if not modules then modules = { } end modules ['meta-fun'] = { version = 1.001, comment = "companion to meta-fun.mkiv", author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", copyright = "PRAGMA ADE / ConTeXt Development Team", license = "see context related readme files", } -- very experimental, actually a joke ... see metafun manual for usage local format, load, type = string.format, load, type local context = context local metapost = metapost local metafun = metapost.metafun or { } metapost.metafun = metafun function metafun.topath(t,connector) context("(") if #t > 0 then if not connector then connector = ".." end for i=1,#t do if i > 1 then context(connector) end local ti = t[i] if type(ti) == "string" then context(ti) else context("(%F,%F)",ti.x or ti[1] or 0,ti.y or ti[2] or 0) end end else context("origin") end context(")") end function metafun.interpolate(f,b,e,s,c) local done = false context("(") local d = load(format("return function(x) return %s end",f)) if d then d = d() if not c then c = "..." end for i=b,e,(e-b)/s do if done then context(c) else done = true end context("(%F,%F)",i,d(i)) end end if not done then context("origin") end context(")") end