Panda3D 模型划分：获取区块最小值和最大值

以下是使用 Panda3D 导入模型、计算最小值和最大值、划分区块并保存到字典的示例代码：

from panda3d.core import *
from direct.showbase.ShowBase import ShowBase

class MyApp(ShowBase):
    def __init__(self):
        ShowBase.__init__(self)
        
        # 导入模型
        model_path = 'path_to_your_model'
        model = self.loader.loadModel(model_path)
        model.reparentTo(self.render)
        
        # 获取模型的最小值和最大值
        min_point, max_point = model.getTightBounds()
        
        # 计算模型最高点的高度
        highest_point = max_point.getZ()
        
        # 计算区块数量
        block_width = 10
        block_length = 10
        block_height = highest_point
        num_blocks = int((max_point.getX() - min_point.getX()) / block_width) * int((max_point.getY() - min_point.getY()) / block_length)
        
        # 创建一个字典来保存区块的最小值和最大值
        block_data = {}
        
        # 划分区块并获取每个区块的最小值和最大值
        for i in range(num_blocks):
            x = min_point.getX() + (i % int((max_point.getX() - min_point.getX()) / block_width)) * block_width
            y = min_point.getY() + (i // int((max_point.getX() - min_point.getX()) / block_width)) * block_length
            z = min_point.getZ()
            
            block_min = Point3(x, y, z)
            block_max = Point3(x + block_width, y + block_length, z + block_height)
            
            block_data[i+1] = (block_min, block_max)
        
        print('区块数量：', num_blocks)
        print('区块数据：', block_data)
        
app = MyApp()
app.run()

请将代码中的'path_to_your_model'替换为您要导入的模型的文件路径。运行代码后，将输出区块数量和每个区块的最小值和最大值的字典数据。