如何解决如何在JUNG中获得顶点坐标？
| 在Jung中使用EditingModalGraphMouse时，有没有一种方法可以获取顶点坐标？ 我已经使用坐标设置器和吸气剂为顶点创建了一个类，但是我不知道如何使用其特定坐标设置顶点？ （我有一个变压器：变压器）解决方法
以下内容为您提供了有关如何在Jung VisualizationViewer实例上获取笛卡尔坐标的想法...
创建一个内部类，如下所示：
protected class MyGraphMousePlugin extends TranslatingGraphMousePlugin implements MouseListener {
@Override
public void mouseMoved(MouseEvent e) {
final VisualizationViewer<GeoLocationData.Station,GeoLocationData.Link> vv =
(VisualizationViewer<GeoLocationData.Station,GeoLocationData.Link>)e.getSource();
Point2D p = e.getPoint();//vv.getRenderContext().getBasicTransformer().inverseViewTransform(e.getPoint());
GraphElementAccessor<GeoLocationData.Station,GeoLocationData.Link> pickSupport = vv.getPickSupport();
if(pickSupport != null) {
vv.setToolTipText (\"<html>x: \"+p.getX()+\"<br>y: \"+p.getY());
}
}
public MyGraphMousePlugin(int modifiers) {
super(modifiers);
// TODO Auto-generated constructor stub
}
public MyGraphMousePlugin() {
super();
}
}
graphMouse = new DefaultModalGraphMouse<Object,Object>();
vv.setGraphMouse(graphMouse);
vv.addKeyListener(graphMouse.getModeKeyListener());
graphMouse.add(new MyGraphMousePlugin());
protected class MyGraphMousePlugin extends TranslatingGraphMousePlugin implements MouseListener {
@Override
public void mouseMoved(final MouseEvent e) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
final VisualizationViewer<GeoLocationData.Station,GeoLocationData.Link> vv =
(VisualizationViewer<GeoLocationData.Station,GeoLocationData.Link>)e.getSource();
Point2D p = e.getPoint();//vv.getRenderContext().getBasicTransformer().inverseViewTransform(e.getPoint());
GraphElementAccessor<GeoLocationData.Station,GeoLocationData.Link> pickSupport = vv.getPickSupport();
if(pickSupport != null) {
AffineTransform lat =
vv.getRenderContext().getMultiLayerTransformer().getTransformer(Layer.LAYOUT).getTransform();
//AffineTransform vat =
// vv.getRenderContext().getMultiLayerTransformer().getTransformer(Layer.VIEW).getTransform();
//AffineTransform at = new AffineTransform();
double x = p.getX() - lat.getTranslateX(); //;
double y = p.getY() - lat.getTranslateY(); //;
vv.setToolTipText (\"<html>x: \"+x+\"<br>y: \"+y);
}
}
}
);
}
public MyGraphMousePlugin(int modifiers) {
super(modifiers);
// TODO Auto-generated constructor stub
}
public MyGraphMousePlugin() {
super();
}
}
@Override
public void mouseMoved(final MouseEvent e) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
final VisualizationViewer<GeoLocationData.Station,GeoLocationData.Link>)e.getSource();
Point2D p = vv.getRenderContext().getMultiLayerTransformer().inverseTransform(e.getPoint());
double x = p.getX();
double y = p.getY();
vv.setToolTipText (\"<html>x: \"+(int)x+\"<br>y: \"+(int)y);
}
}
);
}
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。