looping 1d noise (tiling)

gistfile1.txt

ofPolyline temp;
    float ff = ofGetElapsedTimef();
    for (int i = 0; i < 100; i++){
        float angle = ofMap(i, 0, 100, 0, TWO_PI);
        ofPoint pt= ofPoint(400,400);
        float radius = 200 + ofSignedNoise(ff*0.1, cos(angle)*0.3, sin(angle)*0.3) * 100;
        pt += radius * ofPoint(cos(angle), sin(angle));
        temp.addVertex(pt);
    }
    temp.setClosed(true);
    temp.draw();