Hi Dave,
Try replacing the two ScalarMaps to RGB amd to Alpha,
with one Sca;arMap to RGBA. See visad/examples/Test20.java
for an example. You can either use a LabeledColorWidget
to set the color table interactively, or you can get the
ColorAlphaControl and call its setTable(float[][] table)
method where table is [4][table_length].
Happy Holidays,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI 53706
hibbard@xxxxxxxxxxxxxxxxx 608-263-4427 fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html
On Fri, 21 Dec 2001 d-nguyen@xxxxxxxxxxxxxxxx wrote:
> Hello,
>
> I am trying to add transparency to my program. It's currently set up like
> this:
>
> (index)->(x, y, z, value)
>
> and I have Maps added as such
>
> display.addMap( new ScalarMap( x, Display.XAxis ) );
> display.addMap( new ScalarMap( y, Display.YAxis ) );
> display.addMap( new ScalarMap( z, Display.ZAxis ) );
> display.addMap( new ScalarMap( value, Display.RGB ) );
> display.addMap( new ScalarMap( value, Display.Alpha ) );
>
> But it does not seem to be working. I am currently running Java3D OpenGl
> version.
>
> The value data set ranges from 0 to about 3,000 with the majority of the
> values
> being near 1. I would like it so that the lower the value, the more
> transparent
> it is so that those near the higher end stands out and is not hidden by the
> "cloud" of lower level particles.
>
> Any ideas?
>
> Thanks everyone,
> -dave
>
>
