SciChart iOS 3D supports selection of a data point. This example demonstrates selection functionality on the Scatter Point 3D Chart.

How to use example!
To select a scatter point, please tap on one. Tapping on several points will allow you to select multiple points. To deselect, please tap on the already selected point again or long press on an empty place.

The selection functionality of points in 3D iOS graphs in SciChart is provided by SCIVertexSelectionModifier3D Modifier.

Please read more about selection and SCIVertexSelectionModifier3D in iOS SWIF and iOS Objective-C Charts with SciChart Component in our documentation.

// SelectScatterPoints3DChartView.m

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// SelectScatterPoints3DChartView.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 "SelectScatterPoints3DChartView.h"
#import "SCDDataManager.h"

@implementation SelectScatterPoints3DChartView

- (void)initExample {
    SCINumericAxis3D *xAxis = [SCINumericAxis3D new];
    xAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
    SCINumericAxis3D *yAxis = [SCINumericAxis3D new];
    yAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
    SCINumericAxis3D *zAxis = [SCINumericAxis3D new];
    zAxis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1];
    
    SCIXyzDataSeries3D *ds = [[SCIXyzDataSeries3D alloc] initWithXType:SCIDataType_Double yType:SCIDataType_Double zType:SCIDataType_Double];
    for (int i = 0; i < 250; ++i) {
        double x = [SCDDataManager getGaussianRandomNumber:15 stdDev:1.5];
        double y = [SCDDataManager getGaussianRandomNumber:15 stdDev:1.5];
        double z = [SCDDataManager getGaussianRandomNumber:15 stdDev:1.5];
        
        [ds appendX:@(x) y:@(y) z:@(z)];
    }
    
    SCIEllipsePointMarker3D *pointMarker = [SCIEllipsePointMarker3D new];
    pointMarker.fillColor = 0xFF32CD32;
    pointMarker.size = 5.f;
    
    SCIScatterRenderableSeries3D *rs = [SCIScatterRenderableSeries3D new];
    rs.dataSeries = ds;
    rs.pointMarker = pointMarker;
    rs.metadataProvider = [[SCIDefaultSelectableMetadataProvider3D alloc] initWithRenderableSeriesType:SCIScatterRenderableSeries3D.class];
    
    SCIZoomExtentsModifier3D *zoomExtentsModifier = [SCIZoomExtentsModifier3D new];
    zoomExtentsModifier.executeOn = SCIExecuteOn_Fling;
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        self.surface.xAxis = xAxis;
        self.surface.yAxis = yAxis;
        self.surface.zAxis = zAxis;
        [self.surface.renderableSeries add:rs];
        [self.surface.chartModifiers add:[SCIPinchZoomModifier3D new]];
        [self.surface.chartModifiers add:[SCIVertexSelectionModifier3D new]];
        [self.surface.chartModifiers add:zoomExtentsModifier];
        [self.surface.chartModifiers add:[[SCIOrbitModifier3D alloc] initWithDefaultNumberOfTouches:2]];
    }];
}

@end

// SelectScatterPoints3DChartView.swift

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// SelectScatterPoints3DChartView.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 SelectScatterPoints3DChartView: SingleChartLayout3D {
    
    override func initExample() {
        let xAxis = SCINumericAxis3D()
        xAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
        let yAxis = SCINumericAxis3D()
        yAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
        let zAxis = SCINumericAxis3D()
        zAxis.growBy = SCIDoubleRange(min: 0.1, max: 0.1)
        
        let dataSeries = SCIXyzDataSeries3D(xType: .double, yType: .double, zType: .double)
        for _ in 0 ..< 250 {
            let x = SCDDataManager.getGaussianRandomNumber(5, stdDev: 1.5)
            let y = SCDDataManager.getGaussianRandomNumber(5, stdDev: 1.5)
            let z = SCDDataManager.getGaussianRandomNumber(5, stdDev: 1.5)
            dataSeries.append(x: x, y: y, z: z)
        }
        
        let pointMarker = SCIEllipsePointMarker3D()
        pointMarker.fillColor = 0xFF32CD32
        pointMarker.size = 5.0
        
        let rs = SCIScatterRenderableSeries3D()
        rs.dataSeries = dataSeries
        rs.pointMarker = pointMarker
        rs.metadataProvider = SCIDefaultSelectableMetadataProvider3D(renderableSeriesType: SCIScatterRenderableSeries3D.self)
        
        let zoomExtentsModifier = SCIZoomExtentsModifier3D()
        zoomExtentsModifier.executeOn = .fling
        
        SCIUpdateSuspender.usingWith(surface) {
            self.surface.xAxis = xAxis
            self.surface.yAxis = yAxis
            self.surface.zAxis = zAxis
            self.surface.renderableSeries.add(rs)
            self.surface.chartModifiers.add(items: SCIPinchZoomModifier3D(), SCIVertexSelectionModifier3D(), zoomExtentsModifier, SCIOrbitModifier3D(defaultNumberOfTouches: 2))
        }
    }
}

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