def set_style(self):
# Get requested style for impact layer of either kind
impact = self.impact_layer
style = impact.get_style_info()
style_type = impact.get_style_type()
# Determine styling for QGIS layer
qgis_impact_layer = impact.as_qgis_native()
if impact.is_vector:
LOGGER.debug('myEngineImpactLayer.is_vector')
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif impact.is_raster:
LOGGER.debug('myEngineImpactLayer.is_raster')
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def test_transparency_of_minimum_value(self):
"""Test that transparency of minimum value works when set to 100%
"""
# This dataset has all cells with value 1.3
data_path = test_data_path('other', 'issue126.tif')
layer, _ = load_layer(data_path)
# Note the float quantity values below
style_info = {
'style_classes': [
{'colour': '#FFFFFF', 'transparency': 100, 'quantity': 0.0},
{'colour': '#38A800', 'quantity': 0.038362596547925065,
'transparency': 0, 'label': u'Rendah [0 orang/sel]'},
{'colour': '#79C900', 'transparency': 0,
'quantity': 0.07672519309585013},
{'colour': '#CEED00', 'transparency': 0,
'quantity': 0.1150877896437752},
{'colour': '#FFCC00', 'quantity': 0.15345038619170026,
'transparency': 0, 'label': u'Sedang [0 orang/sel]'},
{'colour': '#FF6600', 'transparency': 0,
'quantity': 0.19181298273962533},
{'colour': '#FF0000', 'transparency': 0,
'quantity': 0.23017557928755039},
{'colour': '#7A0000', 'quantity': 0.26853817583547546,
'transparency': 0, 'label': u'Tinggi [0 orang/sel]'}]}
try:
setRasterStyle(layer, style_info)
except Exception, e:
message = '\nCould not create raster style'
e.args = (e.args[0] + message,)
raise
def test_issue126(self):
"""Test that non integer transparency ranges fail gracefully.
.. seealso:: https://github.com/AIFDR/inasafe/issues/126
"""
# This dataset has all cells with value 1.3
data_path = test_data_path('other', 'issue126.tif')
layer, _ = load_layer(data_path)
# Note the float quantity values below
style_info = {
'style_classes': [
dict(colour='#38A800', quantity=1.1, transparency=100),
dict(colour='#38A800', quantity=1.4, transparency=0),
dict(colour='#79C900', quantity=10.1, transparency=0)
]
}
try:
setRasterStyle(layer, style_info)
except Exception, e:
message = (
'Setting style info with float based ranges should fail '
'gracefully.')
e.args = (e.args[0] + message, )
raise
def test_result_styling(self):
"""Test that colours and opacity from a model are correctly styled."""
settings = QtCore.QSettings()
settings.setValue('inasafe/analysis_extents_mode', 'HazardExposure')
result, message = setup_scenario(
self.dock,
hazard='Continuous Flood',
exposure='Population',
function='Need evacuation',
function_id='FloodEvacuationRasterHazardFunction')
self.assertTrue(result, message)
# Enable on-the-fly reprojection
set_canvas_crs(GEOCRS, True)
set_jakarta_extent(self.dock)
self.dock.accept()
safe_layer = self.dock.impact_function.impact
qgis_layer = read_impact_layer(safe_layer)
style = safe_layer.get_style_info()
setRasterStyle(qgis_layer, style)
# simple test for now - we could test explicitly for style state
# later if needed.
message = ('Raster layer was not assigned a Singleband pseudocolor '
'renderer as expected.')
self.assertEquals(qgis_layer.renderer().type(),
'singlebandpseudocolor', message)
def test_result_styling(self):
"""Test that colours and opacity from a model are correctly styled."""
settings = QtCore.QSettings()
settings.setValue('inasafe/analysis_extents_mode', 'HazardExposure')
result, message = setup_scenario(
self.dock,
hazard='Continuous Flood',
exposure='Population',
function='Need evacuation',
function_id='FloodEvacuationRasterHazardFunction')
self.assertTrue(result, message)
# Enable on-the-fly reprojection
set_canvas_crs(GEOCRS, True)
set_jakarta_extent(self.dock)
self.dock.accept()
safe_layer = self.dock.impact_function.impact
qgis_layer = read_impact_layer(safe_layer)
style = safe_layer.get_style_info()
setRasterStyle(qgis_layer, style)
# simple test for now - we could test explicitly for style state
# later if needed.
message = (
'Raster layer was not assigned a Singleband pseudocolor '
'renderer as expected.')
