algorithm2e with ruled but with customized rule thickness

Question

I would like to present an algorithm in my work and I used the package algorithm2e. I wonder if there is a way to control hrule thickness with ruled option, so one can use thicker line pre-caption or post of it.

Any help is much appreciated.

Answer 1

It's undocumented, but doable: these should be equivalent to the default setting

\setlength{\algoheightrule}{0.8pt} % thickness of the rules above and below
\setlength{\algotitleheightrule}{0.8pt} % thicknes of the rule below the title

Change as you wish.

From algorithm2e.sty:

%   - november 17 2009  - revision 4.00 -
[...]
% * ADD/FIX: rules of ruled, algoruled, tworuled styles used rules of different sizes! This
%            is now fixed. Moreover size of the rules is now controlled by a length and so
%            can be customized by the user.
%            \algoheightrule is the height of the rules and can be changed via \setlength
%            \algoheightruledefault is the default height of he rules (0.8pt)
%            \algotitleheightrule is the height of the rule that comes just after the
%            caption in ruled and algoruled style; it can be changed via \setlength
%            \algotitleheightruledefault is the default height of this rules (0.8pt)