SciChart iOS allows you to create both Impulse or Stem chart in 3D. They are provided by SCIImpulseRenderableSeries3D series.

A stem chart is visualised as small stems pointing up or down with different kinds of markers at the top, that could be spheres, cubes or else. These shapes are defined by PointMarker property and has the following shapes out of the box:

• SpherePointMarker3D;
• CubePointMarker3D;
• PyramidPointMarker3D;
• CylinderPointMarker3D.

To learn more, have a look at SciChart Impulse iOS 3D Chart Type documentation.

// SparseImpulseSeries3D.m

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// SparseImpulseSeries3D.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 "SparseImpulseSeries3D.h"
#import "SCDDataManager.h"

@implementation SparseImpulseSeries3D

- (Class)associatedType { return SCIChartSurface3D.class; }

- (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];
    SCIPointMetadataProvider3D *metadataProvider = [SCIPointMetadataProvider3D new];
    
    for (int i = 0; i < 15; ++i) {
        for (int j = 0; j < 15; ++j) {
            if (i != j && (i % 3) == 0 && (j % 3) == 0) {
                double y = [SCDDataManager getGaussianRandomNumber:15 stdDev:1.5];
                [ds appendX:@(i) y:@(y) z:@(j)];
                
                SCIPointMetadata3D *metaData = [[SCIPointMetadata3D alloc] initWithVertexColor:[SCDDataManager randomColor]];
                [metadataProvider.metadata addObject:metaData];
            }
        }
    }
    
    SCISpherePointMarker3D *pointMarker = [SCISpherePointMarker3D new];
    pointMarker.fillColor = 0x77ADFF2F;
    pointMarker.size = 10.f;
    
    SCIImpulseRenderableSeries3D *rSeries = [SCIImpulseRenderableSeries3D new];
    rSeries.dataSeries = ds;
    rSeries.metadataProvider = metadataProvider;
    rSeries.pointMarker = pointMarker;
        
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        self.surface.xAxis = xAxis;
        self.surface.yAxis = yAxis;
        self.surface.zAxis = zAxis;
        [self.surface.renderableSeries add:rSeries];
        [self.surface.chartModifiers add:[SCDExampleBaseViewController createDefaultModifiers3D]];
    }];
}

@end

// SparseImpulseSeries3D.swift

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// SparseImpulseSeries3D.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 SparseImpulseSeries3D: SCDSingleChartViewController<SCIChartSurface3D> {
    
    override var associatedType: AnyClass { return SCIChartSurface3D.self }
    
    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)
        let pointMetaDataProvider = SCIPointMetadataProvider3D()
        
        for i in 1 ..< 15 {
            for j in 1 ..< 15 {
                if (i != j) && (i % 3) == 0 && (j % 3) == 0 {
                    let y = SCDDataManager.getGaussianRandomNumber(5, stdDev: 1.5)
                    dataSeries.append(x: i, y: y, z: j)
                    
                    let metadata = SCIPointMetadata3D(vertexColor: SCDDataManager.randomColor())
                    pointMetaDataProvider.metadata.add(metadata)
                }
            }
        }
        
        let pointMarker = SCISpherePointMarker3D()
        pointMarker.fillColor = 0x77ADFF2F
        pointMarker.size = 10.0
        
        let rSeries = SCIImpulseRenderableSeries3D()
        rSeries.dataSeries = dataSeries
        rSeries.pointMarker = pointMarker
        rSeries.metadataProvider = pointMetaDataProvider
        
        SCIUpdateSuspender.usingWith(surface) {
            self.surface.xAxis = xAxis
            self.surface.yAxis = yAxis
            self.surface.zAxis = zAxis
            self.surface.renderableSeries.add(rSeries)
            self.surface.chartModifiers.add(SCDExampleBaseViewController.createDefaultModifiers3D())
        }
    }
}

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