Suggestions for venn

The following packages have something in common with the package venn. The packages are ordered in decreasing similarity.

Package pst-venn: A PSTricks package for drawing Venn sets
Package mptrees: Probability trees with METAPOST
Package blockdraw_mp: Block diagrams and bond graphs, with METAPOST
Package makecirc: A METAPOST library for drawing electrical circuit diagrams
Package mpkiviat: METAPOST package to draw Kiviat diagrams
Package mp-neuralnetwork: Drawing artificial neural networks with METAPOST and METAOBJ
Package expressg: Diagrams consisting of boxes, lines, and annotations
Package shapes: Draw polygons, reentrant stars, and fractions in circles with METAPOST
Package tableauvariations: Variation tables in METAPOST
Package mp-geom2d: Flat geometry with METAPOST
Package repere: METAPOST macros for secondary school mathematics teachers
Package interpol: Add interpolation to METAPOST graph package
Package cmarrows: METAPOST arrows and braces in the Computer Modern style
Package exteps: Include EPS figures in METAPOST
Package epsincl: Include EPS in METAPOST figures
Package featpost: METAPOST macros for 3D
Package hatching: METAPOST macros for hatching interior of closed paths
Package latexmp: Interface for LaTeX-based typesetting in METAPOST
Package metapost-matlab: METAPOST data plotting in Matlab style
Package mpattern: Patterns in METAPOST
Package splines: METAPOST macros for drawing cubic spline interpolants
Package textpath: Setting text along a path with METAPOST
Package txp: Draw text along a path
Package threeddice: Create images of dice with one, two, or three faces showing, using METAPOST
Package bpolynomial: Drawing polynomial functions of up to order 3
Package metaobj: METAPOST package providing high-level objects
Package metapost-colorbrewer: An implementation of the colorbrewer2.org colours for METAPOST
Package commutative-diagrams: CoDi: Commutative Diagrams for TeX
Package causets: Draw causal set (Hasse) diagrams
Package automata: Finite state machines, graphs and trees in METAPOST
Package dviincl: Include a DVI page into METAPOST output