Examples of diva.canvas.FigureLayer.pick()

diva.canvas.FigureLayer.pick()
Get the picked figure. This method recursively traverses the tree until it finds a figure that is "hit" by the region. Note that a region is given instead of a point so that "hysteresis" can be implemented. If no figure is picked, return null. The region should not have zero size, or no figure will be hit.

            // so we have to use a lower level mechanism.
            double halo = layer.getPickHalo();
            double width = halo * 2;
            Rectangle2D region = new Rectangle2D.Double(transformedPoint.getX()
                    - halo, transformedPoint.getY() - halo, width, width);
            CanvasComponent figureUnderMouse = layer.pick(region);


            // Find a user object belonging to the figure under the mouse
            // or to any figure containing it (it may be a composite figure).
            Object objectUnderMouse = null;

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