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http://glx.sourceforge.net/index.html

GLE (Graphics Layout Engine) is a graphics scripting language designed for creating publication quality figures (e.g., a chart, plot, graph, or diagram). GLE supports various chart types (including function plot, histogram, bar chart, scatter plot, contour plot, color map, and surface plot) through a simple but flexible set of graphing commands. More complex output can be created by relying on GLE's scripting language, which is full featured with subroutines, variables, and logic control. GLE relies on LaTeX for text output and supports mathematical formulea in graphs and figures. GLE's output formats include EPS, PS, PDF, JPEG, and PNG. GLE is licenced under the BSD license. QGLE, the GLE user interface, is licenced under the GPL license.

Cross platform i BSD licenca.
Ovo bi moglo biti vrlo korisno!

Primjeri:
slika

Sam kod je dovoljno čitak: evo primjera (za zadnji graf sa unijom i presijekom krugova)

Kod: Označi sve

size 4 3.7

set hei 0.4 just cc arrowsize 0.2
cy = pageheight()/2; delx = 0.7; crad = 1;
cx1 = pagewidth()/2-delx; cx2 = pagewidth()/2+delx
angle = todeg(acos(delx/crad))

! draw red circle
amove cx1 cy
circle crad fill red
tex "$A$" name A

! draw green circle
amove cx2 cy
circle crad fill green
tex "$B$" name B

! draw yellow intersection
begin path fill yellow stroke
   asetpos cx2 cy; arc crad 180-angle 180+angle
   asetpos cx1 cy; arc crad 360-angle angle
end path

! draw "A \cap B" at the top + corresponding arrow
set just bc
amove pagewidth()/2 cy+1.4
tex "$A \cap B$"
rmove 0 -0.1; aline pagewidth()/2 cy+0.25 arrow end

! draw "A \cup B" at the bottom
set just tc
amove pagewidth()/2 cy-1.4
tex "$A \cup B$"
rmove 0 +0.1; save arroworig

! draw three arrows at the bottom
aline pagewidth()/2 cy-0.25 arrow end
amove ptx(arroworig) pty(arroworig); aline pointx(A.bc) cy-0.25 arrow end
amove ptx(arroworig) pty(arroworig); aline pointx(B.bc) cy-0.25 arrow end

zgodno.

Linux za Sve forum

GLE

GLE

Re: GLE