リビジョン f8402ef5
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import javafx.scene.paint.Color;
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import javafx.scene.transform.Affine;
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import javafx.stage.FileChooser;
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import javafx.util.converter.NumberStringConverter;
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import org.nocrala.tools.gis.data.esri.shapefile.exception.InvalidShapeFileException;
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/**
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private static final Logger logger = Logger.getLogger(HelloMapViewController.class.getName());
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private static final double DOT_PITCH_METER = 0.247 / 1_000;
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private static final Affine IDENTITY_TRANSFORM = new Affine();
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private double SCALE_RATE = 1.4;
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private static final double SCALE_RATE = 1.4;
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@FXML
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private Canvas map;
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private Label scaleLabel;
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@FXML
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private AnchorPane rootPane;
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private Affine transform = new Affine();
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private List<MapPolyline> polylines = new ArrayList<>();
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private DoubleProperty scaleProperty = new SimpleDoubleProperty(1);
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private Point2D dragStartPoint;
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private Point2D translateAtDragStart;
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private Point2D translate = new Point2D(0f, 0f);
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/**
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* シェープファイルをロードする。
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* <p>
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* 現時点ではポリラインにのみ対応。
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*
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* @param event
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*/
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private void handleMapLoadAction(ActionEvent event) {
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FileChooser chooser = new FileChooser();
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chooser.setTitle("Select ESRI Shapefile");
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chooser.setInitialDirectory(Paths.get(System.getProperty("user.home"), "Documents", "mapdata").toFile());
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chooser.setInitialDirectory(Paths.get(System.getProperty("user.dir"), "mapdata").toFile());
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chooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Shapefile", "*.shp"));
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File selected = chooser.showOpenDialog(map.getScene().getWindow());
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if (selected != null) {
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}
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}
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/**
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* 画面の初期化。
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* <p>
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* <ul>
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* <li>縮尺の初期値、縮尺表示ラベルの連動設定
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* <li>Canvasをウィンドウサイズの変更に追従させる設定
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* <li>地図投影座標系から表示座標系へのAffine初期値設定
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* <li>スクロール（マウスホイール）操作で地図拡大縮小する設定
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* <li>マウスドラッグ操作で地図移動する設定
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* </ul>
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*
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* @param url
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* @param rb
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*/
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@Override
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public void initialize(URL url, ResourceBundle rb) {
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scaleLabel.textProperty().bindBidirectional(scaleProperty, new NumberStringConverter());
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scaleProperty.addListener((target, oldValue, newValue) -> {
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scaleLabel.setText(String.format("Scale: 1/%,d", (int) (1 / (newValue.doubleValue() * DOT_PITCH_METER))));
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});
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scaleProperty.set(1 / mapToScale(10_000_000));
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map.widthProperty().bind(rootPane.widthProperty().subtract(128));
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map.heightProperty().bind(rootPane.heightProperty());
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map.widthProperty().addListener(ev -> drawMap());
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});
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}
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/**
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* 地図描画メソッド。
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*/
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private void drawMap() {
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logger.info(() -> String.format("transform=%s", transform));
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gc.setTransform(transform);
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gc.setStroke(Color.BROWN);
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gc.setLineWidth(1); // / scaleProperty.get());
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for (MapPolyline shape : polylines) {
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gc.strokePolyline(shape.getxPoints(), shape.getyPoints(), shape.getNumPoints());
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}
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polylines.stream().forEach(shape
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-> gc.strokePolyline(shape.getxPoints(), shape.getyPoints(), shape.getNumPoints())
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);
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logger.info("after draw");
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}
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/**
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* 地図クリアメソッド。
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*/
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private void clearMap() {
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GraphicsContext gc = map.getGraphicsContext2D();
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gc.setTransform(IDENTITY_TRANSFORM);
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地図の縮尺表示を地図っぽくし、初期縮尺を小縮尺に、また、地図色味調整した。