Hi Torsten,
I think you are almost done. I assume the data in your
display is a Field probably a FlatField).
If you declare:
PickManipulationRendererJ3D pick = new ...
Then in the doAction() of your CellImpl, do:
int index = pick.getCloseIndex();
Now index is the index of the "picked" sample in your
Field. You can get the range value at that sample with:
Data range = field.getSample(index)
And you can get the "picked" Field domain location with:
Set set = field.getDomainSet();
float[][] values = set.indexToValue(new int[] {index});
// now location is (values[0][0], values[1][0], ...)
Please let us know if this is not clear.
Cheers,
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 Wed, 11 Oct 2000, Heftrich, Torsten, AVENTIS/DE wrote:
> Hello,
>
> I try to create an interactive 2D plot, where the user can pick one Point.
> Then detailed information should be displayed.
> I managed to create an PickManipulationRendererJ2D for that, based on the
> PickManipulationRendererJ3D which gives me the Reference of the clicked
> data.
>
> I did that as suggested in
> http://www.unidata.ucar.edu/staff/russ/visad/msg01332.html, but i could'nt
> figure out how to use the getCloseIndex() Method mentioned in
> http://www.unidata.ucar.edu/staff/russ/visad/msg01333.html to get the one
> point that was clicked without creating a data reference for every single
> point.
>
> The Question is: How can I use the PickManipulationRendererJ2D class in the
> doAction Method of CellImpl?
>
> Thanks for any help about that,
>
> Torsten
>
>
> Torsten Heftrich
> Aventis Research & Technologies
> Frankfurt, Germany
>
> email: heftrich@xxxxxxxxxxxxxxx
>
