Tutorial/Flags/4 Stars

We use 10 points to define the five pointed star. We could use the same method as previously: We can construct a polygon with two arrays of integers. The first array holds the x values, the second array hold the y values. We also tell the constructor how big the array is (10 in this case). We can give an array of integers using the phrase

new int [] {1,2,3}

g.setColor(Color.red);
g.translate(180,120);
g.fillPolygon(star);
g.translate(-180,-120);

fillPolygon we translate then fillPolygon again.

g.translate(38,38);
g.fillPolygon(star);

To make the lines smoother we can insert the following before doing any drawing or filling. This makes rendering slower, but better.

g.setRenderingHint(
RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);

You can copy the large star from the Vietnam example. To draw the smaller stars we can translate to the right place, then scale to the right size. The scale method makes following fill and translate actions smaller of bigger depending on the value given.

For example the following draws the star half size.

g.scale(0.5, 0.5);
g.fillPolygon(star);

Beware that the scale operation effects accumulate and any translate following a scale will be effected.