Re: [artworks] New arrowheads

  • From: "Andrew Conroy" <a.m.conroy@xxxxxxxxxxxxx>
  • To: artworks@xxxxxxxxxxxxx
  • Date: Fri, 5 May 2006 15:01:48 +0100 (BST)

On Fri, May 5, 2006 2:27 pm, Martin Wuerthner wrote:
> In message <347f3a224e.eddie@xxxxxxxxxxxxxxxxxxxxxxxxx>
>           Eddie Lord <riscos@xxxxxxxxxxxxxxxxxxx> wrote:
>> Can we have one that ends in an open circle please?
>>  i.e.   o----------o
> Thanks for reminding me. Sounds like a good idea. You got it. ;-)
> I will probably do a new filled circle arrowhead, too. The "blob"
> arrowhead that we have is very ugly - it is not a proper circle.

Hence my suggestion for a circle/dot too.

> With both the filled and unfilled circles, there remains one question,
> however: Where exactly should they be positioned with respect to the
> line anchor point? It is clear for the old non-integrated arrows - the
> arrowhead starts at the line end, i.e., where the anchor point is. In
> the integrated case, the tip of the arrow is placed on the anchor
> point, but what exactly is the tip of such an arrow? One could argue
> that it is the centre of the blob or the open circle. This would allow
> you to position the centre using the anchor point, which is useful if
> you want to use the filled circle arrowhead to label something.
> Similarly, if you use the open circle arrowhead to denote an open
> interval in a graph, then you will want to position the centre of the
> circle. So, I think this is how it should work.

Certainly I envisaged it being centred on the end of the line.

Thanks for all your work on this, it is certainly appreciated here.

Andrew Conroy
(via Webmail)

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