[metapost] straight lines vs. curves (SVG)

[Taco Hoekwater]

Hi,

Boguslaw Jackowski wrote:
> 
> Hi,
> 
> this topic was already discussed on here a few years ago,
> but I thought that recalling some remarks would be in place.
> 
> To me, it seems convenient to represent a line segment from A to B as:
> 
>    A .. controls A and B .. B
> 
> It is easy to check the property of being a line, no additional
> flags are needed etc. The only problem is with the direction in nodes;

On the C implementation side, it is much easier&faster to check for
a straightness flag in the knot node than to check the control point
locations, so it is almost certain that the executable would not use
the pre- and postcontrol points at all for straight segments.


Best wishes,
Taco