-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathlaser_labview1.1.py
199 lines (173 loc) · 5.85 KB
/
laser_labview1.1.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
# -*- coding: utf-8 -*-
"""
Created on Thu Sep 19 19:51:16 2019
@author: Jingxu Xie
v1.0 跟随鼠标路径画直线，0关闭激光，显示绿色，安全，1打开激光，红色危险，按q退出，按x清除并重新画线
v1.1 输出结果为始末点坐标，而非线上每个点的坐标，可以实时输出线段长度
"""
import numpy as np
import cv2
def Bresenham_Algorithm(x0,y0,x1,y1):#返回值为list
xindex=[]
yindex=[]
xindex.append(x0)#记录初始位置，最终数组中两条线的交点始末点会重复一次
yindex.append(y0)
dx=abs(x1-x0)
dy=abs(y1-y0)
InclineRate=0#斜率小于45度
if dx<dy:
InclineRate=1#斜率大于45度
x0,y0=y0,x0
x1,y1=y1,x1
dx,dy=dy,dx
dx=abs(x1-x0)
dy=abs(y1-y0)
x=x0
y=y0
d=dy*2-dx
if (x1-x0)>0:
ix=1
else:
ix=-1
if (y1-y0)>0:
iy=1
else:
iy=-1
if InclineRate==0:
while (x!=x1):
if d<0:
d+=dy*2
else:
d+=(dy-dx)*2
y+=iy
#cv2.circle(img,(x,y),1,(0,0,255))
x+=ix
xindex.append(x)
yindex.append(y)
if InclineRate==1:
while (x!=x1):
if d<0:
d+=dy*2
else:
d+=(dy-dx)*2
y+=iy
#cv2.circle(img,(y,x),1,(0,0,255))
x+=ix
xindex.append(y)
yindex.append(x)
return xindex, yindex #返回的是list
def draw_line(event,x,y,flags,param):
global drawing,a,b,e,f,switch,oldpx,oldpy,poswitch,count,LengthD,textposx,textposy
# global img_copy
if event == cv2.EVENT_LBUTTONDOWN:
switch=0
drawing = True
a,b= x,y
textposx,textposy=a,b
posx.append(x)
posy.append(y)
if switch==0:
poswitch.append(0)
if switch==1:
poswitch.append(1)
count+=1
elif event == cv2.EVENT_MOUSEMOVE:
if drawing == True and LengthD==0:
textposx,textposy=textposy,textposx
for i in range(50):
img_copy[textposx-20:textposx+20,textposy-i+50,:]=img0[textposx-20:textposx+20,textposy-i+50,:].copy()
oldpx,oldpy=Bresenham_Algorithm(b,a,f,e)
img_copy[oldpx,oldpy,:]=img0[oldpx,oldpy,:].copy()
oldpx,oldpy=Bresenham_Algorithm(f,e,b,a)#用于二次消除干净，并不清楚bug来源
img_copy[oldpx,oldpy,:]=img0[oldpx,oldpy,:].copy()
if switch==0:
#img_copy=img0.copy()
cv2.line(img_copy,(a,b),(x,y),(0,255,0),1)#关闭，绿色，安全
if switch==1:
cv2.line(img_copy,(a,b),(x,y),(0,0,255),1)#打开，红色，危险
e,f=x,y
d=np.sqrt((x-a)**2+(y-b)**2)+0.0001
textposx=int(round((a+x)/2-60*(y-b)/d))
if textposx > (a+x)/2:
textposx=int(round((a+x)/2-15*(y-b)/d))
textposy=int(round((b+y)/2+30*(x-a)/d))
if textposy < (b+y)/2:
textposy=int(round((b+y)/2+20*(x-a)/d))
text=str(round(d,1))
if round(d,1)>0:
if switch==0:
cv2.putText(img_copy,text,(textposx,textposy),cv2.FONT_HERSHEY_PLAIN,1.0,[0,255,0],1)
if switch==1:
cv2.putText(img_copy,text,(textposx,textposy),cv2.FONT_HERSHEY_PLAIN,1.0,[0,0,255],1)
oldpx,oldpy=Bresenham_Algorithm(b,a,f,e)#计算新的线的坐标
#a,b=x,y
#print(x,y)
elif event == cv2.EVENT_RBUTTONDOWN:
textposx,textposy=textposy,textposx
for i in range(50):
img_copy[textposx-20:textposx+20,textposy-i+50,:]=img0[textposx:textposx+40,textposy-i,:].copy()
oldpx,oldpy=Bresenham_Algorithm(b,a,f,e)
img_copy[oldpx,oldpy,:]=img0[oldpx,oldpy,:]
drawing = False
#a,b=x,y
def main():
global drawing,a,b,e,f,switch,oldpx,oldpy,poswitch,count,img0,img_copy,posx,posy,LengthD
LengthD=0 #给定线的长度
drawing = False # true if mouse is pressed
a,b,e,f=0,0,0,0
switch=0#开关
count=0#计数
linemax=20#可画的最多线条数
posx = []#记录位置
posy = []
poswitch = []
oldpx=[]#记录旧的直线坐标
oldpy=[]
#img0 = np.zeros((800,800,3), np.uint8)
img0=cv2.imread('test.png')
img_copy=img0.copy()
cv2.namedWindow('image')
cv2.moveWindow('image',300,100)
cv2.setMouseCallback('image',draw_line)
while(1):
cv2.imshow('image',img_copy)
k = cv2.waitKeyEx(1)
'''
if k!=-1:
ans=k
print(ans)
'''
if k == 2490368:#上
LengthD+=1
if k == 2621440:#下
LengthD-=1
if k == 2424832:#左
LengthD-=0.1
if k == 2555904:#右
LengthD+=0.1
if k == ord('5'):#恢复自由
LengthD=0
if k == ord('0'):#设置关
switch=0
if k == ord ('1'):#开
switch=1
if k == ord ('x'):#清除重画
count=0#计数清零
posx = [list() for i in range(linemax)]#位置清零
posy = [list() for i in range(linemax)]
poswitch = [list() for i in range(linemax)]
img_copy=img0.copy()
if k == ord('q'):#退出
break
outposx=np.array(posx)
outposy=np.array(posy)
outposwitch=np.array(poswitch)
OutPut=np.vstack((outposx,outposy))
OutPut=np.vstack((OutPut,outposwitch))
OutPut=np.transpose(OutPut)
#print(OutPut)
cv2.destroyAllWindows()
out=OutPut.copy()#通过copy来消除strided arrays
return out
#np.array([[1000,1000,1000],[1000,10000,10000],[20000,2000,20000]])
a=main()