self.assertEquals(
qgis_layer.renderer().type(), 'singlebandpseudocolor', message)
def test_transparency_of_minimum_value(self):
"""Test that transparency of minimum value works when set to 100%
"""
# This dataset has all cells with value 1.3
data_path = standard_data_path('other', 'issue126.tif')
layer, _ = load_layer(data_path)
# Note the float quantity values below
style_info = {
'style_classes': [
{'colour': '#FFFFFF', 'transparency': 100, 'quantity': 0.0},
{'colour': '#38A800', 'quantity': 0.038362596547925065,
'transparency': 0, 'label': u'Rendah [0 orang/sel]'},
{'colour': '#79C900', 'transparency': 0,
'quantity': 0.07672519309585013},
{'colour': '#CEED00', 'transparency': 0,
'quantity': 0.1150877896437752},
{'colour': '#FFCC00', 'quantity': 0.15345038619170026,
'transparency': 0, 'label': u'Sedang [0 orang/sel]'},
{'colour': '#FF6600', 'transparency': 0,
'quantity': 0.19181298273962533},
{'colour': '#FF0000', 'transparency': 0,
'quantity': 0.23017557928755039},
{'colour': '#7A0000', 'quantity': 0.26853817583547546,
'transparency': 0, 'label': u'Tinggi [0 orang/sel]'}]}
try:
setRasterStyle(layer, style_info)
except Exception, e:
message = '\nCould not create raster style'
e.args = (e.args[0] + message,)
raise
def test_result_styling(self):
"""Test that colours and opacity from a model are correctly styled."""
# Push OK with the left mouse button
print '--------------------'
print combos_to_string(self.dock)
result, message = setup_scenario(
self.dock,
hazard='Continuous Flood',
exposure='Population',
function='Need evacuation',
function_id='FloodEvacuationRasterHazardFunction')
self.assertTrue(result, message)
# Enable on-the-fly reprojection
set_canvas_crs(GEOCRS, True)
set_jakarta_extent(self.dock)
self.dock.accept()
# self.dock.analysis.get_impact_layer()
safe_layer = self.dock.analysis.impact_layer
qgis_layer = read_impact_layer(safe_layer)
style = safe_layer.get_style_info()
setRasterStyle(qgis_layer, style)
# simple test for now - we could test explicity for style state
# later if needed.
message = (
'Raster layer was not assigned a Singleband pseudocolor'
' renderer as expected.')
self.assertTrue(
qgis_layer.renderer().type() == 'singlebandpseudocolor', message)
def test_result_styling(self):
"""Test that ouputs from a model are correctly styled (colours and
opacity. """
# Push OK with the left mouse button
print '--------------------'
print combos_to_string(DOCK)
result, message = setup_scenario(
DOCK,
hazard='A flood in Jakarta like in 2007',
exposure='People',
function='Need evacuation',
function_id='Flood Evacuation Function')
self.assertTrue(result, message)
# Enable on-the-fly reprojection
set_canvas_crs(GEOCRS, True)
set_jakarta_extent(DOCK)
DOCK.accept()
# DOCK.analysis.get_impact_layer()
safe_layer = DOCK.analysis.get_impact_layer()
qgis_layer = read_impact_layer(safe_layer)
style = safe_layer.get_style_info()
setRasterStyle(qgis_layer, style)
# simple test for now - we could test explicity for style state
# later if needed.
message = ('Raster layer was not assigned a Singleband pseudocolor'
' renderer as expected.')
