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Re: opacity "bleeds" in V7 graphics? [compared to V6]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg95850] Re: [mg95781] opacity "bleeds" in V7 graphics? [compared to V6]
  • From: "David Park" <djmpark at comcast.net>
  • Date: Wed, 28 Jan 2009 06:35:00 -0500 (EST)
  • References: <24878804.1233058289690.JavaMail.root@m02>

Roger,

To obtain better quality plots, it is generally better to try the
MaxRecursion option before increasing PlotPoints. So the following looks
much better.

Plot3D[Sin[x^2 + y^2], {x, -3, 3}, {y, -3, 3}, 
 ColorFunction -> (Directive[Opacity[#1], Blue] &),
 MaxRecursion -> 4,
 Mesh -> None]


David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/  



From: congruentialuminaire at yahoo.com [mailto:congruentialuminaire at yahoo.com]


Hello MathGroup:

I am not sure about this problem. Currently all I can tell is that the
result looks different between the 2 versions and we used to call this
"bleeding".

The input run under both version is:

Plot3D[Sin[x^2 + y^2], {x, -3, 3}, {y, -3, 3}
 , ColorFunction -> (Directive[Opacity[#], Blue] &)
 , PlotPoints -> 40, Mesh -> None]

Any help you can provide is appreciated.

Regards..

Roger Williams
Franklin Laboratory




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