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    <p>I wanted to automatically update the satellite view relatively to a VisualizationViewer with picking support enabled. </p> <p>I have finally adopted another solution: no automatic update of the satellite view but a pan using mouse button 2, and a zoom using CTRL+Mouse_Wheel.</p> <p>Here is the class, it may be helpful... :</p> <pre><code>public class SatelliteVisualizationViewerMouseControler implements MouseListener, MouseMotionListener, MouseWheelListener { private SatelliteVisualizationViewer&lt;SVertex, PEdge&gt; vv; private Point drag_point; private double zoom_factor = 0.1; public SatelliteVisualizationViewerMouseControler( SatelliteVisualizationViewer&lt;SVertex, PEdge&gt; vv) { this.vv = vv; } @Override public void mouseDragged(MouseEvent e) { if (drag_point != null) { Point2D l_drag_point = vv.getRenderContext() .getMultiLayerTransformer() .inverseTransform(Layer.LAYOUT, drag_point); Point2D l_e_point = vv.getRenderContext() .getMultiLayerTransformer() .inverseTransform(Layer.LAYOUT, e.getPoint()); double delta_x = l_e_point.getX() - l_drag_point.getX(); double delta_y = l_e_point.getY() - l_drag_point.getY(); double scale = vv.getRenderContext().getMultiLayerTransformer() .getTransformer(Layer.VIEW).getScale(); vv.getRenderContext().getMultiLayerTransformer() .getTransformer(Layer.LAYOUT) .translate(delta_x * (1 / scale), delta_y * (1 / scale)); drag_point = e.getPoint(); } } @Override public void mouseMoved(MouseEvent e) { } @Override public void mouseClicked(MouseEvent e) { } @Override public void mouseEntered(MouseEvent e) { } @Override public void mouseExited(MouseEvent e) { } @Override public void mousePressed(MouseEvent e) { if (e.getButton() == MouseEvent.BUTTON2) { drag_point = e.getPoint(); } } @Override public void mouseReleased(MouseEvent e) { if (e.getButton() == MouseEvent.BUTTON2) { drag_point = null; } } @Override public void mouseWheelMoved(MouseWheelEvent e) { if (e.getModifiersEx() == MouseEvent.CTRL_DOWN_MASK) { vv.getRenderContext() .getMultiLayerTransformer() .getTransformer(Layer.LAYOUT) .scale(1 + (e.getWheelRotation() * zoom_factor), 1 + (e.getWheelRotation() * zoom_factor), vv.getCenter()); } } } </code></pre>
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    1. POHow to update the size of the layout with Jung when using the picking mode?
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    1. POHow to update the size of the layout with Jung when using the picking mode?
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