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gui construction - How to set the slider width inside Manipulate


I use the code below to visualise the connection between a sine curve and the unit circle, but would like to make the slider wider, so it has at least almost the same with as the image. I have tried to replace ControlType->Slider[] with ControlType -> Slider[ImageSize->800], but this seems to have no effect at all och the resulting graphics. The question is thus how to set the width of the slider inside Manipulate?


Manipulate[
 With[{ar = 1/(2*Pi), o = v - Cos[v]}, 
  Show[Plot[Sin[x], {x, -6*Pi, 6*Pi}, 

    PlotRange -> {{-2*Pi, 2*Pi}, {-1, 1}}, PlotStyle -> {Black}, 
    AxesLabel -> {"v", Sin["v"]}, AspectRatio -> ar],
   ListLinePlot[{{o + Cos[v], 0}, {o + Cos[v], Sin[v]}}, 
    PlotStyle -> {Thick, Black}, AspectRatio -> ar],
   ListLinePlot[{{o + Cos[v], Sin[v]}, {o, 0}}, 
    PlotStyle -> {Dashed, Black}, AspectRatio -> ar],
   Graphics[{AbsolutePointSize[8], Point[{o, 0}]}, AspectRatio -> ar],
   Plot[{-Sqrt[1 - (x - o)^2], Sqrt[1 - (x - o)^2]}, {x, o - 1, 
     o + 1}, PlotRange -> {{-2*Pi, 2*Pi}, {-1, 1}}, 
    PlotStyle -> {{Thick, Orange}, {Thick, Orange}}, 

    AspectRatio -> ar], ImageSize -> 800]], {v, -3/2*Pi, 3/2*Pi}, 
 ControlType -> Slider[]]

The resulting graphics



Answer



You have to study the documentation carefully, but I agree that help-pages like the one of Manipulate are very densely packed with information. In the Details and Options section you find how to set options for controls:



{{u,...},...,opts}    control with particular options

The non-obvious part is, that you have to set the ControlType as well to make this work. Therefore, you can use



{v, -3/2*Pi, 3/2*Pi, ControlType -> Slider, ImageSize -> 800}

to achieve the wanted behavior. Another way is to replace Manipulate by a full DynamicModule which is a bit more code but gives you some more flexibility


DynamicModule[{v = -3/2 Pi, o},
 o = v - Cos[v];
 Panel@
  With[{ar = 1/(2*Pi)},
   Column[{
     Slider[Dynamic[v, (v = #; o = v - Cos[v]; &)], {-2 Pi, 2 Pi}, 
      ImageSize -> 800],

     Dynamic@
      Show[Plot[Sin[x], {x, -6*Pi, 6*Pi}, 
        PlotRange -> {{-2*Pi, 2*Pi}, {-1, 1}}, PlotStyle -> {Black}, 
        AxesLabel -> {"v", Sin["v"]}, AspectRatio -> ar], 
       ListLinePlot[{{o + Cos[v], 0}, {o + Cos[v], Sin[v]}}, 
        PlotStyle -> {Thick, Black}, AspectRatio -> ar],
       ListLinePlot[{{o + Cos[v], Sin[v]}, {o, 0}}, 
        PlotStyle -> {Dashed, Black}, AspectRatio -> ar], 
       Graphics[{AbsolutePointSize[8], Point[{o, 0}]}, 
        AspectRatio -> ar], 

       Plot[{-Sqrt[1 - (x - o)^2], Sqrt[1 - (x - o)^2]}, {x, o - 1, 
         o + 1}, PlotRange -> {{-2*Pi, 2*Pi}, {-1, 1}}, 
        PlotStyle -> {{Thick, Orange}, {Thick, Orange}}, 
        AspectRatio -> ar], ImageSize -> 800, Background -> White]
     }]
   ]]

enter image description here


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