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Re: Creating a Legend with ListPlot using PlotMarkers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84841] Re: Creating a Legend with ListPlot using PlotMarkers
  • From: dh <dh at metrohm.ch>
  • Date: Wed, 16 Jan 2008 22:57:35 -0500 (EST)
  • References: <fmhqmn$bou$1@smc.vnet.net>


Hi Andy,

seems to be another bug of version 6.

Here is an working example using ShowLegend:

data=Table[RandomReal[]+8,{2},{6}];

plmarkers={{"\[FilledSquare]",Medium},{"\[FilledCircle]",Medium}};

plot=ListPlot[data,PlotMarkers->plmarkers,PlotStyle->Black,Axes->False,Frame->True];

ShowLegend[plot,{{{Graphics@Text@plmarkers[[1,1]],"DEEP2"},{Graphics@Text@plmarkers[[2,1]],"CFRS"}},LegendShadow->{0,0},LegendPosition->{-.8,.2},LegendSize->{0.4,0.3}}]



hope this helps, Daniel



Uayeb wrote:

> I'm trying to create a legend for a list plot of points using the

> PlotMarkers generated with the option PlotMarkers->Automatic. Seems

> the only way to do this is by creating my own set of plot markers

> which I can hand both to the ListPlot[data,PlotMarkers->myMarkers] and

> to the Legend[Table[{myMarkers[[i]],"data "<>ToString[i]},

> {i,Length[myMarkers]}]] (or similar) call. Seems that the

> Automatically generated markers should be around somewhere, similar to

> how the colors used to generate a line plot are in ColorData[1,i].

> 

> Also, drawing a box around the legend via LegendShadow->{0,0} has

> unexpected results:

> 

> data = Table[RandomReal[] + 8, {2}, {6}]

> plot = ListPlot[data, PlotMarkers -> Automatic, PlotStyle -> Black,

>   Axes -> False, Frame -> True]

> Show[plot,

>  Graphics[Legend[{{Graphics[{Inset[

>         Style["\[FilledSquare]", FontSize -> 8.96], {0, 0}]}],

>      "DEEP2"}, {Graphics[{Inset[

>         Style["\[FilledCircle]", FontSize -> 8.96], {0, 0}]}],

>      "CFRS"}}, LegendShadow -> {0, 0}, LegendPosition -> {1, 8.7}]]]

> 

> This code produces a Boxed Legend, but the box expands to touch the

> top of the plot frame. Looking at the InputForm of the output gives no

> indication that this shouldn't draw correctly.

> 

> Cheers,

> Andy

> 




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