Transparent lines in GD::Graph::mixed ?

[Stan]

How do I make one of the lines on a mixed graph transparent (invisible)?
I've looked at the perldoc of GD and it mentions gdTransparent as
a style, but how would I set the style on just one of the lines
in the graph?

Stan

[Martien Verbruggen]

On 8 Jan 2004 11:37:21 -0800,
Stan <swsmiley@genetics.utah.edu> wrote:

> How do I make one of the lines on a mixed graph transparent (invisible)?
> I've looked at the perldoc of GD and it mentions gdTransparent as
> a style, but how would I set the style on just one of the lines
> in the graph?

You can't. The only transparency that is supported by GD::Graph is
transparency of the background. If you explain why you think this
could be a useful addition to GD::Graph, I might put it on the Todo
list.

Martien
--
|
Martien Verbruggen | Unix is the answer, but only if you phrase
Trading Post Australia | the question very carefully
|

[Stan]

Martien Verbruggen <mgjv@tradingpost.com.au> wrote in message news:<slrnbvsfam.aqq.mgjv@verbruggen.comdyn.com.au >...

> On 8 Jan 2004 11:37:21 -0800,
> Stan <swsmiley@genetics.utah.edu> wrote:

> > How do I make one of the lines on a mixed graph transparent (invisible)?
> > I've looked at the perldoc of GD and it mentions gdTransparent as
> > a style, but how would I set the style on just one of the lines
> > in the graph?

>
> You can't. The only transparency that is supported by GD::Graph is
> transparency of the background. If you explain why you think this
> could be a useful addition to GD::Graph, I might put it on the Todo
> list.
>
> Martien

I am attempting to emulate error bars as in sample63.pl, but with two lines
instead of one. I use an extra line to correct the cumulative value prior
to the second line's error bars. The values are usually very negative for the
correction line so normally it doesn't show up, but for smaller values it could
be visible.

Thanks.

Stan