Comments on: Double Legend in a Single Chart

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Mon, 02 Mar 2009 16:16:33 +0000

[...] How can you add 2 legends in a chart [...]

By: Jon Peltier

Jon Peltier — Sat, 28 Feb 2009 02:09:46 +0000

Bob -

I was planning what to write about next week. That would make a good post. It’s a 2×2 panel chart, with some added features (different axis scales, etc.).

First I’ll write about the overlapping columns, because that’s an easier topic.

By: Bob

Bob — Fri, 27 Feb 2009 22:42:18 +0000

Hi Jon,

I’ve been watching this post anxiously waiting for you to show how you built this thing.
I understood how you finessed the legend, but am at a loss to start laying out the data to get the all the bars to line up.

Will you be posting that?

Cheers,

Bob

By: Jon Peltier

Jon Peltier — Wed, 25 Feb 2009 17:04:21 +0000

Andy -

The only line produced via dummy series is the central vertical line. The box is the plot area, the horizontal dividing line is one of the category axes. The four axis scales are also dummy series, but just for the “+” markers and data labels.

But it all could be drawn with dummy series for all of the boxes and lines. Then the dummy axis legend could go anywhere.

By: Andy Pope

Andy Pope — Wed, 25 Feb 2009 16:30:41 +0000

I assume all the plotarea and axis border lines are currently being created by a dummy series, in which case you could use negative Y values for the positioning of the dummy legend markers. At the same time reducing the vertical white space between panels.

By: Jon Peltier

Jon Peltier — Wed, 25 Feb 2009 16:16:49 +0000

Andy - Good point, but then it can't be done using a dummy series. We could switch the top and bottom panels of the chart, and leave the legend at the top of the sub-subdivided panels.