Why I can't visual the String with Graphics drawString method

Question

it is can by see pdf.png in the new Picture, but can't see the String "Hello" in the new Picture

public void generateImage() throws Exception{
        int width = 220;
        int height = 50;
        BufferedImage image = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();
        g.setColor(new Color(255,255,255));
        g.fillRect(0, 0, width, height);
        Font font = new Font("宋体",Font.BOLD,10);
        g.setFont(font);
        BufferedImage image2 = ImageIO.read(new File("data/icon/pdf.png"));
        g.drawImage(image2, 0, 0, 44, 42, null);
        g.drawString("Hello", 50, 5);
        g.dispose();
        File f = new File("data/icon/"+fileName+".png");
        FileOutputStream fos = new FileOutputStream(f);
        ImageIO.write(image,"PNG",fos);
        fos.close();
}

For better help sooner, post an [SSCCE](http://sscce.org/). – Andrew Thompson Mar 09 '12 at 07:37 — Andrew Thompson, Mar 09 '12 at 07:37

score 2 · Answer 1 · answered Mar 09 '12 at 07:02

2

g.drawString("Hello", 50, 5);

On this line manipulate the coordinate values, i.e. 50 and 5, and test whether the text "Hello" appears.

answered Mar 09 '12 at 07:02

Juvanis

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`getFontMetrics().getAscent()` would be a lower bound on _y_ values to try. – trashgod Mar 09 '12 at 07:14

score 2 · Answer 2 · answered Mar 09 '12 at 07:09

2

It looks like you are setting the color to white and never setting any other color. The result is extremely low contrast.

answered Mar 09 '12 at 07:09

trashgod

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29
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g.drawImage(image2, 0, 0, 80, 80, null); g.setColor(Color.red); g.drawString("Hello", 50, 5); – xxddwdj Mar 09 '12 at 07:27
Did that help? Try `g.drawString("Hello", 50, 12)`. See also this [example](http://stackoverflow.com/a/2658663/230513). – trashgod Mar 09 '12 at 11:41

Why I can't visual the String with Graphics drawString method

2 Answers2