How I can set pixel in the Shape with the specific RGB?

Question

For example, I have a polygon and I need to fill it with the specific RGB. How can I do it? I tried to convert shape to image, but then I can't set a pixel with setRGB method from BufferedImage(pixel color wasn't changing!):

...
    Rectangle2D r = pgnProjection.getBounds();
    BufferedImage rectBuffIm = new BufferedImage(r.getBounds().width, r.getBounds().height, 
                                        BufferedImage.TYPE_BYTE_BINARY);
    for(int i = rectBuffIm.getWidth()/2, j = rectBuffIm.getHeight()/2; rectBuffIm.getWidth()>i && rectBuffIm.getHeight()>j; j++, i++)
        rectBuffIm.setRGB(i, j, rgb);

    Graphics2D gr2D = rectBuffIm.createGraphics();
    gr2D.translate(-pgnProjection.getBounds().x, -pgnProjection.getBounds().y);
    gr2D.draw(pgnProjection);
    gr2D.dispose();
...

Also, image background was black, and set pixels were always white.

score 1 · Answer 1 · edited May 23 '17 at 12:01

1

Call Graphics.setClip(Shape) followed by the drawing operations. See here for an example.

edited May 23 '17 at 12:01

Community

1
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answered Jun 22 '11 at 08:41

Andrew Thompson

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score 0 · Answer 2 · answered Jun 22 '11 at 08:38

0

Graphics.fillPolygon()

answered Jun 22 '11 at 08:38

Suraj Chandran

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I must fill pixels of different colors not one color. – ilya8891 Jun 22 '11 at 08:47

How I can set pixel in the Shape with the specific RGB?

2 Answers2