def extent_string_to_array(extent_text):
"""Convert an extent string to an array.
.. versionadded: 2.2.0
:param extent_text: String representing an extent e.g.
109.829170982, -8.13333290561, 111.005344795, -7.49226294379
:type extent_text: str
:returns: A list of floats, or None
:rtype: list, None
"""
coordinates = extent_text.replace(' ', '').split(',')
count = len(coordinates)
if count != 4:
message = (
'Extent need exactly 4 value but got %s instead' % count)
LOGGER.error(message)
return None
# parse the value to float type
try:
coordinates = [float(i) for i in coordinates]
except ValueError as e:
message = str(e)
LOGGER.error(message)
return None
return coordinates
def extent_string_to_array(extent_text):
"""Convert an extent string to an array.
.. versionadded: 2.2.0
:param extent_text: String representing an extent e.g.
109.829170982, -8.13333290561, 111.005344795, -7.49226294379
:type extent_text: str
:returns: A list of floats, or None
:rtype: list, None
"""
coordinates = extent_text.replace(' ', '').split(',')
count = len(coordinates)
if count != 4:
message = ('Extent need exactly 4 value but got %s instead' % count)
LOGGER.error(message)
return None
# parse the value to float type
try:
coordinates = [float(i) for i in coordinates]
except ValueError as e:
message = e.message
LOGGER.error(message)
return None
return coordinates
def setup_printer(
filename,
resolution=300,
page_height=297,
page_width=210,
page_margin=None):
"""Create a QPrinter instance defaulted to print to an A4 portrait pdf.
:param filename: Filename for the pdf print device.
:type filename: str
:param resolution: Resolution (in dpi) for the output.
:type resolution: int
:param page_height: Height of the page in mm.
:type page_height: int
:param page_width: Width of the page in mm.
:type page_width: int
:param page_margin: Page margin in mm in form [left, top, right, bottom].
:type page_margin: list
"""
#
# Create a printer device (we are 'printing' to a pdf
#
LOGGER.debug('InaSAFE Map setupPrinter called')
printer = QtGui.QPrinter()
printer.setOutputFormat(QtGui.QPrinter.PdfFormat)
printer.setOutputFileName(filename)
printer.setPaperSize(
QtCore.QSizeF(page_width, page_height),
QtGui.QPrinter.Millimeter)
printer.setColorMode(QtGui.QPrinter.Color)
printer.setResolution(resolution)
if page_margin is None:
page_margin = [10, 10, 10, 10]
printer.setPageMargins(
page_margin[0],
page_margin[1],
page_margin[2],
page_margin[3],
QtGui.QPrinter.Millimeter)
return printer
