> To subscribers of the xforms list from "Dr. T.C. Zhao"
<zhao@bragg.phys.uwm.edu> :
>
> From: "Stephen Langer" <langer@cam.nist.gov>
> > I'm trying to label points on an FL_LINE_CHART. Actually, I just want to
> >highlight one particular point, so I used
> > fl_add_chart_value(obj, val, "@square", FL_BLACK);
> ...
> I've fixed this. While doing this, I also added
> fl_set_chart_l{size|style|colr} to manipulate the
> item label attributes.
>
Thanks! That will be a great help.
What I'd really like to have is an interactive strip chart, where I
can click on a point and mark it, and the mark will move with the point
as new data are added to the chart. I could do this with an XYPlot object,
but then I'd have to reload the whole data set when I want the chart to
scroll. It would be simpler to put a free object on top of the chart. The
free object would intercept the mouse clicks. The difficulty would be in
converting from screen coordinates to chart coordinates -- the curve on
the line chart doesn't go from edge to edge, so it's not obvious how the
x coordinate of a mouse click corresponds to the chart data.
Any suggestions?
Thanks,
-- Steve
-- -- EMail: stephen.langer@nist.gov Phone: (301) 975-5423 -- -- WWW: http://math.nist.gov/acmd/Staff/SLanger/ Fax: (301) 990-4127 -- -- Mail: Building 820 Room 365; NIST; Gaithersburg, Md 20899-0001 -- _________________________________________________ To unsubscribe, send the message "unsubscribe" to xforms-request@bob.usuf2.usuhs.mil or see http://bob.usuf2.usuhs.mil/mailserv/xforms.html Xforms Home Page: http://bragg.phys.uwm.edu/xforms List Archive: http://bob.usuf2.usuhs.mil/mailserv/list-archives/xforms-archive/