draw Boundary - Java 2D Graphics

Java examples for 2D Graphics:Text

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Description

draw Boundary

Demo Code


//package com.java2s;
import java.awt.*;

import java.awt.geom.*;

public class Main {
    public static void drawBoundary(Graphics2D g2d, Rectangle bounds,
            Point2D.Double[] pts) {
        Color smokey = new Color(128, 128, 128, 128);
        drawBoundary(g2d, bounds, pts, smokey, true);
    }//  w  ww  .  j  a v  a 2  s. co  m

    public static void drawBoundary(Graphics2D g2d, Rectangle bounds,
            Point2D.Double[] pts, Color color, boolean drawSqPt) {
        g2d.setPaint(Color.BLACK);
        BasicStroke basicStroke = new BasicStroke(0.25f);
        Stroke origStroke = g2d.getStroke();
        g2d.setStroke(basicStroke);
        g2d.setRenderingHint(java.awt.RenderingHints.KEY_ANTIALIASING,
                java.awt.RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.draw(bounds);
        basicStroke = new BasicStroke(1.0f);
        g2d.setStroke(basicStroke);
        for (int i = 0; i < pts.length; i++) {
            if (drawSqPt)
                drawSquarePoint(g2d, pts[i], 1, color);
            else
                drawPoint(g2d, pts[i], 1, color);
        }
        g2d.setStroke(origStroke);
    }

    public static void drawSquarePoint(Graphics2D g2, Point2D.Double pt,
            int ptSize, Color color) {
        Color origColor = g2.getColor();
        g2.setColor(color);
        Rectangle2D.Double ptRect = new Rectangle2D.Double(pt.x - 4
                * ptSize, pt.y - 4 * ptSize, 8 * ptSize, 8 * ptSize);
        g2.fill(ptRect);
        g2.draw(ptRect);
        g2.setColor(origColor);
    }

    public static void drawPoint(Graphics2D g2, Point2D.Double pt,
            int ptSize, Color color) {
        AffineTransform affine = new AffineTransform();
        affine.setToIdentity();
        drawPoint(affine, g2, pt, ptSize, color);
    }

    public static void drawPoint(AffineTransform affine, Graphics2D g2,
            Point2D.Double point, int ptSize, Color color) {
        Point2D.Double pt = (Point2D.Double) affine.transform(point, null);
        Color origColor = g2.getColor();
        g2.setColor(color);
        g2.fill(new Ellipse2D.Double(pt.x - 4 * ptSize, pt.y - 4 * ptSize,
                8 * ptSize, 8 * ptSize));
        g2.setColor(origColor);
    }
}

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