I'm drawing curves on a canvas. And then redrawing, re-redrawing, ...
Are there any tools that could help me draw in something more graphic
than the eight arguments of the Bezier curve?
11  1685 
No answers. I'll take that for "no". Guess I'll have to write one.
Ma************@ gmail.com wrote.
No answers.
It is Thursday/Friday. Some people here do have a job IRL.
Please learn to quote, and get a real name.
PointedEars
--
var bugRiddenCrashP ronePieceOfJunk = (
navigator.userA gent.indexOf('M SIE 5') != -1
&& navigator.userA gent.indexOf('M ac') != -1
) // Plone, register_functi on.js:16
MartinRineh...@ gmail.com wrote:
I'm drawing curves on a canvas. And then redrawing, re-redrawing, ...
Are there any tools that could help me draw in something more graphic
than the eight arguments of the Bezier curve?
There was a recent thread in this group which covered various possible
approaches: http://groups.google.com/group/comp....556e6d8dbd61c/
Hope this helps,
--
Bart
Bart Van der Donck wrote:
MartinRineh...@ gmail.com wrote:
>I'm drawing curves on a canvas. And then redrawing, re-redrawing, ...
Are there any tools that could help me draw in something more graphic
than the eight arguments of the Bezier curve?
There was a recent thread in this group which covered various possible
approaches:
http://groups.google.com/group/comp....556e6d8dbd61c/
>
Hope this helps,
Thanks, it is fun to see http://www.walterzorn.com/jsgraphics...tm#performance
and his homepage with selfmade carbonfiber bike... a really admirable guy.
Thanks Bart, but not the ticket. I'm using the <canvastag, which
works well per w3c pre-standard in Firefox, Opera, Safari and
Konqueror. Pretty good 2D drawing capability. A <canvaspentag on is a
simple matter of creating a five-point path and then reqesting a fill
operation. You could do a slick one with a separate linear gradient
for each point. 10-15 minutes to do it. Replace the straight lines
with Bezier curves - another 5-10 minutes.The problem: maybe half a
day futzing with JavaScript function coords to get one that really
looked good. <canvas>-specific paint program needed.
I don't really care about MSIE-only people (I'm too old to spend any
more time working around those bugs). There is a Google plug-in that
enables <canvasin MSIE. (Isn't DLing a decent browser easier?)
Zorn's stuff IS VERY cool. If you missed his drag-n-drop, go back and
take a look.
Pointed Ears: Full last name is Rinehart. You could try Google Groups
and click "view profile".
Ma************@ gmail.com wrote:
Zorn's stuff IS VERY cool.
It might look cool in a few browsers, but on a closer look it is among the
worst script code I/we have ever seen here. We have even discussed the
flaws of it shortly (ago).
Pointed Ears:
It is spelled differently, you know.
Full last name is Rinehart. You could try Google Groups
and click "view profile".
Or you could stop acting like a googlodyte, click "Subscribe to this group"
and simply have your From header say so. (I have mentioned that before.)
PointedEars
--
var bugRiddenCrashP ronePieceOfJunk = (
navigator.userA gent.indexOf('M SIE 5') != -1
&& navigator.userA gent.indexOf('M ac') != -1
) // Plone, register_functi on.js:16
Thomas 'PointedEars' Lahn wrote:
Pointed Ears:
It is spelled differently, you know.
Sorry, PointedEars. I've subscribed to other groups and gone back to
Google. If you know of a better, please suggest it.
All: The lawn needs mowing. This is a procrastination . Put it in your
non-MSIE browser.
<! pentagon.html - draw a slicked up pentagon>
<! copyright 2008, Martin Rinehart>
<html>
<head>
<titlePentago n! </title>
<script>
function draw() {
cnvs = document.getEle mentById( 'cnvs' );
var pen = cnvs.getContext ('2d');
var rg = pen.createRadia lGradient(
170, 180, 5, 202, 207, 170 );
rg.addColorStop ( 0, '#ffffff' );
rg.addColorStop ( 1, '#0000ff' );
pen.fillStyle = rg;
pen.beginPath() ;
pen.moveTo( 72, 153 );
pen.lineTo( 202, 41 );
pen.lineTo( 330, 153 );
pen.lineTo( 282, 339 );
pen.lineTo( 120, 339 );
pen.fill();
} // end of draw()
</script>
</head>
<body onload=draw()>
<center>
<hr width=80%>
<h1Pentagon with Off-Center Radial Gradient </h1>
<hr width=80%>
<canvas id=cnvs border=0 height=400 width=400>
Sorry. I'm too old to support MSIE.
</canvas>
</center>
</body>
</html>
<! end of pentagon.html> Ma************@ gmail.com a écrit :
Thomas 'PointedEars' Lahn wrote:
>>Pointed Ears:
It is spelled differently, you know.
Oh Yes ! right one is : OreillesPointée s
All: The lawn needs mowing. This is a procrastination . Put it in your
non-MSIE browser.
<! pentagon.html - draw a slicked up pentagon>
<! copyright 2008, Martin Rinehart>
works fine, but ...
that is not a (regular) pentagone.
--
sm
SAM wrote:
works fine, but ...
that is not a (regular) pentagone.
You've sharp eyes. It's a pentagonal approximation.
To skip the math, I found a pentagon in Wikipedia and drew it as an
image in my canvas. Then I wrote lines over it and fiddled them to
cover the Wiki drawing. When they looked fairly pentagonish, I deleted
the image. If you shrink the second circle in the radial gradient, you
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