Re: [Matplotlib-users] Line collections vs a collection of lines

Anthony M. Floyd wrote:
>> -----Original Message-----
>> From: Eric Firing [mailto:ef...@ha...] 
> 
> [snip]
> 
>> It probably comes down to program simplicity and readability, 
>> not speed, in your case.
>>
>> Eric
> 
> 
> Hi Eric,
> 
> Thanks for this.  That's essentially the decision I had reached, but I
> was also wondering if I'd missed something significant.  I think I will
> code it up as-is right now, and if the routine is unacceptably slow
> re-examine it with an eye to shifting over to using line-collections.
> 
> In the same vein, if I need to refactor, is there any benefit to
> treating single series as a collection with only one segment?  I would
> rather treat single series and multiple series in the same manner --
> either plotting single series and multiple single-series or plotting
> single-series collections and multiple-series collections.  That is, I'd
> rather not have to treat plotting a single series in one manner and
> multiple series in another.
A collection with only one member should work fine, although I don't 
know whether it has been explicitly tested.  So, I don't see any reason 
why you should have to treat a single series as a special case.

Are you aware that the plot method can plot the columns of 2-D arrays? 
Any kwargs apply to all the lines.  When plot does this, it makes a list 
of lines, not a line collection, so it is similar to looping over a set 
of single plot commands.  There is no particular speed advantage, but it 
is nice and concise, if it yields what you actually want.


Eric

> 
> Thanks,
> Anthony. 
> 
>