On Wed, Nov 14, 2012 at 10:18 AM, inshu chauhan <insidesh...@gmail.com>wrote:
> > for this code m getting this error : > > CODE : > def ComputeClasses(data): > radius = .5 > points = [] > for cy in xrange(0, data.height): > for cx in xrange(0, data.width): > if data[cy,cx] != (0.0,0.0,0.0): > This code is only run if the test above is true > centre = data[cy, cx] > points.append(centre) > > > change = True > > while change: > > for ring_number in xrange(1, 1000): > change = False > new_indices = GenerateRing(cx, cy, ring_number) > > > for idx in new_indices: > point = data[idx[0], idx[1]] > > if point == (0.0, 0.0, 0.0 ): > continue > else: > dist = distance(centre, point) > centre is only set if the test above is true. In your run, it apparently wasn't > if dist < radius : > print point > points.append(point) > change = True > print change > > > break > > > ERROR : > Traceback (most recent call last): > File "Z:\modules\classification2.py", line 74, in <module> > ComputeClasses(data) > File "Z:\modules\classification2.py", line 56, in ComputeClasses > dist = distance(centre, point) > UnboundLocalError: local variable 'centre' referenced before assignment > > And i am unable to understand .. WHY ? > > > > -- > http://mail.python.org/mailman/listinfo/python-list > > -- Joel Goldstick
-- http://mail.python.org/mailman/listinfo/python-list
