SciChart® the market leader in Fast WPF Charts, WPF 3D Charts, iOS Chart, Android Chart and JavaScript Chart Components

// Android Chart Examples

SciChart Android ships with ~90 Android Chart Examples which you can browse, play with, view the source-code and even export each SciChart Android Chart Example to a stand-alone Android Studio project. All of this is possible with the new and improved SciChart Android Examples Suite, which ships as part of our Android Charts SDK.

// Android 3D LiDAR Point Cloud Chart

This example demonstrates that SciChart Android is much more than just charts and it can be used for advanced visualizations, in this example to visualize the LiDAR data.

LiDAR data can be collected from a variety of sources, we have used the publicly available data set of UAV data of one of the UK regions. The LiDAR data, which is in .asc format is visualized with SciChart Android ScatterRenderableSeries3D with SpherePointMarker3D and SurfaceMeshRenderableSeries3D.

You can see this graphics on your Android phone or tablet. It is used across domains anything from defence to energy, civil engineering and more.

Android 3D LiDAR Point Cloud Chart

// Source Code

The full source code for the Android 3D Realtime Waterfall Chart example is included below (Scroll down!).

Did you know you can also view the source code from one of the following sources as well?

  1. Clone the SciChart.Android.Examples from Github.
  2. Or, view source and export each example to an Android Studio project from the Java version of the SciChart Android Examples app.
  3. Also the SciChart Android Trial contains the full source for the examples (link below).

DOWNLOAD THE ANDROID CHART EXAMPLES

Android 3D LiDAR Point Cloud Chart - View Source Code for this example

The SciChart Examples source code is available on Github and viewable in-app for some platforms

// Kotlin: LidarPointCloudFragment.kt

View on Github 
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// LidarPointCloudFragment.kt is part of SCICHART®, High Performance Scientific Charts
// For full terms and conditions of the license, see http://www.scichart.com/scichart-eula/
//
// This source code is protected by international copyright law. Unauthorized
// reproduction, reverse-engineering, or distribution of all or any portion of
// this source code is strictly prohibited.
//
// This source code contains confidential and proprietary trade secrets of
// SciChart Ltd., and should at no time be copied, transferred, sold,
// distributed or made available without express written permission.
//******************************************************************************

package com.scichart.examples.fragments.featuredApps.scientificCharts.kt

import android.view.LayoutInflater
import com.scichart.charting.visuals.renderableSeries.ColorMap
import com.scichart.charting3d.visuals.renderableSeries.data.DrawMeshAs.SolidWithContours
import com.scichart.charting3d.visuals.renderableSeries.data.GradientColorPalette
import com.scichart.charting3d.visuals.renderableSeries.metadataProviders.PointMetadataProvider3D
import com.scichart.charting3d.visuals.renderableSeries.metadataProviders.PointMetadataProvider3D.PointMetadata3D
import com.scichart.core.model.IntegerValues
import com.scichart.data.model.DoubleRange
import com.scichart.drawing.utility.ColorUtil.*
import com.scichart.examples.data.AscData
import com.scichart.examples.data.DataManager
import com.scichart.examples.databinding.ExampleSingleChart3dFragmentBinding
import com.scichart.examples.fragments.base.ShowcaseExampleBaseFragment
import com.scichart.examples.utils.scichartExtensions.*

class LidarPointCloudFragment : ShowcaseExampleBaseFragment<ExampleSingleChart3dFragmentBinding>() {

    override fun inflateBinding(inflater: LayoutInflater): ExampleSingleChart3dFragmentBinding {
        return ExampleSingleChart3dFragmentBinding.inflate(inflater)
    }

    override fun initExample(binding: ExampleSingleChart3dFragmentBinding) {
        val lidarData = DataManager.getInstance().getLidarData(requireContext())
        val pointMetadataProvider = createPointMetadataProvider(MIN, MAX, lidarData)

        binding.surface3d.suspendUpdates {
            xAxis = numericAxis3D { axisTitle = "X Distance (metres)"; textFormatting = "0m" }
            yAxis = numericAxis3D { axisTitle = "Height (metres)"; textFormatting = "0m"; visibleRange = DoubleRange(MIN, MAX) }
            zAxis = numericAxis3D { axisTitle = "Y Distance (metres)"; textFormatting = "0m" }

            renderableSeries {
                scatterRenderableSeries3D {
                    xyzDataSeries3D<Int, Double, Int> {
                        append(lidarData.xValues, lidarData.yValues, lidarData.zValues)
                    }
                    pixelPointMarker3D()
                    metadataProvider = pointMetadataProvider
                }
                surfaceMeshRenderableSeries3D {
                    uniformGridDataSeries3D<Int, Double, Int>(lidarData.numberColumns, lidarData.numberRows) {
                        stepX = lidarData.cellSize
                        stepZ = lidarData.cellSize
                        var index = 0
                        for (z in 0 until lidarData.numberRows) {
                            for (x in 0 until lidarData.numberColumns) {
                                updateYAt(x, z, lidarData.yValues[index++])
                            }
                        }
                    }
                    drawMeshAs = SolidWithContours
                    meshColorPalette = GradientColorPalette(
                        intArrayOf(0xFF1e90FF.toInt(), 0xFF32CD32.toInt(), Orange, Red, Purple),
                        floatArrayOf(0.0f, 0.2f, 0.5f, 0.7f, 1.0f)
                    )
                    contourStroke = 0xFFF0FFFF.toInt()
                    contourStrokeThickness = 2f
                    minimum = MIN
                    maximum = MAX
                    opacity = 0.5f
                }
            }

