Re: VectorFieldPlot Arrows
- To: mathgroup at smc.vnet.net
- Subject: [mg83589] Re: VectorFieldPlot Arrows
- From: congruentialuminaire at yahoo.com
- Date: Sat, 24 Nov 2007 04:06:36 -0500 (EST)
- References: <fhu8fn$7ng$1@smc.vnet.net>
Hello John Lee:
My experience is that this very helpful group gives better results
when I give a (hopefully simplified) code sample of my problem with
corresponding error messages. Just a suggestion.
In any event, here is some investigation which I hope you can use to
address your problem.
- look at the Arrowheads[] and VectorFieldPlot[] samples in the help
browser
- type in the following from the help browser sample
(* save the Mathematica graphics commands *)
VFPgrapfixCommands = VectorFieldPlot[{Sin[x], Cos[y]}, {x, 0, 2 \
[Pi]}, {y, 0, 2 \[Pi]}];
- look inside the commands..lo and behold they contain the stuff you
are looking for
(* look at them *) ?VFPgrapfixCommands
- these dumps give you the primitives you are looking for
VFPgrapfixCommands[[1, 2]]
VFPgrapfixCommands[[1, 2]]
- figure out some Map[]/MapAt[] function calls you need to modify
these to your liking
- feed this back into Show@Graphics[] to get the desired plot
Thanks to DPark, MTrott, et.al. for "teaching" me this.
HTH
Regards..Roger W.
On Nov 20, 1:13 am, John Lee <johnlee... at hotmail.com> wrote:
> Hello,
>
> I am having a problem with the "VectorFieldPlot" function. <snipped/>