/**
* True if the element should be visible on screen. The method used is to transform the center of
* the element (which is always in graph units) using the camera actual transformation to put it
* in pixel units. Then to look in the style sheet the size of the element and to test if its
* enclosing rectangle intersects the view port. For edges, its two nodes are used. As a speed-up
* by default if the camera is in automatic fitting mode, all element should be visible, and the
* test always returns true.
*
* @param element The element to test.
* @return True if the element is visible and therefore must be rendered.
*/
public boolean isVisible(GraphicElement element) {
if (autoFit) {
return ((!element.hidden)
&& (element.style.getVisibilityMode() != StyleConstants.VisibilityMode.HIDDEN));
} else {
switch (element.getSelectorType()) {
case NODE:
return !nodeInvisible.contains(element.getId());
case EDGE:
return isEdgeVisible((GraphicEdge) element);
case SPRITE:
return isSpriteVisible((GraphicSprite) element);
default:
return false;
}
}
}
