libgdx- pixmap: can I somehow change the width of the line?

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I want to draw a line and then generate a texture (with libgdx). I found out that creating a texture from circles, rectangles and lines is simple with pixmap. But I didn't find out how to set the linewidth of the drawn shape. Is there any possibility to set the linewidth for pixmap?

Here is the code I got so far: (I tried to draw two filled circles and to connect them with a line)

Pixmap pixmap = new Pixmap( 16, 16, Format.RGBA8888 );
pixmap.setColor(Color.BLUE);
pixmap.fillCircle(x1, y1, 10);
pixmap.fillCircle(x2, y2, 10);
pixmap.drawLine(x2, y2, x1, y1); // this line is very thin
Texture pixmaptex = new Texture( pixmap );
pixmap.dispose();
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P.T. On BEST ANSWER

Linewidth isn't reliably supported by OpenGL implementations. To draw "fat" lines, draw a rectangle.

See Libgdx gl10.glLineWidth()