Hi Charles,
> I want to plot X-Y pairs in a SpreadSheet cell, along with
> the axes and scales. After reviewing the Visad documenation
> and tutorials carefully, I decided that the best way to
> understand how to accomplish things with Visad was to study
> the example programs. Trouble is, all the examples
> produce a drawn object that seems to want to be rotated
> or otherwise manipulated by the mouse in that it 1) doesn't
> fill the container into which it is drawn
You can make the plot fill the container by scaling the
matrix in ProjectionControl. Something like:
DisplayRenderer dr = display.getDisplayRenderer();
MouseBehavior mb = dr.getMouseBehavior();
ProjectionControl pc = display.getProjectionControl()
double[] matrix = pc.getMatrix();
double scale = ... // amount to scale by
double[] t = mb.make_matrix(0.0, 0.0, 0.0, scale, 0.0, 0.0, 0.0);
t = mb.multiply_matrix(t, matrix);
pc.setMatrix(t);
> and 2) can be moved
> around in that space. Neither of these attributes is
> needed or desirable for an ordinary X-Y plot.
You can disable mouse control over the display by extending
MouseBehaviorJ3D or MouseBehaviorJ2D and overriding the
processStimulus() method to do nothing:
public void processStimulus(Enumeration criteria) {
// do nothing
}
See:
http://www.unidata.ucar.edu/glimpse/visad-list/2255
for how to construct a DisplayImpl that uses your extension
of MouseBehaviorJ3D or MouseBehaviorJ2D.
If you want to do this in a SpreadSheet cell, extend
FancySSCell and override the constructDisplay() method
(implemented in BasicSSCell, the parent of FancySSCell).
Good luck,
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
