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+--- Thread: Resize and maintain the golden ratio (3:5)? (/showthread.php?tid=16004)
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]markanderson993[/eluser]
Hello there CodeIgniter experts! I was wondering if there was a way to crop a picture to a 3:5 ratio?
I hope this question was simple!
Thanks in advance for any help!
- Pianoman993
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]TheFuzzy0ne[/eluser]
Code:
function getWidth($height)
{
return ($height / 3) * 5
}Supply the height you want to the function and you'll get the right width back.
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]markanderson993[/eluser]
Thanks for the reply.
What if the picture was say 728px by 800px, would this still be able to crop the photo down to a 3:5 dimension? And if the photo was wider than tall it would appear 3 high and 5 long? (and vice-versa)
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]TheFuzzy0ne[/eluser]
The longest dimension should be used as your master dimension.
If the height is the largest dimension:
Code:
function getWidth($height)
{
return ($height / 3) * 5
}If the width is the largest dimension:
Code:
function getHeight($width)
{
return ($width / 5) * 3
}Just bear in mind that the further the image is away from this ratio, the more image you'll lose when it's cropped.
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]markanderson993[/eluser]
Makes sense to me. Thanks for your help Fuzzy!
Resize and maintain the golden ratio (3:5)? - El Forum - 02-21-2009
[eluser]TheFuzzy0ne[/eluser]
Sorry, I was wrong. You'd need to crop by the smallest dimension. It's 5:32AM and my brain is not working any more.
Code:
function getCropDimensions($width, $height)
{
if ($height < width) // Height is master dim
{
$width = ($height / 3) * 5;
}
else // Otherwise width is master dim
{
$height = ($width / 5) * 3;
}
return array(
'height' => $height,
'width' => $width
);
}