I try to make this code to open LAS files make a change and then save the result in a new LAS file. The las file contains points which have coordinates (X and Y) and values (like Z for elevation). Unfortunately the code works if I don't put the saving part into it, but when I do like below, I got the following error:
Traceback (most recent call last):
File "C:\Users\Geri\Desktop\Sync\pythonlas\envisecond.py", line 33, in <module>
listx1=p.append(listx1, float[newx])
AttributeError: 'float' object has no attribute 'append'
enter code here
So far I know I need an array to save the values to the las file at the end of the code:
import laspy
import laspy.file
import numpy as p
header = laspy.header.Header()
inFile2 = laspy.file.File("C:\\Users\\Geri\\Desktop\\Sync\\pythonlas\\mapperclip\\2clip.las", mode = "r")
inFile3 = laspy.file.File("C:\\Users\\Geri\\Desktop\\Sync\\pythonlas\\mapperclip\\3clip.las", mode = "r")
point_records = inFile2.points
point_records = inFile3.points
t=0
listx1=p.array([], dtype=float)
listy1=p.array([], dtype=float)
listz1=p.array([], dtype=float)
while t < 415:
z=0
q=0
p=0.1
while z==0:
xmin=inFile3.x[t]-p
ymin=inFile3.y[t]-p
xmax=inFile3.x[t]+p
ymax=inFile3.y[t]+p
n=0
for points in inFile2.points:
ax=inFile2.x[n]
ay=inFile2.y[n]
if ax > xmin and ax < xmax and ay < ymax and ay > ymin:
newx = [inFile3.x[t]-((inFile3.x[t]-inFile2.x[n])/2)]
newy = [inFile3.y[t]-((inFile3.y[t]-inFile2.y[n])/2)]
newz = [inFile3.z[t]-((inFile3.z[t]-inFile2.z[n])/2)]
listx1=p.append(listx1, float[newx])
listy1=p.append(listy1, float[newy])
listz1=p.append(listz1, float[newz])
print listx1
print n
n+=1
q+=1
t+=1
else:
n+=1
if q>0:
z+=1
else:
p+=0.1
outfile = laspy.file.File("C:\\Users\\Geri\\Desktop\\Sync\\pythonlas\\mapperclip\\output2.las", mode="w", header=header)
outfile.X = [listx1]
outfile.Y = [listy1]
outfile.Z = [listz1]
outfile.close()
You set p
to a float
at the start of your outer while
loop:
p=0.1
That masks the numpy
import at the top:
import numpy as p
so within the while
loop p
is no longer the module, it is a float
object and the call p.append()
calls will fail.
Use a different name for the module or the float
value.