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| Newsgroups | comp.lang.javascript |
| Date | Sat, 12 Oct 2019 15:50:18 -0700 (PDT) |
| In-Reply-To | <qnrejc$8o4$1@dont-email.me> |
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| Subject | Re: Problem drawing lines on a canvas element |
| From | dr.j.r.stockton@gmail.com |
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On Saturday, 12 October 2019 03:42:59 UTC+1, Alan wrote:
> Your code seems to work fine for me. Please provide the actual,
> problematic Sinuous() calls you are using.
>
> (I only read newsgroups once in the evening, so feel free to continue
> this discussion via email for a more prompt response.)
Ah, but when is the evening? ... Ah, I see that you are four hours behind GMT.
I reduced the code by throwing out, piece by piece, all that seemed irrelevant, and reached, after initialising code, what follows :-
Sinuous("blue", [550,650], [400,])
if (F.GG.checked) {
CX.beginPath() // <--- That was absent. OK now.
CX.strokeStyle = "red"
CX.moveTo(10, 300)
CX.lineTo(470, 300)
CX.stroke() }
IMHO, there should be an endPath method (which sets the Path to ReadOnly) which a programmer could use to defend against this error, but I've not yet seen one.
Thanks again.
--
(c) John Stockton, near London, UK. Using Google Groups. |
Mail: J.R.""""""""@physics.org - or as Reply-To, if any. |
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Re: Problem drawing lines on a canvas element Alan <araskin@gmail.com> - 2019-10-08 21:46 -0400
Re: Problem drawing lines on a canvas element dr.j.r.stockton@gmail.com - 2019-10-09 02:25 -0700
Re: Problem drawing lines on a canvas element dr.j.r.stockton@gmail.com - 2019-10-11 15:41 -0700
Re: Problem drawing lines on a canvas element Alan <araskin@gmail.com> - 2019-10-11 22:44 -0400
Re: Problem drawing lines on a canvas element dr.j.r.stockton@gmail.com - 2019-10-12 15:50 -0700
Re: Problem drawing lines on a canvas element "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2019-10-12 20:36 -0700
Re: Problem drawing lines on a canvas element luserdroog <luser.droog@gmail.com> - 2019-10-12 22:14 -0700
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