            chartModifiers {
                orbitModifier3D()
                zoomExtentsModifier3D {
                    resetPosition(800f, 1000f, 800f)
                    resetTarget(0f, 25f, 0f)
                }
                pinchZoomModifier3D()
            }

            camera {
                position(800f, 1000f, 800f)
                farClip = 10000f
            }
            worldDimensions.assign(1000f, 200f, 1000f)
        }
    }

    private fun createPointMetadataProvider(min: Double, max: Double, lidarData: AscData): PointMetadataProvider3D {
        val metadataProvider3D = PointMetadataProvider3D()
        val colorMap = ColorMap(
            intArrayOf(0xFF1E90FF.toInt(), 0xFF32CD32.toInt(), Orange, Red, Purple),
            floatArrayOf(0.0f, 0.2f, 0.5f, 0.7f, 1f)
        )
        val colors = IntegerValues()
        colorMap.lerpColorsForValues(colors, lidarData.yValues, min, max)

        val colorItems = colors.itemsArray
        for (i in 0 until colors.size()) {
            metadataProvider3D.metadata.add(PointMetadata3D(colorItems[i]))
        }

        return metadataProvider3D
    }

    companion object {
        private const val MIN = 0.0
        private const val MAX = 50.0
    }
}

// Java: LidarPointCloudFragment.java

View on Github 
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// LidarPointCloudFragment.java is part of SCICHART®, High Performance Scientific Charts
// For full terms and conditions of the license, see http://www.scichart.com/scichart-eula/
//
// This source code is protected by international copyright law. Unauthorized
// reproduction, reverse-engineering, or distribution of all or any portion of
// this source code is strictly prohibited.
//
// This source code contains confidential and proprietary trade secrets of
// SciChart Ltd., and should at no time be copied, transferred, sold,
// distributed or made available without express written permission.
//******************************************************************************

package com.scichart.examples.fragments.featuredApps.scientificCharts;

import android.view.LayoutInflater;

import androidx.annotation.NonNull;

import com.scichart.charting.visuals.renderableSeries.ColorMap;
import com.scichart.charting3d.model.dataSeries.grid.UniformGridDataSeries3D;
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.renderableSeries.data.DrawMeshAs;
import com.scichart.charting3d.visuals.renderableSeries.data.GradientColorPalette;
import com.scichart.charting3d.visuals.renderableSeries.data.MeshPaletteMode;
import com.scichart.charting3d.visuals.renderableSeries.metadataProviders.PointMetadataProvider3D;
import com.scichart.charting3d.visuals.renderableSeries.metadataProviders.PointMetadataProvider3D.PointMetadata3D;
import com.scichart.charting3d.visuals.renderableSeries.scatter.ScatterRenderableSeries3D;
import com.scichart.charting3d.visuals.renderableSeries.surfaceMesh.SurfaceMeshRenderableSeries3D;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.core.model.IntegerValues;
import com.scichart.examples.data.AscData;
import com.scichart.examples.data.DataManager;
import com.scichart.examples.databinding.ExampleSingleChart3dFragmentBinding;
import com.scichart.examples.fragments.base.ShowcaseExampleBaseFragment;

import java.util.Collections;

import io.reactivex.Observable;
import io.reactivex.schedulers.Schedulers;

import static com.scichart.drawing.utility.ColorUtil.Orange;
import static com.scichart.drawing.utility.ColorUtil.Purple;
import static com.scichart.drawing.utility.ColorUtil.Red;

public class LidarPointCloudFragment extends ShowcaseExampleBaseFragment<ExampleSingleChart3dFragmentBinding> {
    private final static double MIN = 0;
    private final static double MAX = 50;

    @NonNull
    @Override
    protected ExampleSingleChart3dFragmentBinding inflateBinding(@NonNull LayoutInflater inflater) {
        return ExampleSingleChart3dFragmentBinding.inflate(inflater);
    }

