This example demonstrates rendering 3D Sparse Impulse Chart in SciChart Android 3D. To create Android 3D Impulse or Stem Charts SciChart Android provides ImpulseRenderableSeries3D type that uses XyzDataSeries3D for sparse points, or UniformGridDataSeries3D for an NxM array of points.

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 Android 3D Chart Type Documentation.

// example_single_chart3d_fragment.xml

<?xml version="1.0" encoding="utf-8"?><!--*************************************************************************-->
<!-- SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved. -->
<!--   -->
<!-- Web: http://www.scichart.com -->
<!-- Support: support@scichart.com -->
<!-- Sales:   sales@scichart.com -->
<!--  -->
<!-- example_single_chart3d_fragment.xml 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. -->
<!--*************************************************************************-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.scichart.charting3d.visuals.SciChartSurface3D
        android:id="@+id/chart3d"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

// CreateSparseImpulseSeries3DFragment.java

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// CreateSparseImpulseSeries3DFragment.java 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.
//******************************************************************************

package com.scichart.examples.fragments.charts3d;

import com.scichart.charting3d.model.dataSeries.xyz.XyzDataSeries3D;
import com.scichart.charting3d.visuals.SciChartSurface3D;
import com.scichart.charting3d.visuals.axes.NumericAxis3D;
import com.scichart.charting3d.visuals.camera.Camera3D;
import com.scichart.charting3d.visuals.renderableSeries.impulse.ImpulseRenderableSeries3D;
import com.scichart.charting3d.visuals.renderableSeries.metadataProviders.PointMetadataProvider3D;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.examples.R;
import com.scichart.examples.data.DataManager;
import com.scichart.examples.fragments.base.ExampleBaseFragment;

import java.util.List;

import butterknife.BindView;

public class CreateSparseImpulseSeries3DFragment extends ExampleBaseFragment {
    private static final int COUNT = 15;

    @BindView(R.id.chart3d)
    SciChartSurface3D surface3d;

    @Override
    protected int getLayoutId() {
        return R.layout.example_single_chart3d_fragment;
    }

    @Override
    protected void initExample() {
        final DataManager dataManager = DataManager.getInstance();

        final XyzDataSeries3D<Double, Double, Double> ds = new XyzDataSeries3D<>(Double.class, Double.class, Double.class);

        final PointMetadataProvider3D metadataProvider = new PointMetadataProvider3D();
        final List<PointMetadataProvider3D.PointMetadata3D> metadata = metadataProvider.metadata;

        for (double i = 1; i < COUNT; i++) {
            for (double j = 1; j <= COUNT; j++) {
                if(i != j && i%2 == 0 && j%2 == 0) {
                    final double y = dataManager.getGaussianRandomNumber(5, 1.5);
                    final int color = dataManager.getRandomColor();

                    ds.append(i, y, j);
                    metadata.add(new PointMetadataProvider3D.PointMetadata3D(color));
                }
            }
        }

        final Camera3D camera = sciChart3DBuilder.newCamera3D() .build();

        final NumericAxis3D xAxis = sciChart3DBuilder.newNumericAxis3D().withGrowBy(.1, .1).build();
        final NumericAxis3D yAxis = sciChart3DBuilder.newNumericAxis3D().withGrowBy(.1, .1).build();
        final NumericAxis3D zAxis = sciChart3DBuilder.newNumericAxis3D().withGrowBy(.1, .1).build();

        final ImpulseRenderableSeries3D rs = sciChart3DBuilder.newImpulseSeries3D()
                .withDataSeries(ds)
                .withPointMarker(sciChart3DBuilder.newSpherePointMarker3D().withSize(10).build())
                .withMetadataProvider(metadataProvider)
                .build();

        UpdateSuspender.using(surface3d, new Runnable() {
            @Override
            public void run() {
                surface3d.setCamera(camera);

                surface3d.setXAxis(xAxis);
                surface3d.setYAxis(yAxis);
                surface3d.setZAxis(zAxis);

                surface3d.getRenderableSeries().add(rs);

                surface3d.getChartModifiers().add(sciChart3DBuilder.newModifierGroupWithDefaultModifiers().build());
            }
        });
    }
}

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