C4D Python 创建一个小车模型的代码

以下是使用C4D Python创建一个简单小车模型的代码示例：

import c4d

# 创建一个新的场景
doc = c4d.documents.BaseDocument()

# 创建车轮模型
wheel = c4d.BaseObject(c4d.Ocube)
wheel[c4d.PRIM_CUBE_LEN, c4d.VECTOR_X] = 50.0
wheel[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Y] = 20.0
wheel[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Z] = 50.0
doc.InsertObject(wheel)

# 复制车轮模型并创建轮子轴
wheel_axis = c4d.BaseObject(c4d.Onull)
wheel_axis.InsertUnder(wheel)
wheel_copy = wheel.GetClone()
wheel_copy.InsertUnder(wheel_axis)
wheel_copy[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_X] = 50.0
wheel_copy2 = wheel_copy.GetClone()
wheel_copy2[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_X] = -50.0

# 创建车身模型
body = c4d.BaseObject(c4d.Ocube)
body[c4d.PRIM_CUBE_LEN, c4d.VECTOR_X] = 150.0
body[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Y] = 50.0
body[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Z] = 100.0
doc.InsertObject(body)

# 将车轮轴模型放置在车身的两侧
wheel_axis[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_Y] = -25.0
wheel_axis2 = wheel_axis.GetClone()
wheel_axis2[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_X] = -75.0
wheel_axis2.InsertUnder(body)

# 创建转向模型
steering = c4d.BaseObject(c4d.Ocone)
steering[c4d.PRIM_CONE_RADIUS] = 20.0
steering[c4d.PRIM_CONE_HEIGHT] = 50.0
steering[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_Z] = 100.0
doc.InsertObject(steering)

# 将车身和转向模型组合成一个对象
car = c4d.BaseObject(c4d.Onull)
car.InsertUnder(doc.GetFirstObject())
body.InsertUnder(car)
steering.InsertUnder(car)

# 创建车架模型
frame = c4d.BaseObject(c4d.Ocube)
frame[c4d.PRIM_CUBE_LEN, c4d.VECTOR_X] = 150.0
frame[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Y] = 10.0
frame[c4d.PRIM_CUBE_LEN, c4d.VECTOR_Z] = 60.0
frame[c4d.ID_BASEOBJECT_REL_POSITION, c4d.VECTOR_Y] = -20.0
doc.InsertObject(frame)
frame.InsertUnder(body)

# 将所有模型组合成一个对象
car_model = c4d.BaseObject(c4d.Onull)
car_model.InsertUnder(doc.GetFirstObject())
wheel_axis.InsertUnder(car_model)
wheel_axis2.InsertUnder(car_model)
car.InsertUnder(car_model)
frame.InsertUnder(car_model)

# 将对象添加到场景中
doc.SetActiveObject(car_model)
c4d.EventAdd()

注意，这只是一个简单的示例，实际上创建一个完整的小车模型可能需要更复杂的代码。同时，需要具备一定的C4D建模和Python编程基础才能理解和修改这个代码。