Generates an Impulse-response style chart with optional point-marker in code. The FastImpulseRenderableSeries can be used to render an XyDataSeries (which contains one X-point and one Y-point), XyyDataSeries (renders Y values), XyzDataSeries, HlDataSeries and OhlcDataSeries(renders Close values).

Impulse Chart can be used to visualize Digital Filter responses, or scientific charts, for instance, mass spectra.

Tip!

You can add optional data-point markers to a impulse series using the PointMarker API. This is very performant and uses the same bitmap rendering as our Scatter-Charts.

// Kotlin: ImpulseChartFragment.kt

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// ImpulseChartFragment.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.examples2d.basicChartTypes.kt

import android.view.animation.DecelerateInterpolator
import com.scichart.charting.visuals.SciChartSurface
import com.scichart.data.model.DoubleRange
import com.scichart.examples.data.DataManager
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment
import com.scichart.examples.utils.scichartExtensions.*

class ImpulseChartFragment : ExampleSingleChartBaseFragment() {

    override fun initExample(surface: SciChartSurface) {
        val ds1Points = DataManager.getInstance().getDampedSinewave(1.0, 0.05, 50, 5)

        surface.suspendUpdates {
            xAxes { numericAxis { growBy = DoubleRange(0.1, 0.1) }}
            yAxes { numericAxis { growBy = DoubleRange(0.1, 0.1) }}
            renderableSeries {
                fastImpulseRenderableSeries {
                    xyDataSeries<Double, Double> {
                        append(ds1Points.xValues, ds1Points.yValues)
                    }
                    strokeStyle = SolidPenStyle(0xFF0066FF)
                    ellipsePointMarker {
                        setSize(10)
                        strokeStyle = SolidPenStyle(0xFF0066FF)
                        fillStyle = SolidBrushStyle(0xFF0066FF)
                    }

                    waveAnimation { interpolator = DecelerateInterpolator() }
                }
            }
            chartModifiers { defaultModifiers() }
        }
    }
}

// Java: ImpulseChartFragment.java

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// ImpulseChartFragment.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.examples2d.basicChartTypes;

import android.view.animation.DecelerateInterpolator;

import androidx.annotation.NonNull;

import com.scichart.charting.model.dataSeries.IXyDataSeries;
import com.scichart.charting.visuals.SciChartSurface;
import com.scichart.charting.visuals.axes.IAxis;
import com.scichart.charting.visuals.pointmarkers.EllipsePointMarker;
import com.scichart.charting.visuals.renderableSeries.FastImpulseRenderableSeries;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.drawing.utility.ColorUtil;
import com.scichart.examples.data.DataManager;
import com.scichart.examples.data.DoubleSeries;
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment;

import java.util.Collections;

public class ImpulseChartFragment extends ExampleSingleChartBaseFragment {

    @Override
    protected void initExample(@NonNull SciChartSurface surface) {
        final IAxis xBottomAxis = sciChartBuilder.newNumericAxis().withGrowBy(0.1d, 0.1d).build();
        final IAxis yRightAxis = sciChartBuilder.newNumericAxis().withGrowBy(0.1d, 0.1d).build();

        final DoubleSeries ds1Points = DataManager.getInstance().getDampedSinewave(1.0, 0.05, 50, 5);
        final IXyDataSeries<Double, Double> dataSeries = sciChartBuilder.newXyDataSeries(Double.class, Double.class).build();
        dataSeries.append(ds1Points.xValues, ds1Points.yValues);

        final EllipsePointMarker pointMarker = sciChartBuilder.newPointMarker(new EllipsePointMarker())
                .withSize(10, 10)
                .withStroke(ColorUtil.argb(0xFF, 0x00, 0x66, 0xFF), 1)
                .withFill(ColorUtil.argb(0xFF, 0x00, 0x66, 0xFF))
                .build();

        final FastImpulseRenderableSeries rSeries = sciChartBuilder.newImpulseSeries()
                .withDataSeries(dataSeries)
                .withStrokeStyle(0xFF0066FF)
                .withPointMarker(pointMarker)
                .build();

        UpdateSuspender.using(surface, () -> {
            Collections.addAll(surface.getXAxes(), xBottomAxis);
            Collections.addAll(surface.getYAxes(), yRightAxis);
            Collections.addAll(surface.getRenderableSeries(), rSeries);
            Collections.addAll(surface.getChartModifiers(), sciChartBuilder.newModifierGroupWithDefaultModifiers().build());

            sciChartBuilder.newAnimator(rSeries).withWaveTransformation().withInterpolator(new DecelerateInterpolator()).withDuration(3000).withStartDelay(350).start();
        });
    }
}

< BACK TO ALL ANDROID CHART CHART EXAMPLES