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// 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 Modify Camera3D Properties

This example presents how Camera 3D work in SciChart for Android. It shows how different properties define the view port as seen by the camera.

Read more in our documentation article about SciChart Android 3D SciChartSurface Camera.

Android 3D Modify Camera3D Properties

// Source Code

The full source code for the Android 3D Modify Camera3D Properties 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 Modify Camera3D Properties - View Source Code for this example

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

// example_chart3d_camera_properties_fragment.xml

View on Github 
<?xml version="1.0" encoding="utf-8"?>
<!--*************************************************************************-->
<!-- SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved. -->
<!--   -->
<!-- Web: http://www.scichart.com -->
<!-- Support: support@scichart.com -->
<!-- Sales:   sales@scichart.com -->
<!--  -->
<!-- example_chart3d_camera_properties_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">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <RadioGroup
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:orientation="horizontal">

            <RadioButton
                android:id="@+id/perspectiveRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:checked="true"
                android:text="@string/perspective"
                android:textColor="@android:color/white" />

            <RadioButton
                android:id="@+id/orthogonalRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/orthogonal"
                android:textColor="@android:color/white" />
        </RadioGroup>

        <RadioGroup
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:orientation="horizontal">

            <RadioButton
                android:id="@+id/lhsRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:checked="true"
                android:text="@string/lhs"
                android:textColor="@android:color/white" />

            <RadioButton
                android:id="@+id/rhsRadioButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/rhs"
                android:textColor="@android:color/white" />
        </RadioGroup>

    </RelativeLayout>

    <TextView
        android:id="@+id/positionText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="@dimen/activity_vertical_margin"
        android:layout_marginBottom="@dimen/activity_vertical_margin">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/pitch"
            android:textColor="@android:color/white" />

        <com.scichart.examples.components.SeekBarWithText
            android:id="@+id/pitchSeekBar"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:max="360" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/activity_vertical_margin"
        android:layout_marginBottom="@dimen/activity_vertical_margin"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/yaw"
            android:textColor="@android:color/white" />

        <com.scichart.examples.components.SeekBarWithText
            android:id="@+id/yawSeekBar"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:max="360" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/perspectiveProperties"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/radius"
                android:textColor="@android:color/white" />

            <com.scichart.examples.components.SeekBarWithText
                android:id="@+id/radiusSeekBar"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:max="3000" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/activity_vertical_margin"
            android:layout_marginBottom="@dimen/activity_vertical_margin"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/fov"
                android:textColor="@android:color/white" />

            <com.scichart.examples.components.SeekBarWithText
                android:id="@+id/fovSeekBar"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:max="90" />
        </LinearLayout>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/orthogonalProperties"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/activity_vertical_margin"
            android:layout_marginBottom="@dimen/activity_vertical_margin"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/orthowidth"
                android:textColor="@android:color/white" />

            <com.scichart.examples.components.SeekBarWithText
                android:id="@+id/orthoWidthSeekBar"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:max="1000" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/activity_vertical_margin"
            android:layout_marginBottom="@dimen/activity_vertical_margin"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/orthoheight"
                android:textColor="@android:color/white" />

            <com.scichart.examples.components.SeekBarWithText
                android:id="@+id/orthoHeightSeekBar"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:max="1000" />
        </LinearLayout>

    </LinearLayout>

    <com.scichart.charting3d.visuals.SciChartSurface3D
        android:id="@+id/chart3d"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>

</LinearLayout>

// ModifyCamera3DPropertiesFragment.java

View on Github 
//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2019. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// ModifyCamera3DPropertiesFragment.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 android.view.View;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.TextView;

import com.scichart.charting3d.common.math.Vector3;
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.camera.ICameraController;
import com.scichart.charting3d.visuals.camera.ICameraUpdateListener;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.core.utility.Dispatcher;
import com.scichart.examples.R;
import com.scichart.examples.fragments.base.ExampleBaseFragment;
import com.scichart.examples.utils.SeekBarChangeListenerBase;

import java.text.DecimalFormat;

import butterknife.BindView;
import butterknife.OnClick;

public class ModifyCamera3DPropertiesFragment extends ExampleBaseFragment implements ICameraUpdateListener {
    @BindView(R.id.chart3d)
    SciChartSurface3D surface3d;

    @BindView(R.id.positionText)
    TextView positionText;

    @BindView(R.id.pitchSeekBar)
    SeekBar pitchSeekBar;

