Re: [opendx-users] Log color scale

[Thomas Geenen]

from http://opendx.npaci.edu/mail/opendx-users/2001.02/msg00094.html

You will need to (1)log your data first or (2)create a log based colorscale.

1) Just run your data through compute and enter an appropriate
expression to convert it.

2) Create a color scale using Colormap. Take its output and
Mark(positions), then Compute on the positions using a log expression
that encompasses your data, Unmark(positions) and use this new color
field as the color input to Color.

David

Hi
Is there a quick and obvious way to use colormap to plot my 3D data on a
log scale. Or would I have to log the data first ?
thanks
trudy


~ Knowledge divides the world ~
~ Wisdom makes it whole ~
  -anonymous


succes
Thomas

On Tuesday 11 July 2006 19:51, Vlad Constantin Manea wrote:
 Hi,

 Is there any possibility to plot a log color bar instead a linear one in
 OpenDX?
 If yes, can you guys give me some tips?

 Thanks,
 Vlad

Re: [opendx-users] Log color scale

[Kent Eschenberg]

How can I get off these OpenDX lists? I've submitted requests to do so a dozen 
times over the past few months. The email addresses on www.opendx.org are no 
good - messages cannot be delivered.

Re: [opendx-users] Log color scale

[Vlad Constantin Manea]

You can send an e-mail with your request here:
[EMAIL PROTECTED]

Kent Eschenberg wrote:


How can I get off these OpenDX lists? I've submitted requests to do so a dozen 
times over the past few months. The email addresses on www.opendx.org are no 
good - messages cannot be delivered.