Hi Dave, and thanks Mathias for pointing out the MathTypes,
With a MathType of (index -> (x, y, z, value)) your data
are displayed as discrete points, and transparency does
not apply to point displays (this is a property of Java3D).
Transparency only works for surfaces (trianlges or quads),
not for points or lines.
You may be able to reorganize your MathTypes.
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 Sat, 22 Dec 2001 d-nguyen@xxxxxxxxxxxxxxxx wrote:
> Bill, Matthias,
>
> Thanks for both of your suggestions. I have tried those and it seems like I
> cannot affect the transparency of these particles.
>
> I have tried creating a table with the ColorAlphaControl. I have also tried
> using constantMaps. I have tried using the LabeledColorWidget but I do not
> see
> a line for transparency. Nor did I see one when I ran Test20 as suggested.
>
> I'm pretty sure it is not a problem with my system configuration since
> example
> P4_06 from Ugo's tutorial seems to work fine.
>
> I have attached some files below if anyone could possible look at these. I
> would appreciate any feedback.
>
> particle_temperature_32.dat is a data file.
> readdata.java prints out point coordinate and values from data files. Run it
> by
> calling java readdata 32 particle_temperature_32.dat.
> partplot.java is the program I am trying to get working. Run it by calling
> java
> partplot 32 particle_temperature_32.dat
>
> Thanks for any help,
> -dave
>
> >
> >
> > 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
> > >
> > >
> >
> >
>
