Gabe/lidarutils
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added first pass of CLI options. can change output resoltion and output

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gabriel venberg 2021-03-18 00:30:34 -05:00
parent 6335c4b474
commit 9787052272
1 changed files with 26 additions and 15 deletions
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outputHightMap.py
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@ -1,20 +1,38 @@
#! /usr/bin/env python3 #! /usr/bin/env python3
#command line arguments: #command line arguments:
# --help, -h, outputs usage of the program # -x, -y, width and hight of the output image
# -x, -y, outputs width and hight of the output image # --output, -o, name of output file. if there are multiple input files, there will be a number prepended to this.
# --output, -o, name of output file. if there are multiple input files, there will be a number prepended to this. # after all comamnd line arguments, file or files(space seperated) to process.
# after all comamnd line arguments, file or files(space seperated) to process.
import os.path import os.path
import numpy as np import numpy as np
import sys, argparse, laspy, logging import sys, argparse, laspy, logging
import seaborn as sns; sns.set_theme() import seaborn as sns; sns.set_theme()
import matplotlib.pyplot as plt import matplotlib.pyplot as plt
from PIL import Image
logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.INFO) logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.INFO)
#logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.DEBUG) #logging.basicConfig(format='%(asctime)s:%(message)s', level=logging.DEBUG)
def parse_arguments():
parser = argparse.ArgumentParser(description='create a top down hightmap from a LIDAR point file.')
parser.add_argument('file', help='.las file to process.')
parser.add_argument('-x', default=100, type=int, help='horizontal size (in cells) of the output image. Defaults to 100')
parser.add_argument('-y', default=100, type=int, help='vertical size (in cells) if the output image. Defaults to 100')
parser.add_argument('-o', '--output', help='name of output file. will default to [name of input file].png if not given.')
args=parser.parse_args()
imgX=args.x
imgY=args.y
inFile=args.file
if args.output==None:
outFile = f'{os.path.dirname(inFile)}/{os.path.basename(inFile)}.png'
else:
outFile=args.output
print(f'outputing to {outFile}')
def scale(array, desiredmaxX, desiredmaxY): def scale(array, desiredmaxX, desiredmaxY):
logging.debug(f'xMax is {np.max(array[:,xDim])} and xMin is {np.min(array[:,xDim])}') logging.debug(f'xMax is {np.max(array[:,xDim])} and xMin is {np.min(array[:,xDim])}')
logging.debug(f'yMax is {np.max(array[:,yDim])} and yMin is {np.min(array[:,yDim])}') logging.debug(f'yMax is {np.max(array[:,yDim])} and yMin is {np.min(array[:,yDim])}')
@ -34,18 +52,11 @@ def scale(array, desiredmaxX, desiredmaxY):
return array return array
imgX=500
imgY=500
#TODO: make it iterate over multiple files. #TODO: make it iterate over multiple files.
inFile = os.path.realpath(sys.argv[1]) parse_arguments()
lasFile = laspy.file.File(inFile, mode = 'r')
outFile = f'{os.path.dirname(inFile)}/{imgX}*{imgY}{os.path.basename(inFile)}.png'
print(f'outputing to {outFile}')
#import each dimention scaled. #import each dimention scaled.
lasFile=laspy.file.File(inFile, mode = 'r')
z = lasFile.z z = lasFile.z
x = lasFile.x x = lasFile.x
y = lasFile.y y = lasFile.y
@ -53,7 +64,7 @@ intensity = lasFile.intensity
points = np.stack((z,x,y), axis=-1) points = np.stack((z,x,y), axis=-1)
#dimention that will be z(top down) dimention in final heatmap. TODO: auto detect this based on dimention with least variance. #dimention that will be z(top down) dimention in final heatmap. TODO: auto detect this based on dimention with least variance, while being overridable on the command line.
zDim=1 zDim=1
xDim=2 xDim=2
yDim=0 yDim=0