How to make straight the edge of the line drawn with Graphics in Java?

I made a program that draws lines on the screen, but the line is very deformed (image 2) in certain links. I wanted to know if it is possible to leave straight (Image 1) the edge of the line in whatever its slope.

I'm using Graphics2D.

image

 3
javaawt
Author: Victor Stafusa, 2018-03-29
Source

1 answers

Use a Class RenderingHints:

private static final RenderingHints HINTS = new RenderingHints(null);
static {
    HINTS.put(KEY_ALPHA_INTERPOLATION, VALUE_ALPHA_INTERPOLATION_QUALITY);
    HINTS.put(KEY_ANTIALIASING, VALUE_ANTIALIAS_ON); 
    HINTS.put(KEY_COLOR_RENDERING, VALUE_COLOR_RENDER_QUALITY); 
    HINTS.put(KEY_INTERPOLATION, VALUE_INTERPOLATION_BICUBIC); 
    HINTS.put(KEY_STROKE_CONTROL, VALUE_STROKE_NORMALIZE);
}

@Override
public void paintComponent(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHints(HINTS);

    // Prossiga com seu desenho aqui.
}

All these keys and values are added with import static java.awt.RenderingHints.*. The most important is KEY_ANTIALIASING and VALUE_ANTIALIAS_ON which activates anti-aliasing.

For more details, see the CBT I did in this area in 2007.

 2
Author: Victor Stafusa, 2018-03-29 16:54:25