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Re: manipulate contourplot question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg100681] Re: manipulate contourplot question
  • From: Helen Read <hpr at together.net>
  • Date: Wed, 10 Jun 2009 20:36:29 -0400 (EDT)
  • References: <h0p7ak$br$1@smc.vnet.net>
  • Reply-to: read at math.uvm.edu

van der Burgt, Maarten wrote:
> Dear all,
> 
> 
> 
> The following produces a smooth function. But when I hold and move the
> slider the function appears jagged and is only fully drawn when I
> release the slider.
> 
> I know this is done to show an initial result very fast. Is there a
> method to influence this behavior?
> 
> 
> 
> Manipulate[
> 
>  ContourPlot[
> 
>   a x^2 + 2 b x y + c y^2 + 2 d x + 2 f y + g == 0 /. {a -> 1, 
> 
>      c -> 3, d -> 0,  f -> 0, g -> -1} // Evaluate, {x, -5,
> 
>    5}, {y, -5, 5}, PlotPoints -> 10], {{b, 0}, -5, 5}]

Include the option PerformanceGoal -> "Quality" within the ContourPlot.

--
Helen Read
University of Vermont


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