panda3d通过长方体对角线两个坐标点：xyz的最大值和最小值判断一个点是否在这个长方体范围内画出这个点以及长方体完整代码

from panda3d.core import LPoint3, BitMask32
from direct.showbase.ShowBase import ShowBase
from direct.task import Task


class MyApp(ShowBase):
    
    def __init__(self):
        ShowBase.__init__(self)
        
        # 长方体对角线两个坐标点
        min_point = LPoint3(-2, -2, -2)
        max_point = LPoint3(2, 2, 2)
        
        # 判断点是否在长方体范围内
        point = LPoint3(0, 0, 0)
        if point.getX() >= min_point.getX() and point.getX() <= max_point.getX() and \
           point.getY() >= min_point.getY() and point.getY() <= max_point.getY() and \
           point.getZ() >= min_point.getZ() and point.getZ() <= max_point.getZ():
            print("Point is inside the box")
        else:
            print("Point is outside the box")
         
        # 创建长方体模型
        self.box = self.loader.loadModel("models/box.egg")
        self.box.setScale(4)  # 放大模型
        self.box.setPos((min_point + max_point) / 2)  # 将模型中心移动到长方体中心位置
        self.box.reparentTo(self.render)
        
        # 创建点模型
        self.point = self.loader.loadModel("models/smiley.egg")
        self.point.setScale(0.1)
        self.point.setPos(point)
        self.point.reparentTo(self.render)
        
        # 添加相机和光源
        self.disableMouse()
        self.camera.setPos(0, -20, 0)
        self.camera.lookAt(0, 0, 0)
        self.render.setShaderAuto()
        self.render.setLight(self.render.attachNewNode(self.directionalLight))
        self.render.setLight(self.render.attachNewNode(self.ambientLight))
        
        # 设置渲染顺序
        self.box.setBin("background", 0)
        self.box.setDepthTest(False)
        self.box.setDepthWrite(False)
        self.point.setBin("fixed", 1)
        
        # 添加任务
        self.taskMgr.add(self.spinCameraTask, "SpinCameraTask")
        
    def spinCameraTask(self, task):
        angleDegrees = task.time * 6.0
        angleRadians = angleDegrees * (3.14 / 180.0)
        self.camera.setPos(20 * math.sin(angleRadians), -20 * math.cos(angleRadians), 0)
        self.camera.setHpr(angleDegrees, 0, 0)
        return Task.cont
        
        
app = MyApp()
app.run()

注意：这里的模型文件models/box.egg和models/smiley.egg需要提前准备好放在项目目录下