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Crop to fit - Image resizing (2.4)
31 August 2012 at 2:32am
Hi,
I'm looking for a way to scale an image proportionally, filling a given width and height.
Scaling can not get smaller than the dimensions given.
After downscaling the image, i wont it cropped from center, so the dimension that goes beyond the given size is cropped away.
See explanation and PHP code here: http://911-need-code-help.blogspot.dk/2009/04/crop-to-fit-image-using-aspphp.htmlMy question is, can someone show me how to implement the above in SilverStripe, i think it should be done using a class that extends DataObjectDecorator, so it can be easily moved between projects.
Example found on the forums using DataObjectDecorator:
http://www.silverstripe.org/template-questions/show/16398#post301340class CustomImage extends DataObjectDecorator {
function Optimised($width, $height) {
return $this->owner->getFormattedImage('Optimised', $width, $height);
}
function generateOptimised(GD $gd, $width, $height) {
$gd->setQuality(70);
return $gd->croppedResize($width, $height);
}
}Thank you!
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Re: Crop to fit - Image resizing (2.4)
31 August 2012 at 3:22am
Hi,
I am not sure if this helps but I use the following to crop from the center when returning a cropped image in one of my functions.
// ----
// Gets the content of the image at that ID and crops it
// ----
$image=DataObject::get_by_id("Image",$id);
return $image->CroppedImage(213,200); -
Re: Crop to fit - Image resizing (2.4)
3 September 2012 at 11:50pm
Thank you for your answer ssimples.
It's actually possible to do what i want, with the function:
$image->croppedResize(width,height) // Crops the image from the centre, to given values.However i don't know how to call that function directly from template, so i just used the code found here:
http://www.silverstripe.org/template-questions/show/16398#post301340Works perfect and now i can easily add extensions if i should need that.
--
Thomas B. Nielsen
Nobrainer Web -
Re: Crop to fit - Image resizing (2.4)
4 September 2012 at 1:35am
You don't need a extension. Just call in the template;
$Image.CroppedImage(150,200)
...or...
<% control Image %>
<img src="$CroppedImage(150,200).Filename" width="150" height="200" />
<% end_control %> -
Re: Crop to fit - Image resizing (2.4)
28 September 2012 at 8:31am
You are so right Devlin - ofcourse it's that simple
Wondering why i did not see that, maybe i just misunderstood the documentation.But nice that the function is ther, thank you.
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