In Inkscape, is there a way to apply an alpha mask or gradient over another colo

[floyd0117]

I have an object that I've applied a linear gradient to:



that I would like to fade to transparent at the edges:



But I do not know how to do this, given that inkscape doesn't let you apply two gradients to one object (I would like to apply a radial alpha gradient over the linear color gradient). I've accomplished the look here by just using a white elliptical gradient on a new shape, which surrounds the colored shape, plus a white background. But that's obviously not what I want; I want the shape to have a fully transparent background.

Is there a way to achieve this with some kind of Clip & Mask? Or something else?

[Lazur]

Hi.
 
Masking is supposed to do that task.
The masking object should have the same radial gradient but have different coloured steps -all should have 255 alpha, the middle should be white, the other step should be black.

masking