Peter Praamstra P.PRAAMSTRA at BHAM.AC.UK
Tue Apr 15 14:28:56 CEST 2008

Dear Jan-Mathijs,
Many thanks for your advice!

Just replacing sliceinterp with sourceplot - and using default settings for
opacity mapping - already did the trick.

Best wishes,


On 15 Apr 2008 at 12:29, jan-mathijs schoffelen wrote:

> Dear Peter,
> My suggestion would be to use sourceplot, instead of sliceinterp.
> Sourceplot is a more modern
> version of sliceinterp and incorporates most (if not all) of
> sliceinterp's functionality (and more!).
> The function is quite well documented, but to give you some
> handles:
> cfg.method = 'slices';
> cfg.nslices = a number but by default something like 20
> cfg.funparameter = 'pow';
> cfg.funcolorlim = [-15 15];
> Additionally, you can specify a maskparameter, which will be used
> for opacity-mapping. This could
> be cfg.maskparameter = 'pow'.
> There are several options for the opacity you can play with, but
> when not specifying anything, I
> believe you are already pretty much in the right direction.
> Alternatively, you can create a new field in your data-structure, in
> which you control the opacity
> more explicitly, e.g.
> data.mask = abs(data.pow) >10;
> Note that when you want to plot the output of a statistics-function,
> there's usually a .mask-field
> associated with the data.
> I hope this helps,
> Yours,
> Jan-Mathijs

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