Package org.jungrapht.samples

Class LensVertexImageShaperDemo

  • All Implemented Interfaces:
    ImageObserver, MenuContainer, Serializable, Accessible
    public class LensVertexImageShaperDemo
extends JPanel
    Demonstrates the use of images to represent graph vertices. The images are added to the DefaultGraphLabelRenderer and can either be offset from the vertex, or centered on the vertex. Additionally, the relative positioning of the label and image is controlled by subclassing the DefaultGraphLabelRenderer and setting the appropriate properties on its JLabel superclass FancyGraphLabelRenderer

    The images used in this demo (courtesy of slashdot.org) are rectangular but with a transparent background. When vertices are represented by these images, it looks better if the actual shape of the opaque part of the image is computed so that the edge arrowheads follow the visual shape of the image. This demo uses the FourPassImageShaper class to compute the Shape from an image with transparent background.

    Author:
    Tom Nelson
    See Also:
    Serialized Form

    • Constructor Detail

      • LensVertexImageShaperDemo

        public LensVertexImageShaperDemo()
        create an instance of a simple graph with controls to demo the zoom features.

    • Method Detail

      • main

        public static void main​(String[] args)