我有以下程序：它的作用是读取 xyz 坐标文件并将它们存储在列表中：
J
-2000 379 -1817 # 21
J
-1112 379 -1791 # 16
-1112 379 -1817 # 22
J
-589 379 -1896 # 7
-79 379 -1896 # 23
-79 405 -1870 # 25
-589 405 -1870 # 8
J
然后我获取这些数据并将其缩放到我的 800x600 屏幕显示，并添加一些变换来缩放和移动图像。
import pygame
import sys, math
from itertools import groupby
from array import *
import re
# Define some colors
black = ( 0, 0, 0)
white = ( 255, 255, 255)
green = ( 0, 255, 0)
red = ( 255, 0, 0)
blue = ( 0, 0, 255)
yellow = ( 255, 255, 0)
violet = ( 255, 0, 255)
teal = ( 0, 255, 255)
orange = ( 255, 102, 0)#x
tan = ( 204, 153, 51)#X
pink = ( 255, 186, 210)#y
grey = ( 204, 207, 188)#Y
olive = ( 134, 148, 42)#z
gold = ( 218, 165, 32)#Z
#define a default color
color = white
#setup angles for rotation
angle = 1
rad = angle * math.pi / 180
cosa = math.cos(rad)
sina = math.sin(rad)
#Scale Factor
xrat = (800/4000)
yrat = -(600/4000)
zrat = 1
# Speed in pixels per frame
x_speed = 0
y_speed = 0
#scaling of x and y
x_scale = 1
y_scale = 1
# Function to draw our stick figure
def draw_figure(screen,unique_Xs,unique_Ys):
pygame.draw.lines(screen, color, False, draw_xy, 1)
# Setup
pygame.init()
# Set the width and height of the screen [width,height]
size=[800,600]
screen = pygame.display.set_mode(size)
pygame.display.set_caption("Computer Graphics Machine Problem 2")
#Loop until the user clicks the close button.
done = False
# Used to manage how fast the111 screen updates
clock=pygame.time.Clock()
# Hide the mouse cursor
pygame.mouse.set_visible(0)
# Speed in pixels per frame
x_speed = 0
y_speed = 0
z_speed = 0
#file reader
with open('C:\\Python33\\PIXB.DAT', 'r') as f:
#list1 = [line.strip().split('(')[0].split() for line in f]
list1 = [re.split(r'[(#)]+', line.strip())[0].split() for line in f]
points = [[list(map(float, var)) for var in g] for k, g in groupby(list1, key=lambda x: len(x)==1) if k != 1]
# -------- Main Program Loop -----------
while done == False:
# ALL EVENT PROCESSING SHOULD GO BELOW THIS COMMENT
for event in pygame.event.get(): # User did something
if event.type == pygame.QUIT: # If user clicked close
done = True # Flag that we are done so we exit this loop
# User pressed down on a key
elif event.type == pygame.KEYDOWN | event.type == pygame.KEYUP:
# Figure out if it was an arrow key. If so
# adjust speed.
if event.key == pygame.K_LEFT:
x_speed -= 30
color = green
elif event.key == pygame.K_RIGHT:
x_speed += 30
color = blue
elif event.key == pygame.K_UP:
y_speed -= 30
color = red
elif event.key == pygame.K_DOWN:
y_speed += 30
color = yellow
elif event.key == pygame.K_MINUS:
y_scale -= (1/10)
x_scale -= (1/10)
color = teal
elif event.key == pygame.K_EQUALS:
y_scale += (1/10)
x_scale += (1/10)
color = violet
if event.key == pygame.K_x:
color = orange
elif event.key == pygame.K_a:
color = tan
elif event.key == pygame.K_y:
color = pink
elif event.key == pygame.K_b:
color = grey
elif event.key == pygame.K_z:
color = olive
elif event.key == pygame.K_c:
color = gold
for point in points:
drawPoints_xyz = [[l[0], l[1], l[2]] for l in point]
drawPoints_xy = [[l[0], l[1]] for l in point]
#split draw points into two seperate list called Xs, Ys
Xs, Ys, Zs = zip(*drawPoints_xyz)
Xs, Ys = zip(*drawPoints_xy)
#rotation matrix for rotating Z
rot_Z = Ys * cosa + Xs * -sina
rot_z = Ys * sina + Xs * cosa
#apply the scale factor to the x points to fit the screen
unique_Xs = []
[unique_Xs.append(((2000+((val)*x_scale))*xrat)) for val in Xs]
#apply the scale factor to the y points to fit the screen
unique_Ys = []
[unique_Ys.append((-(2000+-(val*y_scale))*yrat)) for val in Ys]
unique_Zs = []
[unique_Zs.append(val) for val in Zs]
#array to setup movements
movedX = []
movedY = []
movedZ = []
#move by the points in x by x_speed
for x in unique_Xs:
movedX+=[(x+x_speed)]
#move by the points in y by y_speed
for y in unique_Ys:
movedY+=[(y+y_speed)]
#move by the points in z by z_speed
for z in unique_Zs:
movedZ+=[(z+z_speed)]
draw_figure(screen,movedX,movedY)
# Go ahead and update the screen with what we've drawn.
pygame.display.flip()
screen.fill(black)
clock.tick(10)
# above this, or they will be erased with this command.
pygame.quit()
我的问题是我也试图在这里进行旋转，所以我可以沿所有轴旋转，但是当我尝试将我的 x 坐标乘以我的旋转矩阵时，我得到了错误：
TypeError: can't multiply sequence by non-int of type 'float'
在这条线上
rot_Z = Ys * cosa + Xs * -sina
我认为这是因为我将一个元组乘以一个浮点数，但如果是这种情况，我不知道如何将我的列表 Xs 和 Ys 从元组转换为浮点数，这样我就可以乘以我的旋转，从而旋转我的图纸。