def draw_legend(self, top_offset):
"""Add a legend to the map using our custom legend renderer.
.. note:: getLegend generates a pixmap in 150dpi so if you set
the map to a higher dpi it will appear undersized.
:param top_offset: Vertical offset at which the logo should be drawn.
:type top_offset: int
"""
LOGGER.debug('InaSAFE Map drawLegend called')
mapLegendAttributes = self.map_legend_attributes()
legendNotes = mapLegendAttributes.get('legend_notes', None)
legendUnits = mapLegendAttributes.get('legend_units', None)
legendTitle = mapLegendAttributes.get('legend_title', None)
LOGGER.debug(mapLegendAttributes)
myLegend = MapLegend(self.layer, self.pageDpi, legendTitle,
legendNotes, legendUnits)
self.legend = myLegend.get_legend()
myPicture1 = QgsComposerPicture(self.composition)
myLegendFilePath = unique_filename(
prefix='legend', suffix='.png', dir='work')
self.legend.save(myLegendFilePath, 'PNG')
myPicture1.setPictureFile(myLegendFilePath)
myLegendHeight = points_to_mm(self.legend.height(), self.pageDpi)
myLegendWidth = points_to_mm(self.legend.width(), self.pageDpi)
myPicture1.setItemPosition(self.pageMargin,
top_offset,
myLegendWidth,
myLegendHeight)
myPicture1.setFrameEnabled(False)
self.composition.addItem(myPicture1)
os.remove(myLegendFilePath)
def draw_legend(self, top_offset):
"""Add a legend to the map using our custom legend renderer.
.. note:: getLegend generates a pixmap in 150dpi so if you set
the map to a higher dpi it will appear undersized.
:param top_offset: Vertical offset at which the logo should be drawn.
:type top_offset: int
"""
LOGGER.debug('InaSAFE Map drawLegend called')
legend_attributes = self.map_legend_attributes()
legend_notes = legend_attributes.get('legend_notes', None)
legend_units = legend_attributes.get('legend_units', None)
legend_title = legend_attributes.get('legend_title', None)
LOGGER.debug(legend_attributes)
legend = MapLegend(self.layer, self.page_dpi, legend_title,
legend_notes, legend_units)
self.legend = legend.get_legend()
picture1 = QgsComposerPicture(self.composition)
legend_file_path = unique_filename(prefix='legend',
suffix='.png',
dir='work')
self.legend.save(legend_file_path, 'PNG')
picture1.setPictureFile(legend_file_path)
legend_height = points_to_mm(self.legend.height(), self.page_dpi)
legend_width = points_to_mm(self.legend.width(), self.page_dpi)
picture1.setItemPosition(self.page_margin, top_offset, legend_width,
legend_height)
picture1.setFrameEnabled(False)
self.composition.addItem(picture1)
os.remove(legend_file_path)
def test_mmPointConversion(self):
"""Test that conversions between pixel and page dimensions work."""
myDpi = 300
myPixels = 300
myMM = 25.4 # 1 inch
myResult = points_to_mm(myPixels, myDpi)
myMessage = "Expected: %s\nGot: %s" % (myMM, myResult)
assert myResult == myMM, myMessage
myResult = mm_to_points(myMM, myDpi)
myMessage = "Expected: %s\nGot: %s" % (myPixels, myResult)
assert myResult == myPixels, myMessage
def test_mmPointConversion(self):
"""Test that conversions between pixel and page dimensions work."""
myDpi = 300
myPixels = 300
myMM = 25.4 # 1 inch
myResult = points_to_mm(myPixels, myDpi)
myMessage = "Expected: %s\nGot: %s" % (myMM, myResult)
assert myResult == myMM, myMessage
myResult = mm_to_points(myMM, myDpi)
myMessage = "Expected: %s\nGot: %s" % (myPixels, myResult)
assert myResult == myPixels, myMessage
def test_mm_to_points(self):
"""Test that conversions between pixel and page dimensions work."""
dpi = 300
myPixels = 300
mm = 25.4 # 1 inch
result = points_to_mm(myPixels, dpi)
message = "Expected: %s\nGot: %s" % (mm, result)
assert result == mm, message
result = mm_to_points(mm, dpi)
message = "Expected: %s\nGot: %s" % (myPixels, result)
assert result == myPixels, message
