draw Pie opengl - Java javax.media.opengl

Java examples for javax.media.opengl:GL

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Description

draw Pie opengl

Demo Code


import javax.media.opengl.GL2;

public class Main{
    public static void drawPie(GL2 gl2, double x, double y, double z,
            double r, double start, double end, int seg) {
        double ang = (end - start) / (double) seg;
        gl2.glBegin(GL2.GL_TRIANGLE_FAN);
        gl2.glVertex3d(x, y, z);//from ww w .  j  av  a2 s . c  o m

        for (int i = 0; i <= seg; i++) {
            double rx = r * Math.cos((start + ang * i) * 3.1416 / 180.0);
            double ry = r * Math.sin((start + ang * i) * 3.1416 / 180.0);
            gl2.glVertex3d(x + rx, y + ry, z);
        }
        gl2.glEnd();
    }
}

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