TreesManager treeManager = (TreesManager) project.ownerModule
.findElementManager(TreeVector.class);
ListableVector treeVectors = treeManager.getTreeBlockVector();
for (int i = 0; i < treeVectors.size(); i++) {
// One treeVector represents one tree block
TreeVector treeVector = (TreeVector) treeVectors.elementAt(i);
// System.out.println(" treeVector: " + i + " - " + treeVector.getName());
TreeBlock treeblock = new TreeBlock();
treeblock.setTitle(treeVector.getName());