Re: Dynamic Text in Manipulate.
- To: mathgroup at smc.vnet.net
- Subject: [mg112045] Re: Dynamic Text in Manipulate.
- From: Christoph Lhotka <christoph.lhotka at univie.ac.at>
- Date: Fri, 27 Aug 2010 04:06:13 -0400 (EDT)
Hello,
is it what you want?
Triangle[{A_, B_, C_}] := {Line[{A, B, C, A}],
Text[StringReplace["A" <> ToString[A], "," -> ";"], A],
Text[StringReplace["B" <> ToString[B], "," -> ";"], B],
Text[StringReplace["C" <> ToString[C], "," -> ";"], C]}
Manipulate[
Graphics[Triangle[{A, B, C}]],
{{A, {0, 0}}, {0, 0}, {1, 1}},
{{B, {1, 0}}, {0, 0}, {1, 1}},
{{C, {0, 1}}, {0, 0}, {1, 1}},
ControlType -> Slider2D, ControlPlacement -> Right]
best regards,
christoph
On 25/08/2010 12:04, Matthias Bode wrote:
> Hola:
>
> The code below shifts a triangle with Manipulate[]. I want the coordinates
> of the corners A{x;y}, B{x;y}, C{x;y} inside the {;} to change
> with the shift.
>
> Rather than my pedestrian dissecting method
>
> Text["A {", {2 - u, 7/5 - u*(4/5)}],
> Text[Dynamic[2 - u, u], {2.2 - u, 7/5 - u*(4/5)}],
> Text[";", {2.32 - u, 7/5 - u*(4/5)}],
> Text[Dynamic[8/5 - u*(4/5), u], {2.45 - u, 7/5 - u*(4/5)}],
> Text["}", {2.6 - u, 7/5 - u*(4/5)}],
>
> in five steps I would like to represent "A{x;y}" in ONE command Text[].
>
> How can this be done?
>
> Best regards,
>
> MATTHIAS BODE
> S 17.35775=B0, W 066.14577=B0
>
> gra01 = Plot[x, {x, 0, 5}, AspectRatio -> 1,
> PlotRange -> {{-0.5, 5.1}, {-0.5, 5}},
> AxesLabel -> {x, y},
> GridLines -> {{1, 2, 13/5, 4, 23/5}, {4/5, 8/5, 11/5, 16/5, 23/5}},
> PlotStyle -> Directive[White]];
> Manipulate[Show[{gra01, Graphics[{Directive[PointSize[0.02]],
>
> Point[{{2 - u, 8/5 - u*(4/5)}, {4 - u,
> 11/5 - u*(7/10)}, {23/5 - u, 23/5 - u*(7/10)}}],
> Directive[Thick],
> Line[{{2 - u, 8/5 - u*(4/5)}, {4 - u, 11/5 - u*(7/10)},
> {23/5 - u, 23/5 - u*(7/10)}, {2 - u,
> 8/5 - u*(4/5)}}], Directive[Dashed, Thin, Red],
>
> Line[{{2, 8/5}, {23/5, 8/5}, {23/5, 23/5}, {2, 23/5}, {2, 8/5}}],
> Line[{{4, 8/5}, {4, 11/5}}],
> Line[{{23/5, 11/5}, {4, 11/5}}],
> Directive[FontWeight -> Bold, FontSize -> 13, Black],
> Text["A {", {2 - u, 7/5 - u*(4/5)}],
> Text[Dynamic[2 - u, u], {2.2 - u, 7/5 - u*(4/5)}],
> Text[";", {2.32 - u, 7/5 - u*(4/5)}],
>
> Text[Dynamic[8/5 - u*(4/5), u], {2.45 - u, 7/5 - u*(4/5)}],
> Text["}", {2.6 - u, 7/5 - u*(4/5)}],
> Text["B {4; 11/5}", {4, 9/5}],
> Text["C {23/5; 23/5}", {22/5, 24/5}]}]}], {u, 0, 2,
> 1/10}]
>
>
>
>