Hi Hans, One MetaPost feature that I was looking forward to is the ability to create a fill between two shapes. Something like a difference function of two path's.
For logos I use the workaround with creating a path alongside the excluded areas but it is always cumbersome. I have briefly mentioned it back here: https://mailman.ntg.nl/pipermail/ntg-context/2011/056910.html Just for illustration purposes, if I wanted to fill the area in between two circles: *path p ; **p := fullcircle scaled 1cm ; **path q ; **q := fullcircle scaled .5cm ; * Instead of creating a new path along both circles with: *r := p -- reverse q -- cycle ;* It would be nice to have something like: *fill p excluding q ;* or something like that. I mainly have use-cases for differences in shapes, but filling the intersection of two shapes would be the same idea. Thanks, Adam On Wed, Aug 14, 2019 at 10:57 AM Hans Hagen <j.ha...@xs4all.nl> wrote: > Hi, > > In the process of providing an additional (more abstract) interface to > some of the old and also new MetaFun code we wonder what kind of > features users would like to see. > > http://www.pragma-ade.com/general/magazines/mag-1104-mkiv.pdf > > As a teaser I uploaded a MyWay document that shows some of what is > coming. All is experimental but it shows the direction. We're talking > ConTeXt LMTX here. For instance, > > draw lmt_outline [ > content = "hello", > kind = "reverse", > fillcolor = "darkred", > drawcolor = "darkblue", > rulethickness = 1/2, > ] ysized h shifted (3.75h,-1.25h) ; > > Wraps all the outline drawing in one macro with a set of options (there > will be xml interface definitions for that). Or take: > > draw lmt_followtext [ > content = "How well does it work {\bf 1}! ", > path = (fullcircle scaled 4cm), > trace = true, > spread = true, > ] ysized 5cm ; > > which is an easier interface to text along a curve. Arrows can be drawn > with > > draw lmt_arrow [ > kind = "draw", > location = "middle", > alternative = "curved", > path = fullcircle > scaled 3cm > shifted (3.5cm,0cm), > ] withcolor "darkblue" ; > > but of course the low level interface with its many variables for > tweaking stays around. Other examples are shown in the mentioned document. > > So the question is: What do you miss in metapost support? Of course it > should fit within the concept, so 'artistic freehand drawings' is not > something that is likely to get interfaced. We are particularly > interested in educational applications, if only because ConTeXt started > out that way. > > Hans > > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to > the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : http://contextgarden.net > > ___________________________________________________________________________________ >
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
