forked from CS-SI/TerreImage
/
terre_image_utils.py
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/
terre_image_utils.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
QGISEducation
A QGIS plugin
QGISEducation
-------------------
begin : 2014-05-13
copyright : (C) 2014 by CNES
email : alexia.mondot@c-s.fr
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
"""
import os
import datetime
import codecs
from collections import OrderedDict
import re
from PyQt4.QtGui import QFileDialog, QMessageBox
from PyQt4.QtCore import QDir, QSettings
from working_layer import WorkingLayer
from manage_bands import manage_bands
import manage_QGIS
import terre_image_processing
from terre_image_constant import TerreImageConstant
from processing_manager import ProcessingManager
import terre_image_gdal_system
import terre_image_gdal_api
# import logging for debug messages
import terre_image_logging
logger = terre_image_logging.configure_logger()
def fill_default_directory():
"""
Creates working directory
Fills the output directory line edit if ui given
"""
datetime_now = datetime.datetime.now().strftime("%Y%m%d-%H%M%S")
current_directory = os.path.join(os.getenv("HOME"), "TerreImage", datetime_now)
if not os.path.exists(current_directory):
os.makedirs(current_directory)
return current_directory, datetime_now
def getOutputDirectory(ui):
"""
Opens a dialog to get the output directory
"""
current_directory = ui.lineEdit_working_dir.text()
if ui.lineEdit_working_dir.text():
path = current_directory
else:
path = QDir.currentPath()
output_directory = ""
dir_dest = QFileDialog.getExistingDirectory(None, u"Répertoire de destination des fichiers de TerreImage", path)
if dir_dest:
ui.lineEdit_working_dir.setText(dir_dest)
output_directory = dir_dest
update_subdirectories(output_directory)
# except UnicodeEncodeError:
# QMessageBox.warning( None , "Erreur", u'Le répertoire que vous avec sélectionné contient un ou des caractères spéciaux. \
# La version actuelle du plugin ne gère pas ce type de répertoires. \
# Veuillez renommer le répertoire ou choisir un autre emplacement.', QMessageBox.Ok )
return output_directory
def update_subdirectories(output_directory):
"""
Create sub directories for the processings:
Classification : this directory will contain the results of the classification
KMZ : this directory will contain the internal files generated by KMZ Export
KMEans : this directory will contain the internal files of the kmeans process
"""
sub = ['Classification', 'Internal']
for item in sub:
if not os.path.exists(os.path.join(output_directory, item)):
os.makedirs(os.path.join(output_directory, item))
def working_layer(canvas):
source = canvas.currentLayer().source()
layer = WorkingLayer(source, canvas.currentLayer())
# self.layer = self.canvas.currentLayer()
if layer:
# self.define_bands(self.layer)
# manage_bands()
# self.red, self.green, self.blue, self.pir, self.mir = manage_bands().get_values()
red, green, blue, pir, mir = manage_bands().get_values()
bands = {'red': red, 'green': green, 'blue': blue, 'pir': pir, 'mir': mir}
layer.set_bands(bands)
logger.debug("{} {} {} {} {}".format(red, green, blue, pir, mir))
return layer
def set_current_layer(iface):
layer, bands = get_workinglayer_on_opening(iface)
if layer:
working_directory = os.path.join(os.path.dirname(layer.source_file), "working_directory")
update_subdirectories(working_directory)
if not os.path.exists(working_directory):
os.makedirs(working_directory)
ProcessingManager().working_layer = layer
# self.classif_tool.set_layers(ProcessingManager().get_qgis_working_layers(), self.layer.get_qgis_layer(), self.layer.band_invert)
# self.classif_tool.set_directory(self.working_directory)
# self.classif_tool.setupUi()
# layers_for_value_tool.append(layer ) #.get_qgis_layer())
logger.debug("working directory" + working_directory)
return layer, bands, working_directory
return None, None, None
def get_workinglayer_on_opening(iface):
settings = QSettings()
last_folder = settings.value("terre_image_last_folder")
if last_folder:
path = last_folder
else:
path = QDir.currentPath()
