RE: how-to show a contourplot together with a point grid

*To*: mathgroup at smc.vnet.net*Subject*: [mg72055] RE: [mg72006] how-to show a contourplot together with a point grid*From*: "David Annetts" <davidannetts at aapt.net.au>*Date*: Sun, 10 Dec 2006 04:49:02 -0500 (EST)

Hi, > i have a matix of dimension {m,n} and make a > listcontourplot out of it. and i have another matrix of the > same dimension and make a plot by > : Show[Map[Point,grid]]. > i want to overlap these two plots together. And I have > tried using the second one as the Epilog of the first one, > but it did not work. any ideas? > generally, how can i overlap two plots in one figure? > thanks for your attentions and reply It is very difficult to give specific help since you heven't given a specific example. In future, I suggest you post the code that you are having problems with. Generate some data, then plot it data = Table[Sin[x y], {x, -Pi, Pi, Pi/10}, {y, -Pi, Pi, Pi/10}]; cplt = ListContourPlot[data, ColorFunction -> Rainbow, MeshRange -> {{-Pi, Pi}, {-Pi, Pi}}, FrameTicks -> {PiScale, PiScale, None, None}]; For the colour function, I define Rainbow[z_] := Hue[.8 z]; You will also need to load Graphics`Graphics for PiScale to work. Next, generate the points and plot them pnts = Table[{x, y}, {x, -Pi, Pi, Pi/10}, {y, -Pi, Pi, Pi/10}]; pplt = Show[Graphics[Point[#] & /@ Partition[Flatten[pnts], 2]]]; Finally, display the two plots Show[cplt, pplt]; Show[] is usually how you'd display two (or more) plots together. Regards, Dave.