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# -*- coding: utf-8 -*-
"""
***************************************************************************
flightlinesToSingleCHMpitFree.py
---------------------
Date : May 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.core.parameters import ParameterSelection
from processing.core.parameters import ParameterNumber
class flightlinesToSingleCHMpitFree(LAStoolsAlgorithm):
TILE_SIZE = "TILE_SIZE"
BUFFER = "BUFFER"
TERRAIN = "TERRAIN"
TERRAINS = ["wilderness", "nature", "town", "city", "metro"]
BEAM_WIDTH = "BEAM_WIDTH"
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('flightlinesToSingleCHMpitFree')
self.group, self.i18n_group = self.trAlgorithm('LAStools Pipelines')
self.addParametersPointInputFolderGUI()
self.addParameter(ParameterNumber(flightlinesToSingleCHMpitFree.TILE_SIZE,
self.tr("tile size (side length of square tile)"),
0, None, 1000.0))
self.addParameter(ParameterNumber(flightlinesToSingleCHMpitFree.BUFFER,
self.tr("buffer around each tile (avoids edge artifacts)"),
0, None, 25.0))
self.addParameter(ParameterSelection(flightlinesToSingleCHMpitFree.TERRAIN,
self.tr("terrain type"), flightlinesToSingleCHMpitFree.TERRAINS, 1))
self.addParameter(ParameterNumber(flightlinesToSingleCHMpitFree.BEAM_WIDTH,
self.tr("laser beam width (diameter of laser footprint)"), 0, None, 0.2))
self.addParametersStepGUI()
self.addParametersTemporaryDirectoryGUI()
self.addParametersRasterOutputGUI()
self.addParametersCoresGUI()
self.addParametersVerboseGUI()
def processAlgorithm(self, progress):
# needed for thinning and killing
step = self.getParametersStepValue()
# first we tile the data
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lastile")]
self.addParametersVerboseCommands(commands)
self.addParametersPointInputFolderCommands(commands)
commands.append("-files_are_flightlines")
tile_size = self.getParameterValue(flightlinesToSingleCHMpitFree.TILE_SIZE)
commands.append("-tile_size")
commands.append(unicode(tile_size))
buffer = self.getParameterValue(flightlinesToSingleCHMpitFree.BUFFER)
if buffer != 0.0:
commands.append("-buffer")
commands.append(unicode(buffer))
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-o")
commands.append("tile.laz")
LAStoolsUtils.runLAStools(commands, progress)
# then we ground classify the tiles
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lasground")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*.laz")
method = self.getParameterValue(flightlinesToSingleCHMpitFree.TERRAIN)
if method != 1:
commands.append("-" + flightlinesToSingleCHMpitFree.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 height-normalize the tiles
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lasheight")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_g.laz")
commands.append("-replace_z")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-odix")
commands.append("h")
commands.append("-olaz")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we thin and splat the tiles
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lasthin")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_gh.laz")
beam_width = self.getParameterValue(flightlinesToSingleCHMpitFree.BEAM_WIDTH)
if beam_width != 0.0:
commands.append("-subcircle")
commands.append(unicode(beam_width / 2))
commands.append("-step")
commands.append(unicode(step / 4))
commands.append("-highest")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-odix")
commands.append("t")
commands.append("-olaz")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 00
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
self.addParametersStepCommands(commands)
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm00")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 02
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
commands.append("-drop_z_below")
commands.append("2")
self.addParametersStepCommands(commands)
commands.append("-kill")
commands.append(unicode(step * 3))
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm02")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 05
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
commands.append("-drop_z_below")
commands.append("5")
self.addParametersStepCommands(commands)
commands.append("-kill")
commands.append(unicode(step * 3))
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm05")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 10
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
commands.append("-drop_z_below")
commands.append("10")
self.addParametersStepCommands(commands)
commands.append("-kill")
commands.append(unicode(step * 3))
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm10")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 15
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
commands.append("-drop_z_below")
commands.append("15")
self.addParametersStepCommands(commands)
commands.append("-kill")
commands.append(unicode(step * 3))
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm15")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we rasterize the classified tiles into the partial CHMs at level 20
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "las2dem")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile*_ght.laz")
commands.append("-drop_z_below")
commands.append("20")
self.addParametersStepCommands(commands)
commands.append("-kill")
commands.append(unicode(step * 3))
commands.append("-use_tile_bb")
self.addParametersTemporaryDirectoryAsOutputDirectoryCommands(commands)
commands.append("-ocut")
commands.append("4")
commands.append("-odix")
commands.append("_chm20")
commands.append("-obil")
self.addParametersCoresCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
# then we combine the partial CHMs into a single output CHM
commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), "bin", "lasgrid")]
self.addParametersVerboseCommands(commands)
self.addParametersTemporaryDirectoryAsInputFilesCommands(commands, "tile_chm*.bil")
commands.append("-highest")
self.addParametersStepCommands(commands)
self.addParametersRasterOutputCommands(commands)
LAStoolsUtils.runLAStools(commands, progress)
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