Re: Resize Images in on-rev folder via lc script?

[Alex Tweedly via use-livecode]

Yes, it is possible - here's the relevant section of the .lc file I used 
to use to do it.


(it's from my script-only library that I use on both LCServer and 
desktop/IDE, hence the 'lockscreen's


I would use this by uploading the file (usually to a folder called 
'originals' or something like that), and then resizing to more 
imaginatively named folders such as 'width90' or 'width600' for 
different purposes.


-- image handling and resizing
command setAreaProportional pImageID, pWidth, pHeight
   local tProportionalWidth, tProportionalHeight, tRatio

   put (the formattedWidth of pImageID) / pWidth into tRatio
   put (the formattedHeight of pImageID) / tRatio into tProportionalHeight

   put (the formattedHeight of pImageID) / pHeight into tRatio
   put (the formattedWidth of pImageID) / tRatio into tProportionalWidth

   if tProportionalHeight > pHeight then
  lock screen
  set the width of pImageID to tProportionalWidth
  set the height of pImageID to pHeight
  unlock screen
   else
  lock screen
  set the width of pImageID to pWidth
  set the height of pImageID to tProportionalHeight
  unlock screen
   end if
end setAreaProportional

function resizeImageFile pFile, pOutFile, pMaxWid, pMaxHeight
   local t, tt

   import paint from file pFile
   put the name of the last image into t
   set the name of t to "Im1"

   clone img "Im1"
   set the name of it to "Im2"
   setAreaProportional the long id of img "Im2", pMaxWid, pMaxHeight
   export img "Im2" to file pOutFile as jpeg
   put the result into tt

   delete img "Im2"
   delete img "Im1"

   return empty  -- "Done resize" & ":" & tt & ":" && pFile && pOutfile
end resizeImageFile

-- Alex.


On 12/03/2017 22:29, JOHN PATTEN via use-livecode wrote:

Hi All,

I have a simple html form that uploads images to a directory on the on-rev 
server. The images are uploaded at different resolutions. I would like to have 
the on-rev server resize the width of the images  in that folder when users 
drop them into the server via an html form.

Is it possible using lc scripts on the on-rev server to resize the images? I can do 
the resize easily via a stack using the example here, 
http://lessons.livecode.com/m/4071/l/15018-how-to-proportionally-resize-an-image 

 , but I’m not sure how that could be applied to a folder on the server using .lc 
scripts?

Thank you!
John Patten
SUSD


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Resize Images in on-rev folder via lc script?

[JOHN PATTEN via use-livecode]

Hi All,

I have a simple html form that uploads images to a directory on the on-rev 
server. The images are uploaded at different resolutions. I would like to have 
the on-rev server resize the width of the images  in that folder when users 
drop them into the server via an html form.

Is it possible using lc scripts on the on-rev server to resize the images? I 
can do the resize easily via a stack using the example here, 
http://lessons.livecode.com/m/4071/l/15018-how-to-proportionally-resize-an-image
 

 , but I’m not sure how that could be applied to a folder on the server using 
.lc scripts?

Thank you!
John Patten
SUSD


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