Re: fast scatter plots - advice sought

[David Bateman]

Jaroslav Hajek wrote:
> This is similar. The documentation  doesn't seem to say anything about
> patch objects. To me, it seems logical to use the simplest primitive
> capable of plotting a set of points, which I think is a line. Are
> patches somehow faster or otherwise superior to lines? If yes, why?
>
>   
Because the line object don't support colormaps

scatter(x,y,s,c); colormap hot

for example and that is documented... See the description of the value 
of "c" in

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/scatter.html

that clearly states "When C is a vector the same length as X and Y, the 
values in C are linearly mapped to the colors in the current colormap"

No you can't pick the colors from the current colormap (not that you've 
done that yet) as the colormap can be changed after the call to scatter



D.



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