QGIS/python/plugins/processing/lidar/lastools/lasgrid.py

# -*- coding: utf-8 -*-

"""
***************************************************************************
    lasgrid.py
    ---------------------
    Date                 : August 2012
    Copyright            : (C) 2012 by Victor Olaya
    Email                : volayaf at gmail dot com
    ---------------------
    Date                 : September 2013
    Copyright            : (C) 2013 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__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

import os
from PyQt4 import QtGui
from processing.lidar.lastools.LAStoolsUtils import LAStoolsUtils
from processing.lidar.lastools.LAStoolsAlgorithm import LAStoolsAlgorithm

from processing.parameters.ParameterString import ParameterString
from processing.parameters.ParameterBoolean import ParameterBoolean
from processing.parameters.ParameterSelection import ParameterSelection


class lasgrid(LAStoolsAlgorithm):

    ATTRIBUTE = 'ATTRIBUTE'
    METHOD = 'METHOD'
    ATTRIBUTES = ['elevation', 'intensity', 'rgb', 'classification']
    METHODS = ['lowest', 'highest', 'average', 'stddev']

    def defineCharacteristics(self):
        self.name = 'lasgrid'
        self.group = 'LAStools'
        self.addParametersVerboseGUI()
        self.addParametersPointInputGUI()
        self.addParametersFilter1ReturnClassFlagsGUI()
        self.addParametersStepGUI()
        self.addParameter(ParameterSelection(lasgrid.ATTRIBUTE, 'Attribute',
                          lasgrid.ATTRIBUTES, 0))
        self.addParameter(ParameterSelection(lasgrid.METHOD, 'Method',
                          lasgrid.METHODS, 0))
        self.addParametersRasterOutputGUI()

    def processAlgorithm(self, progress):
        commands = [os.path.join(LAStoolsUtils.LAStoolsPath(), 'bin',
                    'lasgrid.exe')]
        self.addParametersVerboseCommands(commands)
        self.addParametersPointInputCommands(commands)
        self.addParametersFilter1ReturnClassFlagsCommands(commands)
        self.addParametersStepCommands(commands)
        attribute = self.getParameterValue(lasgrid.ATTRIBUTE)
        if attribute != 0:
            commands.append('-' + lasgrid.ATTRIBUTES[attribute])
        method = self.getParameterValue(lasgrid.METHOD)
        if method != 0:
            commands.append('-' + lasgrid.METHODS[method])
        self.addParametersRasterOutputCommands(commands)

        LAStoolsUtils.runLAStools(commands, progress)