**VPython** **(Visual Python)** is a 3D graphics library that allows us to create and visualize three-dimensional objects on the screen. It is primarily used to visualize the impact of physics equations on the objects' motion.

Note:Read more about VPython.

**VPython shapes **are 2D objects extruded into the 3D space. 2D shapes can be defined by a vector

Following are some shapes in VPython:

The syntax to make a triangle object is as follows:

shapes.triangle(pos, langth, thickness)

Syntax for VPython triangle

where parameters are:

`pos`

: a two-dimensional position vector that defines the location of the shape. For example,`pos=[-2,4]`

.`length`

: a positive value that defines the overall size of the triangle.`thickness`

: a positive value that establishes a cavity inside the triangle.

For example:

An ngon object creates a shape with provided

shapes.ngon(pos, np, length, thickness)

Syntax for VPython ngon

where parameters are:

`pos`

: a two-dimensional position vector that defines the location of the shape. For example,`pos=[-2,4]`

.`np`

: a positive integer that defines the number of sides.`length`

: a positive value that defines the overall size of the ngon.`thickness`

: a positive value that establishes a cavity inside the ngon.

For example:

Note:An ngon with`np=3`

is a triangle,`np=4`

is a square,`np=5`

is a pentagon and, so on.

The syntax for creating a trapezoid is as follows:

shapes.trapezoid(pos, width, height, top)

Syntax for VPython trapezoid

where parameters are:

`pos`

: a two-dimensional position vector that defines the location of the shape. For example,`pos=[-2,4]`

.`width`

: a positive value that defines the width of the trapezoid's lower end.`height`

: a positive value that sets the overall height of the trapezoid.`top`

: a positive value that defines the width of the trapezoid's upper end.

A trapezoid with `pos=[0,0]`

, `width=5`

, `height=1`

, `top=3`

A trapezoid with `pos=[0,0]`

, `width=5`

, `height=1`

, `top=7`

Note:If`width=top`

, then trapezoid will become a cuboid.

The syntax for creating a trapezoid is as follows:

shapes.star(n, radius, iradius)

Syntax for VPython star

where parameters are:

`n`

: a positive integer that defines the star's number of corners.`radius`

: a positive value that defines the outer radius of the star.`iradius`

: a positive value that defines the inner radius of the star.

A star with `n=7`

, `radius=8`

, `iradius=9`

A star with `n=7`

, `radius=8`

, `iradius=1`

To execute the provided example code, follow the steps below:

Once you click the "Run" button, follow the encircled link

The example code for the above shapes is as follows:

from vpython import * t = shapes.triangle(pos=[3,3], length=3) triangle_1 = extrusion(path=[vector(0,0,0), vector (0,0,0.01)], shape=t, color=color.red) n = shapes.ngon(pos=[-3,-3], np=7, length=2) ngon_1 = extrusion(path=[vector(0,0,0), vector (0,0,0.01)], shape=n, color=color.yellow) z = shapes.trapezoid(pos=[3,-3], width=3, height=1, top=1) trapezoid_1 = extrusion(path=[vector(0,0,0), vector (0,0,0.01)], shape=z, color=color.cyan) s = shapes.star(pos=[-3,3], n=7, radius=3) star_1 = extrusion(path=[vector(0,0,0), vector (0,0,0.01)], shape=s, color=color.blue)

Note:Read more about

Copyright ©2024 Educative, Inc. All rights reserved

TRENDING TOPICS