用 VPython 制作金字塔
VPython
可以轻松创建可导航的 3D 显示和动画,即使对于那些编程经验有限的人来说也是如此。因为它是基于Python的,所以它也为有经验的程序员和研究人员提供了很多东西。 VPython
允许用户在 3D 空间中创建球体和圆锥体等对象,并将这些对象显示在窗口中。这使得创建简单的可视化变得容易,使程序员可以更多地关注他们程序的计算方面。 VPython
的简单性使其成为说明简单物理的工具,尤其是在教育环境中。
安装 :
pip install vpython
金字塔是三维空间中的几何对象,其底部为矩形,倾斜的侧面在顶部的一个点处相交。我们可以使用pyramid()
方法在VPython
中生成金字塔。
金字塔()
Syntax : pyramid(parameters)
Parameters :
- pos : It is the position of the center of the base of the pyramid. Assign a vector containing 3 values, example pos = vector(0, 0, 0)
- axis : It is the axis of alignment of the pyramid. Assign a vector containing 3 values, example axis = vector(1, 2, 1)
- up : It is the orientation of the pyramid. Assign a vector containing 3 values, example up = vector(0, 1, 0)
- color : It is the color of the pyramid. Assign a vector containing 3 values, example color = vector(1, 1, 1) will give the color white
- opacity : It is the opacity of the pyramid. Assign a floating value in which 1 is the most opaque and 0 the least opaque, example opacity = 0.5
- shininess : It is the shininess of the pyramid. Assign a floating value in which 1 is the most shiny and 0 the least shiny, example shininess = 0.6
- emissive : It is the emissivity of the pyramid. Assign a boolean value in which True is emissive and False is not emissive, example emissivity = False
- texture : It is the texture of the pyramid. Assign the required texture from the textures class, example texture = textures.stucco
- length : It is the length of the pyramid in the x axis. Assign a floating value, the default length is 1, example length = 10
- height : It is the height of the pyramid in the y axis. Assign a floating value, the default length is 1, example height = 8
- width : It is the width of the pyramid in the z axis. Assign a floating value, the default length is 1, example width = 4
- size : It is the size of the pyramid. Assign a vector containing 3 values representing the length, height and width respectively, example size = vector(1, 1, 1)
All the parameters are optional.
示例 1:没有参数的金字塔,所有参数都将具有默认值。
# import the module
from vpython import * pyramid()
输出 :
示例 2:使用参数颜色、不透明度、光泽度和发射率的金字塔。
# import the module
from vpython import * pyramid(color = vector(0.5, 0.5, 0.5),
opacity = 0.5,
shininess = 1,
emissive = False)
输出 :
示例 3:显示 2 个金字塔以可视化属性 pos 和 size。
# import the module
from vpython import *
# the first pyramid
pyramid(pos = vector(-2, 2, 0),
size = vector(5, 2, 2),
color = vector(0.5, 1, 0))
# the second pyramid
pyramid(pos = vector(1, -1, 5),
color = vector(0, 1, 0.5))
输出 :
示例 4:使用参数纹理、轴和向上的圆柱体。
# import the module
from vpython import * pyramid(texture = textures.wood,
axis = vector(-1, 4, 3),
up = vector(1, 2, 2))
输出 :
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