How to do 3d line plots
in [TCL]
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From: Uwe Klein on 22 Jul 2007 13:30 Richard Owlett wrote: > I've downloaded a current version of gnuplot and it plots my data > nicely. I didn't find a interface to Tcl however.[except one that will > continuously rotate the plot thru various views]. My OS is WinXP. > gnuplot has a terminal driver for the Tk canvas. in a tcl shell do #start package require Tk set gpcmds " set terminal tkcanvas plot sin(x) " set canvcmds [ exec gnuplot << $gpcmds ] eval $canvcmds canvas .c ; pack .c gnuplot .c #end G! uwe
From: Richard Owlett on 22 Jul 2007 16:51 Uwe Klein wrote: > Richard Owlett wrote: > >> I've downloaded a current version of gnuplot and it plots my data >> nicely. I didn't find a interface to Tcl however.[except one that will >> continuously rotate the plot thru various views]. My OS is WinXP. >> > > gnuplot has a terminal driver for the Tk canvas. > > in a tcl shell do > > #start > package require Tk > > set gpcmds " > set terminal tkcanvas > plot sin(x) > " > > set canvcmds [ exec gnuplot << $gpcmds ] > > eval $canvcmds > > canvas .c ; pack .c > > gnuplot .c > > #end > I had to modify the code to reflect path to executable and its name. package require Tk set gpcmds " set terminal tkcanvas plot sin(x) " set canvcmds [ exec "G:\\gnuplot\\bin\\pgnuplot" << $gpcmds ] eval $canvcmds canvas .c ; pack .c pgnuplot .c In response to the last line I receive invalid command name "gnuplot" What is my problem? I am using ActiveStates distribution under WinXP Pro SP2.
From: Uwe Klein on 23 Jul 2007 02:05 Richard Owlett wrote: > Uwe Klein wrote: > >> Richard Owlett wrote: >> >>> I've downloaded a current version of gnuplot and it plots my data >>> nicely. I didn't find a interface to Tcl however.[except one that >>> will continuously rotate the plot thru various views]. My OS is WinXP. >>> >> >> gnuplot has a terminal driver for the Tk canvas. >> >> in a tcl shell do >> >> #start >> package require Tk >> >> set gpcmds " >> set terminal tkcanvas >> plot sin(x) >> " >> >> set canvcmds [ exec gnuplot << $gpcmds ] >> >> eval $canvcmds >> >> canvas .c ; pack .c >> >> gnuplot .c >> >> #end >> > > I had to modify the code to reflect path to executable and its name. > > package require Tk > set gpcmds " > set terminal tkcanvas > plot sin(x) > " > set canvcmds [ exec "G:\\gnuplot\\bin\\pgnuplot" << $gpcmds ] > eval $canvcmds > canvas .c ; pack .c > pgnuplot .c > > In response to the last line I receive > > invalid command name "gnuplot" > > > What is my problem? > I am using ActiveStates distribution under WinXP Pro SP2. > print the content of $canvcmds to the screen or a printer the gnuplot output is essentially a script that defines a couple of procs. proc gnuplot can { ..................... # lots of [expr] and # [$can create ...] stuff } proc gnuplot_plotarea {} { ........... # returns the bbbox of the plot } proc gnuplot_axisranges {} { .............. # returns the x and y scale range and the actual used range } either you made some typing mistake or the [eval] went astray. uwe
From: suchenwi on 23 Jul 2007 04:22 On 22 Jul., 22:51, Richard Owlett <rowl...(a)atlascomm.net> wrote: > I had to modify the code to reflect path to executable and its name. > > package require Tk > set gpcmds " > set terminal tkcanvas > plot sin(x) > " > set canvcmds [ exec "G:\\gnuplot\\bin\\pgnuplot" << $gpcmds ] > eval $canvcmds > canvas .c ; pack .c > pgnuplot .c > > In response to the last line I receive > > invalid command name "gnuplot" > > What is my problem? > I am using ActiveStates distribution under WinXP Pro SP2 I'd first just add puts $canvcmds after the exec line, to see what is in it. From context I guess that it should define a proc named gnuplot...
From: Esa Heikkinen on 23 Jul 2007 05:50
Richard Owlett kirjoitti: > Uwe Klein wrote: >> Richard Owlett wrote: >> >>> I've downloaded a current version of gnuplot and it plots my data >>> nicely. I didn't find a interface to Tcl however.[except one that >>> will continuously rotate the plot thru various views]. My OS is WinXP. >>> >> >> gnuplot has a terminal driver for the Tk canvas. >> >> in a tcl shell do >> >> #start >> package require Tk >> >> set gpcmds " >> set terminal tkcanvas >> plot sin(x) >> " >> >> set canvcmds [ exec gnuplot << $gpcmds ] >> >> eval $canvcmds >> >> canvas .c ; pack .c >> >> gnuplot .c >> >> #end >> > > I had to modify the code to reflect path to executable and its name. > > package require Tk > set gpcmds " > set terminal tkcanvas > plot sin(x) > " > set canvcmds [ exec "G:\\gnuplot\\bin\\pgnuplot" << $gpcmds ] > eval $canvcmds > canvas .c ; pack .c > pgnuplot .c > > In response to the last line I receive > > invalid command name "gnuplot" > > > What is my problem? > I am using ActiveStates distribution under WinXP Pro SP2. > Hi I am little surprised. Is it really possible to run gnuplot inside TCL in canvas ? I was thinking the gnuplot was only "external" program. --- Esa |