    @BindView(R.id.yawSeekBar)
    SeekBar yawSeekBar;

    @BindView(R.id.radiusSeekBar)
    SeekBar radiusSeekBar;

    @BindView(R.id.fovSeekBar)
    SeekBar fovSeekBar;

    @BindView(R.id.orthoWidthSeekBar)
    SeekBar orthoWidthSeekBar;

    @BindView(R.id.orthoHeightSeekBar)
    SeekBar orthoHeightSeekBar;

    @BindView(R.id.perspectiveProperties)
    LinearLayout perspectiveProperties;

    @BindView(R.id.orthogonalProperties)
    LinearLayout orthogonalProperties;

    @Override
    protected int getLayoutId() {
        return R.layout.example_chart3d_camera_properties_fragment;
    }

    @Override
    protected void initExample() {
        final Camera3D camera = sciChart3DBuilder.newCamera3D().build();

        camera.setCameraUpdateListener(this);

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

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

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

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

        setUpSeekBarListeners();
    }

    private void setUpSeekBarListeners() {
        final ICameraController camera = surface3d.getCamera();

        updateUIWithValuesFrom(camera);

        pitchSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setOrbitalPitch(progress);
            }
        });

        yawSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setOrbitalYaw(progress);
            }
        });

        radiusSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setRadius(progress);
            }
        });

        fovSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setFieldOfView(progress);
            }
        });

        orthoWidthSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setOrthoWidth(progress);
            }
        });

        orthoHeightSeekBar.setOnSeekBarChangeListener(new SeekBarChangeListenerBase() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                surface3d.getCamera().setOrthoHeight(progress);
            }
        });

        orthogonalProperties.setVisibility(View.GONE);
    }

    @Override
    public void onCameraUpdated(final ICameraController camera) {
        camera.setOrbitalPitch(constrainAngle(camera.getOrbitalPitch()));
        camera.setOrbitalYaw(constrainAngle(camera.getOrbitalYaw()));

        Dispatcher.postOnUiThread(new Runnable() {
            @Override
            public void run() {
                updateUIWithValuesFrom(camera);
            }
        });
    }

    private float constrainAngle(float angle) {
        if(angle < 0) {
            angle += 360;
        } else if (angle > 360) {
            angle -= 360;
        }

        return angle;
    }

    private void updateUIWithValuesFrom(ICameraController camera) {
        final DecimalFormat format = new DecimalFormat("0.0");

        final Vector3 position = camera.getPosition();

        final StringBuilder positionTextBuilder = new StringBuilder();

        positionTextBuilder.append("Position: ")
                .append("X=").append(format.format(position.getX()))
                .append(", Y=").append(format.format(position.getY()))
                .append(", Z=").append(format.format(position.getZ()));

        positionText.setText(positionTextBuilder);

        trySetSeekBarProgress(pitchSeekBar, camera.getOrbitalPitch());
        trySetSeekBarProgress(yawSeekBar, camera.getOrbitalYaw());
        trySetSeekBarProgress(radiusSeekBar, camera.getRadius());
        trySetSeekBarProgress(fovSeekBar, camera.getFieldOfView());
        trySetSeekBarProgress(orthoWidthSeekBar, camera.getOrthoWidth());
        trySetSeekBarProgress(orthoHeightSeekBar, camera.getOrthoHeight());
    }

    private void trySetSeekBarProgress(SeekBar seekBar, float value) {
        final int newProgress = Math.round(value);
        if(seekBar.getProgress() != newProgress) {
            seekBar.setProgress(newProgress);
        }
    }

    @OnClick(R.id.lhsRadioButton)
    public void onLeftHandCoorinateSystemSelected() {
        surface3d.setIsLeftHandedCoordinateSystem(true);
    }

    @OnClick(R.id.rhsRadioButton)
    public void onRightHandCoorinateSystemSelected() {
        surface3d.setIsLeftHandedCoordinateSystem(false);
    }

    @OnClick(R.id.perspectiveRadioButton)
    public void onPerspectiveCameraEnabled() {
        surface3d.getCamera().toPerspective();

        perspectiveProperties.setVisibility(View.VISIBLE);
        orthogonalProperties.setVisibility(View.GONE);
    }

    @OnClick(R.id.orthogonalRadioButton)
    public void onOrthogonalCameraEnabled() {
        surface3d.getCamera().toOrthogonal();

        perspectiveProperties.setVisibility(View.GONE);
        orthogonalProperties.setVisibility(View.VISIBLE);
    }
}

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