self.assertTrue(
qgis_layer.renderer().type() == 'singlebandpseudocolor', message)
def generate_styles(safe_impact_layer, qgis_impact_layer):
# Get requested style for impact layer of either kind
style = safe_impact_layer.get_style_info()
style_type = safe_impact_layer.get_style_type()
# Determine styling for QGIS layer
if safe_impact_layer.is_vector:
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
set_vector_graduated_style(qgis_impact_layer, style)
elif safe_impact_layer.is_raster:
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def generate_styles(safe_impact_layer, qgis_impact_layer):
# Get requested style for impact layer of either kind
style = safe_impact_layer.get_style_info()
style_type = safe_impact_layer.get_style_type()
# Determine styling for QGIS layer
if safe_impact_layer.is_vector:
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
set_vector_graduated_style(qgis_impact_layer, style)
elif safe_impact_layer.is_raster:
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def test_issue126(self):
"""Test that non integer transparency ranges fail gracefully.
.. seealso:: https://github.com/AIFDR/inasafe/issues/126
"""
# This dataset has all cells with value 1.3
data_path = test_data_path('other', 'issue126.tif')
layer, _ = load_layer(data_path)
# Note the float quantity values below
style_info = {
'style_classes': [
dict(colour='#38A800', quantity=1.1, transparency=100),
dict(colour='#38A800', quantity=1.4, transparency=0),
dict(colour='#79C900', quantity=10.1, transparency=0)]}
try:
setRasterStyle(layer, style_info)
except Exception, e:
message = (
'Setting style info with float based ranges should fail '
'gracefully.')
e.args = (e.args[0] + message,)
raise
def set_impact_style(cls, impact):
# Determine styling for QGIS layer
qgis_impact_layer = impact.as_qgis_native()
style = impact.get_style_info()
style_type = impact.get_style_type()
if impact.is_vector:
LOGGER.debug("myEngineImpactLayer.is_vector")
if not style:
# Set default style if possible
pass
elif style_type == "categorizedSymbol":
LOGGER.debug("use categorized")
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == "graduatedSymbol":
LOGGER.debug("use graduated")
set_vector_graduated_style(qgis_impact_layer, style)
elif impact.is_raster:
LOGGER.debug("myEngineImpactLayer.is_raster")
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def set_style(self):
# get requested style of impact
qml_path = self.flood_fixtures_dir('impact-template.qml')
target_style_path = os.path.join(self.report_path,
'population_aggregate.qml')
keyword_io = KeywordIO()
qgis_exposure_layer = self.exposure_layer.as_qgis_native()
attribute_field = keyword_io.read_keywords(qgis_exposure_layer,
'field')
with open(qml_path) as f_template:
str_template = f_template.read()
# search max_population in an RW
# use generator for memory efficiency
maximum_population = max(
f[attribute_field] for f in qgis_exposure_layer.getFeatures())
range_increment = maximum_population / 5
legend_expressions = {}
for i in range(5):
if i == 0:
marker_label = '< %s' % format_int(range_increment)
elif i < 4:
marker_label = '%s - %s' % (format_int(
range_increment *
i), format_int(range_increment * (i + 1)))
else:
marker_label = '> %s' % format_int(range_increment * 4)
marker_size = \
'scale_linear(' \
'attribute($currentfeature, "%s") ' \
', %d, %d, %d, %d)' % (
self.affect_field,
int(range_increment * i),
int(range_increment * (i + 1)),
i * 2,
(i + 1) * 2,
)
marker_color = \
"set_color_part(" \
"set_color_part('0,0,255','saturation', %d ), 'alpha', " \
"if(attribute($currentfeature, '%s') = 0, " \
"0, 255))" % (i * 20, self.affect_field)
marker_border = \
"set_color_part(" \
"'0,0,0','alpha', " \
"if (to_int(attribute(" \
"$currentfeature, '%s')) = 0, 0, 255))" % \
self.affect_field
legend_expressions['marker-min-range-%d' % i] = \
'%s' % (range_increment * i)
