how to generate many plots without so many input lines?
- To: mathgroup at smc.vnet.net
- Subject: [mg9651] how to generate many plots without so many input lines?
- From: robpeterson at iname.com
- Date: Mon, 17 Nov 1997 19:50:11 -0500
- Organization: Flashnet Communications, http://www.flash.net
- Sender: owner-wri-mathgroup at wolfram.com
The following code nicely plots a bunch of curves on one plot.
***************************************
x[u_,v_]:=(u+1+Exp[u]
Cos[v])/Pi;
y[u_,v_]:=(v+ Exp[u] Sin[v])/Pi;
(* here are the equipotential surfaces *) v=Pi;
a=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=Pi/1.2;
b=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=Pi/1.5;
c=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=Pi/2;
d=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=Pi/4;
e=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=-Pi/4;
f=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=-Pi/2;
g=ParametricPlot[{x[u,v],y[u,v]},{u,-2Pi,Pi},
AspectRatio->Automatic,DisplayFunction->Identity];
v=-Pi;
h=ParametricPlot[{x[u,v],y[u,v]},{u,-Pi,Pi},AspectRatio->Automatic,
DisplayFunction->Identity];
Show[{a,b,c,d,e,f,g,h},
DisplayFunction->$DisplayFunction]
*****************************************
Surely there is a way to generate the list {a,b,c,d,e,f,g,h} more
easily/elegantly. Here's what I tried:
{a,b,c,d,e,f}=
ParametricPlot[{x[u,v],y[u,v]},{u,-Pi,Pi},AspectRatio->Automatic,
DisplayFunction->Identity]
/. v->{Pi/1.2,Pi/1.5,Pi/2,Pi/4,Pi/8,Pi/16}
This doesn't work at all. I get all kinds of error messages I don't
understand. Can someone tell me whether each plot must be generated on
a separate line?
Thanks for any clues, Rob