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Re: Drawing a Line From One Plot to Another
Posted:
Aug 20, 2012 4:16 AM
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f2[x_]:=2 x
f1[x_]:= x^2
xmin =-3;
xmax= 3;
plotrange1={{-3.3,3.3},{-0.9,9.9}};
plotrange2={{-3.3,3.3},{-6.6,6.6}};
Manipulate[
Module[{isize =300},
xmin =-3;
xmax= 3;
pt11 ={xx, f1[xx]};
pt12 ={xx, plotrange1[[2]][[1]]};
g1 =Show[{Plot[f1[x],{x,xmin,xmax},PlotStyle-> Purple ],
Graphics[{{Red,Dashed, Line[{pt11 ,pt12}]}, Red,PointSize[.02],
Point[pt11], Black, Circle[pt11,Offset[4]]}]}, PlotRange -> plotrange1,
Axes-> True,AxesStyle->{Transparent,LightGray},Ticks->Automatic,Frame->
True,FrameStyle -> {{LightGray, LightGray},{Transparent,
LightGray}},FrameTicks -> False,ImageSize -> isize];
pt21 ={xx, f2[xx]};
pt22 ={xx, plotrange2[[2]][[2]]};
g2=Show[{Plot[f2[x],{x,xmin,xmax},PlotStyle-> Blue ], Graphics[{{Red,Dashed,
Line[{pt21 ,pt22}]}, Red,PointSize[.02], Point[pt21],Black,
Circle[pt21,Offset[4]]}]}, PlotRange -> plotrange2, Axes->
True,AxesStyle->{Transparent,LightGray},Ticks->Automatic,Frame->
True,FrameStyle -> {{LightGray,
LightGray},{LightGray,{Dashed,LightGray}}},FrameTicks -> False,ImageSize ->
isize];
Column[{g1,g2},Center,Spacings->0]],
{{xx,.6,"Current 'x' value"},xmin,xmax, ImageSize->Small}]
(* Try the slider and the Manipulate 'Autorun' *)
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