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Re: Legend Package

  • To: mathgroup at
  • Subject: [mg22338] Re: [mg22227] Legend Package
  • From: Tom Burton <tburton at>
  • Date: Fri, 25 Feb 2000 21:13:28 -0500 (EST)
  • Organization: Brahea, Inc.
  • References: <> <88lcac$> <893h34$r2i$>
  • Sender: owner-wri-mathgroup at

Here are two work-arounds that reduce the magnitude of this

(1) Include the Text function in the Epilog of Plot[Sin...].
(2) Instead of using PlotLegend, wrap ShowLegend around the combined
plot of curve and text.

On 24 Feb 2000 15:00:52 GMT, "F. Mittermayr" <mitterma at>

>Using the Legend Package has one big disadvantage because it "destroys the
>coordinates" in combination with using the Text[...] option.
>p=Plot[{Sin[x]}, {x,-3,3}, DisplayFunction->Identity];
>Show[{p,Graphics[Text["Sin", {1,1}]]}, DisplayFunction->$DisplayFunction];
>plots the curve and puts the text "Sin" to the coordinates (1,1) but
>p=Plot[{Sin[x]}, {x,-3,3}, DisplayFunction->Identity,
>Show[{p,Graphics[Text["Sin", {1,1}]]}, DisplayFunction->$DisplayFunction];
>plots the curve and puts the text anywhere else.
>so long  F. Mittermayr
>Tim Stiles <tastiles at> wrote in message
>news:88lcac$bur at
>> David Park wrote:
>> > MathGroup,
>> >
>> > Does anyone know how the legends are specified in the ShowLegend
>statement? The
>> > documentation show an example for the second type of legend, but not for
>the first
>> > type of legend. I cannot understand what to put in for box_1 in their
>> > format. Nothing I try is reflected on the plot. Does anyone have an
>example of this
>> > form of the statement.
>> >
>> > I am even more interested in using the Legend and ShadowBox primitives.
>I know how to
>> > use the ShadowBox primitive and can put text and lines in it "by hand".
>But I do not
>> > know how to use the Legend primitive, partly because I do not know what
>to put in for
>> > the box_i statements, and also because I don't know how to combine it
>with the
>> > ShadowBox primitive. Does anyone have any examples of this?
>> >
>> > Thanks.
>> >
>> > David Park
>> > djmp at
>> >
>> Wolfram's Technical support web pages actually have two good web pages
>dealing with
>> ShowLegend. The first is a mini-tutorial in using ShowLegend, it is
>available at
>> the second offers some more examples of ShowLegend and goes into detail
>about using the
>> Legend command.
>> Its URL is
>> The basic idea of ShowLegend is that you pass it two arguments. The first
>is a graphics
>> object like Show or LogPlot, the second is a list of parameters that get
>passed to the
>> Legend command. Legend takes one argument, a list of identifiers to use
>for each key in
>> the legend. Each element of this list consists of two parts. The first is
>either a
>> Graphics command with appropriate directives (RGBColor, AbsoluteDashing,
>etc.) and
>> primitives (Line, Point, etc.) or simply a directive with the implied
>directive being
>> Rectangle, producing a box of certain color or shade. The second part of
>each element of
>> the list is the label to be used for each key. After this list of lists of
>graphics to
>> be used to make the key, you can add options that get passed to Legend,
>such as
>> LegendSize and LegendPosition. A good example is shown on the first of the
>> pages
>> You can use the Legend command to create ShadowBoxes with graphics and
>text in them. The
>> format of arguments of Legend would be the same as outlined above, to
>display it, you
>> would use Show[Graphics[Legend[...]]]. Several examples of using Legend
>this way are
>> displayed in the second of the above-referenced web pages. Legend by
>itself makes a
>> ShadowBox, so you would not need to combine Legend and ShadowBox.
>> Hope this helps.
>> Tim Stiles
>> tastiles at

Tom Burton

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