legend_expressions['marker-max-range-%d' % i] = \
'%s' % (range_increment * (i + 1))
legend_expressions['marker-label-%d' % i] = marker_label
legend_expressions['marker-size-%d' % i] = marker_size
legend_expressions['marker-color-%d' % i] = marker_color
legend_expressions['marker-border-%d' % i] = marker_border
for k, v in legend_expressions.iteritems():
str_template = str_template.replace('[%s]' % k, v)
with open(target_style_path, mode='w') as target_f:
target_f.write(str_template)
# Get requested style for impact layer of either kind
impact = self.impact_layer
style = impact.get_style_info()
style_type = impact.get_style_type()
# Determine styling for QGIS layer
qgis_impact_layer = impact.as_qgis_native()
if impact.is_vector:
LOGGER.debug('myEngineImpactLayer.is_vector')
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif impact.is_raster:
LOGGER.debug('myEngineImpactLayer.is_raster')
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def set_style(self):
# get requested style of impact
qml_path = self.flood_fixtures_dir(
'impact-template.qml')
target_style_path = os.path.join(
self.report_path, 'population_aggregate.qml')
keyword_io = KeywordIO()
qgis_exposure_layer = self.exposure_layer.as_qgis_native()
attribute_field = keyword_io.read_keywords(
qgis_exposure_layer, 'field')
with open(qml_path) as f_template:
str_template = f_template.read()
# search max_population in an RW
# use generator for memory efficiency
maximum_population = max(
f[attribute_field] for f
in qgis_exposure_layer.getFeatures()
)
range_increment = maximum_population / 5
legend_expressions = {}
for i in range(5):
if i == 0:
marker_label = '< %s' % format_int(range_increment)
elif i < 4:
marker_label = '%s - %s' % (
format_int(range_increment * i),
format_int(range_increment * (i + 1))
)
else:
marker_label = '> %s' % format_int(range_increment * 4)
marker_size = \
'scale_linear(' \
'attribute($currentfeature, "%s") ' \
', %d, %d, %d, %d)' % (
self.affect_field,
int(range_increment * i),
int(range_increment * (i + 1)),
i * 2,
(i + 1) * 2,
)
marker_color = \
"set_color_part(" \
"set_color_part('0,0,255','saturation', %d ), 'alpha', " \
"if(attribute($currentfeature, '%s') = 0, " \
"0, 255))" % (i * 20, self.affect_field)
marker_border = \
"set_color_part(" \
"'0,0,0','alpha', " \
"if (to_int(attribute(" \
"$currentfeature, '%s')) = 0, 0, 255))" % \
self.affect_field
legend_expressions['marker-min-range-%d' % i] = \
'%s' % (range_increment * i)
legend_expressions['marker-max-range-%d' % i] = \
'%s' % (range_increment * (i + 1))
legend_expressions['marker-label-%d' % i] = marker_label
legend_expressions['marker-size-%d' % i] = marker_size
legend_expressions['marker-color-%d' % i] = marker_color
legend_expressions['marker-border-%d' % i] = marker_border
for k, v in legend_expressions.iteritems():
str_template = str_template.replace('[%s]' % k, v)
with open(target_style_path, mode='w') as target_f:
target_f.write(str_template)
# Get requested style for impact layer of either kind
impact = self.impact_layer
style = impact.get_style_info()
style_type = impact.get_style_type()
# Determine styling for QGIS layer
qgis_impact_layer = impact.as_qgis_native()
if impact.is_vector:
LOGGER.debug('myEngineImpactLayer.is_vector')
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif impact.is_raster:
LOGGER.debug('myEngineImpactLayer.is_raster')
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
def show_results(self, qgis_impact_layer, engine_impact_layer):
"""Helper function for slot activated when the process is done.
.. note:: Adapted from the dock
:param qgis_impact_layer: A QGIS layer representing the impact.
:type qgis_impact_layer: QgsMapLayer, QgsVectorLayer, QgsRasterLayer
:param engine_impact_layer: A safe_layer representing the impact.
:type engine_impact_layer: ReadLayer
:returns: Provides a report for writing to the dock.
