gsdview.gdalbackend.gdalptc

Custom ptc components for GDAL.

Functions

custom_extraenv(settings)	Return cutom extra env according to GDAL user settings.
update_descriptor_from_settings(descriptor, ...)

Classes

GdalAddOverviewDescriptor([cwd, env, ...])	Descriptor of gdaladdo tool
GdalOutputHandler([loggername, statusbar, ...])	Handler for the GDAL simple progress report to terminal.
Qt4OutputHandler(loggername[, statusbar, ...])	Qt4 Output Handler

class gsdview.gdalbackend.gdalptc.GdalAddOverviewDescriptor(cwd=None, env=None, isextraenv=True, stdout_handler=None, stderr_handler=None)

Descriptor of gdaladdo tool

Create an overview of an image.

Attributes :

• executable: full path of the tool executableor just the tool program name if it is in the system search path
• cwd: program working directory
• env: environment
• stdout_handler: the OutputHandler for the stdout of the tool
• stderr_handler: the OutputHandler for the stderr of the tool

cmdline(*args)

Create the command to generate the overview.

resampling_algorithm

resampling algorithm for gdaladdo

reset_defaults()

class gsdview.gdalbackend.gdalptc.GdalOutputHandler(loggername='externaltool', statusbar=None, progressbar=None, blinker=None)

Handler for the GDAL simple progress report to terminal.

This progress reporter prints simple progress report to the terminal window. The progress report generally looks something like this:

“0...10...20...30...40...50...60...70...80...90...100 - done.”

Every 2.5% of progress another number or period is emitted.

handle_progress(data)

reset()

class gsdview.gdalbackend.gdalptc.PyGdalOutputHandler(loggername='externaltool', statusbar=None, progressbar=None, blinker=None)

gsdview.gdalbackend.gdalptc.custom_extraenv(settings)

Return cutom extra env according to GDAL user settings.

gsdview.gdalbackend.gdalptc.update_descriptor_from_settings(descriptor, settings)