Number: 1528
Title: Turn off tool tips
Submitter: Ryan Schmidt
Date: Tue Nov 25 10:58:36 2008
Subsys: Output generation
Version: 2.21
System: *-*-
Severity: minor
t seems like there's no way to turn off tooltips. Is that true or am I missing something?

The documentation says the default value for "tooltip" is the empty string [1], and that "If unset, Graphviz will use the object's label if defined" [2].

If I want no tooltips, it seems natural to say

node [tooltip=""]

but that has no effect because that's the default. If I look at output from -Tcanon I see Graphviz even strips it out.

It would make more sense to me to define the default for "tooltip" as "\L" [3]. Remove the "If unset..." sentence from the tooltip definition. And thus let me set "tooltip" to the empty string to indicate that I want no tooltips.
[erg] This is somewhat related to problem of node labels, and that the graph library treats an empty string as undefined.
Owner: *
Status: *