:rtype: str
"""
keywords = self.keyword_io.read_keywords(qgis_impact_layer)
# write postprocessing report to keyword
output = self.analysis.postprocessor_manager.get_output(
self.analysis.aggregator.aoi_mode)
keywords['postprocessing_report'] = output.to_html(
suppress_newlines=True)
self.keyword_io.write_keywords(qgis_impact_layer, keywords)
# Get tabular information from impact layer
report = m.Message()
report.add(LOGO_ELEMENT)
report.add(m.Heading(self.tr('Analysis Results'), **INFO_STYLE))
report.add(
self.keyword_io.read_keywords(qgis_impact_layer, 'impact_summary'))
# Get requested style for impact layer of either kind
style = engine_impact_layer.get_style_info()
style_type = engine_impact_layer.get_style_type()
# Determine styling for QGIS layer
if engine_impact_layer.is_vector:
LOGGER.debug('myEngineImpactLayer.is_vector')
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif engine_impact_layer.is_raster:
LOGGER.debug('myEngineImpactLayer.is_raster')
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
# qgis_impact_layer.setColorShadingAlgorithm(
# QgsRasterLayer.PseudoColorShader)
else:
setRasterStyle(qgis_impact_layer, style)
else:
message = self.tr(
'Impact layer %s was neither a raster or a vector layer') % (
qgis_impact_layer.source())
# noinspection PyExceptionInherit
raise ReadLayerError(message)
# Add layers to QGIS
layers_to_add = []
if self.show_intermediate_layers:
layers_to_add.append(self.analysis.aggregator.layer)
layers_to_add.append(qgis_impact_layer)
QgsMapLayerRegistry.instance().addMapLayers(layers_to_add)
# make sure it is active in the legend - needed since QGIS 2.4
self.iface.setActiveLayer(qgis_impact_layer)
# then zoom to it
if self.zoom_to_impact_flag:
self.iface.zoomToActiveLayer()
if self.hide_exposure_flag:
exposure_layer = self.parent.get_exposure_layer()
legend = self.iface.legendInterface()
legend.setLayerVisible(exposure_layer, False)
# append postprocessing report
report.add(output.to_html())
# Layer attribution comes last
report.add(impact_attribution(keywords).to_html(True))
# Return text to display in report panel
return report
def show_results(self):
"""Helper function for slot activated when the process is done.
.. versionchanged:: 3.4 - removed parameters.
.. note:: If you update this function, please report your change to
safe.gui.widgets.dock.show_results too.
:returns: Provides a report for writing to the dock.
:rtype: str
"""
qgis_exposure = self.impact_function.exposure.qgis_layer()
qgis_hazard = self.impact_function.hazard.qgis_layer()
qgis_aggregation = self.impact_function.aggregation.qgis_layer()
safe_impact_layer = self.impact_function.impact
qgis_impact_layer = read_impact_layer(safe_impact_layer)
keywords = self.keyword_io.read_keywords(qgis_impact_layer)
json_path = os.path.splitext(qgis_impact_layer.source())[0] + '.json'
# write postprocessing report to keyword
postprocessor_data = self.impact_function.postprocessor_manager.\
get_json_data(self.impact_function.aggregator.aoi_mode)
post_processing_report = m.Message()
if os.path.exists(json_path):
with open(json_path) as json_file:
impact_data = json.load(
json_file, object_pairs_hook=OrderedDict)
impact_data['post processing'] = postprocessor_data
with open(json_path, 'w') as json_file_2:
json.dump(impact_data, json_file_2, indent=2)
else:
post_processing_report = self.impact_function.\
postprocessor_manager.get_output(
self.impact_function.aggregator.aoi_mode)
keywords['postprocessing_report'] = post_processing_report.to_html(
suppress_newlines=True)
self.keyword_io.write_keywords(qgis_impact_layer, keywords)
# Get tabular information from impact layer
report = m.Message()
report.add(LOGO_ELEMENT)
report.add(m.Heading(self.tr('Analysis Results'), **INFO_STYLE))
# If JSON Impact Data Exist, use JSON
json_path = qgis_impact_layer.source()[:-3] + 'json'
LOGGER.debug('JSON Path %s' % json_path)
if os.path.exists(json_path):
