Generate Polygon : Shape « 2D Graphics GUI « Java

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Java » 2D Graphics GUI » ShapeScreenshots 
Generate Polygon
    
import java.awt.Polygon;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;

/*
 * $Id: ShapeUtils.java,v 1.4 2008/10/14 22:31:46 rah003 Exp $
 *
 * Copyright 2006 Sun Microsystems, Inc., 4150 Network Circle,
 * Santa Clara, California 95054, U.S.A. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
public class Utils {

  public static Shape generatePolygon(int sides, int outsideRadius, boolean normalize) {
    return generatePolygon(sides, outsideRadius, 0, normalize);
  }

  public static Shape generatePolygon(int sides, int outsideRadius, int insideRadius,
      boolean normalize) {
    Shape shape = generatePolygon(sides, outsideRadius, insideRadius);
    if (normalize) {
      Rectangle2D bounds = shape.getBounds2D();
      GeneralPath path = new GeneralPath(shape);
      shape = path.createTransformedShape(AffineTransform.getTranslateInstance(-bounds.getX(),
          -bounds.getY()));
    }
    return shape;
  }

  public static Shape generatePolygon(int sides, int outsideRadius, int insideRadius) {

    if (sides < 3) {
      return new Ellipse2D.Float(001010);
    }

    AffineTransform trans = new AffineTransform();
    Polygon poly = new Polygon();
    for (int i = 0; i < sides; i++) {
      trans.rotate(Math.PI * (floatsides / 2);
      Point2D out = trans.transform(new Point2D.Float(0, outsideRadius)null);
      poly.addPoint((intout.getX()(intout.getY());
      trans.rotate(Math.PI * (floatsides / 2);
      if (insideRadius > 0) {
        Point2D in = trans.transform(new Point2D.Float(0, insideRadius)null);
        poly.addPoint((intin.getX()(intin.getY());
      }
    }

    return poly;
  }
}

   
    
    
    
  
Related examples in the same category
1.Creating Basic Shapes
2.fillRect (int, int, int, int) method draws a solid rectangle
3.Creating a Shape Using Lines and Curves
4.Combining Shapes
5.Draw rectangles, use the drawRect() method. To fill rectangles, use the fillRect() method
6.Draw lineDraw line
7.Draw a PolygonDraw a Polygon
8.Draw an oval outline
9.Draw a (Round)rectangleDraw a (Round)rectangle
10.Fill a polygonFill a polygon
11.Fill a solid oval
12.Fill a (Round)rectangleFill a (Round)rectangle
13.Change fontChange font
14.Draw rectangle 2Draw rectangle 2
15.Draw ArcDraw Arc
16.Draw EllipseDraw Ellipse
17.Fill a Rectangle 2Fill a Rectangle 2
18.Fill Arc 2Fill Arc 2
19.Draw textDraw text
20.Draw unicode string Draw unicode string
21.Shape combineShape combine
22.EffectsEffects
23.Mouse drag and drop to drawMouse drag and drop to draw
24.Arc demonstration: scale, move, rotate, sheerArc demonstration: scale, move, rotate, sheer
25.Hypnosis SpiralHypnosis Spiral
26.GlyphVector.getNumGlyphs()
27.Resize a shape
28.Rectangle with rounded corners drawn using Java 2D Graphics API
29.Compares two ellipses and returns true if they are equal or both null.
30.Compares two lines are returns true if they are equal or both null.
31.Creates a diagonal cross shape.
32.Creates a diamond shape.
33.Creates a new Stroke-Object for the given type and with.
34.Creates a region surrounding a line segment by 'widening' the line segment.
35.Creates a triangle shape that points downwards.
36.Creates a triangle shape that points upwards.
37.Polygon with float coordinates.
38.Polyline 2D
39.Serialises a Shape object.
40.Tests two polygons for equality. If both are null this method returns true.
41.Union two rectangles
42.Calculate Intersection Clip
43.Draws a shape with the specified rotation about (x, y).
44.Checks, whether the given rectangle1 fully contains rectangle 2 (even if rectangle 2 has a height or width of zero!).
45.Reads a Point2D object that has been serialised by the writePoint2D(Point2D, ObjectOutputStream)} method.
46.Returns a point based on (x, y) but constrained to be within the bounds of a given rectangle.
47.RectListManager is a class to manage a list of rectangular regions.
48.Fill Rectangle2D.Double and Ellipse2D.DoubleFill Rectangle2D.Double and Ellipse2D.Double
49.This program demonstrates the various 2D shapesThis program demonstrates the various 2D shapes
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