Examples of Path2D

ae.java.awt.geom.Path2D

The {@code Path2D} class provides a simple, yet flexibleshape which represents an arbitrary geometric path. It can fully represent any path which can be iterated by the {@link PathIterator} interface including all of its segmenttypes and winding rules and it implements all of the basic hit testing methods of the {@link Shape} interface.

Use {@link Path2D.Float} when dealing with data that can be representedand used with floating point precision. Use {@link Path2D.Double}for data that requires the accuracy or range of double precision.

{@code Path2D} provides exactly those facilities required forbasic construction and management of a geometric path and implementation of the above interfaces with little added interpretation. If it is useful to manipulate the interiors of closed geometric shapes beyond simple hit testing then the {@link Area} class provides additional capabilitiesspecifically targeted at closed figures. While both classes nominally implement the {@code Shape}interface, they differ in purpose and together they provide two useful views of a geometric shape where {@code Path2D}deals primarily with a trajectory formed by path segments and {@code Area} deals more with interpretation and manipulationof enclosed regions of 2D geometric space.

The {@link PathIterator} interface has more detailed descriptionsof the types of segments that make up a path and the winding rules that control how to determine which regions are inside or outside the path. @author Jim Graham @since 1.6

java.awt.geom.Path2D

     * @param polygon List of nodes forming polygon (EastNorth coordinates)
     * @return Area for the given list of nodes
     * @since 6841
     */
    public static Area getArea(List<Node> polygon) {
        Path2D path = new Path2D.Double();


        boolean begin = true;
        for (Node n : polygon) {
            EastNorth en = n.getEastNorth();
            if (en != null) {
                if (begin) {
                    path.moveTo(en.getX(), en.getY());
                    begin = false;
                } else {
                    path.lineTo(en.getX(), en.getY());
                }
            }
        }
        if (!begin) {
            path.closePath();
        }


        return new Area(path);
    }

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Examples of Path2D

Examples of java.awt.geom.Path2D