Re: if only on parameter of 2D is to be shown in 3D

• To: mathgroup at smc.vnet.net
• Subject: [mg102864] Re: if only on parameter of 2D is to be shown in 3D
• From: gudi <mathma18 at hotmail.com>
• Date: Mon, 31 Aug 2009 06:34:44 -0400 (EDT)
• References: <h7ditg\$ka3\$1@smc.vnet.net>

```Hi Bob,

Thanks. I wish to be able to see either the red lines or the blue
lines, but not both of them together showing small surface cells. Each
surface element should appear with very long aspect ratio, as
rectangles, but never mind.

After the above, opaque surface is required to be shown, usually as in
default Option .

Regards
Narasimham

On Aug 30, 3:05 pm, Bob Hanlon <hanl... at cox.net> wrote:
> Not sure that I know what you want. This may help
>
> Manipulate[
>  Show[{
>    Table[
>     ParametricPlot3D[
>      {u + v^2, u^2 - v, v*u}, {v, -2, 2},
>      PlotStyle ->
>       Directive[AbsoluteThickness[tu], Blue]],
>     {u, -2, 2, du}],
>    Table[
>     ParametricPlot3D[
>      {u + v^2, u^2 - v, v*u}, {u, -2, 2},
>      PlotStyle ->
>       Directive[AbsoluteThickness[tv], Red]],
>     {v, -2, 2, dv}]},
>   PlotRange ->
>    {{-2, 6}, {-2, 6}, {-4, 4}}],
>  {{du, 0.125}, 0.05, 0.40, 0.05,
>   Appearance -> "Labeled"},
>  {{tu, Medium, "Thickness"}, {Medium, Large}},
>  {{dv, 0.125}, 0.05, 0.40, 0.05,
>   Appearance -> "Labeled"},
>  {{tv, Medium, "Thickness"}, {Medium, Large}}]
>
> Bob Hanlon
>
> ---- Narasimham <mathm... at hotmail.com> wrote:
>
> =============
> Is it possible to see only a one parameter family ( either u or v ) of
> lines drawn in
> ParametricPlot3D [ {u + v^2, u^2 - v, v* u }, {u, -2, 2}, {v, -2, 2}]