxis = [SCINumericAxis new];
    xAxis.autoRange = SCIAutoRange_Always;
    xAxis.visibleRange = [[SCIDoubleRange alloc] initWithMin:0.0 max:150.0];
    xAxis.axisTitle = @"X Axis";
    
    id<ISCIAxis> yAxis = [SCINumericAxis new];
    yAxis.autoRange = SCIAutoRange_Always;
    yAxis.axisTitle = @"Y Axis";
    
    [self.surface.xAxes add:xAxis];
    [self.surface.yAxes add:yAxis];
    
    [self.surface.chartModifiers add:[SCDExampleBaseViewController createDefaultModifiers]];
}

- (void)add {
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        SCDDoubleSeries *randomDoubleSeries = [SCDDataManager getRandomDoubleSeriesWithCount:150];
        SCIXyDataSeries *dataSeries = [[SCIXyDataSeries alloc] initWithXType:SCIDataType_Double yType:SCIDataType_Double];
        [dataSeries appendValuesX:randomDoubleSeries.xValues y:randomDoubleSeries.yValues];
    
        SCIFastMountainRenderableSeries *mountainRenderSeries = [[SCIFastMountainRenderableSeries alloc]init];
        mountainRenderSeries.dataSeries = dataSeries;
        
        [SCIColor colorWithRed:randi(0, 255) green:randi(0, 255) blue:randi(0, 255) alpha:1.0];
        
        mountainRenderSeries.areaStyle = [[SCISolidBrushStyle alloc] initWithColor:[SCIColor colorWithRed:randi(0, 255) green:randi(0, 255) blue:randi(0, 255) alpha:1.0]];
        mountainRenderSeries.strokeStyle = [[SCISolidPenStyle alloc] initWithColor:[SCIColor colorWithRed:randi(0, 255) green:randi(0, 255) blue:randi(0, 255) alpha:1.0] thickness:1.0];
        
        [self.surface.renderableSeries add:mountainRenderSeries];
    }];
}

- (void)remove {
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        if (self.surface.renderableSeries.count > 0) {
            [self.surface.renderableSeries removeAt:0];
        }
    }];
}

@end

// AddRemoveSeriesChartView.swift

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// AddRemoveSeriesChartView.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 AddRemoveSeriesChartView: SCDSingleChartWithTopPanelViewController<SCIChartSurface> {
    
    override var associatedType: AnyClass { return SCIChartSurface.self }
    
    private var panelItems: [ISCDToolbarItemModel] {
        return [
            SCDToolbarButton(title: "Add Series", image: nil, andAction: { [weak self] in self?.add() }),
            SCDToolbarButton(title: "Remove Series", image: nil, andAction: { [weak self] in self?.remove() }),
            SCDToolbarButton(title: "Clear", image: nil, andAction: { [weak self] in self?.surface.renderableSeries.clear() })
        ]
    }
    
#if os(OSX)
    override func provideExampleSpecificToolbarItems() -> [ISCDToolbarItem] {
        return [SCDToolbarButtonsGroup(toolbarItems: panelItems)]
    }
#elseif os(iOS)
    override func providePanel() -> SCIView {
        return SCDButtonsTopPanel(toolbarItems: self.panelItems)
    }
#endif
 
    override func initExample() {
        let xAxis = SCINumericAxis()
        xAxis.autoRange = .always
        xAxis.visibleRange = SCIDoubleRange(min: 0.0, max: 150.0)
        xAxis.axisTitle = "X Axis"

        let yAxis = SCINumericAxis()
        yAxis.autoRange = .always
        yAxis.axisTitle = "Y Axis"

        self.surface.xAxes.add(xAxis)
        self.surface.yAxes.add(yAxis)
        surface.chartModifiers.add(SCDExampleBaseViewController.createDefaultModifiers())
    }
    
    fileprivate func add() {
        SCIUpdateSuspender.usingWith(surface) {
            let randomDoubleSeries = SCDDataManager.getRandomDoubleSeries(withCount: 150)
            let dataSeries = SCIXyDataSeries.init(xType: .double, yType: .double)
            dataSeries.append(x: randomDoubleSeries.xValues, y: randomDoubleSeries.yValues)

            let mountainRenderSeries = SCIFastMountainRenderableSeries()
            mountainRenderSeries.dataSeries = dataSeries
            mountainRenderSeries.areaStyle = SCISolidBrushStyle.init(color: SCIColor.init(red: CGFloat(randi(0, 255)), green: CGFloat(randi(0, 255)), blue: CGFloat(randi(0, 255)), alpha: 1.0))
            mountainRenderSeries.strokeStyle = SCISolidPenStyle(color: SCIColor.init(red: CGFloat(randi(0, 255)), green: CGFloat(randi(0, 255)), blue: CGFloat(randi(0, 255)), alpha: 1.0), thickness: 1.0)
            self.surface.renderableSeries.add(mountainRenderSeries)
        }
    }
    
    fileprivate func remove() {
        SCIUpdateSuspender.usingWith(surface) {
            if (self.surface.renderableSeries.count > 0) {
                self.surface.renderableSeries.remove(at: 0)
            }
        }
    }
}

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