Re: [ cf-dev ] Image manipulation

[Paul fennell]

hehe im sure i said all this :)

----- Original Message ----- 
From: "Robin Griffiths" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 06, 2003 12:02 PM
Subject: Re: [ cf-dev ] Image manipulation


Oh, and you'll need the cf_magicktag from
http://www.alagad.com/index.cfm/name-mtdoc
  ----- Original Message ----- 
  From: Robin Griffiths
  To: [EMAIL PROTECTED]
  Sent: Thursday, November 06, 2003 11:43 AM
  Subject: Re: [ cf-dev ] Image manipulation


  In which case, here's something I just did for a thumbnail upload.
Basically, these have a maximum size below which they are unaltered.  I used
imageMagick for the transformation, but it was a bit overkill for the basic
size check, so I used imageInfo which is much quicker
(http://www.geocities.com/marcoschmidt.geo/image-info.html)

     <!--- User wants to specify a thumbnail file --->
     <cffile action    = "upload"
       fileField   = "thumbfile"
       destination  = "#request.uploadPath#thumbs#request.filesep#"
       nameConflict  = "MakeUnique"
       accept    = "#request.thumbFileMimes#">

     <cfset request.uploadedThumbFilename = cffile.serverFile>

     <!--- Now we use an imported Java class (ImageInfo) to ascertain the
size of the
      uploaded thumb.  The class needs a FileInputStream object to read --->
     <cfset inputstream = CreateObject("Java", "java.io.FileInputStream")>

     <!--- Load the thumbnail file into the input stream --->
     <cfset
inputstream.init("#request.uploadPath#thumbs#request.filesep##request.upload
edThumbFilename#")>

     <!--- Load the ImageInfo class --->
     <cfset imageinfo = CreateObject("Java", "ImageInfo")>

     <!--- Set the ImageInfo's input, which causes it to examine the image
file --->
     <cfset imageinfo.setInput(inputStream)>

     <!--- Check that the image is OK --->
     <cfif imageinfo.check()>
      <cfif imageinfo.getwidth() gt request.maxImageWidth>
       <!--- Image is outside the acceptable width, so we use imageMagick to
resize it.
        Note that the width is the limiting factor, and that the height is
scaled accordingly.--->
       <cf_magicktag inputtype="file"

inputfile="#request.uploadPath#thumbs#request.filesep##request.uploadedThumb
Filename#"
           timeout="100"
           action="convert"
           outputType="file"

outputFile="#request.uploadPath#thumbs#request.filesep##request.uploadedThum
bFilename#">
         <cf_magickaction  action="geometry"
              width="#request.maxImageWidth#"

height="#int(imageinfo.getHeight()*(request.maxImageWidth/imageinfo.getWidth
()))#">
       </cf_magicktag>
      </cfif>
     <cfelse>
      <!--- Image failed imageinfo check - that's bad, so abort. --->
      <cflocation
url="#request.self#?fuseaction=#fusebox.circuit#.error&errorindex=2"
addtoken="No">
     </cfif>
    </cfif>

  HTH
  R
    ----- Original Message ----- 
    From: Adam Reynolds
    To: [EMAIL PROTECTED]
    Sent: Thursday, November 06, 2003 11:29 AM
    Subject: RE: [ cf-dev ] Image manipulation


    6.1 under win2003.

    ImageMagick is looking interesting.

    > -----Original Message-----
    > From: Stephen Moretti [mailto:[EMAIL PROTECTED]
    > Sent: 06 November 2003 11:21
    > To: [EMAIL PROTECTED]
    > Subject: Re: [ cf-dev ] Image manipulation
    >
    >
    > What version of CF and OS??
    >
    > Stephen
    >
    > Adam Reynolds wrote:
    >
    > > Anybody have any example CF code that manipulates image sizes etc.
    > >
    > > I need to resize an image upload to 500 pixels wide, and create
    > a thumbnail
    > > 150 pixels wide.
    > >
    > > Currently I have a client that is loading very big images on to
    > a site, and
    > > want to get sort this out sometime next week, as it is abusive
    > to end users.
    > >
    > > Adam
    > >
    > >
    > >
    > >
    >
    >
    > --
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    >




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