impact_template = get_report_template(json_file=json_path)
impact_report = impact_template.generate_message_report()
report.add(impact_report)
else:
report.add(self.keyword_io.read_keywords(
qgis_impact_layer, 'impact_summary'))
# append postprocessing report
report.add(post_processing_report.to_html())
# Layer attribution comes last
report.add(impact_attribution(keywords).to_html(True))
# Get requested style for impact layer of either kind
style = safe_impact_layer.get_style_info()
style_type = safe_impact_layer.get_style_type()
# Determine styling for QGIS layer
if safe_impact_layer.is_vector:
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif safe_impact_layer.is_raster:
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
else:
message = self.tr(
'Impact layer %s was neither a raster or a vector layer') % (
qgis_impact_layer.source())
# noinspection PyExceptionInherit
raise ReadLayerError(message)
legend = self.iface.legendInterface()
# Insert the aggregation output above the input aggregation layer
if self.show_intermediate_layers:
add_above_layer(
self.impact_function.aggregator.layer,
qgis_aggregation)
legend.setLayerVisible(self.impact_function.aggregator.layer, True)
if self.hide_exposure_flag:
# Insert the impact always above the hazard
add_above_layer(
qgis_impact_layer,
qgis_hazard)
else:
# Insert the impact above the hazard and the exposure if
# we don't hide the exposure. See #2899
add_above_layer(
qgis_impact_layer,
qgis_exposure,
qgis_hazard)
# In QGIS 2.14.2 and GDAL 1.11.3, if the exposure is in 3857,
# the impact layer is in 54004, we need to change it. See issue #2790.
if qgis_exposure.crs().authid() == 'EPSG:3857':
if qgis_impact_layer.crs().authid() != 'EPSG:3857':
epsg_3857 = QgsCoordinateReferenceSystem(3857)
qgis_impact_layer.setCrs(epsg_3857)
# make sure it is active in the legend - needed since QGIS 2.4
self.iface.setActiveLayer(qgis_impact_layer)
# then zoom to it
if self.zoom_to_impact_flag:
self.iface.zoomToActiveLayer()
if self.hide_exposure_flag:
exposure_layer = self.get_exposure_layer()
legend.setLayerVisible(exposure_layer, False)
# Make the layer visible. Might be hidden by default. See #2925
legend.setLayerVisible(qgis_impact_layer, True)
# Return text to display in report panel
return report
class StylingTest(unittest.TestCase):
"""Tests for qgis styling related functions.
"""
def setUp(self):
os.environ['LANG'] = 'en'
def tearDown(self):
pass
def test_issue126(self):
"""Test that non integer transparency ranges fail gracefully.
.. seealso:: https://github.com/AIFDR/inasafe/issues/126
"""
# This dataset has all cells with value 1.3
data_path = test_data_path('other', 'issue126.tif')
layer, _ = load_layer(data_path)
# Note the float quantity values below
style_info = {
'style_classes': [
dict(colour='#38A800', quantity=1.1, transparency=100),
dict(colour='#38A800', quantity=1.4, transparency=0),
dict(colour='#79C900', quantity=10.1, transparency=0)
]
}
try:
setRasterStyle(layer, style_info)
except Exception, e:
message = (
'Setting style info with float based ranges should fail '
'gracefully.')
e.args = (e.args[0] + message, )
raise
# Now validate the transparency values were set to 255 because
# they are floats and we cant specify pixel ranges to floats
# Note we don't test on the exact interval because 464c6171dd55
value1 = layer.renderer().rasterTransparency().alphaValue(1.2)
value2 = layer.renderer().rasterTransparency().alphaValue(1.5)
message = ('Transparency should be ignored when style class '
'quantities are floats')
assert value1 == value2 == 255, message
# Now run the same test again for int intervals
style_info['style_classes'] = [
dict(colour='#38A800', quantity=2, transparency=100),
dict(colour='#38A800', quantity=4, transparency=0),
dict(colour='#79C900', quantity=10, transparency=0)
]
message = ('Setting style info with generate valid transparent '
'pixel entries.')
