//in your header file
ofxSpaceColonization tree;

// in your App.cpp file
void ofApp::setup(){
    tree.build();
}

void ofApp::update(){
    tree.grow();
}

void ofApp::draw(){
    tree.draw();
}

static const ofxSpaceColonizationOptions defaultSpaceColOptions = {
    150,                             // maxDist, leaves are attractive if closer than this distance
    10,                              // minDist, leaves are attractive if farther than this distance
    150,                             // trunkLength, the length of the trunk
    glm::vec4(0.0f,0.0f,0.0f, 1.0f), // rootPosition, the position of the root
    glm::vec3(0.0f, 1.0f, 0.0f),     // rootDirection, the direction on which the tree will starts to grow
    7,                               // branchLength, the length of each branch
    false,                           // doneDrawing, a value that indicates when the grow process is done
    false,                           // cap, if the cylinders that compose the branches have caps or not
    2.0,                             // radius, the radius of the branch
    16,                              // resolution, the resolution of the cylinders that compose the geometry
    1,                               // textureRepeat, how many times a texture has to be repeated on a branch
    0.9997                           // radiusScale, how much the radius will increase or decrease at each interaction
};

void ofApp::setup(){
    auto myOpt = ofxSpaceColonizationOptions({
       // ...
    });
    tree.setup(myOpt);
    tree.build();
}

void ofApp::setup(){
    vector<glm::vec3> points;
    // ... fullfill the vector
    tree.setLeavesPositions(points);
    tree.build();
}

void ofApp::update(){
  float t = ofGetElapsedTimef();
  float n = ofSignedNoise(t * windFreq) * windAmpl;
  auto wind = glm::vec3(n,0.0,0.0); // a weird wind that only breezes on the x axis
  tree.grow(wind);
}