Bubble Outlines and Extents

[raswaim]

Two questions on bubble plot formats:

1) As far as I can tell, bubble plot symbols are always outlined in black - is there a way to turn this off? (actually, now that I think of it that question may go for 3D scatter plots as well)

2) Is there a way to manually set the numeric range that the bubble size/color will scale over, similar to the options for scatter plot color ranges? I gather that the range is taken from the extents of the source curve (which makes sense most of the time), but I've got some curves where I'd like to high-lite some regions.

[DPlotAdmin]

1) As far as I can tell, bubble plot symbols are always outlined in black - is there a way to turn this off? (actually, now that I think of it that question may go for 3D scatter plots as well)

No, in both cases. That's an oversight, will change it in the next release.

2) Is there a way to manually set the numeric range that the bubble size/color will scale over, similar to the options for scatter plot color ranges? I gather that the range is taken from the extents of the source curve (which makes sense most of the time), but I've got some curves where I'd like to high-lite some regions.

There's no way to do that now. You're correct about how the scaling currently works. That's actually how I started to do it (allowing you to specify the low and high values), but got my head twisted around about what should be done with amplitudes outside the specified range, e.g. a negative bubble size doesn't make sense. I suppose the answer should be that the specified scale would be the limits: amplitudes smaller than the low end will be drawn with the low size and color, amplitudes greater than the high end will be drawn with the high size and color.

I'll take a look at doing this for the next release. Same thing applies to vector plots.

In the meantime what you could do to achieve the same effect is use Edit>Operate on Y to force the bubble amplitudes to the limits you want:
Y=max(A,min(B,Y))
where A is your desired lower limit, B is the upper limit.

[raswaim]

Thanks - I've got a number of high density plots where you end up seeing more black than any colors. "Clipping" using the min/max would probably work for a lot of the cases, but if you get around to putting in controls it would make interactively exploring datasets a little easier. As far as handling of the out of limits items, would it make sense to have a color/size select box for each of over and under limit cases? Lacking that, a choiece of either mapping them to the max and min colors, or mapping them to null (don't plot) might make sense.