Re: Scatter and Scatter3 functions

[David Bateman]

Michael Goffioul wrote:
> On 11/20/07, David Bateman <address@hidden> wrote:
>   
>> The attached patch adds the scatter and scatter3 functions. These use
>> patch objects with markers to define the points. This allows the
>> colormap to determine the colors of the point whereas if a line object
>> was used its not clear that this could be done. This of course means
>> that each point has a separate plot command to gnuplot and so with a
>> large number of points this is a bit slow to display initially.
>>     
>
> FYI, Matlab also uses patch objects at low-level to represent scattergroup
> objects.
>   
Yeah, I guess.. But it seems to me to be an abuse of the patch objects,
since there is no face and no edge, and only a single marker per patch..
It probably would have be better to use a line object for this with a
palette for gnuplot, but that only works in 3D and if the markers are
the same size.

D.

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David Bateman                                address@hidden
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