file_opened = QFileDialog.getOpenFileName(None, "Selectionner un fichier raster", path)
settings.setValue("terre_image_last_folder", os.path.dirname(file_opened))
settings.sync()
if file_opened:
# try:
# str(file_opened)
# except UnicodeEncodeError:
# QMessageBox.warning( None , "Erreur", u'L\'image que vous essayez d\'ouvrir contient un ou des caractères spéciaux. \
# La version actuelle du plugin ne gère pas ce type de fichiers. \
# Veuillez renommer le fichier et ou les répertoires le contenant.', QMessageBox.Ok )
# return None, None
# else:
# if file_opened.find(" ") != -1:
# QMessageBox.warning( None , "Attention", u'L\'image que vous essayez d\'ouvrir contient un ou plusieurs espaces. Les traitements sur cette image provoqueront une erreur.'.encode('utf8'), QMessageBox.Ok )
if file_opened.endswith(".qgs"):
# open new qgis project
pass
else:
raster_layer = manage_QGIS.get_raster_layer(file_opened, os.path.splitext(os.path.basename(file_opened))[0])
type_image = terre_image_processing.get_sensor_id(file_opened)
logger.debug("type_image {}".format(type_image))
layer = WorkingLayer(file_opened, raster_layer)
layer.set_type(type_image)
# self.layer = self.canvas.currentLayer()
if layer:
# self.define_bands(self.layer)
# manage_bands()
# self.red, self.green, self.blue, self.pir, self.mir = manage_bands().get_values()
red, green, blue, pir, mir = manage_bands(type_image, layer.get_band_number()).get_values()
if red != -1 or green != -1 or blue != -1 or pir != -1 or mir != -1:
all_set = True
bands = {'red': red, 'green': green, 'blue': blue, 'pir': pir, 'mir': mir}
for i in range(1, layer.get_band_number() + 1):
if i not in bands.values():
all_set = False
if all_set:
layer.set_bands(bands)
logger.debug("{} {} {} {} {}".format(red, green, blue, pir, mir))
cst = TerreImageConstant()
cst.index_group = cst.iface.legendInterface().addGroup("Terre Image", True, None)
manage_QGIS.add_qgis_raser_layer(raster_layer, iface.mapCanvas(), bands)
terre_image_gdal_system.compute_overviews(file_opened)
return layer, bands
else:
QMessageBox.warning(None, "Erreur",
u'Il y a un problème dans la définition des bandes spectrales.',
QMessageBox.Ok)
return None, None
else:
return None, None
else:
return None, None
def restore_working_layer(filename, bands, layer_type):
raster_layer = manage_QGIS.get_raster_layer(filename, os.path.splitext(os.path.basename(filename))[0])
layer = WorkingLayer(filename, raster_layer)
layer.set_type(layer_type)
layer.set_bands(bands)
return layer, bands
def get_info_from_metadata(image_source, sat):
"""
Args:
image_source:
Returns:
"""
image_file_name_without_extension = os.path.splitext(image_source)[0]
metadata_file = image_file_name_without_extension + ".MTD"
# get image size and resolution
(total_size_x, total_size_y),\
(pixel_size_x, pixel_size_y) = terre_image_gdal_api.get_image_size_with_gdal(image_source,
True)
dict_user_metadata = OrderedDict({})
if not os.path.exists(metadata_file):
logger.warning("Fichier metadonnees manquant")
else:
lines = None
try:
# try unix format
f=codecs.open(metadata_file, mode="r", encoding='utf-8')
lines = f.readlines()
except UnicodeError:
# try windows format
try:
f=codecs.open(metadata_file, mode="r", encoding='mbcs')
lines = f.readlines()
except UnicodeError:
logger.error("Impossible de lire le fichier MTD")
if not lines:
return
for line in lines:
split = re.split("\s", line)
if len(split)<2:
continue
key = re.split("\s", line)[0]
values = " ".join(re.split("\s", line)[1:])
dict_user_metadata[key] = values
f.close()
if not "Lieu" in dict_user_metadata.keys():
dict_user_metadata["Lieu"] = "Inconnu"
if sat is None:
if not "Satellite" in dict_user_metadata.keys():
sat = "Inconnu"
else:
sat = dict_user_metadata["Satellite"]
del dict_user_metadata["Satellite"]
list_to_display = [(u"Satellite", sat),
(u"Lieu", dict_user_metadata["Lieu"]),
(u"Lignes", str(total_size_x)),
(u"Colonnes", str(total_size_y)),
(u"Résolution", str(pixel_size_x))]
del dict_user_metadata["Lieu"]
for key, value in dict_user_metadata.iteritems():
list_to_display.append((key, value))
return list_to_display