CellArrayTest.java

// Copyright 2003 FreeHEP
package org.freehep.graphicsio.cgm.test;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.freehep.graphicsio.cgm.CGMGraphics2D;
import org.freehep.util.UserProperties;

/**
 * CellArrayTest illustrates drawing of an image, including just a graphics
 * transform, and then also an image tranform with rotation. The image includes
 * a transparent cell (represented by a cell with 0 alpha). Note that CGM
 * doesn't fully support alpha, but it supports a transparent cell value, which
 * is used by CGMGraphics2D only when alpha is exactly 0).
 * 
 * @author Ian Graham
 */
public class CellArrayTest {

    public static void main(String[] args) throws IOException {

        int[][] argbArray = {
                { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFF008000 },
                { 0xFFFFFF00, 0x00000000, 0xFFFF00FF, 0xFF008000 },
                { 0xFF00FFFF, 0xFF80FF80, 0xFFFFFF00, 0xFF008000 }, };

        BufferedImage image = new BufferedImage(4, 3,
                BufferedImage.TYPE_INT_ARGB);
        for (int y = 0; y < argbArray.length; y++) {
            for (int x = 0; x < argbArray[0].length; x++) {
                image.setRGB(x, y, argbArray[y][x]);
            }
        }

        UserProperties graphicsProperties = (UserProperties) CGMGraphics2D
                .getDefaultProperties();
        graphicsProperties.setProperty(CGMGraphics2D.BINARY, true);
        graphicsProperties.setProperty(CGMGraphics2D.BACKGROUND_COLOR,
                Color.LIGHT_GRAY);
        graphicsProperties.setProperty(CGMGraphics2D.BACKGROUND, true);

        OutputStream out = new FileOutputStream("CellArrayTest.cgm");
        CGMGraphics2D graphics = new CGMGraphics2D(out, new Dimension(60, 50));
        // OutputStream out = new FileOutputStream("CellArrayTest.gif");
        // GIFGraphics2D graphics = new GIFGraphics2D(out, new Dimension(60,
        // 50));
        graphics.setCreator(System.getProperty("user.name"));
        graphics.startExport();
        graphics.setTransform(AffineTransform.getScaleInstance(10, 10));
        // graphics.setClip(1.5, 1.5, 2, 2);
        graphics.transform(AffineTransform.getTranslateInstance(1, 1));
        graphics.drawImage(image, 0, 0, null);
        AffineTransform transform = AffineTransform.getTranslateInstance(2, 1);
        transform.concatenate(AffineTransform.getRotateInstance(Math
                .toRadians(30)));
        graphics.setClip(1.5, 1.5, 2, 2);
        graphics.drawImage(image, transform, null);
        graphics.endExport();
    }

}