RE: [Matplotlib-users] large data sets and performance

[Perry G. <pe...@st...>]

John Hunter writes:
> 
> could be a big win.  LOD is "Level of Detail" and if true subsamples
> the data according to the pixel width of the output, as you described.
> Whether this is appropriate or not depends on the data set of course,
> whether it is continuous, and so on.  Can you describe your dataset in
> more detail, because I would like to add whatever optimizations are
> appropriate -- if others can pipe in here too that would help.
> 
>
What I was alluding to was that if a backend primitive was added that
allowed plotting a symbol (patch?) or point for an array of points.
The base implementation would just do a python loop over the single
point case so there is no requirement for a backend to overload this
call. But it could do so if it wanted to loop over all points in C. 
How flexible to make this is open to discussion (e.g., allowing
x, and y scaling factors, as arrays, for the symbol to be plotted, and
other attributes that may vary with point such as color)

Perry