how to set height only when resizing using ImageMagick

Question

The following code resizes an image so that its width is 200 and its height is whatever... How would I do it so that the height was 200 and the width was whatever...

$command = MAGICK_PATH."convert ".$filename." -resize 200 ".$filename; exec($command);

Kind regards J

Answer 1

The manual has a complete overview over resizing options.

You are looking for

xheight Height given, width automagically selected to preserve aspect ratio.