QGIS/python/plugins/processing/algs/lidar/fusion/ClipData.py

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

"""
***************************************************************************
    ClipData.py
    ---------------------
    Date                 : August 2012
    Copyright            : (C) 2012 by Victor Olaya
    Email                : volayaf at gmail dot 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
import subprocess
from processing.core.parameters import ParameterFile
from processing.core.parameters import ParameterExtent
from processing.core.parameters import ParameterSelection
from processing.core.outputs import OutputFile
from FusionAlgorithm import FusionAlgorithm
from FusionUtils import FusionUtils


class ClipData(FusionAlgorithm):

    INPUT = 'INPUT'
    OUTPUT = 'OUTPUT'
    EXTENT = 'EXTENT'
    SHAPE = 'SHAPE'

    def defineCharacteristics(self):
        self.name = 'Clip Data'
        self.group = 'Points'
        self.addParameter(ParameterFile(self.INPUT, 'Input las layer'))
        self.addParameter(ParameterExtent(self.EXTENT, 'Extent'))
        self.addParameter(ParameterSelection(self.SHAPE, 'Shape',
                          ['Rectangle', 'Circle']))
        self.addOutput(OutputFile(self.OUTPUT, 'Output clipped las file'))
        self.addAdvancedModifiers()

    def processAlgorithm(self, progress):
        commands = [os.path.join(FusionUtils.FusionPath(), 'FilterData.exe')]
        commands.append('/verbose')
        self.addAdvancedModifiersToCommand(commands)
        commands.append('/shape:' + str(self.getParameterValue(self.SHAPE)))
        files = self.getParameterValue(self.INPUT).split(';')
        if len(files) == 1:
            commands.append(self.getParameterValue(self.INPUT))
        else:
            FusionUtils.createFileList(files)
            commands.append(FusionUtils.tempFileListFilepath())
        outFile = self.getOutputValue(self.OUTPUT) + '.lda'
        commands.append(outFile)
        extent = str(self.getParameterValue(self.EXTENT)).split(',')
        commands.append(extent[0])
        commands.append(extent[2])
        commands.append(extent[1])
        commands.append(extent[3])
        FusionUtils.runFusion(commands, progress)
        commands = [os.path.join(FusionUtils.FusionPath(), 'LDA2LAS.exe')]
        commands.append(outFile)
        commands.append(self.getOutputValue(self.OUTPUT))
        p = subprocess.Popen(commands, shell=True)
        p.wait()