3D Forest-tree Modeling Approach Based on Loading Segment Models

For the difficulty of tree polymorphism 3D modeling in the stand, the paper explored a 3D forest-tree-modeling approach based on loading trunk model and branch models. The approach is combined with the characteristics of tree branch structure that calculate the branch matching points of the intersection between the branch model and the crown curve to construct the tree branch structure. In addition, branch models are adjusted to eliminate the overlapping of branch models when the adjacent trees had overlapping crowns. The 3D model of forest-tree was constructed in accordance with the growth law and morphological characteristics of forest-tree. The results showed that this approach can use a small amount of measurement data to simulate forest-tree crown of sample plot or stand.