<div dir="ltr">Thanks for the welcome!<div><br></div><div>Right, I know that rounding has to occur eventually but if I extend my line ltk seems to be able to draw an arrow head that looks rotated to a precision greater than the 45 degree increments allowed by a single pixel long line. So I'm wondering if it's possible to get that precision without the long "tail" on the arrow. Googling has turned up <a href="http://www.perlmonks.org/?node_id=800025">this</a> which seems to indicate that my idea would work directly in tk so does ltk perform the rounding earlier?</div><div><br></div><div>Thanks,</div><div>Nate</div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, Oct 4, 2015 at 5:24 AM cage <<a href="mailto:cage@katamail.com">cage@katamail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Fri, Oct 02, 2015 at 08:55:17PM -0400, Nate Chodosh wrote:<br>
> Hello,<br>
<br>
Hello!<br>
<br>
> My name is Nate. I have never participated in one of these lists before so<br>
> I don't know the protocol so I apologize if this isn't the appropriate<br>
> channel.<br>
<br>
No problem! Welcome! :)<br>
<br>
><br>
> I am working on an application where I need arrows on the end of arcs,<br>
> which I am accomplishing by adding very small lines to the end points.<br>
> However I think I have discovered that set-coords when used with an arc<br>
> won't update the position unless the coordinates are integers which makes<br>
> my approach impossible. Is there a workaround for this issue?<br>
<br>
No sure I can see the point here as you did not provided any code but<br>
if you are rendering on the screen, as I guess, you will have to deal<br>
with rounding anyway: if you want to draw at x = 1.5 (for example) you<br>
have to decide which pixel draw (x = 1 or x = 2) as there is "nothing"<br>
between pixel.<br>
<br>
> Thank you,<br>
> Nate<br>
<br>
Bye!<br>
C.<br>
<br>
</blockquote></div>