Rotate an image in clockwise & Anti Clockwise direction
I have used http://raphaeljs.com/image-rot开发者_运维技巧ation.html raphel's script but. How how can v save this rotated image.
It's an SVG, not really an image per-se.
You'll have to save the generated SVG via AJAX onto your server and render it with an external SVG-rendering library.
You could try librsvg2-bin
, as I've heard that it works.
As mentioned it's an SVG element and it uses a source image to change it's angle upon clicking the rotate buttons. By inspecting the rotated image you'll see the SVG element like:
<image x="160" y="120" width="320" height="240" preserveAspectRatio="none" href="http://raphaeljs.com/bd.jpg" transform="rotate(-90, 320, 240)"/>
You'll notice that there's a tranform
attribute that contains the rotate(angle, x, y)
function. If you can find a way to get that angle value you can use it to manipulate the image source to generate a new image using PHP by using the imagerotate function.
By doing this I got the transform
attribute value:
document.getElementById('holder').getElementsByTagName('image')[0].getAttribute('transform')
This returns "rotate(-90, 320, 240)"
Of course this is a hack ;p
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