diff options
Diffstat (limited to 'metapost/context/base/mpiv/mp-lmtx.mpxl')
| -rw-r--r-- | metapost/context/base/mpiv/mp-lmtx.mpxl | 277 |
1 files changed, 275 insertions, 2 deletions
diff --git a/metapost/context/base/mpiv/mp-lmtx.mpxl b/metapost/context/base/mpiv/mp-lmtx.mpxl index 42aa54f9f..070440916 100644 --- a/metapost/context/base/mpiv/mp-lmtx.mpxl +++ b/metapost/context/base/mpiv/mp-lmtx.mpxl @@ -531,8 +531,281 @@ vardef lmt_connected(text t) = save p ; path p ; p := origin t ; subpath (1,length(p)) of p -enddef; +enddef ; def lmt_connection expr t = -- t -enddef; +enddef ; + +% also + +presetparameters "path" [ + labels = false, + controls = false, + points = false, + path = origin +] ; + +def lmt_path = applyparameters "path" "lmt_do_path" enddef ; + +vardef lmt_do_path = + image ( + pushparameters "path" ; + save p ; path p ; p := getparameter "path" ; + drawpath p ; + if getparameter "points" : + drawpoints p ; + if getparameter "labels" : + drawpointlabels p ; + fi ; + fi ; + if getparameter "controls" : + drawcontrolpoints p ; + drawcontrollines p ; + fi ; + popparameters ; + ) +enddef ; + +% more + +presetparameters "function" [ + sx = 1mm, + sy = 1mm, + offset = 0, + xmin = 1, + xmax = 1, + xstep = 1, + xsmall = 1, + xlarge = 1, + xlabels = "no", + xticks = "bottom", % top bottom middle + xcaption = "", + ymin = 1, + ymax = 1, + ystep = 1, + ysmall = 1, + ylarge = 1, + ylabels = "no", + yticks = "left", % left right middle + ycaption = "", + code = "", + close = false, + shape = "curve", + fillcolor = "", + drawsize = 1, + drawcolor = "", + frame = "", % yes ticks + linewidth = .05mm, + pointsymbol = "", + pointsize = 2, + pointcolor = "" +] ; + +def lmt_function = applyparameters "function" "lmt_do_function" enddef ; + +vardef lmt_do_function_p(expr xmin, xmax, xstep, code, shape, close, fcolor, dsize, dcolor, psymbol, psize, pcolor) = + save p, q ; path p, q ; + p := lua.mp.lmt_function_x(xmin,xmax,xstep,code,shape) ; + if close : + q := (xmin,0) -- p -- (xmax,0) -- cycle ; + fill q withcolor fcolor ; + else : + draw p withpen currentpen scaled dsize withcolor dcolor + ; + fi ; + if psize > 0 : + if psymbol = "dot" : + draw image ( + for i = 0 upto length(p) : + draw point i of p ; + endfor ; + ) withpen currentpen scaled psize withcolor pcolor ; + fi ; + fi ; +enddef ; + +vardef lmt_do_function = + image ( + pushparameters "function" ; + save sx, sy, lw, tl, tr, ts, tt, currentpen ; transform tr, tt ; pen currentpen ; + sx := getparameter "sx" ; + sy := getparameter "sy" ; + lw := getparameter "linewidth" ; + tl := 1/20 ; % tick length + ts := 1/10 ; % text scale + tr := identity xyscaled(10/sx,10/sy) ; + tt := identity xyscaled(ts/sx,ts/sy) ; + pickup pencircle xyscaled(lw/sx,lw/sy) ; + draw image ( + save xmin, xmax, xstep, xsmall, xlarge, ymin, ymax, ystep, ysmall, ylarge ; + save code, option, txl, txs, tyl, tys ; + string code, option ; + path txl, txs, tyl, tys ; + + xmin := getparameter "xmin" ; + xmax := getparameter "xmax" ; + xstep := getparameter "xstep" ; + xsmall := getparameter "xsmall" ; + xlarge := getparameter "xlarge" ; + ymin := getparameter "ymin" ; + ymax := getparameter "ymax" ; + ystep := getparameter "ystep" ; + ysmall := getparameter "ysmall" ; + ylarge := getparameter "ylarge" ; + code := getparameter "code" ; + + if (getparametercount "functions") > 0 : + for s = 1 upto getparametercount "functions" : + pushparameters "functions" s ; + lmt_do_function_p ( + getparameterdefault "xmin", + getparameterdefault "xmax", + getparameterdefault "xstep", + getparameterdefault "code", + getparameterdefault "shape", + getparameterdefault "close", + getparameterdefault "fillcolor", + getparameterdefault "drawsize", + getparameterdefault "drawcolor", + getparameterdefault "pointsymbol", + getparameterdefault "pointsize", + getparameterdefault "pointcolor" + ) ; + popparameters ; + endfor ; + elseif code <> "" : + lmt_do_function_p ( + getparameter "xmin", + getparameter "xmax", + getparameter "xstep", + getparameter "code", + getparameter "shape", + getparameter "close", + getparameter "fillcolor", + getparameter "drawsize", + getparameter "drawcolor", + getparameter "pointsymbol", + getparameter "pointsize", + getparameter "pointcolor" + ) ; + fi ; + + option := getparameter "xticks" ; + if option = "top" : + txs := (0,0) -- (0,tl) ; + elseif option = "bottom" : + txs := (0,-tl) -- (0,0) ; + else : + txs := (0,-tl) -- (0,tl) ; + fi ; + + option := getparameter "yticks" ; + if option = "left" : + tys := (-tl,0) -- (0,0) ; + elseif option = "right" : + tys := (0,0) -- (tl,0) ; + else : + tys := (-tl,0) -- (tl,0) ; + fi ; + + txs := txs transformed tr ; + tys := tys transformed tr ; + txl := txs scaled 2 ; + tyl := tys scaled 2 ; + + draw (xmin,0) -- (xmax,0) ; + draw (0,ymin) -- (0,ymax) ; + + option := getparameter "frame" ; + if option = "yes" : + draw (xmin,ymin) -- (xmax,ymin) -- (xmax,ymax) -- (xmin,ymax) -- cycle ; + elseif (option = "ticks") or (option = "sticks") : + draw (xmin,ymin) -- (xmax,ymin) -- (xmax,ymax) -- (xmin,ymax) -- cycle ; + if xsmall > 1 : + txs := ((0,0) -- (0,tl)) if option = "sticks" : rotated 180 fi ; + txs := txs transformed tr ; + for i = xmin step ((xmax-xmin)/xsmall) until xmax : + draw txs shifted (i,ymin); + endfor ; + txs := (0,0) -- (0,-tl) if option = "sticks" : rotated 180 fi ; + txs := txs transformed tr ; + for i = xmin step ((xmax-xmin)/xsmall) until xmax : + draw txs shifted (i,ymax); + endfor ; + fi ; + if ysmall > 1 : + tys := (0,0) -- (tl,0) if option = "sticks" : rotated 180 fi ; + tys := tys transformed tr ; + for i = ymin step ((ymax-ymin)/ysmall) until ymax : + draw tys shifted (xmin,i); + endfor ; + tys := (0,0) -- (-tl,0) if option = "sticks" : rotated 180 fi ; + tys := tys transformed tr ; + for i = ymin step ((ymax-ymin)/ysmall) until ymax : + draw tys shifted (xmax,i); + endfor ; + fi ; + fi ; + + if xsmall > 1 : + for i = xmin step ((xmax-xmin)/xsmall) until xmax : + draw txs shifted (i,0) ; + endfor ; + fi ; + + if xlarge > 1 : + option := getparameter "xlabels" ; + for i = xmin step ((xmax-xmin)/xlarge) until xmax : + draw txl shifted (i,0) ; + if (option <> "no") and (i <> 0) : + if (option <> "nolimits") or ((i > xmin) and (i < xmax)) : + draw textext.bot(decimal i) transformed tt + shifted (i,1.25*(ypart point 0 of txl)) ; + fi ; + fi ; + endfor ; + fi ; + + if ysmall > 1 : + for i = ymin step ((ymax-ymin)/ysmall) until ymax : + draw tys shifted (0,i) ; + endfor ; + fi ; + + if ylarge > 1 : + option := getparameter "ylabels" ; + for i = ymin step ((ymax-ymin)/ylarge) until ymax : + draw tyl shifted (0,i) ; + if (option <> "no") and (i <> 0) : + if (option <> "nolimits") or ((i > ymin) and (i < ymax)) : + draw textext.lft(decimal i) transformed tt + shifted (1.25*(xpart point 0 of tyl),i) ; + fi ; + fi ; + endfor ; + fi ; + + option := getparameter "xcaption" ; + if (option <> "") : + draw textext.bot(option) transformed tt + shifted center bottomboundary currentpicture ; + fi ; + + option := getparameter "ycaption" ; + if (option <> "") : + draw textext.lft(option) transformed tt + shifted center leftboundary currentpicture ; + fi ; + ) + + xyscaled(sx,sy) ; + + setbounds currentpicture to + boundingbox currentpicture + enlarged (getparameter "offset") ; + + popparameters ; + ) +enddef ; + |