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How to plot a single point in matplotlib（2个答案）
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代码在下面。我在绘制压力传感器感受到的压力时遇到了问题。如果我将图表的格式更改为：plt.plot(t, LBS_DATA_SENSOR1, 'c.')它可以很好地用点绘制数据。然而，当我把它改为‘c-‘来制作一条线段的线时，它不会画出任何东西。此时将显示绘图并且轴移动（x和y），就像在不可见墨水中绘图一样。我知道数据正在被接收，因为它用点绘制得很好。我就是不能把它变成台词！

#TE FX29 load cell sensor
#set up digital io
import matplotlib.pyplot as plt
import RPi.GPIO as IO          #calling header file which helps us use GPIO’s of PI
IO.setwarnings(False)           #do not show any warnings
IO.setmode (IO.BCM)         #we are programming the GPIO by BCM pin numbers. (PIN35 as    ‘GPIO19’)
IO.setup(19,IO.OUT)           # initialize GPIO19 as an output, not important for the pressure     sensor or load cell
#set up i2c
import time
import smbus
from time import sleep
bus = smbus.SMBus(1) #I2C channel 1 is connected to the GPIO pins 2 (SDA) and 4 (SCL)
channel = 1          #select channel
t=0
plt.figure()
#Condition sensor for continuous measurements
LOAD_SENSOR_ADDRESS=0x28
dummy_command=0x00
offset=1000
#offset=int((input("Enter offset value, default 1000:") or 1000))                                            #subtracts zero offset per data sheet, should be 1000
LOAD_SENSOR_DATA=bus.read_byte(LOAD_SENSOR_ADDRESS)#This apparently turns the load sensor on,    only need it once
running_max = 0
#take continuous measurements and report
while 1:
    bus.write_byte(LOAD_SENSOR_ADDRESS,dummy_command)                                              #without this command, the status bytes go high on every other read
    LOAD_SENSOR_DATA=bus.read_i2c_block_data(LOAD_SENSOR_ADDRESS,dummy_command,2)      
    LBS_DATA_SENSOR1=((LOAD_SENSOR_DATA[0]&63)*2**8 + LOAD_SENSOR_DATA[1] - offset)*100/14000                                                                                  #It does return the correct two bytes after the initial read byte command    
    if LBS_DATA_SENSOR1 > running_max:
        running_max = LBS_DATA_SENSOR1
    plt.plot(t, LBS_DATA_SENSOR1, 'c-')
    plt.xlim(0, t+1)
    plt.ylim(0, running_max + 10)
    plt.pause(0.01)
    t += .01

我已经看了文档，并试图改变线的样式，以许多东西，但它总是结束了什么也没有绘制或绘制修改的点在任何大小和颜色，我想要的线。我已经问了聊天GPT，我已经添加了一个等待时间的程序赶上，我已经搜索了互联网的解决方案，但我空手而归。