Re: There should be an option to set the display size of an image to zero

[Eli Zaretskii]

> From: Marc Feeley <address@hidden>
> Date: Tue, 17 Sep 2013 10:43:47 -0400
> Cc: address@hidden,
>  address@hidden
> 
> Here's a screenshot showing the type of annotation I'm trying to implement:
> 
> http://planet.racket-lang.org/package-source/mflatt/scribble-paper.plt/2/1/planet-docs/scribble/collatz.png

I don't think this is possible in Emacs at this time.

But since you want the arrow to appear only when the mouse pointer
hovers above one of the places that are involved in a relationship,
how about highlighting those places in some way, when mouse is over
one of them, without actually drawing an arrow?

> But can the image in a margin overflow the margin to overlay the main text?  
> I assume not.

No, it cannot.  It will be displayed entirely in the margin.