📄 viewlimits.java
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box.add(hbox); label = new JLabel("<html><b>Pitch Limits</b></html>"); label.setAlignmentX(Component.LEFT_ALIGNMENT); box.add(label); hbox = Box.createHorizontalBox(); hbox.setAlignmentX(Component.LEFT_ALIGNMENT); hbox.add(new JLabel("Min/Max")); hbox.add(this.minPitch); hbox.add(this.maxPitch); box.add(hbox); label = new JLabel("<html><b>Zoom Limits</b></html>"); label.setAlignmentX(Component.LEFT_ALIGNMENT); box.add(label); hbox = Box.createHorizontalBox(); hbox.setAlignmentX(Component.LEFT_ALIGNMENT); hbox.add(new JLabel("Min/Max")); hbox.add(this.minZoom); hbox.add(this.maxZoom); box.add(hbox); controlPanel.add(box, BorderLayout.NORTH); } this.getLayerPanel().add(controlPanel, BorderLayout.SOUTH); JMenuBar menuBar = new JMenuBar(); { JMenu menu = new JMenu("File"); JMenuItem item = new JMenuItem("Open"); item.setActionCommand(LOAD); item.addActionListener(this.controller); menu.add(item); item = new JMenuItem("Save"); item.setActionCommand(SAVE); item.addActionListener(this.controller); menu.add(item); menuBar.add(menu); } this.setJMenuBar(menuBar); } protected JSpinner createDoubleSpinner(final String actionCommand, double initialValue, double min, double max) { final JSpinner spinner = new JSpinner(new SpinnerNumberModel( initialValue, min, max, 0.01)); spinner.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent changeEvent) { ActionEvent actionEvent = new ActionEvent(spinner, 0, actionCommand); actionPerformed(actionEvent); } }); Dimension preferredSize = spinner.getPreferredSize(); preferredSize.width = 70; spinner.setPreferredSize(preferredSize); return spinner; } protected JSpinner createAngleSpinner(final String actionCommand, Angle initialValue, Angle min, Angle max) { return createDoubleSpinner(actionCommand, initialValue.degrees, min.degrees, max.degrees); } } public static class Controller implements ActionListener { protected AppFrame appFrame; protected SurfaceSector surfaceSector; protected RenderableLayer layer; protected static final Sector DEFAULT_SECTOR_LIMITS = Sector.fromDegrees(40, 50, -130, -120); public Controller(AppFrame appFrame) { this.appFrame = appFrame; this.surfaceSector = new SurfaceSector(); this.surfaceSector.getAttributes().setInteriorMaterial(Material.WHITE); this.surfaceSector.getAttributes().setOutlineMaterial(Material.GREEN); this.surfaceSector.getAttributes().setInteriorOpacity(0.1); this.surfaceSector.getAttributes().setOutlineOpacity(0.7); this.surfaceSector.getAttributes().setOutlineWidth(3); this.layer = new SurfaceShapeLayer(); this.layer.setPickEnabled(false); this.layer.addRenderable(this.surfaceSector); insertBeforePlacenames(this.appFrame.getWwd(), this.layer); OrbitView view = this.getOrbitView(); if (view != null) { OrbitViewLimits limits = view.getOrbitViewLimits(); if (limits != null) { Globe globe = this.appFrame.getWwd().getModel().getGlobe(); double maxZoom = 3 * globe.getRadius(); limits.setCenterLocationLimits(DEFAULT_SECTOR_LIMITS); limits.setZoomLimits(0, maxZoom); BasicOrbitViewLimits.applyLimits(view, limits); } } } @SuppressWarnings({"StringEquality"}) public void actionPerformed(ActionEvent actionEvent) { if (actionEvent == null) { return; } String actionCommand = actionEvent.getActionCommand(); if (actionCommand == null) { return; } if (actionCommand == SECTOR_LIMITS_CHANGED || actionCommand == HEADING_LIMITS_CHANGED || actionCommand == PITCH_LIMITS_CHANGED || actionCommand == ZOOM_LIMITS_CHANGED) { this.updateViewLimits(); } else if (actionCommand == LOAD) { this.loadObjects(); } else if (actionCommand == SAVE) { this.saveObjects(); } } public void updateViewLimits() { OrbitView view = this.getOrbitView(); if (view == null) return; OrbitViewLimits limits = view.getOrbitViewLimits(); if (limits == null) return; Sector sector = this.appFrame.getSectorLimits(); if (sector != null) limits.setCenterLocationLimits(sector); Angle[] angles = this.appFrame.getHeadingLimits(); if (angles != null) limits.setHeadingLimits(angles[0], angles[1]); angles = this.appFrame.getPitchLimits(); if (angles != null) limits.setPitchLimits(angles[0], angles[1]); double[] values = this.appFrame.getZoomLimits(); if (values != null) limits.setZoomLimits(values[0], values[1]); BasicOrbitViewLimits.applyLimits(view, limits); this.updateRenderables(); } public void saveObjects() { JFileChooser fc = new JFileChooser(); fc.setCurrentDirectory(new File(Configuration.getUserHomeDirectory())); fc.setFileSelectionMode(JFileChooser.FILES_ONLY); fc.setMultiSelectionEnabled(false); int status = fc.showSaveDialog(this.appFrame); if (status != JFileChooser.APPROVE_OPTION) return; File file = fc.getSelectedFile(); if (file == null) return; View view = this.appFrame.getWwd().getView(); String xmlString = view.getRestorableState(); WWIO.writeTextFile(xmlString, file); } public void loadObjects() { JFileChooser fc = new JFileChooser(); fc.setCurrentDirectory(new File(Configuration.getUserHomeDirectory())); fc.setFileSelectionMode(JFileChooser.FILES_ONLY); fc.setMultiSelectionEnabled(false); int status = fc.showOpenDialog(this.appFrame); if (status != JFileChooser.APPROVE_OPTION) return; File file = fc.getSelectedFile(); if (file == null) return; View view = this.appFrame.getWwd().getView(); String xmlString = WWIO.readTextFile(file); view.restoreState(xmlString); if (view instanceof OrbitView) { OrbitView orbitView = (OrbitView) view; BasicOrbitViewLimits.applyLimits(orbitView, orbitView.getOrbitViewLimits()); } this.appFrame.updateComponents(); } public OrbitView getOrbitView() { View view = this.appFrame.getWwd().getView(); return (view != null && view instanceof OrbitView) ? (OrbitView) view : null; } public void updateRenderables() { View view = this.appFrame.getWwd().getView(); if (view == null || !(view instanceof OrbitView)) { return; } OrbitView orbitView = (OrbitView) view; OrbitViewLimits limits = orbitView.getOrbitViewLimits(); this.surfaceSector.setSector(limits.getCenterLocationLimits()); this.appFrame.getWwd().redraw(); } } public static void main(String[] args) { ApplicationTemplate.start("View Limits", AppFrame.class); }}⌨️ 快捷键说明
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