Java Worldwind SurfaceImage深度/批量分拣
我正在使用WorldWind,试图在同一层中“拾取”多个曲面图像,但不理解为什么它不起作用 我的印象是这样称呼:Java Worldwind SurfaceImage深度/批量分拣,java,worldwind,Java,Worldwind,我正在使用WorldWind,试图在同一层中“拾取”多个曲面图像,但不理解为什么它不起作用 我的印象是这样称呼: this.getWwd().getSceneController().setDeepPickEnabled(true); 将使我能够在同一层中拾取多个可渲染对象。这似乎适用于除SurfaceImage以外的所有其他情况。我还注意到,如果我强制加载SurfaceImage到不同的层中,它将按预期工作 这是我用来测试的代码: public class SurfaceImageViewe
this.getWwd().getSceneController().setDeepPickEnabled(true);
将使我能够在同一层中拾取多个可渲染对象。这似乎适用于除SurfaceImage以外的所有其他情况。我还注意到,如果我强制加载SurfaceImage到不同的层中,它将按预期工作
这是我用来测试的代码:
public class SurfaceImageViewer extends ApplicationTemplate
{
public static class AppFrame extends ApplicationTemplate.AppFrame
{
private JFileChooser fileChooser = new JFileChooser();
private JSlider opacitySlider;
private SurfaceImageLayer layer;
private JLabel statusLabel = new JLabel("status: ready");
public AppFrame()
{
super(true, true, false);
this.getWwd().getSceneController().setDeepPickEnabled(true);
try
{
this.layer = new SurfaceImageLayer();
this.layer.setOpacity(1);
this.layer.setPickEnabled(true);
this.layer.setName("Surface Images");
insertBeforeCompass(this.getWwd(), layer);
this.getControlPanel().add(makeControlPanel(), BorderLayout.SOUTH);
}
catch (Exception e)
{
e.printStackTrace();
}
this.getWwd().addSelectListener(new SelectListener() {
@Override
public void selected(SelectEvent event) {
PickedObjectList pol = AppFrame.this.getWwd().getObjectsAtCurrentPosition();
if(event.isLeftClick()){
System.out.println("POL SIZE "+pol.size());
}
}
});
}
Action openElevationsAction = new AbstractAction("Open Elevation File...")
{
public void actionPerformed(ActionEvent e)
{
int status = fileChooser.showOpenDialog(AppFrame.this);
if (status != JFileChooser.APPROVE_OPTION)
return;
final File imageFile = fileChooser.getSelectedFile();
if (imageFile == null)
return;
Thread t = new Thread(new Runnable()
{
public void run()
{
try
{
CompoundElevationModel cem
= (CompoundElevationModel) getWwd().getModel().getGlobe().getElevationModel();
LocalElevationModel em = new LocalElevationModel();
em.addElevations(imageFile.getPath());
cem.addElevationModel(em);
}
catch (IOException e1)
{
e1.printStackTrace();
}
}
});
t.setPriority(Thread.MIN_PRIORITY);
t.start();
}
};
Action openImageAction = new AbstractAction("Open Image File...")
