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import javafx.animation.AnimationTimer;
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import javafx.application.Application;
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import javafx.beans.property.DoubleProperty;
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import javafx.beans.property.SimpleDoubleProperty;
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import javafx.geometry.Insets;
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import javafx.geometry.VPos;
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import javafx.scene.AmbientLight;
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import javafx.scene.Group;
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import javafx.scene.PerspectiveCamera;
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import javafx.scene.PointLight;
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import javafx.scene.Scene;
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import javafx.scene.SubScene;
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import javafx.scene.control.Label;
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import javafx.scene.control.Slider;
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import javafx.scene.image.Image;
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import javafx.scene.layout.AnchorPane;
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import javafx.scene.layout.GridPane;
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import javafx.scene.paint.Color;
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import javafx.scene.paint.PhongMaterial;
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import javafx.scene.shape.Sphere;
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import javafx.scene.transform.Rotate;
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import javafx.scene.transform.Translate;
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import javafx.stage.Stage;
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public class Hello3d extends Application {
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private static final double EARTH_RADIUS = 6378.137 / 2; // WGS84長半径[km]
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//private final Image earthImage = new Image(getClass().getResourceAsStream("physical-free-world-map-b1.jpg"));
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private final Image earthImage = new Image(getClass().getResourceAsStream("bluemarble_cyrindricalEqualArea_2048.png"));
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private double azimuth;
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private long previousHandledTime;
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private final DoubleProperty azimuthRateProperty = new SimpleDoubleProperty(10d);
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private final DoubleProperty elevationProperty = new SimpleDoubleProperty(0d);
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private final DoubleProperty orbitalAltitudeProperty = new SimpleDoubleProperty(4_000d);
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private final Rotate cameraRotateX = new Rotate(0d, Rotate.X_AXIS);
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private final Rotate cameraRotateY = new Rotate(0d, Rotate.Y_AXIS);
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private final Rotate cameraRotateZ = new Rotate(0d, Rotate.Z_AXIS);
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private final Translate cameraTranslate = new Translate(0d, 0d, 0d);
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@Override
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public void start(final Stage stage) {
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final SubScene earthScene = createEarthScene();
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final GridPane panel = createUIPanel();
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// レイアウト
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final AnchorPane root = new AnchorPane();
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root.setTopAnchor(earthScene, 0d);
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root.setLeftAnchor(earthScene, 0d);
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root.setTopAnchor(panel, 0d);
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root.setRightAnchor(panel, 0d);
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root.getChildren().addAll(earthScene, panel);
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final Scene scene = new Scene(root, 1100, 600, Color.BLACK);
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stage.setScene(scene);
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stage.setTitle("Hello JavaFX 3D World");
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stage.show();
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AnimationTimer timer = new AnimationTimer() {
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@Override
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public void handle(long now) {
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update(now);
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}
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};
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timer.start();
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}
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/**
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* カメラ位置を更新する。
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* カメラは原点を中心に (地球半径 + 高度)を半径とし、赤道面(y=0)から
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* 指定した仰角の円軌道を移動する。
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*/
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private void update(long now) {
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if (previousHandledTime == 0) {
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previousHandledTime = now;
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return;
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}
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azimuth += azimuthRateProperty.get() * (now - previousHandledTime) / 1_000_000_000;
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previousHandledTime = now;
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double orbitalRadius = orbitalAltitudeProperty.get() + EARTH_RADIUS;
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cameraTranslate.setZ(-orbitalRadius);
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cameraRotateX.setAngle(elevationProperty.get());
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cameraRotateY.setAngle(-1 * azimuth);
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}
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/**
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* 地球系のモデルを作成
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*/
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private SubScene createEarthScene() {
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final Group earthGroup = new Group();
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// 球体の定義
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final Sphere earth = new Sphere(EARTH_RADIUS);
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earthGroup.getChildren().add(earth);
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// 材質の定義
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final PhongMaterial material = new PhongMaterial();
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material.setDiffuseMap(earthImage);
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earth.setMaterial(material);
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// カメラの定義
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final PerspectiveCamera camera = new PerspectiveCamera(true);
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camera.setFieldOfView(45d);
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camera.setFarClip(100_000d);
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camera.getTransforms().addAll(
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cameraRotateX,
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cameraRotateY,
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cameraRotateZ,
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cameraTranslate
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);
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// 点光源の定義
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final PointLight pointLight = new PointLight(Color.WHITE);
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pointLight.setTranslateX(-2_000d);
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pointLight.setTranslateY(0d);
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pointLight.setTranslateZ(100_000d);
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earthGroup.getChildren().add(pointLight);
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// 環境光の定義
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final AmbientLight ambientLight = new AmbientLight(Color.rgb(80, 80, 80, 0.5));
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earthGroup.getChildren().add(ambientLight);
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// サブシーンの定義
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final SubScene earthScene = new SubScene(earthGroup, 800d, 600d);
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earthScene.setFill(Color.BLACK);
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earthScene.setCamera(camera);
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return earthScene;
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}
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/**
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* 制御UIパネルを作成する。
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*/
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private GridPane createUIPanel() {
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final GridPane grid = new GridPane();
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grid.setHgap(8d);
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grid.setVgap(16d);
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grid.setPadding(new Insets(32d, 10d, 10d, 16d));
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grid.setPrefSize(300d, 600d);
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grid.setStyle("-fx-background-color: midnightblue;");
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final Label azimuthRateLabel = createSliderLabel("回転速度[deg/s]");
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grid.add(azimuthRateLabel, 0, 0);
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grid.setValignment(azimuthRateLabel, VPos.TOP);
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grid.add(createSlider(-30d, 30d, 1d, 10d, 2d, azimuthRateProperty), 1, 0);
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final Label elevationLabel = createSliderLabel("仰角[deg]");
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grid.add(elevationLabel, 0, 1);
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grid.setValignment(elevationLabel, VPos.TOP);
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grid.add(createSlider(-90d, 90d, 0d, 30d, 6d, elevationProperty), 1, 1);
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final Label altitudeLabel = createSliderLabel("高度[km]");
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grid.add(altitudeLabel, 0, 2);
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grid.setValignment(altitudeLabel, VPos.TOP);
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grid.add(createSlider(0d, 30_000d, 200d, 5_000d, 1_000d, orbitalAltitudeProperty), 1, 2);
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return grid;
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}
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/**
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* ラベルを作成する。
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*/
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private Label createSliderLabel(String title) {
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final Label label = new Label(title);
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label.setStyle("-fx-text-fill: aliceblue;");
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return label;
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}
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/**
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* スライダーを生成する。
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*/
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private Slider createSlider(double min, double max, double initial, double major, double minor, DoubleProperty prop) {
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final Slider slider = new Slider(min, max, initial);
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slider.setShowTickMarks(true);
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slider.setShowTickLabels(true);
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slider.setMajorTickUnit(major);
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slider.setBlockIncrement(minor);
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slider.valueProperty().bindBidirectional(prop);
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return slider;
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}
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public static void main(final String... args) {
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launch(args);
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}
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}
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