Venn Diagram Syntax

Problem

I’m always frustrated when I have to manually create Venn diagrams of more than 4 intersecting circles. It might sound trivial but arranging complex Venn diagrams in a legible manner is annoying and hard with most of the standard diagraming tools I’ve used.

Request

This was already brought up many years ago in #200 but Venn diagram in syntax in Mermaid would be great.

Venn Diagrams are basically just a visualization of set theory. So the syntax would just have to implement basic set operations:

• Unions
• Intersections
• Compliments
• Differences

Potential Syntax

Something like the following could be a good syntax:

vennDiagram
  set A
  set B
  set C

  intersect A B
  union B C
  relativeComplement A C

I know everyone is busy. I am just wondering what the general interest is from the community on prioritizing this versus other new diagram formats.

[endolith]

You can vote here: https://github.com/mermaid-js/mermaid/issues/177#issuecomment-345474864

But do you really want Venn diagrams or do you want Euler diagrams?

https://en.wikipedia.org/wiki/Euler_diagram#Relation_between_Euler_and_Venn_diagrams

[brunolnetto]

Citation : Batman would say: “This is not the answer you need, but the answer you deserve.”

Fact : This feature will not happen any time soon on mermaid (@knsv is needed to confirm this claim);

Reason : The visual complexity of potential 2^n intersections on a n-sets-scenario (See product “interactiVenn” on URL http://www.interactivenn.net/, first remarked here on @Roderick-Jonsson’ comment)

Solution : As @endolith points out, I would be really glad for you guys to enjoy the libraries below I wrote:

python     : https://github.com/quivero/eule
javascript : https://github.com/web-needle/eulejs

Tags: @arjansingh @wolfspyre @wilsonjholmes @bobturneruk @MathiasSven @philbo87 @MoniqueSmiling @mathiasgheno @kimploo @PogiNate @JonLoose @j-r-e-i-d @LucVidal360 @Casyfill @FrodoChen @FelipeAdachi @tyten @ElectricSwan @huangyinhaow @I7T5 @rsdlt @AhmedThahir @gillyspy @ryanfeeley @g-berthiaume @dwhelan @rghvdberg @laoyaoer @avijit1258 @anchal0997 @Roderick-Jonsson

I could tag more if I knew how to request all issue_interaction_users (made-up property) from github-api.

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