    @Override
    protected void initExample(ExampleSingleChart3dFragmentBinding binding) {
        final NumericAxis3D xAxis = sciChart3DBuilder.newNumericAxis3D().withAxisTitle("X Distance (metres)").withTextFormatting("0m").build();
        final NumericAxis3D yAxis = sciChart3DBuilder.newNumericAxis3D().withAxisTitle("Height (metres)").withTextFormatting("0m").withVisibleRange(MIN, MAX).build();
        final NumericAxis3D zAxis = sciChart3DBuilder.newNumericAxis3D().withAxisTitle("Y Distance (metres)").withTextFormatting("0m").build();

        final ScatterRenderableSeries3D scatterSeries = sciChart3DBuilder.newScatterSeries3D()
                .withPointMarker(sciChart3DBuilder.newPixelPointMarker3D().build())
                .build();

        final SurfaceMeshRenderableSeries3D surfaceMeshSeries = sciChart3DBuilder.newSurfaceMeshSeries3D()
                .withDrawMeshAs(DrawMeshAs.SolidWithContours)
                .withMeshColorPalette(new GradientColorPalette(
                        new int[]{0xFF1e90FF, 0xFF32CD32, Orange, Red, Purple},
                        new float[]{0.0f, 0.2f, 0.5f, 0.7f, 1.0f})
                )
                .withMeshPaletteMode(MeshPaletteMode.HeightMapInterpolated)
                .withContourStroke(0xFFF0FFFF)
                .withContourStrokeThickness(2)
                .withMinimum(MIN)
                .withMaximum(MAX)
                .withOpacity(0.5f)
                .build();

        // read and assign LIDAR to data series async
        getLidarData().doOnNext(lidarData -> {
            final PointMetadataProvider3D pointMetadataProvider = createPointMetadataProvider(MIN, MAX, lidarData);

            final XyzDataSeries3D<Integer, Double, Integer> xyzDataSeries3D = new XyzDataSeries3D<>(Integer.class, Double.class, Integer.class);
            xyzDataSeries3D.append(lidarData.xValues, lidarData.yValues, lidarData.zValues);

            final UniformGridDataSeries3D<Integer, Double, Integer> gridDataSeries3D = new UniformGridDataSeries3D<>(Integer.class, Double.class, Integer.class, lidarData.numberColumns, lidarData.numberRows);
            gridDataSeries3D.setStepX(lidarData.cellSize);
            gridDataSeries3D.setStepZ(lidarData.cellSize);
            int index = 0;
            for (int z = 0; z < lidarData.numberRows; z++) {
                for (int x = 0; x < lidarData.numberColumns; x++) {
                    gridDataSeries3D.updateYAt(x, z, lidarData.yValues.get(index++));
                }
            }

            scatterSeries.setDataSeries(xyzDataSeries3D);
            scatterSeries.setMetadataProvider(pointMetadataProvider);

            surfaceMeshSeries.setDataSeries(gridDataSeries3D);
        }).subscribeOn(Schedulers.io()).compose(bindToLifecycle()).subscribe();

        final SciChartSurface3D surface3d = binding.surface3d;
        UpdateSuspender.using(surface3d, () -> {
            surface3d.setXAxis(xAxis);
            surface3d.setYAxis(yAxis);
            surface3d.setZAxis(zAxis);
            Collections.addAll(surface3d.getRenderableSeries(), scatterSeries, surfaceMeshSeries);

            surface3d.getChartModifiers().add(sciChart3DBuilder.newModifierGroup()
                    .withOrbitModifier3D().build()
                    .withZoomExtentsModifier3D().withResetPosition(800, 1000, 800).withResetTarget(0, 25, 0).build()
                    .withPinchZoomModifier3D().build()
                    .build()
            );

            surface3d.getCamera().getPosition().assign(800, 1000, 800);
            surface3d.getCamera().setFarClip(10000);
            surface3d.getWorldDimensions().assign(1000, 200, 1000);
        });
    }

    private Observable<AscData> getLidarData() {
        return Observable.fromCallable(() -> DataManager.getInstance().getLidarData(requireContext()));
    }

    private PointMetadataProvider3D createPointMetadataProvider(double min, double max, AscData lidarData) {
        final PointMetadataProvider3D metadataProvider3D = new PointMetadataProvider3D();
        final ColorMap colorMap = new ColorMap(
                new int[]{0xFF1E90FF, 0xFF32CD32, Orange, Red, Purple},
                new float[]{0.0f, 0.2f, 0.5f, 0.7f, 1f}
        );
        final IntegerValues colors = new IntegerValues();
        colorMap.lerpColorsForValues(colors, lidarData.yValues, min, max);

        final int[] colorItems = colors.getItemsArray();
        for (int i = 0, size = colors.size(); i < size; i++) {
            metadataProvider3D.metadata.add(new PointMetadata3D(colorItems[i]));
        }

        return metadataProvider3D;
    }
}

< BACK TO ALL ANDROID CHART CHART EXAMPLES

ANDROID CHART EXAMPLES

2D Charts

Basic Chart Types
Chart Annotations
Create a Multiseries Chart
Create Custom Animations
Create Custom Charts
Create Realtime Charts
Create Stock Charts
Legends
Link Multiple Charts
Manipulate Series
Modify Axis Behavior
Styling and Theming
Tooltips and Hit Test
Zoom and Pan a Chart

3D Charts

Axis3D
Basic Chart Types
Create Custom Charts
Create Surface Mesh Chart
Manipulate series
Realtime 3D Charts
Style 3D Chart
Tooltips and Hit Test 3D Charts
Zoom and Pan 3D Chart

Featured Apps

Medical Charts
Performance Demos
Scientific Charts