On 9/8/10 9:40 PM, Innigo wrote:
Thanks, this is exactly what I want. I do want to be modular. However,
my graphics object
contains 0 graphics primitives
g = Graphics()
def f1(g)
g += polygon(...)
def f2(g)
g += ...
show(g)
Can I not pass g as a parameter and have it returned to outer scope?
One thing to realize about the above code is that you just define the
functions f1 and f2, but never call them. So the functions never
actually do anything. Another thing is that when you define the
function as "def f1(g)", the g inside the function definition refers to
the g passed into the function, not the global variable g.
Usually, it is better style for function to not modify their inputs.
I'd suggest doing something like:
def my_line():
p=Graphics()
p+=line([(0,0),(1,1)])
p+=line([(1,0),(0,1)]) #another line
return p
def my_plot():
return plot(x^2,(x,0,1))
picture=Graphics()
picture+=draw_line()
picture+=my_plot()
show(picture)
(each function creates a graphics object, and I just call the functions
and add the results to create a new figure).
Jason
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