Can iRev get the dimensions of an image?
Sivakatirswami
katir at hindu.org
Sat Nov 14 20:11:48 EST 2009
can the iRev engine get the dimension in width and height of an image
file on the web server?
The challenge being: if you want to deliver a slide show where images
are constrained to e.g. 700 px, but that constraint could be either by
height or by width and you will have x number of images in landscape
format and x number in vertical format, but you won't know in advance
and that metadata is not stored elsewhere.... you just want to do
something like
set the defaultFolder to
"/home/my-domain/public_html/slideshows/amazing-images/
put the files into tFiles
repeat for each line tImage in tFiles
# now before we present anything we need to get the
# width and height here, this is fanciful code,
# but you get the idea:
get the height of image (url ("binfile:" & the defaultFolder & tImage)
If it 700 then
## we output a small chunk with CSS that change the orientation of
the area on the web page to handle a tall photo.
else
## we output a small chunk with CSS that change the orientation of
the area on the web page to handle a wide photo.
end if
We have image Magick installed, if that helps.
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