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Re: Hatched shading?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg111210] Re: Hatched shading?
  • From: Alexei Boulbitch <alexei.boulbitch at iee.lu>
  • Date: Fri, 23 Jul 2010 07:14:49 -0400 (EDT)

Playing with PlotPoints stops this for a certain ImageSize but may fail 
for a different one,
 while playing with both PlotPoints and AbsoluteThickness may help to
stop it, if the imageSize is changed.

Manipulate[
 f[x_] := Sin[x];
 Plot[{Table[(x - k)/3, {k, -3, 3, .3}], f[3 x]}, {x, 0, 3},
  PlotRange -> {0, 1},
  RegionFunction -> Function[{x, y}, 0 < y <= f[3 x]],
  PlotStyle -> {Directive[AbsoluteThickness[m], Red],
    Directive[Thick, Blue]}, PlotPoints -> n,
  ImageSize -> 250], {{m, 1.36}, 0.1, 5}, {{n, 46}, 10, 100, 2}]

Alexei

I see similar artifacts on a Mac. Playing with PlotPoints can stop this

$Version

7.0 for Mac OS X x86 (64-bit) (February 19, 2009)

f[x_] := Sin[x];

Plot[{
  Table[(x - k)/3, {k, -3, 3, .10}],
  f[3 x]},
 {x, 0, 3},
 PlotRange -> {0, 1},
 RegionFunction ->
  Function[{x, y}, 0 < y <= f[3 x]],
 PlotStyle -> {
   Directive[AbsoluteThickness[4], Red],
   Directive[Thick, Blue]},
 PlotPoints -> 40]


Bob Hanlon


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