这是我正在导入的图片:
look_1 = pygame.image.load('data\\png\\look1.png').convert_alpha()
我尝试减小它的大小的是这个:
pygame.transform.scale()
但这似乎不是正确的做法。
您可以使用pygame.transform.scale
或smoothscale
并传递表面的新宽度和高度,或者使用pygame.transform.rotozoom
并传递将与当前分辨率相乘的浮点数。
import sys
import pygame as pg
pg.init()
screen = pg.display.set_mode((640, 480))
IMAGE = pg.Surface((100, 60))
IMAGE.fill(pg.Color('sienna2'))
pg.draw.circle(IMAGE, pg.Color('royalblue2'), (50, 30), 20)
# New width and height will be (50, 30).
IMAGE_SMALL = pg.transform.scale(IMAGE, (50, 30))
# Rotate by 0 degrees, multiply size by 2.
IMAGE_BIG = pg.transform.rotozoom(IMAGE, 0, 2)
def main():
clock = pg.time.Clock()
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
screen.fill(pg.Color('gray15'))
screen.blit(IMAGE, (50, 50))
screen.blit(IMAGE_SMALL, (50, 155))
screen.blit(IMAGE_BIG, (50, 230))
pg.display.flip()
clock.tick(30)
if __name__ == '__main__':
main()
pg.quit()
sys.exit()
pygame.transform.smoothscale
或者 pygame.transform.scale
。其中,pygame.transform.scale
使用最接近的像素进行快速缩放,pygame.transform.smoothscale
则使用插值算法平滑地缩放表面到任意大小。pygame.transform.scale()
放大表面会导致锯齿状结果。缩小时会丢失信息(像素)。相比之下,pygame.transform.smoothscale
模糊了表面。pygame.transform.scale()
和 pygame.transform.smoothscale
被用于同样的方式。它们不会直接缩放输入的表面。它创建一个新的表面并对新的表面进行缩放贴图操作。函数的返回值为新的表面。它们的过程如下:
(width, height)
的新表面 (newSurface
)。Surface
进行缩放并复制到 newSurface
中。newSurface
。look_1 = pygame.image.load('data\\png\\look1.png').convert_alpha()
look_1 = pygame.transform.scale(look_1, (new_width, new_height))
或者
look_1 = pygame.image.load('data\\png\\look1.png').convert_alpha()
look_1 = pygame.transform.smoothscale(look_1, (new_width, new_height))
另请参阅变换比例和缩放表面
最小示例:
replit.com/@Rabbid76/PyGame-ScaleCenter
import pygame
class ScaleSprite(pygame.sprite.Sprite):
def __init__(self, center, image):
super().__init__()
self.original_image = image
self.image = image
self.rect = self.image.get_rect(center = center)
self.mode = 1
self.grow = 0
def update(self):
if self.grow > 100:
self.mode = -1
if self.grow < 1:
self.mode = 1
self.grow += 1 * self.mode
orig_x, orig_y = self.original_image.get_size()
size_x = orig_x + round(self.grow)
size_y = orig_y + round(self.grow)
self.image = pygame.transform.scale(self.original_image, (size_x, size_y))
self.rect = self.image.get_rect(center = self.rect.center)
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite = ScaleSprite(window.get_rect().center, pygame.image.load("Banana64.png"))
group = pygame.sprite.Group(sprite)
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
group.update()
window.fill(0)
group.draw(window)
pygame.display.flip()
pygame.quit()
exit()
首先导入图片。
然后我们可以使用pygame.transform.scale
函数。
这是一个快速缩放操作。
self.image = pygame.image.load('ship.bmp')
self.image = pygame.transform.scale(self.image,(35,35))
你可以做:
import pygame,sys
from pygame.locals import *
size = int(input("What is the size?"))
look_1 = pygame.image.load('data\\png\\look1.png')
win = pygame.display.set_mode((500,500),0,32)
while True:
for event in pygame.event.get():
if event.type==QUIT:
pygame.quit()
sys.exit()
win.blit(pygame.transform.scale(look_1, (size, size)), (x, y))
win.update()
pygame.transform.scale()
是正确的。你传递了什么参数? - Blake O'Hare