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<p>我尝试在PyOpenGL中使用圆环体、圆柱体和长方体的组合来创建一个关键对象。我可以将这三个单独的对象分别放在窗口的中心,但是当我试图将所有这些对象合并到一个窗口中时,我无法做到这一点。你知道吗</p>
<p>这是密码。你知道吗</p>
<pre><code>import pygame
from pygame.locals import *
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
vertices = (
(0.75, -0.25, -0.5),
(0.75, 0.25, -0.5),
(-0.75, 0.25, -0.5),
(-0.75, -0.25, -0.5),
(0.75, -0.25, 0.5),
(0.75, 0.25, 0.5),
(-0.75, -0.25, 0.5),
(-0.75, 0.25, 0.5),
)
edges = (
(0,1),
(0,3),
(0,4),
(2,1),
(2,3),
(2,7),
(6,3),
(6,4),
(6,7),
(5,1),
(5,4),
(5,7),
)
surfaces = (
(0,1,2,3),
(3,2,7,6),
(6,7,5,4),
(4,5,1,0),
(1,5,7,2),
(4,0,3,6),
)
colors = (
(1,0,0),
(0,1,0),
(0,0,1),
(0,0,0),
(1,1,1),
(0,1,1),
)
def draw_cuboid():
glBegin(GL_QUADS)
for surface in surfaces:
x = 0
for vertex in surface:
x+=1
glColor3fv(colors[x])
glVertex3fv(vertices[vertex])
glEnd()
glBegin(GL_LINES)
for egde in edges:
for vertex in egde:
glVertex3fv(vertices[vertex])
glEnd()
def draw_cylinder():
glRotatef(1, 1, 1.25, 12.5)
glColor3f(1.0, 1.0, 0.0)
quadratic = gluNewQuadric()
gluQuadricNormals(quadratic, GLU_SMOOTH)
gluQuadricTexture(quadratic, GL_TRUE)
gluCylinder(quadratic, 0.15, 0.15, 2.5, 32, 32)
def draw_torus():
glColor3f(0.0, 1.0, 0.0)
glutWireTorus(0.2, 0.8, 50, 50)
def main():
pygame.init()
glutInit()
display = (800,600)
pygame.display.set_mode(display, DOUBLEBUF|OPENGL)
gluPerspective(75, (display[0]/display[1]), 0.1, 50.0)
glTranslatef(0.0, 0.0, -5)
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
glTranslatef(-0.5, 0, 0)
if event.key == pygame.K_RIGHT:
glTranslatef(0.5, 0, 0)
if event.key == pygame.K_UP:
glTranslatef(0, 0.5, 0)
if event.key == pygame.K_DOWN:
glTranslatef(0, -0.5, 0)
if event.key == pygame.K_SPACE:
glRotatef(5, 0, 1, 0)
if event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 4:
glTranslatef(0, 0, 1.0)
if event.button == 5:
glTranslatef(0, 0, -1.0)
glRotatef(1, 3, 1, 1)
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)
draw_cuboid()
draw_torus()
draw_cylinder()
pygame.display.flip()
pygame.time.wait(10)
main()
</code></pre>
<p>我得到的结果如下。
<a href="https://drive.google.com/file/d/1VJ0013CnbvdwqpafNkxYyRsiTE0593JY/view?usp=sharing" rel="nofollow noreferrer">output</a></p>
<p>如您所见,这三个对象都是从窗口中心生成的。你知道吗</p>
<ol>
<li>我如何改变它们的位置来得到一个像键一样的物体,即圆柱体(在y轴上对齐)在中心,圆环在其顶部,长方体在另一端的顶端?你知道吗</li>
<li>如何使该键与y轴对齐(默认情况下保持不变而不旋转),并且通过按空格键,可以启动/停止整个对象沿y轴的旋转?你知道吗</li>
</ol>