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RasterKR_HDKSHTRS96DirInv.py
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RasterKR_HDKSHTRS96DirInv.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
RasterKR_HDKSHTRS96DirInv.py
---------------------
Date : March 2015
Copyright : (C) 2015 by Giovanni Manghi
Email : giovanni dot manghi at naturalgis dot pt
***************************************************************************
* *
* 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__ = 'Giovanni Manghi'
__date__ = 'March 2015'
__copyright__ = '(C) 2015, Giovanni Manghi'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import inspect
import os
from PyQt4.QtGui import QIcon
from processing.gui.Help2Html import getHtmlFromRstFile
try:
from processing.parameters.ParameterRaster import ParameterRaster
from processing.parameters.ParameterSelection import ParameterSelection
from processing.outputs.OutputRaster import OutputRaster
except:
from processing.core.parameters import ParameterRaster
from processing.core.parameters import ParameterSelection
from processing.core.outputs import OutputRaster
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
class RasterKR_HDKSHTRS96DirInv(GeoAlgorithm):
INPUT = 'INPUT'
OUTPUT = 'OUTPUT'
TRANSF = 'TRANSF'
TRANSF_OPTIONS = ['Direct: Old Data -> HTRS96/Croatia TM [EPSG:3765]',
'Inverse: HTRS96/Croatia TM [EPSG:3765] -> Old Data']
CRS = 'CRS'
CRS_OPTIONS = ['HDKS5 [Custom]','HDKS6 [Custom]']
GRID = 'GRID'
GRID_OPTIONS = ['HRNTv2']
def getIcon(self):
return QIcon(os.path.dirname(__file__) + '/icons/hr.png')
def help(self):
name = self.commandLineName().split(':')[1].lower()
filename = os.path.join(os.path.dirname(inspect.getfile(self.__class__)), 'help', name + '.rst')
try:
html = getHtmlFromRstFile(filename)
return True, html
except:
return False, None
def defineCharacteristics(self):
self.name = '[HR] Direct and inverse Raster Tranformation'
self.group = '[HR] Croatia'
self.addParameter(ParameterRaster(self.INPUT, 'Input raster', False))
self.addParameter(ParameterSelection(self.TRANSF, 'Transformation',
self.TRANSF_OPTIONS))
self.addParameter(ParameterSelection(self.CRS, 'Old Datum',
self.CRS_OPTIONS))
self.addParameter(ParameterSelection(self.GRID, 'NTv2 Grid',
self.GRID_OPTIONS))
self.addOutput(OutputRaster(self.OUTPUT, 'Output'))
def processAlgorithm(self, progress):
if self.getParameterValue(self.TRANSF) == 0:
# Direct transformation
arguments = ['-s_srs']
if self.getParameterValue(self.CRS) == 0:
# HDKS5
if self.getParameterValue(self.GRID) == 0:
# HR_NTv2
arguments.append('+proj=tmerc +pm=greenwich +lat_0=0 +lon_0=15 +k=0.9999 +x_0=5500000 +y_0=0 +ellps=bessel +nadgrids=' + os.path.dirname(__file__) + '/grids/HRNTv2.gsb +wktext +units=m')
else:
# HDKS6
if self.getParameterValue(self.GRID) == 0:
# HR_NTv2
arguments.append('+proj=tmerc +pm=greenwich +lat_0=0 +lon_0=18 +k=0.9999 +x_0=6500000 +y_0=0 +ellps=bessel +nadgrids=' + os.path.dirname(__file__) + '/grids/HRNTv2.gsb +wktext +units=m')
arguments.append('-t_srs')
arguments.append('EPSG:3765')
else:
# Inverse transformation
arguments = ['-s_srs']
arguments.append('EPSG:3765')
arguments.append('-t_srs')
if self.getParameterValue(self.CRS) == 0:
# HDKS5
if self.getParameterValue(self.GRID) == 0:
# HR_NTv2
arguments.append('+proj=tmerc +pm=greenwich +lat_0=0 +lon_0=15 +k=0.9999 +x_0=5500000 +y_0=0 +ellps=bessel +nadgrids=' + os.path.dirname(__file__) + '/grids/HRNTv2.gsb +wktext +units=m')
else:
# HDKS6
if self.getParameterValue(self.GRID) == 0:
# HR_NTv2
arguments.append('+proj=tmerc +pm=greenwich +lat_0=0 +lon_0=18 +k=0.9999 +x_0=6500000 +y_0=0 +ellps=bessel +nadgrids=' + os.path.dirname(__file__) + '/grids/HRNTv2.gsb +wktext +units=m')
arguments.append('-multi')
arguments.append('-of')
out = self.getOutputValue(self.OUTPUT)
arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
arguments.append(self.getParameterValue(self.INPUT))
arguments.append(out)
if os.path.isfile(os.path.dirname(__file__) + '/grids/HRNTv2.gsb') is False:
try:
from urllib import urlretrieve
except ImportError:
from urllib.request import urlretrieve
urlretrieve ("https://github.com/NaturalGIS/ntv2_transformations_grids_and_sample_data/raw/master/hr/HRNTv2.gsb", os.path.dirname(__file__) + "/grids/HRNTv2.gsb")
GdalUtils.runGdal(['gdalwarp', GdalUtils.escapeAndJoin(arguments)],
progress)