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# -*- coding: utf-8 -*-
"""
***************************************************************************
flightlinesToDTMandDSM.py
---------------------
Date : April 2014
Copyright : (C) 2014 by Martin Isenburg
Email : martin near rapidlasso point com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Martin Isenburg'
__date__ = 'May 2014'
__copyright__ = '(C) 2014, Martin Isenburg'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from LAStoolsUtils import LAStoolsUtils
from LAStoolsAlgorithm import LAStoolsAlgorithm
from processing.parameters.ParameterSelection import ParameterSelection
from processing.parameters.ParameterNumber import ParameterNumber
from processing.parameters.ParameterString import ParameterString
class flightlinesToDTMandDSM(LAStoolsAlgorithm):
TILE_SIZE = "TILE_SIZE"
BUFFER = "BUFFER"
TERRAIN = "TERRAIN"
TERRAINS = ["wilderness", "nature", "town", "city", "metro"]
BASE_NAME = "BASE_NAME"
def defineCharacteristics(self):
self.name = "flightlinesToDTMandDSM"
self.group = "LAStools Pipelines"
self.addParametersPointInputFolderGUI()
self.addParameter(ParameterNumber(flightlinesToDTMandDSM.TILE_SIZE, "tile size (side length of square tile)", 0, None, 1000.0))
self.addParameter(ParameterNumber(flightlinesToDTMandDSM.BUFFER, "buffer around each tile (avoids edge artifacts)", 0, None, 25.0))
self.addParameter(ParameterSelection(flightlinesToDTMandDSM.TERRAIN, "terrain type", flightlinesToDTMandDSM.TERRAINS, 1))
self.addParametersStepGUI()
self.addParametersTemporaryDirectoryGUI()
self.addParametersOutputDirectoryGUI()
self.addParameter(ParameterString(flightlinesToDTMandDSM.BASE_NAME, "tile base name (using 'sydney' creates sydney_274000_4714000...)","tile"))
self.addParametersRasterOutputFormatGUI()
self.addParametersCoresGUI()
self.addParametersVerboseGUI()
def processAlgorithm(self, progress):
# first we tile the data
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lastile.exe")]
self.addParametersVerboseCommands(commands)
self.addParametersPointInputFolderCommands(commands)
commands.append("-files_are_flightlines")
tile_size = self.getParameterValue(flightlinesToDTMandDSM.TILE_SIZE)
commands.append("-tile_size")
commands.append(str(tile_size))
buffer = self.getParameterValue(flightlinesToDTMandDSM.BUFFER)
if buffer != 0.0:
commands.append("-buffer")
commands.append(str(buffer))
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
base_name = self.getParameterValue(flightlinesToDTMandDSM.BASE_NAME)
if base_name == "":
base_name = "tile"
commands.append("-o")
commands.append(base_name)
commands.append("-olaz")
LAStoolsUtils.runLAStools(commands, progress)
# then we ground classify the tiles
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lasground.exe")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, base_name+"*.laz")
method = self.getParameterValue(flightlinesToDTMandDSM.TERRAIN)
if method != 1:
commands.append("-" + flightlinesToDTMandDSM.TERRAINS[method])
if method > 2:
commands.append("-ultra_fine")
elif method > 1:
commands.append("-extra_fine")
elif method > 0:
commands.append("-fine")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-odix")
commands.append("_g")
commands.append("-olaz")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into DTMs
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem.exe")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, base_name+"*_g.laz")
commands.append("-keep_class")
commands.append("2")
self.addParametersStepCommands(commands)
commands.append("-use_tile_bb")
self.addParametersOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("2")
commands.append("-odix")
commands.append("_dtm")
self.addParametersRasterOutputFormatCommands(commands)
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into DSMs
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem.exe")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, base_name+"*_g.laz")
commands.append("-first_only")
self.addParametersStepCommands(commands)
commands.append("-use_tile_bb")
self.addParametersOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("2")
commands.append("-odix")
commands.append("_dsm")
self.addParametersRasterOutputFormatCommands(commands)
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
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