try:
setRasterStyle(layer, style_info)
except:
raise Exception(message)
# Now validate the transparency values were set to 255 because
# they are floats and we cant specify pixel ranges to floats
value1 = layer.renderer().rasterTransparency().alphaValue(1)
value2 = layer.renderer().rasterTransparency().alphaValue(3)
message1 = message + 'Expected 0 got %i' % value1
message2 = message + 'Expected 255 got %i' % value2
assert value1 == 0, message1
assert value2 == 255, message2
# Verify that setRasterStyle doesn't break when floats coincide with
# integers
# See https://github.com/AIFDR/inasafe/issues/126#issuecomment-5978416
style_info['style_classes'] = [
dict(colour='#38A800', quantity=2.0, transparency=100),
dict(colour='#38A800', quantity=4.0, transparency=0),
dict(colour='#79C900', quantity=10.0, transparency=0)
]
try:
setRasterStyle(layer, style_info)
except Exception, e: # pylint: disable=broad-except
message = (
'Broken: Setting style info with generate valid transparent '
'floating point pixel entries such as 2.0, 3.0')
e.args = (e.args[0] + message, )
raise
def show_results(self, qgis_impact_layer, engine_impact_layer):
"""Helper function for slot activated when the process is done.
.. note:: Adapted from the dock
:param qgis_impact_layer: A QGIS layer representing the impact.
:type qgis_impact_layer: QgsMapLayer, QgsVectorLayer, QgsRasterLayer
:param engine_impact_layer: A safe_layer representing the impact.
:type engine_impact_layer: ReadLayer
:returns: Provides a report for writing to the dock.
:rtype: str
"""
keywords = self.keyword_io.read_keywords(qgis_impact_layer)
# write postprocessing report to keyword
output = self.analysis.postprocessor_manager.get_output(
self.analysis.aggregator.aoi_mode)
keywords['postprocessing_report'] = output.to_html(
suppress_newlines=True)
self.keyword_io.write_keywords(qgis_impact_layer, keywords)
# Get tabular information from impact layer
report = m.Message()
report.add(LOGO_ELEMENT)
report.add(m.Heading(self.tr(
'Analysis Results'), **INFO_STYLE))
report.add(self.keyword_io.read_keywords(
qgis_impact_layer, 'impact_summary'))
# Get requested style for impact layer of either kind
style = engine_impact_layer.get_style_info()
style_type = engine_impact_layer.get_style_type()
# Determine styling for QGIS layer
if engine_impact_layer.is_vector:
LOGGER.debug('myEngineImpactLayer.is_vector')
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif engine_impact_layer.is_raster:
LOGGER.debug('myEngineImpactLayer.is_raster')
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
# qgis_impact_layer.setColorShadingAlgorithm(
# QgsRasterLayer.PseudoColorShader)
else:
setRasterStyle(qgis_impact_layer, style)
else:
message = self.tr(
'Impact layer %s was neither a raster or a vector layer') % (
qgis_impact_layer.source())
# noinspection PyExceptionInherit
raise ReadLayerError(message)
# Add layers to QGIS
layers_to_add = []
if self.show_intermediate_layers:
layers_to_add.append(self.analysis.aggregator.layer)
layers_to_add.append(qgis_impact_layer)
QgsMapLayerRegistry.instance().addMapLayers(layers_to_add)
# make sure it is active in the legend - needed since QGIS 2.4
self.iface.setActiveLayer(qgis_impact_layer)
# then zoom to it
if self.zoom_to_impact_flag:
self.iface.zoomToActiveLayer()
if self.hide_exposure_flag:
exposure_layer = self.analysis.exposure_layer
legend = self.iface.legendInterface()
legend.setLayerVisible(exposure_layer, False)
# append postprocessing report
report.add(output.to_html())
# Layer attribution comes last
report.add(impact_attribution(keywords).to_html(True))
# Return text to display in report panel
return report
def show_results(self):
"""Helper function for slot activated when the process is done.
.. versionchanged:: 3.4 - removed parameters.
.. note:: If you update this function, please report your change to
safe.gui.widgets.dock.show_results too.
:returns: Provides a report for writing to the dock.
