RE: [Geotools-gt2-users] extract an image (jpeg) from a map

[Ian T. <I.J...@le...>]

I use some thing like:
                BufferedImage image =3D new BufferedImage(width, height,
                    BufferedImage.TYPE_INT_ARGB);
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                LOGGER.fine("setting up renderer");
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                java.awt.Graphics g =3D image.getGraphics();
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                if (!transparent) {
                    g.setColor(bgcolor);
                    g.fillRect(0, 0, width, height);
                }else{
                    //                Composite orig =3D
((Graphics2D)g).getComposite();
                    int type =3D AlphaComposite.SRC_OVER;
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((Graphics2D)g).setComposite(AlphaComposite.getInstance(type, 0));
                }
                    renderer =3D new LiteRenderer(map);
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                    LOGGER.fine("calling renderer");
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                    java.util.Date start =3D new java.util.Date();
//                    map.render(renderer, env);
                    AffineTransform at =3D
renderer.worldToScreenTransform(env, new java.awt.Rectangle(width,
height));
                    renderer.paint((Graphics2D)g,  new
java.awt.Rectangle(width, height), at);
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                    java.util.Date end =3D new java.util.Date();
                    LOGGER.fine("returning image after render time of "
+
                    (end.getTime() - start.getTime()));
                    //renderer =3D null;
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                map =3D null;
                return image;

-----Original Message-----
From: geo...@li...
[mailto:geo...@li...] On Behalf Of
Pedro Alves
Sent: 22 November 2004 23:58
To: geo...@li...
Subject: [Geotools-gt2-users] extract an image (jpeg) from a map


Is there a simple way to extract an image from a MapContext object?
I have tried to use ImageIO, but I can't resolve the problem with it!!!
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thanks for the help
Pedro Alves =20