correct way to move a node by dragging in javafx 2?

Question

I\'m converting a Swing/Graphics2D app with a lot of custom painting to a JavaFX2 app. Although I absolutely love the new API, I seem to have a performance problem when pain

Answer 1

There's this "cacheHint" property, available on all Nodes and that may help ?

http://docs.oracle.com/javafx/2/api/javafx/scene/Node.html#cacheHintProperty

Under certain circumstances, such as animating nodes that are very expensive to render, it is desirable to be able to perform transformations on the node without having to regenerate the cached bitmap. An option in such cases is to perform the transforms on the cached bitmap itself.

This technique can provide a dramatic improvement to animation performance, though may also result in a reduction in visual quality. The cacheHint variable provides a hint to the system about how and when that trade-off (visual quality for animation performance) is acceptable.

If your ellipse remains the same the whole time, but is redrawn every time you move it by one pixel, this seems to be a huge slowdown.