BatchModeWithUI

Introduction

You can run DeVIDE in batch mode also with a graphical user interface, by using a CodeRunner in a live session, for example to apply the same network to hundreds of different datasets.

This is different from the normal BatchMode, in which no graphical user interface is available.

Details

Start up DeVIDE normally, and load or create the network that you want to execute in batch mode. Then, create a CodeRunner and adapt the following example in the Scratch tab (very very important):

def main():
    print "CodeRunner batch mode starting"

    # we're going to need the module_manager quite often for changing
    # module configuration and for running the network.
    mm = obj.module_manager

    # parameter is the module name that you assigned
    # what's returned is module_instance
    thresh_mod = mm.get_instance('threshold')
    # then get the config from the module
    thresh_conf = thresh_mod.get_config()
    # change the parameters you need
    thresh_conf.lowerThreshold = 0.0
    thresh_conf.upperThreshold = 100.0
    # set module config again
    thresh_mod.set_config(thresh_conf)

    # get, change and set writer config to change filename
    writer_mod = mm.get_instance('vtp_wrt')
    writer_conf = writer_mod.get_config()
    # this will write result.vtp to your current working directory
    # change this to the full path if you want it somewhere else
    writer_conf.filename = 'result.vtp'
    writer_mod.set_config(writer_conf)

    # run the network
    mm.execute_network()

    # I could put the above code in a loop, to use the same network
    # to process multiple datasets.
    
    print "CodeRunner batch mode example done."

main()

In the scratch tab, select File | Run current edit from the menubar to start your batch processing script.

You can also download a fully working DVN example, including the CodeRunner above, by clicking here: http://code.google.com/p/devide/source/browse/trunk/devide/examples/BatchModeWithUI-ex.dvn