梧桐树模拟系统设计1

[2501_93087963]

class PlatanusTree:
    def __init__(self):
        self trunk_length = 100  # 树干初始长度
        self branch_angle = 25   # 分枝角度
        self reduction_factor = 0 7  # 每层长度衰减系数
        self leaf_density = 0 3  # 叶片密度系数
 
    def generate_rules(self, depth):
        """生成L-system规则"""
        if depth == 0:
            return "F"
        prev_str = self generate_rules(depth-1)
        return prev_str replace("F", "F[+F]F[-F]F")
2  可视化实现
2 1 使用Turtle图形库
python
import turtle
import math
 
class TreeVisualizer:
    def __init__(self, tree_model):
        self model = tree_model
        self screen = turtle Screen()
        self screen bgcolor("skyblue")
        self pen = turtle Turtle()
        self pen speed(0)
        self pen color("brown")