[RESOLVED] resize image with constant width

[slick101]

Hi everyone.

Im having some trouble where I want to keep the specified width of an image that I supply when creating a new thumbnail.

The width i need all my photos to be is 246px . So what I need to do is try figure out what the height would be. Im not really sure on the math for it?

I know all the images will be different height but i will then crop the image to 218px

Does anyone know of the formula ? I bet its something easy too....

THanks for the help

[dagon]

something like

		$origw= imagesx($src_img);
		$origh= imagesy($src_img);

		$maxh= 999;
		$maxw= 246;


	if($origh > $maxh || $origw > $maxw){
		$ratio_orig= $origw / $origh;

		if($maxw / $maxh > $ratio_orig){
			$neww= $maxh * $ratio_orig;
			$newh= $maxh;
		}else{
			$newh= $maxw / $ratio_orig;
			$neww=$maxw;
		}
	}else{
		$newh= $origh;
		$neww= $origw;
	}

[slick101]

dagon;10925369 wrote:

something like

		$origw= imagesx($src_img);
		$origh= imagesy($src_img);

		$maxh= 999;
		$maxw= 246;


	if($origh > $maxh || $origw > $maxw){
		$ratio_orig= $origw / $origh;

		if($maxw / $maxh > $ratio_orig){
			$neww= $maxh * $ratio_orig;
			$newh= $maxh;
		}else{
			$newh= $maxw / $ratio_orig;
			$neww=$maxw;
		}
	}else{
		$newh= $origh;
		$neww= $origw;
	}

Thanks dagon!