ZeroDivisionError: float division

[atarkowska]

Traceback (most recent call last):

 File "/home/omero/omero_dist/lib/python/django/core/handlers/base.py", line 86, in get_response
   response = callback(request, *callback_args, **callback_kwargs)

 File "/home/omero/omero_dist/lib/python/omeroweb/webclient/views.py", line 177, in wrapped
   return f(request, *args, **kwargs)

 File "/home/omero/omero_dist/lib/python/omeroweb/webclient/views.py", line 2610, in render_row_plot
   return webgateway_views.render_row_plot(request, iid=iid, z=z, t=t, y=y, w=w, _conn=conn, **kwargs)

 File "/home/omero/omero_dist/lib/python/omero/gateway/__init__.py", line 67, in wrapped
   rv = func(*args, **kwargs)

 File "/home/omero/omero_dist/lib/python/omeroweb/webgateway/views.py", line 422, in wrap
   return f(request, *args, **kwargs)

 File "/home/omero/omero_dist/lib/python/omeroweb/webgateway/views.py", line 469, in render_row_plot
   gif_data = img.renderRowLinePlotGif(int(z),int(t),int(y), int(w))

 File "/home/omero/omero_dist/lib/python/omero/gateway/__init__.py", line 1926, in wrapped
   return func(self, *args, **kwargs)

 File "/home/omero/omero_dist/lib/python/omero/gateway/__init__.py", line 2407, in renderRowLinePlotGif
   rows = self.getRow(z,t,y)

 File "/home/omero/omero_dist/lib/python/omero/gateway/__init__.py", line 2183, in getRow
   return self.getPixelLine(z,t,y,'h',channels,range)

 File "/home/omero/omero_dist/lib/python/omero/gateway/__init__.py", line 2173, in getPixelLine
   normalize = 1.0/chw[c][1]*(range-1)

ZeroDivisionError: float division


<ModPythonRequest
path:/webclient/render_row_plot/19783/0/0/1014/,
GET:<QueryDict: {u'zm': [u'31'], u'c': [u'1|0:0$FF0000,2|0:0$0000FF,3|0:255$00FF00'], u'm': [u'c'], u'q': [u'0.9'], u'p': [u'normal'], u'y': [u'0'], u'x': [u'0']}>,
POST:<QueryDict: {}>,
COOKIES:{'sessionid': '6f4e843473b175fc01e00b6b050c65f7'},
META:{'AUTH_TYPE': None,
'CONTENT_LENGTH': 0L,
'CONTENT_TYPE': None,
'GATEWAY_INTERFACE': 'CGI/1.1',
'HTTP_ACCEPT': 'image/png,image/*;q=0.8,*/*;q=0.5',
'HTTP_ACCEPT_CHARSET': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'HTTP_ACCEPT_ENCODING': 'gzip,deflate',
'HTTP_ACCEPT_LANGUAGE': 'en,pl;q=0.7,en-us;q=0.3',
'HTTP_CONNECTION': 'keep-alive',
'HTTP_COOKIE': 'sessionid=6f4e843473b175fc01e00b6b050c65f7',
'HTTP_HOST': '141.52.175.99',
'HTTP_KEEP_ALIVE': '300',
'HTTP_REFERER': 'http://141.52.175.99/webclient/img_detail/19783/',
'HTTP_USER_AGENT': 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7',
'PATH_INFO': u'/webclient/render_row_plot/19783/0/0/1014/',
'PATH_TRANSLATED': None,
'QUERY_STRING': 'c=1|0:0$FF0000,2|0:0$0000FF,3|0:255$00FF00&m=c&p=normal&q=0.9&zm=31&x=0&y=0',
'REMOTE_ADDR': '134.36.64.132',
'REMOTE_HOST': None,
'REMOTE_IDENT': None,
'REMOTE_USER': None,
'REQUEST_METHOD': 'GET',
'SCRIPT_NAME': '',
'SERVER_NAME': '127.0.0.1',
'SERVER_PORT': 80,
'SERVER_PROTOCOL': 'HTTP/1.1',
'SERVER_SOFTWARE': 'mod_python'}>