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
