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Re: Changing mouse behavior in VisAD

<html>
<blockquote><font size=2 color="#000080">Hi Tolga,<br>
<blockquote type=cite cite>
<dl>
<dd>where I add the DisplayListener at the first display. Now when I do
the LEFT+RIGHT mouse buttons pressed (it says CENTER but my middle mouse
button does not do this, don't know why) I get xval and yval and
everything is working fine. </font>
<dd>&nbsp;<font size=2 color="#000080">
<dd>Now when I change this to e.getId() =
DisplayEvent.MOUSE_PRESSED_RIGHT, I get NaN for xval and yval.
Interestingly, RIGHT+LEFT still is caught (although I do not catch it)
and y and x values are shown on the left top corner, updating constantly,
as long as I hold RIGHT+LEFT. Now this is what I mean by unexpected
behavior. I want to be able to control that constant display, so that I
can do it with MOUSE_MOVED event.</font></blockquote></blockquote>
</dl><br>
</blockquote>The getDirectAxisValue() method is probably not what you
want here (it appears to be<br>
dependent on RIGHT+LEFT clicks).&nbsp; Instead, take a look at the
displayChanged() method<br>
of visad.bio.LinePool.&nbsp; It obtains the 2-D coordinates of a mouse
click upon LEFT mouse<br>
button release.&nbsp; It is a bit complicated but you should be able to
copy and adapt most<br>
of the code from LinePool to suit your purposes.&nbsp; The key line
is:<br>
<br>
&nbsp;&nbsp;&nbsp;&nbsp; double[] coords
cursorToDomain(pixelToCursor(x, y));<br>
<br>
Along with the corresponding cursorToDomain() and pixelToCursor()
methods.<br>
<br>
Unfortunately, VisAD does not currently have a DisplayEvent.MOUSE_MOVED
event,<br>
so it is difficult to continuously track values as the mouse moves.&nbsp;
Perhaps you could do<br>
it with a MouseMotionListener (I haven't tried it), but I have a feeling
Java3D would interfere<br>
with that and eat the events.<br>
<br>
-Curtis<br>
</html>
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