Re: color-bar legend for the LisContourPlot
- To: mathgroup at smc.vnet.net
- Subject: [mg123642] Re: color-bar legend for the LisContourPlot
- From: Dan <dflatin at rcn.com>
- Date: Wed, 14 Dec 2011 06:00:36 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jbspea$3mj$1@smc.vnet.net>
On Dec 9, 5:55 am, "Karamiarokhloo, M.P. (Mehdipasha)" <M.P.Karamiarokh... at uu.nl> wrote: > Dear All, > > I am using Mathematica 7 and have difficulties to plot the ListContourPlot > of ocean data with a neat color bar (legend). > For example if I have a temperature field range between {-2,30}, and I use > the ColorFunction Rainbow, > I cannot include a color-bar which has the same number of contours as the contourplot, and it does not show the related numbers for each color-shade. > The ShowLegend function of Mathematica is very primitive. > Has any body any suggestion? > > Thanks you. > P.Karami I like using Grid for this, and in general for constructing compound plots. For the legend, I use a trick I learned from David Park in this forum. Just make another contour plot. This gives you great control over choice and labeling of the contours. Here is a simple example where I have identified the various layout elements explicitly. With[{ zmin=-2,zmax=2,delz=0.5,datasize={10,10}, plotW=300,plotH=300,legendW, ticklblW=30,ticklblH,grout=2, colorset="ArmyColors"}, Module[{data,contours}, contours=Range[zmin,zmax,delz]; data=RandomReal[{zmin,zmax},datasize]; Grid[{{ ListContourPlot[data,InterpolationOrder->3,Contours->contours, ImagePadding->{{ticklblW+grout,grout},{ticklblH+grout,grout}}, ImageSize->{plotW+ticklblW+2grout,plotH+ticklblH+2grout}, AspectRatio->plotH/plotW, ColorFunction->colorset], ContourPlot[y,{x,0,1},{y,zmin,zmax},Contours->contours, ImagePadding->{{grout,ticklblW+grout},{ticklblH+grout,grout}}, ImageSize->{legendW+ticklblW+2grout,plotH+ticklblH+2grout}, AspectRatio->plotH/legendW, FrameTicks->{{None,contours},{None,None}}, ColorFunction->colorset] }}] ] ] -- Dan
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- Re: color-bar legend for the LisContourPlot