{
public void actionPerformed(ActionEvent actionEvent)
{
int status = fileChooser.showOpenDialog(AppFrame.this);
if (status != JFileChooser.APPROVE_OPTION)
return;
final File imageFile = fileChooser.getSelectedFile();
if (imageFile == null)
return;
Thread t = new Thread(new Runnable()
{
public void run()
{
try
{
statusLabel.setText("status: Loading image");
// TODO: proper threading
layer.addImage(imageFile.getAbsolutePath());
getWwd().redraw();
statusLabel.setText("status: ready");
}
catch (IOException e)
{
e.printStackTrace();
}
}
});
t.setPriority(Thread.MIN_PRIORITY);
t.start();
}
};
private JPanel makeControlPanel()
{
JPanel controlPanel = new JPanel(new GridLayout(0, 1, 5, 5));
JButton openImageButton = new JButton(openImageAction);
controlPanel.add(openImageButton);
this.opacitySlider = new JSlider();
this.opacitySlider.setMaximum(100);
this.opacitySlider.setValue((int) (layer.getOpacity() * 100));
this.opacitySlider.setEnabled(true);
this.opacitySlider.addChangeListener(new ChangeListener()
{
public void stateChanged(ChangeEvent e)
{
int value = opacitySlider.getValue();
layer.setOpacity(value / 100d);
getWwd().redraw();
}
});
JPanel opacityPanel = new JPanel(new BorderLayout(5, 5));
opacityPanel.setBorder(new EmptyBorder(0, 10, 0, 0));
opacityPanel.add(new JLabel("Opacity"), BorderLayout.WEST);
opacityPanel.add(this.opacitySlider, BorderLayout.CENTER);
controlPanel.add(opacityPanel);
JButton openElevationsButton = new JButton(openElevationsAction);
controlPanel.add(openElevationsButton);
controlPanel.add(statusLabel);
controlPanel.setBorder(new EmptyBorder(15, 15, 15, 15));
return controlPanel;
}
}
public static void main(String[] args)
{
ApplicationTemplate.start("World Wind Surface Images", SurfaceImageViewer.AppFrame.class);
}
}
这两个GeoTiff层叠在一起,我一直在使用它们来测试这一点。当我左键单击两个geotiff时,我希望SelectListener上的println打印出“3”。(我已将GeoTiff上传到可用的zip中)
<> P>旧金山将看到这些区域,见屏幕截图:
更新:
我们发现,批量挑选的示例是围绕AbstractSurfaceObject实例的,但在本例中不适用。对于SurfaceImage实例的处理,setAlwaysOnTop的属性应配置为false,以使选择事件处理光标下的所有元素
通过阅读DeepPick的示例,实际上需要做两件事
{@link gov.nasa.worldwind.SceneController#setdeeppickabled(布尔值)
我花了一点时间才理解第二个,但它似乎与AbstractSurfaceObject类有关
- 我假设你在图层上绘制的东西是AbstractSurfaceObject的子类
import gov.nasa.worldwind.layers.SurfaceImageLayer;
import gov.nasa.worldwind.render.AbstractSurfaceObject;
import gov.nasa.worldwind.render.Renderable;
/**
*SurfaceImageLayer的非常粗略的扩展,它禁用对所有AbstractSurfaceObject的批拾取。
*@作者http://stackoverflow.com/users/5407189/jeremiah
*@自2016年11月26日起
*
*/
公共类MySurfaceImageLayer扩展了SurfaceImageLayer{
@凌驾
公共void addRenderable(Renderable Renderable){
if(AbstractSurfaceObject的可渲染实例){
((AbstractSurfaceObject)renderable).setEnableBatchPicking(false);
}
super.addRenderable(renderable);
}
@凌驾
公共可渲染性(IterableThanks感谢您的关注——不幸的是,表面图像导入程序似乎使用了gov.nasa.worldwind.render.SurfaceImage作为其可渲染对象,而表面图像并未扩展到gov.nasa.worldwind.render.AbstractSurfaceObject。表面图像在批量/深度拾取时似乎被视为特例或其他内容,但我看不出问题出在哪里。感谢您返回AbstractSurfaceObject结果!如果您调试RenderableLayer中的PickSupport引用,它会在光标下找到所有SurfaceImages吗?您可能会在输出中看到“TopPickedObject”,但PickSupport保留所有有效对象的映射要为层选择的对象。如果它知道surfaceImage实例,那么您可能可以调整该类向SceneControl报告的方式。有趣的想法。我将深入研究PickSupport,看看是否可以找到它丢失引用的位置。我想我已经找到了它——当设置为Alwayso时,它会在surfaceImage中沿着不同的代码路径运行nTop是真的。我试过了,事情开始按预期进行!很高兴听到这个消息!祝贺你。
import gov.nasa.worldwind.layers.SurfaceImageLayer;
import gov.nasa.worldwind.render.AbstractSurfaceObject;
import gov.nasa.worldwind.render.Renderable;
/**
* Very Rough extension of SurfaceImageLayer which disables batch picking on all AbstractSurfaceobjects.
* @author http://stackoverflow.com/users/5407189/jeremiah
* @since Nov 26, 2016
*
*/
public class MySurfaceImageLayer extends SurfaceImageLayer {
@Override
public void addRenderable(Renderable renderable) {
if (renderable instanceof AbstractSurfaceObject) {
((AbstractSurfaceObject)renderable).setEnableBatchPicking(false);
}
super.addRenderable(renderable);
}
@Override
public void addRenderables(Iterable<? extends Renderable> renderables) {
for (Renderable r : renderables) {
addRenderable(r);
}
}
}