:rtype: str
"""
qgis_exposure = self.impact_function.exposure.qgis_layer()
qgis_hazard = self.impact_function.hazard.qgis_layer()
qgis_aggregation = self.impact_function.aggregation.qgis_layer()
safe_impact_layer = self.impact_function.impact
qgis_impact_layer = read_impact_layer(safe_impact_layer)
keywords = self.keyword_io.read_keywords(qgis_impact_layer)
json_path = os.path.splitext(qgis_impact_layer.source())[0] + '.json'
# write postprocessing report to keyword
postprocessor_data = self.impact_function.postprocessor_manager.\
get_json_data(self.impact_function.aggregator.aoi_mode)
post_processing_report = m.Message()
if os.path.exists(json_path):
with open(json_path) as json_file:
impact_data = json.load(json_file,
object_pairs_hook=OrderedDict)
impact_data['post processing'] = postprocessor_data
write_json(impact_data, json_path)
else:
post_processing_report = self.impact_function.\
postprocessor_manager.get_output(
self.impact_function.aggregator.aoi_mode)
keywords['postprocessing_report'] = post_processing_report.to_html(
suppress_newlines=True)
self.keyword_io.write_keywords(qgis_impact_layer, keywords)
# Get tabular information from impact layer
report = m.Message()
report.add(LOGO_ELEMENT)
report.add(m.Heading(self.tr('Analysis Results'), **INFO_STYLE))
# If JSON Impact Data Exist, use JSON
json_path = qgis_impact_layer.source()[:-3] + 'json'
LOGGER.debug('JSON Path %s' % json_path)
if os.path.exists(json_path):
impact_template = get_report_template(json_file=json_path)
impact_report = impact_template.generate_message_report()
report.add(impact_report)
else:
report.add(
self.keyword_io.read_keywords(qgis_impact_layer,
'impact_summary'))
# append postprocessing report
report.add(post_processing_report.to_html())
# Layer attribution comes last
report.add(impact_attribution(keywords).to_html(True))
# Get requested style for impact layer of either kind
style = safe_impact_layer.get_style_info()
style_type = safe_impact_layer.get_style_type()
# Determine styling for QGIS layer
if safe_impact_layer.is_vector:
if not style:
# Set default style if possible
pass
elif style_type == 'categorizedSymbol':
LOGGER.debug('use categorized')
set_vector_categorized_style(qgis_impact_layer, style)
elif style_type == 'graduatedSymbol':
LOGGER.debug('use graduated')
set_vector_graduated_style(qgis_impact_layer, style)
elif safe_impact_layer.is_raster:
if not style:
qgis_impact_layer.setDrawingStyle("SingleBandPseudoColor")
else:
setRasterStyle(qgis_impact_layer, style)
else:
message = self.tr(
'Impact layer %s was neither a raster or a vector layer') % (
qgis_impact_layer.source())
# noinspection PyExceptionInherit
raise ReadLayerError(message)
legend = self.iface.legendInterface()
# Insert the aggregation output above the input aggregation layer
if self.show_intermediate_layers:
add_above_layer(self.impact_function.aggregator.layer,
qgis_aggregation)
legend.setLayerVisible(self.impact_function.aggregator.layer, True)
if self.hide_exposure_flag:
# Insert the impact always above the hazard
add_above_layer(qgis_impact_layer, qgis_hazard)
else:
# Insert the impact above the hazard and the exposure if
# we don't hide the exposure. See #2899
add_above_layer(qgis_impact_layer, qgis_exposure, qgis_hazard)
# In QGIS 2.14.2 and GDAL 1.11.3, if the exposure is in 3857,
# the impact layer is in 54004, we need to change it. See issue #2790.
if qgis_exposure.crs().authid() == 'EPSG:3857':
if qgis_impact_layer.crs().authid() != 'EPSG:3857':
epsg_3857 = QgsCoordinateReferenceSystem(3857)
qgis_impact_layer.setCrs(epsg_3857)
# make sure it is active in the legend - needed since QGIS 2.4
self.iface.setActiveLayer(qgis_impact_layer)
# then zoom to it
if self.zoom_to_impact_flag:
self.iface.zoomToActiveLayer()
if self.hide_exposure_flag:
exposure_layer = self.get_exposure_layer()
legend.setLayerVisible(exposure_layer, False)
# Make the layer visible. Might be hidden by default. See #2925
legend.setLayerVisible(qgis_impact_layer, True)
# Return text to display in report panel
return report
