On Sat, Aug 29, 2020 at 5:37 PM Robert Lang <rob...@langorigami.com> wrote:
> Thus spake "Origami on behalf of Jorge E. Jaramillo" < > origami-boun...@lists.digitalorigami.com on behalf of odrau...@gmail.com> > on 8/29/20, 5:33 PM: > > > > Hi, > > > > In Robert Lang's article about diagramming conventions that can be read at > his webpage www.langorigami.com next to Figure 4, it reads "Crease lines > should not contact the edges that the creases end upon. They do touch edges > that they go under". Does anyone know a justification for this? I find it > odd that creases should not be shown in their full extent. > > > > The practice dates from the pen-and-ink days and low-res reproduction, > where there was not much visual distinction between crease lines and folded > edges. Leaving gaps at the end of crease lines makes clearer the > distinction between a crease and a folded edge. It’s less necessary now > that high-res displays and high-res printing can display clear distinction > between (say) a 0.25pt crease line and a 1.0pt edge line. > > > > Robert > -------------------------------- I still make my diagrams by hand (or else make Step Photos), using a Medium and a Fine art marker. For an existing crease, to distinguish it from the fold you are being told to make (and edges & outlines), I use the Fine marker and draw lightly, so it skips now and then. Never thought of ending the line short of the edge. Hmmm... And I obviously haven't read Robert Lang's diagramming conventions. Need to do that. ..... from Chila /// ---------------------------------------------------------- end
