From octave-graphics-request at bevo dot che dot wisc dot edu Sun Oct 20 16:40:25 2002 Subject: getting graph coordinates from plot and others From: =?iso-8859-1?Q?J=E9r=F4me_LEFEVRE?= To: Date: Sun, 20 Oct 2002 21:48:58 +1100 C'est un message de format MIME en plusieurs parties. ------=_NextPart_000_0022_01C27882.7ED70EA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, I 'm new octave user and i try to adapt matlab tool with octave and = gnuplot. Tools are mesh builder and tide analyser for oceanographic and = finite element model purpose. 1/ My main problem is with interactive dialog between octave and gnuplot, = specialy with getting graph coordinates from plot. With ginput, i can get screen ccordinates, but not directly "real" graph = coordinates. In a other hand, new gnuplot package (3.8) integrate mouse support, = which allow user to zoomin, grab a point from plot with pointer and so = on. In gnuplot help, man can read clipboard notion too. I have played a little around octave and gnuplot, but i don't interstand = how to act interactively between octave and gnuplot new feature. I think = that there is a mean to get or copy graph coordinates toward octave, but = i don't know how. Anybody has an idea or a trick ?? 2/ In FAQ, contributor and developper reffer others plot package, like = plplot or pgplot.=20 Do these plot pakage really support getting "real" graph coordinates and = act interactivily with octave ? 3/ Matlab Toolbox from DARTMOUTH Numerical and Mathematical Laboratory are = using to generate and edit Finite Element Mesh. Slowy, i adapt program and function with octave, but i fear to meet = problem with calculation time consumption. I work with large matrice = (200000 - 500000 rows) and i will request octave for work like editing, = interpolation, renumbering, bandwith reduction, refinment and diagnostic = and final mesh plotting. Will Octave bring off this challenge ? Many thanks for your hint. Best regards. Jerome Lefevre. ------=_NextPart_000_0022_01C27882.7ED70EA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

I 'm new octave user and i try to adapt = matlab tool=20 with octave and gnuplot. Tools are mesh builder and tide analyser for=20 oceanographic and finite element model purpose.

My main problem is with interactive = dialog between=20 octave and gnuplot, specialy with getting graph coordinates from = plot.
With=20 ginput, i can get screen ccordinates, but not directly "real" graph=20 coordinates.

In a other hand, new gnuplot package = (3.8)=20 integrate mouse support, which allow user to zoomin, grab a point from = plot with=20 pointer and so on.
In gnuplot help, man can read clipboard notion=20 too.

I have played a little around octave = and gnuplot,=20 but i don't interstand how to act interactively between octave and = gnuplot new=20 feature. I think that there is a mean to get or copy graph coordinates = toward=20 octave, but i don't know how.

Anybody has an idea or a trick = ??

In FAQ, contributor and developper = reffer others=20 plot package, like plplot or pgplot.
Do these plot pakage really = support=20 getting "real" graph coordinates and act interactivily with octave=20 ?

Matlab Toolbox from DARTMOUTH Numerical = and=20 Mathematical Laboratory are using to generate and edit Finite Element=20 Mesh.
Slowy, i adapt program and function with octave, but i fear to = meet=20 problem with calculation time consumption. I work with large matrice = (200000 -=20 500000 rows) and i will request octave for work like editing, = interpolation,=20 renumbering, bandwith reduction, refinment and diagnostic and final mesh = plotting.
Will Octave bring off this challenge ?

Many thanks for your hint.

Best regards.

Jerome = Lefevre.

------=_NextPart_000_0022_01C27882.7ED70EA0--