A light-cone diagram in Gnuplot

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The discussion focuses on generating a light-cone diagram in GNUPLOT, referencing a specific example from a provided link. The user has a data file containing redshift and right ascension values and seeks guidance on creating a polar plot similar to the one in the linked document. It is noted that GNUPLOT has routines available for drawing sections of a circle, which can be utilized to achieve the desired plot. The conversation emphasizes the need for specific GNUPLOT commands or techniques to effectively visualize the data in the requested format.
sketos
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Hello,

If you visit this link (http://maia.ice.cat/cosmocomp/bcn_workshop/woodward.pdf ) you will see in page 3 a light-cone diagram!

How is it possible to generate it in GNUPLOT?

Note: i have a "data.file" with points and the columms are:
1) z (redshift)
2)Right ascension (RA)

Simillarly with the graph in the above link,
Thanks!
 
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Basically, that is a polar plot. There are routines in gnuplot to draw a section of a circle.
 

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