Comments for CanvasPaint blog http://canvaspaint.org/blog Sat, 31 Jul 2010 13:45:39 +0000 http://wordpress.org/?v=2.5.1 Comment on Saving canvas images with PHP by Jon http://canvaspaint.org/blog/2007/01/saving-images/#comment-48423 Jon Tue, 08 Jun 2010 14:25:28 +0000 http://canvaspaint.org/blog/2007/01/saving-images/#comment-48423 Hi, Don't know if this blog is updated, but can anyone show me how to save the image to the server in c# or translate the php to c#? $dataurl = str_replace(" ", "+", $_POST["u"]); $data = substr($dataurl, strpos($dataurl, “,”)); $file = fopen(”image.png”, “wb”); fwrite($file, base64_decode($data)); fclose($file); Hi,

Don’t know if this blog is updated, but can anyone show me how to save the image to the server in c# or translate the php to c#?

$dataurl = str_replace(” “, “+”, $_POST["u"]);
$data = substr($dataurl, strpos($dataurl, “,”));

$file = fopen(”image.png”, “wb”);
fwrite($file, base64_decode($data));
fclose($file);

]]> Comment on Rendering text with <canvas> by Lars http://canvaspaint.org/blog/2006/12/rendering-text/#comment-47603 Lars Tue, 20 Apr 2010 22:25:51 +0000 http://canvaspaint.org/blog/2006/12/rendering-text/#comment-47603 I'm a bit late to this party, but... what about fillText() in HTML 5? https://developer.mozilla.org/en/Drawing_text_using_a_canvas#fillText%28%29 The above URL says fillText() is part of the HTML 5 standard (which your "canvas spec" link above now links to). Not sure if using HTML 5 fits your goals for CanvasPaint. I’m a bit late to this party, but… what about fillText() in HTML 5? https://developer.mozilla.org/en/Drawing_text_using_a_canvas#fillText%28%29

The above URL says fillText() is part of the HTML 5 standard (which your “canvas spec” link above now links to).

Not sure if using HTML 5 fits your goals for CanvasPaint.

]]> Comment on Saving canvas images with PHP by Sako http://canvaspaint.org/blog/2007/01/saving-images/#comment-47260 Sako Sat, 27 Mar 2010 16:15:17 +0000 http://canvaspaint.org/blog/2007/01/saving-images/#comment-47260 Hi, I'm having a problem. I was using imagecreatefromstring on the php side, to create an image resource for thumbnailing/saving it. Writing directly to a PNG is way better because imagecreatefromstring is slow. But I'm still having a problem when the posted image dataurl is too long. 640x480 images are posted correctly, 854x480 images result in a 0-byte PNG file. Any idea? Hi,

I’m having a problem.
I was using imagecreatefromstring on the php side, to create an image resource for thumbnailing/saving it. Writing directly to a PNG is way better because imagecreatefromstring is slow.
But I’m still having a problem when the posted image dataurl is too long. 640×480 images are posted correctly, 854×480 images result in a 0-byte PNG file.
Any idea?

]]> Comment on Drawing an ellipse on <canvas> by Nate http://canvaspaint.org/blog/2006/12/ellipse/#comment-45919 Nate Wed, 27 Jan 2010 22:21:18 +0000 http://canvaspaint.org/blog/2006/12/ellipse/#comment-45919 You'll probably have better luck with: // Move and scale the canvas, then draw a unit circle at the origin trg.save(); trg.save(); trg.translate(x, y); trg.scale(rx, ry); trg.arc(0, 0, 1, 0, 2*Math.PI, false); trg.restore(); // restore so stroke() isn't scaled trg.fill(); trg.stroke(); trg.restore(); // put the canvas back the way it was You’ll probably have better luck with:

// Move and scale the canvas, then draw a unit circle at the origin
trg.save();
trg.save();
trg.translate(x, y);
trg.scale(rx, ry);
trg.arc(0, 0, 1, 0, 2*Math.PI, false);
trg.restore(); // restore so stroke() isn’t scaled
trg.fill();
trg.stroke();
trg.restore(); // put the canvas back the way it was

]]> Comment on Code released into public domain by Noah http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-44934 Noah Thu, 10 Dec 2009 06:12:30 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-44934 Just thought I'd drop by to say thanks for the code. I used it in my senior capstone project to develop a collaborative drawing gadget for Google Wave. It's still in a very alpha state, but you can have a look for yourself if you like. https://code.google.com/p/sketchpad-for-wave/ Just thought I’d drop by to say thanks for the code. I used it in my senior capstone project to develop a collaborative drawing gadget for Google Wave. It’s still in a very alpha state, but you can have a look for yourself if you like.

https://code.google.com/p/sketchpad-for-wave/

]]> Comment on Code released into public domain by Noah http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-43123 Noah Tue, 13 Oct 2009 15:22:00 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-43123 High five for public domain! This will put me leaps and bounds towards completing my senior capstone project at implementing a collaborative drawing gadget for Google Wave. I'll leave another comment with the results in December. High five for public domain! This will put me leaps and bounds towards completing my senior capstone project at implementing a collaborative drawing gadget for Google Wave. I’ll leave another comment with the results in December.

]]> Comment on Code released into public domain by » Paint Online | Informática Práctica | http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-43044 » Paint Online | Informática Práctica | Wed, 07 Oct 2009 05:33:14 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-43044 [...] gracia de CanvasPaint es que además es libre (de dominio público) la librería [...] [...] gracia de CanvasPaint es que además es libre (de dominio público) la librería [...]

]]> Comment on Code released into public domain by atomic1fire http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42787 atomic1fire Wed, 23 Sep 2009 01:29:24 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42787 Too bad he isn't still working on it, Google Chrome Frame for internet explorer was just released, I just tried it on canvas paint, and it somewhat works in IE install the plugin and type cf:http://canvaspaint.org/ Too bad he isn’t still working on it,
Google Chrome Frame for internet explorer was just released,
I just tried it on canvas paint, and it somewhat works in IE
install the plugin and type cf:http://canvaspaint.org/

]]> Comment on Code released into public domain by aries http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42188 aries Fri, 28 Aug 2009 01:07:07 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42188 Thank you very much sir, i already received the files i needed. Its a really big help! Thanks bro, God bless!! ~_~ Thank you very much sir, i already received the files i needed.
Its a really big help!

Thanks bro, God bless!! ~_~

]]> Comment on Code released into public domain by aries http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42171 aries Thu, 27 Aug 2009 08:01:06 +0000 http://canvaspaint.org/blog/2008/02/code-released-into-public-domain/#comment-42171 What a great job, im quite impressed by your work. But im having problems with the open.php and save.php,i dont know what will be the codes for that. i couldnt get it right.. I already send you an email, and hope that you could help me with this. I really need to make it. Please forgive me cause im still a beginner with these things, i know i still need a lot to learn. Thanks What a great job, im quite impressed by your work.

But im having problems with the open.php and save.php,i dont know what will be the codes for that.
i couldnt get it right.. I already send you an email, and hope that you could help me with this. I really need to make it.

Please forgive me cause im still a beginner with these things, i know i still need a lot to learn.
Thanks

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