YMMV, but this should export a PNG of a zenmap topology from a Nmap XML file

cli_zenmap_png.py

#!/usr/bin/env python

import sys

if len(sys.argv) != 4:
    print """{0} - Output a PNG from Nmap XML
    Usage: {0} <scan.xml> <out.png> <width_in_pixels>""".format(sys.argv[0])
    sys.exit(1)

try:
    from zenmapGUI.TopologyPage import *
except ImportError:
    import sys
    sys.path.insert(0,"/edit/me/path/to/zenmap")
    from zenmapGUI.TopologyPage import *

t = TopologyPage(NetworkInventory(sys.argv[1]))
pix = int(sys.argv[3])
t.radialnet.set_allocation((0,0,pix,pix))
t.update_radialnet()
t.radialnet.save_drawing_to_file(sys.argv[2])

this is a pretty useful script that i used to look for everywhere.today,i tired to integrate it with my java application,but it doesn't works ok,even though upgrade my Ubuntu(12.04).

apt-get update
apt-get upgrade
.....

root@bt:/tmp#whereis zenmap
zenmap: /usr/bin/zenmap /usr/bin/X11/zenmap /usr/local/bin/zenmap /usr/share/zenmap /usr/share/man/man1/zenmap.1.gz

root@bt:/tmp# python cli_zenmap_png.py /tmp/1.xml /tmp/2.png 256
/usr/lib/pymodules/python2.6/gtk-2.0/gtk/init.py:57: GtkWarning: could not open display
warnings.warn(str(e), _gtk.Warning)
Traceback (most recent call last):
File "cli_zenmap_png.py", line 17, in
t = TopologyPage(NetworkInventory(sys.argv[1]))
File "/usr/local/lib/python2.6/dist-packages/zenmapCore/NetworkInventory.py", line 114, in init
self.open_from_file(filename)
File "/usr/local/lib/python2.6/dist-packages/zenmapCore/NetworkInventory.py", line 284, in open_from_file
parsed = NmapParser(path)
TypeError: nmap_parser_sax() takes no arguments (1 given)
root@bt:/tmp#

i'm a java programmer,not python,forgive my poor python skills

how can i slove this problem?
thank you.

Receiving the same error. Any update on it?

It worked for me after replacing the source code of Networkinventry.py of zenmapcore from this link.