Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2009

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: L-shaped ListContourPlot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97188] Re: L-shaped ListContourPlot
  • From: ADL <alberto.dilullo at tiscali.it>
  • Date: Sat, 7 Mar 2009 02:41:08 -0500 (EST)
  • References: <goqpdt$lri$1@smc.vnet.net> <goqugi$ngc$1@smc.vnet.net>

I found another problem: RegionFunction does not appear to work
properly in version 7.0.0 (I did not checked version 7.0.1). Just
compare the following plots:

p1=ListContourPlot[
 data, RegionFunction ->
  Function[{x, y, z}, (y < 5) || (x < 2) || (x > 15)],
 BoundaryStyle -> Black
 ]

p2=ListContourPlot[
 {{0, 0, 0}, {20, 0, 1}, {20, 10, 2}, {0, 10, 3}},
 RegionFunction ->
  Function[{x, y, z}, (y < 5) || (x < 2) || (x > 15)],
 BoundaryStyle -> Black
 ]

p3=RegionPlot[(y < 5) || (x < 2) || (x > 15), {x, 0, 20}, {y, 0, 10}]

Both p1 and p2 do not show the correct region shown in p3.
Moreover, different shapes appear depending on the inequalities and on
the data, in a rather unpredictable way (at least to me).

$Version == 7.0 for Microsoft Windows (32-bit) (November 10, 2008)

ADL


  • Prev by Date: Re: Creating own typesetting palettes
  • Next by Date: Re: Differential equation with several variables in the
  • Previous by thread: Re: L-shaped ListContourPlot
  • Next by thread: Re: L-shaped ListContourPlot