我当前的目标是使一个较小的圆围绕一个较大圆的中心旋转,并使矩形遵循较小圆的路径。
我创建了一个TargetCircle
类,因为完成此可视化时总共将有18个圆圈。
我的问题是,在更改每个圆的theta
值并尝试显示更改后,什么都没有发生。
当前,显示的只是顶部的9个圆圈以及水平线和垂直线,但是,所有内容均保持不变。任何帮助将非常感激。谢谢。
import pygame as pg
import pygame.gfxdraw
import math
pg.init()
windowWidth = 800
windowHeight = 800
surface = pg.display.set_mode((windowWidth, windowHeight))
pg.display.set_caption("Circle")
clock = pg.time.Clock()
black = (0, 0, 0)
white = (255, 255, 255)
gray = (50, 50, 50)
red = (255, 0, 0)
class TargetCircle(object):
def __init__(self, posX, posY):
self.circlePositionX = posX
self.circlePositionY = posY
self.radius = 38
self.theta = 0
self.x = int((self.circlePositionX + (self.radius * math.cos(self.theta))))
self.y = int((self.circlePositionY + (self.radius * math.sin(self.theta))))
def draw(self, win):
pg.draw.rect(win, gray, (0, self.y, 800, 1))
pg.draw.rect(win, gray, (self.x, 0, 1, 800))
pygame.gfxdraw.aacircle(win, self.circlePositionX, self.circlePositionY, self.radius, white)
pygame.gfxdraw.filled_circle(win, self.x, self.y, 2, white)
circleList = []
x = 120
for i in range(1, 10):
circle = TargetCircle(x, 40)
circle.draw(surface)
circleList.append(circle)
x += 80
pg.display.update()
loop = 0
run = True
while run:
clock.tick(160)
for event in pg.event.get():
if event.type == pg.QUIT:
run = False
if loop == len(circleList):
loop = 0
surface.fill(0)
for i in range(len(circleList)):
circleList[i].theta += .10
circleList[i].draw(surface)
pg.display.flip()
loop += 1
pg.quit()
答案 0 :(得分:2)
问题是您没有更新<RouterLink to="/">
<img
alt="Logo"
src="/images/logos/logo--white.svg"
/>
<Typography variant="h5" component="h2" style={{display: 'inline'}}>
Hello World
</Typography>
</RouterLink>
的x和y值。您设置了
TargetCircle
一次进入 self.x = int((self.circlePositionX + (self.radius * math.cos(self.theta))))
self.y = int((self.circlePositionY + (self.radius * math.sin(self.theta))))
(在开始时被调用一次),然后再也不会设置它。为了解决这个问题,请将这两行移至__init__
(每帧都称为):
TargetCircle.draw