Draws an arc with the specified pen width. - Java 2D Graphics

Java examples for 2D Graphics:Arc

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Description

Draws an arc with the specified pen width.

Demo Code


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

public class Main {
    /** Draws an arc with the specified pen width. Note
     *  that the rectangle specified falls in the
     *  <B>middle</B> of the thick line (half inside it,
     *  half outside)./*from w  w  w.  j  ava 2 s.  c  o  m*/
     *
     * @param g The Graphics object.
     * @param left The left side of the bounding rectangle
     * @param top The top of the bounding rectangle
     * @param width The width of the bounding rectangle
     * @param height The height of the bounding rectangle
     * @param startAngle The beginning angle
     *                   <B>in degrees.</B> 0 is 3
     *                   o'clock, increasing
     *                   counterclockwise.
     * @param deltaAngle The sweep angle in degrees
     *                   (going counterclockwise).
     * @param lineWidth The pen width (thickness of
     *                  line drawn).
     */

    public static void drawArc(Graphics g, int left, int top, int width,
            int height, int startAngle, int deltaAngle, int lineWidth) {
        left = left - lineWidth / 2;
        top = top - lineWidth / 2;
        width = width + lineWidth;
        height = height + lineWidth;
        for (int i = 0; i < lineWidth; i++) {
            g.drawArc(left, top, width, height, startAngle, deltaAngle);
            if ((i + 1) < lineWidth) {
                g.drawArc(left, top, width - 1, height - 1, startAngle,
                        deltaAngle);
                g.drawArc(left + 1, top, width - 1, height - 1, startAngle,
                        deltaAngle);
                g.drawArc(left, top + 1, width - 1, height - 1, startAngle,
                        deltaAngle);
                g.drawArc(left + 1, top + 1, width - 1, height - 1,
                        startAngle, deltaAngle);
                left = left + 1;
                top = top + 1;
                width = width - 2;
                height = height - 2;
            }
        }
    }

    /** Draws an arc with the specified pen width
     *  and color.
     *
     * @param g The Graphics object.
     * @param left The left side of the bounding rectangle
     * @param top The top of the bounding rectangle
     * @param width The width of the bounding rectangle
     * @param height The height of the bounding rectangle
     * @param startAngle The beginning angle
     *                   <B>in degrees.</B> 0 is 3
     *                   o'clock, increasing
     *                   counterclockwise.
     * @param deltaAngle The sweep angle in degrees
     *                   (going counterclockwise).
     * @param lineWidth The pen width (thickness of
     *                  line drawn).
     * @param c The Color in which to draw.
     */

    public static void drawArc(Graphics g, int left, int top, int width,
            int height, int startAngle, int deltaAngle, int lineWidth,
            Color c) {
        Color origColor = g.getColor();
        g.setColor(c);
        drawArc(g, left, top, width, height, startAngle, deltaAngle,
                lineWidth);
        g.setColor(origColor);
    }

    /** Adds a Color argument to the drawArc method of
     *  java.awt.Graphics.
     *
     * @param g The Graphics object.
     * @param left The left side of the bounding rectangle
     * @param top The top of the bounding rectangle
     * @param width The width of the bounding rectangle
     * @param height The height of the bounding rectangle
     * @param deltaAngle The sweep angle in degrees
     *                   (going counterclockwise).
     * @param lineWidth The pen width (thickness of
     *                  line drawn).
     * @param c The color in which to draw the arc.
     */

    public static void drawArc(Graphics g, int left, int top, int width,
            int height, int startAngle, int deltaAngle, Color c) {
        Color origColor = g.getColor();
        g.setColor(c);
        g.drawArc(left, top, width, height, startAngle, deltaAngle);
        g.setColor(origColor);
    }
}

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