You probably should look for information about using the pd command Like in the demos and description
pd 'reset' pd 'type bar' pd 'axes 1 0' pd 'xlabel ',":2001+i.4 pd 'keystyle of' pd 'keypos ro' pd 'key ',PLOTKEYS__loc pd 'title ',PLOTTITLE__loc pd PLOTDATA__loc pd 'show' 2008/2/24, Robert O'Boyle <[EMAIL PROTECTED]>: > > I have been working on an application using the Form Editor and have run > into some snags that perhaps the forum can help me with. My application is > to create a plot of an equation, the coefficients of which I can modify > using a scroll bar. I have run the labs on the Form Editor and gl2 > commands > and read the chapter in JfC on graphics and have gone about as far as I > can. > My script so far is attached. I started from the dice one in the lab. > > > > Here are my questions: > > > > 1. How do I obtain values of a coefficient (e.g. a in > this > case) from the position of the scrollbar? I thought that this had to do > with > the x and y values of sysdata but I couldn't get this to work. It looked > as > if sysdata was updating the position of the mouse not the scrollbar. > > 2. I had though that clicking the scrollbar would > trigger > the plot. It only does the first time so my program flow is not working as > I > thought it should. Can anyone see what I am doing wrong? > > 3. I am a bit challenged by the scaling. The plots use > the > top left corner as 0 0 and pixels for each axis. I'd like to use the > bottom > left corner as the origin. Any easy way to do this? Also, you will see > that > I am plotting outside the plot area. I presume this again is scaling so I > need somewhat to equate pixels and axis better than I am doing. > > 4. Finally, how do you put a frame around the plot and > add > legends, titles and the like? > > > > Any assistance on any of these questions would be much appreciated. > > > > Thanks > > > > Bob > > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Björn Helgason, Verkfræðingur Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127 801 Grímsnes ,t-póst: [EMAIL PROTECTED] Skype: gosiminn, gsm: +3546985532 Landslags og skrúðgarðagerð, gröfuþjónusta http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) `. )----' (")_(")
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