//--------------------------------------------------------------
ofPolyline testApp::freqArc( vector<float> &_vector, const ofPoint &_center, float _angleBegin, float _angleEnd, float _minRad, bool _bSmooth){
ofPolyline line;
float angle = ofWrapRadians(_angleBegin);
float step = (ofWrapRadians(_angleEnd) - angle)/((float)_vector.size());
float scale = 1.0f;
ofPoint start = ofPoint(_center.x + _minRad * cos(angle),
_center.y + _minRad * sin(angle));
ofPoint end = ofPoint(_center.x + _minRad * cos(_angleEnd),
_center.y + _minRad * sin(_angleEnd));
line.addVertex( start );
for (int i = 0; i < _vector.size(); i++){
float value = ofMap(_vector[i]*scale, 0.0, 60.0f, _minRad, _minRad*2);
ofPoint p = _center;
p.x += value * cos(angle);
p.y += value * sin(angle);
angle += step;
if (_bSmooth){
line.curveTo( p );
} else {
line.addVertex(p);
}
}
line.addVertex( end );
return line;
}
//--------------------------------------------------
float ofAngleDifferenceRadians(float currentAngle, float targetAngle) {
return ofWrapRadians(targetAngle - currentAngle);
}