Hi,
1/ being able to specify every radius for every corner allows you to do
what you have specified below, it doues not work other way... why would
we want to close that path?
2/ try this
http://test.bauglir.com/rr.php
B.
On 21.6.2012 20:02, Igor Trindade Oliveira wrote:
Bronislav,
Give me an use case where we need to specify the x and y radius for
every corner.
Almost all canvas 2d libraries today when drawing rounded rectangles
you need just specify
the corners once and it works pretty well.
Igor
On Thu, Jun 21, 2012 at 10:51 AM, Bronislav Klučka
<bronislav.klu...@bauglir.com> wrote:
Hi,
So why do ve have rect? 4 lines could do it... simple enough...
Canvas is for immediate raster graphics, SVG for retain vector graphics.
The use is a matter of choice, canvas have been used to create controls,
graphs, diagrams... all could use round rect. But I agree, that idea below
is not very well thought out.
If we would go for round rect (RR), we need the obility to create RR paths
and the ability to create each "corner" different - specify x and y radiuses
for every "corner"
Brona.
On 21.6.2012 19:34, David Dailey wrote:
It seems to me that the primary use of rounded rectangles is for UI's
rather
than art, and as such, SVG, that supports DOM and events, already has
syntax
for rounded rectangles. I have seen how the<canvas> folks like to
re-invent
wheels, but the path syntax within canvas already should allow creation of
line arc line arc sequences, and making things too easy would not appeal
to
the<canvas> machismo would it?
How many rounded rectangles have you ever seen that don't invite
mouseclicks? And then do you really want to try to calculate whether or
not
the mouse event is atop one of those thingies, particularly after it has
been rotated, scaled and skewed?
I'm just not seeing why<canvas> would need this.
Regards
David
-----Original Message-----
From: whatwg-boun...@lists.whatwg.org
[mailto:whatwg-boun...@lists.whatwg.org] On Behalf Of Igor Trindade
Oliveira
Sent: Thursday, June 21, 2012 12:59 PM
To: whatwg@lists.whatwg.org
Subject: [whatwg] Canvas roundedRect
Currently, canvas2d does not have support for rounded rectangles and the
web
developers are implementing rounded rectangles using arcs or bezier
curves.[1][2] So i propose the addition of two new functions:
void fillRoundedRect(unrestricted double x, unrestricted double y,
unrestricted double w, unrestricted double h, unrestricted double xRadius,
unrestricted double yRadius); void strokeRoundedRect(unrestricted double
x,
unrestricted double y, unrestricted double w, unrestricted double h,
unrestricted double xRadius, unrestricted double yRadius);
Where the xRadius and yRadius arguments specify the radii of the ellipses
defining the corners of the rounded rectangle.
Additionally, if we know that the path is a rounded rectangle, we can make
optimizations in the graphics libraries reducing the amount of
tesselations.
[1] http://www.scriptol.com/html5/canvas/rounded-rectangle.php
[2]
http://www.supercalifrigginawesome.com/Extending-Canvas-to-Draw-Rounded-Rect
angles
--
s pozdravem
Bronislav Klučka
http://www.bauglir.com<http://www.bauglir.com>
http://www.bauglir.com
bronislav.klu...@bauglir.com<mailto:bronislav.klu...@bauglir.com>
* webové aplikace
* software na zakázku
--
s pozdravem
Bronislav Klučka
http://www.bauglir.com <http://www.bauglir.com>
http://www.bauglir.com
bronislav.klu...@bauglir.com <mailto:bronislav.klu...@bauglir.com>
* webové aplikace
* software na zakázku
