Obst: Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

2018-04-17T13:23:16Z

Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

Obst: Obst moved page Compounds and multi-panel plots (xfig example) to Example: compounds and multi-panel plots without leaving a redirect: revert

2018-04-17T09:02:37Z

Obst moved page Compounds and multi-panel plots (xfig example) to Example: compounds and multi-panel plots without leaving a redirect: revert

Obst: Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

2018-04-17T09:01:29Z

Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

Sokolova-lapa: Created page with " Category:SLxfig an example added by Manfred ===== Compounds ===== A 'compound' is a collection of several Xfig objects (of any type) that are grouped toge..."

2018-04-13T16:55:26Z

Created page with " Category:SLxfig an example added by Manfred ===== Compounds ===== A 'compound' is a collection of several Xfig objects (of any type) that are grouped toge..."

New page

[[Category:SLxfig]]
an example added by Manfred

===== Compounds =====
A 'compound' is a collection of several Xfig objects (of any type) that are grouped together,
i.e., they can be rendered at once and be transformed – e.g., translated, scaled, and maybe rotated – together.

The function <code>xfig_new_compound</code> creates such a 'compound' as an SLxfig object, see
help("xfig_new_compound");
Note that <code>xfig_new_compound</code> assumes that the member objects are already aligned with respect to each other.

In contrast, the functions <code>xfig_new_hbox_compound</code> and <code>xfig_new_vbox_compound</code>
translate the objects (which are given as arguments to these functions) in horizontal, respectively vertical direction
such that those become aligned next to, respectively on top of each other.
Additional spacing can be specified as an optional last argument.

While <code>xfig_multiplot</code> can take an array of plots like <code>xfig_multiplot([pl1,pl2,pl3])</code>, <code>xfig_new_*compound</code> needs each plot to be an individual argument: <code>xfig_new_*compound(pl1,pl2,pl3)</code>. The use of <code>_ _push_array</code> (available through the isisscripts) helps to circumvent this issue:
<code>
require("isisscripts");
...
variable plotlist = [pl1,pl2,pl3];
...
xfig_new_hbox_compound(__array_push(plotlist));
</code>
===== Multi-panel plots =====
The function <code>xfig_multiplot</code> combines several plot objects
(which are themselves compounds of many low-level objects, such as lines and images)
into a compound object, and additionally removes those labels and ticlabels
that are superfluous if more plots share the same axes.
However, the user must ensure him/herself that the plots which are to be combined in a multiplot,
have all the same respective axes!

===== Example =====
variable W=5, H=4, % width & height; all plots will use these sizes
x=[-sqrt(2):sqrt(2):#101]; % and these values on the x-axis

variable pl11=xfig_plot_new(W, H);
pl11.plot(x,x^4);

variable pl12=xfig_plot_new(W, H);
pl12.plot(x, -x^2);

variable pl2=xfig_plot_new(W, 2*H); % twice as high
pl2.plot(x, x^4-x^2);

% combine plots pl11 and pl12 to a mulitplot
variable mp1 = xfig_multiplot(pl11, pl12);

% combine the multiplot mp1 and the plot pl2 horizontally next to each other
variable comp = xfig_new_hbox_compound(mp1, pl2, 0.3);
comp.render("multiplot_and_plot.eps");
[[File:multiplot_and_plot.png|multiplot_and_plot.png]]

If <code>mp1</code> and <code>comp</code> are not needed for anything else, the latter three commands could also have been combined into a single one:
xfig_new_hbox_compound( xfig_multiplot(pl11, pl12),
pl2,
0.3
).render("multiplot_and_plot.eps");

Note that for the creation of the above image, I took advantage of <code>comp</code> being a compound, and resized all objects together:
comb.scale(0.75);
comp.render("multiplot_and_plot.png");

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Compounds and multi-panel plots (xfig example) - Revision history

Obst: Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

Obst: Obst moved page Compounds and multi-panel plots (xfig example) to Example: compounds and multi-panel plots without leaving a redirect: revert

Obst: Obst moved page Example: compounds and multi-panel plots to Compounds and multi-panel plots (xfig example) without leaving a redirect

Sokolova-lapa: Created page with " Category:SLxfig an example added by Manfred ===== Compounds ===== A 'compound' is a collection of several Xfig objects (of any type) that are grouped toge..."