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HW-02 叶本领1811562117

The document discusses drawing 3D graphics in Python using OpenGL. It provides code to draw a cube and a triangle. For drawing a cube, it defines vertex and edge data and uses OpenGL functions like glBegin, glEnd, and glVertex3fv to draw lines connecting the vertices. For the triangle, it defines vertex data as a NumPy array and uses glDrawArrays to render the triangle primitive.

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MD KAMRUZZAMAN
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44 views5 pages

HW-02 叶本领1811562117

The document discusses drawing 3D graphics in Python using OpenGL. It provides code to draw a cube and a triangle. For drawing a cube, it defines vertex and edge data and uses OpenGL functions like glBegin, glEnd, and glVertex3fv to draw lines connecting the vertices. For the triangle, it defines vertex data as a NumPy array and uses glDrawArrays to render the triangle primitive.

Uploaded by

MD KAMRUZZAMAN
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Homework -02

Name: kamruzzaman md 叶本领

Id：1811562117

Question: draw some graphics with OpenGL in python


Write the codes and show the running results

Solution: draw some graphics with OpenGL in python


Code:
from OpenGL.GL import *

from OpenGL.GLU import *

import pygame

from pygame.locals import *

verti = (

(1, -1, -1),

(1, 1, -1),

(-1, 1, -1),

(-1, -1, -1),

(1, -1, 1),

(1, 1, 1),

(-1, -1, 1),

(-1, 1, 1)

edgez = (

(0,1),

(0,3),

(0,4),

(2,1),

(2,3),

(2,7),

(6,3),

(6,4),

(6,7),

(5,1),
(5,4),

(5,7)

def Cube():

glBegin(GL_LINES)

for edge in edgez:

for vertex in edge:

glVertex3fv(verti[vertex])

glEnd()

def main():

pygame.init()

display = (900, 700)

pygame.display.set_mode(display, DOUBLEBUF | OPENGL)

gluPerspective(35, (display[0] / display[1]), 0.1, 500.0)

glTranslatef(0.0, 0.0, -5)

while True:

for event in pygame.event.get():

if event.type == pygame.QUIT:

pygame.quit()

quit()

glRotatef(3, 1, 3, 1)

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)

Cube()

pygame.display.flip()

pygame.time.wait(15)

main()
Work-02:

Code:

import numpy as np

from OpenGL. GL import*

import glfw

glfw.init() #creating a window size having 900 as width and 700 as height

window = glfw.create_window(500, 500, "Pyopengl Triangle", None, None)

glfw.set_window_pos(window, 500, 300)

glfw.make_context_current(window)

vertices =[-0.5,-0.5 ,0.8,

0.5,-0.5,1.0,

0.6,0.5,0.9]

v=np.array (vertices, dtype=np.float32)

# this will draw a colorless triangle


glEnableClientState(GL_VERTEX_ARRAY)

glVertexPointer(3, GL_FLOAT, 0, v)

#Ii set a color for your back ground1

glClearColor(0, 55, 255, 0)

while not glfw.window_should_close(window):

glfw.poll_events()

glClear(GL_COLOR_BUFFER_BIT)

glDrawArrays(GL_TRIANGLES, 0, 5)

glfw.swap_buffers( window)

glfw.terminate()

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