Question

I am attempting to insert a Canvas3D object inside a Swing JPanel, but the code doesn’t seem to be working (i.e. nothing happens):

         Canvas3D canvas = new Canvas3D(SimpleUniverse.getPreferredConfiguration());         SimpleUniverse universe = new SimpleUniverse(canvas);         BranchGroup root = new BranchGroup();         root.addChild(new ColorCube());         universe.addBranchGraph(root);         universe.getViewingPlatform().setNominalViewingTransform();         canvasPanel.add(canvas); 

What am I missing? The JPanel was created using NetBean’s Visual Editor.

Answer 1

Probably you have to set a layout manager on the panel, which automatically expands the child components to the full area. A JPanel has a FlowLayout by default, which does not expand the child components. You could try a BorderLayout instead by calling:

canvasPanel.setLayout(new BorderLayout());