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about axes properties
by Francesco Potortì
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In the 3.0 manual, I read exactly the same description for both the
"position" and "outerposition" properties. Also, while plotting two graphs in two subplots, I see that I can move them around using "outerposition", while changing "position" apparently has no effect. Guessing the right numbers for "outerposition" is a matter of trying. Can someone shed some light on these misteries? -- Francesco Potortì (ricercatore) Voice: +39 050 315 3058 (op.2111) ISTI - Area della ricerca CNR Fax: +39 050 315 2040 via G. Moruzzi 1, I-56124 Pisa Email: Potorti@... (entrance 20, 1st floor, room C71) Web: http://fly.isti.cnr.it/ _______________________________________________ Help-octave mailing list Help-octave@... https://www.cae.wisc.edu/mailman/listinfo/help-octave |
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Re: about axes properties
by Michael Goffioul-2
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On Wed, Jul 23, 2008 at 6:25 PM, Francesco Potorti` <Potorti@...> wrote:
> In the 3.0 manual, I read exactly the same description for both the > "position" and "outerposition" properties. > > Also, while plotting two graphs in two subplots, I see that I can move > them around using "outerposition", while changing "position" apparently > has no effect. This is a limitation of the gnuplot backend (I guess you're using that one). In practice, both should have an influence on the axes actual position. "Position" is the position of the axes box, while "outerposition" is the bounding box of the complete axes system, including labels, title, ticks... When you deal with subplot, you usually want to set the axes outerposition, because you're then sure that the axes won't overlap each other. Michael. _______________________________________________ Help-octave mailing list Help-octave@... https://www.cae.wisc.edu/mailman/listinfo/help-octave |
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Re: about axes properties
by Francesco Potortì
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>This is a limitation of the gnuplot backend (I guess you're using that
>one). In practice, both should have an influence on the axes actual >position. "Position" is the position of the axes box, while "outerposition" >is the bounding box of the complete axes system, including labels, >title, ticks... When you deal with subplot, you usually want to set >the axes outerposition, because you're then sure that the axes won't >overlap each other. This is clear and consistent with my observations. If no one adds anything, I will rewrite the docs about "position" and "outerposition" and submit them as bug reports. _______________________________________________ Help-octave mailing list Help-octave@... https://www.cae.wisc.edu/mailman/listinfo/help-octave |
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Re: about axes properties
by Francesco Potortì
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>My understanding is that the parameter for outerposition is a vector
>p(1,2,3,4) with: > >p(1) is the x-coordinate of the lower left corner of the plot >p(2) is the y-coordinate of the lower left corner of the plot >p(3) is the width of the plot >p(4) is the height of the plot > >All these values are given in relative units, i.e. in fractions of the >width and height of the graph window, where (0/0) is the lower left >corner of the window and (1/1) is the upper right corner. Yes, this is I too deduced from the current documentation. >Does that make sense? Yes, this is approximately the behaviour I observe. >If so, something along these lines should propably be added to the >documentation. I could do that, but some things are not clear to me. 1) I can enlarge the plot up to 1.2 without exceeding the window boundaries. 2) Apparently, when you make subplots, you can still move them around through the whole window, which is good and useful, but also means that "outerposition" is somehow initialised: why can't one look at the initial values? 3) How does "aspectratio" interact with the imposed size? _______________________________________________ Help-octave mailing list Help-octave@... https://www.cae.wisc.edu/mailman/listinfo/help-octave |
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Re: about axes properties
by John W. Eaton
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On 24-Jul-2008, Francesco Potorti` wrote:
| >My understanding is that the parameter for outerposition is a vector | >p(1,2,3,4) with: | > | >p(1) is the x-coordinate of the lower left corner of the plot | >p(2) is the y-coordinate of the lower left corner of the plot | >p(3) is the width of the plot | >p(4) is the height of the plot | > | >All these values are given in relative units, i.e. in fractions of the | >width and height of the graph window, where (0/0) is the lower left | >corner of the window and (1/1) is the upper right corner. | | Yes, this is I too deduced from the current documentation. | | >Does that make sense? | | Yes, this is approximately the behaviour I observe. | | >If so, something along these lines should propably be added to the | >documentation. | | I could do that, but some things are not clear to me. | | 1) I can enlarge the plot up to 1.2 without exceeding the window | boundaries. | | 2) Apparently, when you make subplots, you can still move them around | through the whole window, which is good and useful, but also means | that "outerposition" is somehow initialised: why can't one look at | the initial values? | | 3) How does "aspectratio" interact with the imposed size? Please remember that with the current graphics system, we are generally doing what we can to approximate the relatively large and complex Matlab graphics system given limited developer resources and the limitations of gnuplot. It might not always be possible to do the Matlab-compatible thing given gnuplot's features. Also, we are in the process of replacing the gnuplot backend with an OpenGL-based renderer, so any heroic efforts to improve the gnuplot backend might not be justified. If you'd like to discuss this further, or help to improve Octave's graphics system, I think the maintainers list is a better place for the discussion.. jwe _______________________________________________ Help-octave mailing list Help-octave@... https://www.cae.wisc.edu/mailman/listinfo/help-octave |
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Re: about axes properties
by abdominales
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Hi,
I would want to write a vector that begins in one certain point, so my idea was using the function compass and changing the position of the origin of the axes. But it doesn't work, always draw the vector(arrow) emergin from the same origin. ¿have you got any idea? Thanks.
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Re: about axes properties
by abdominales
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If I use "outerposition" property, the effect is like the point of view of the scene changes, but the true axis doen't change.
What I want is to plot a vector (arrowlike) with the origin I want in a 2D space. The idea is associate one vector to one point of the space (x,y). (x,y) --> (v1,v2). If I use compass, all the vectors I draw have the origin in (0,0), I would like to plot different arrows qith the origin different than actual (0,0). I have tried also quiver, but I only can plot a vector field defining his function F(x,y) = M(x,y) i + N(x,y) j I would like to draw one vector (v1,v2) that has origin at the point (x,y). Thanks.
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Re: about axes properties
by Michael Goffioul-2
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I think you're looking for quiver.
Michael. On Tue, Aug 12, 2008 at 6:43 AM, abdominales <jmt.mm05@...> wrote: > > If I use "outerposition" property, the effect is like the point of view of > the scene changes, but the true axis doen't change. > What I want is to plot a vector (arrowlike) with the origin I want in a 2D > space. > > The idea is associate one vector to one point of the space (x,y). (x,y) --> > (v1,v2). > > If I use compass, all the vectors I draw have the origin in (0,0), I would > like to plot different arrows qith the origin different than actual (0,0). > > I have tried also quiver, but I only can plot a vector field defining his > function F(x,y) = M(x,y) i + N(x,y) j > > I would like to draw one vector (v1,v2) that has origin at the point (x,y). > > Thanks. Help-octave mailing list Help-octave@... https://www-old.cae.wisc.edu/mailman/listinfo/help-octave |
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