Re: [Zope] Render image from external method.
Jason C. Leach schrieb: > Hi, > > I'm wondering how I can render an image from an external method > without creating a permanent image object in Zope? What I have is a > python script I call in my ZPT. The python script does some things, > and calls an external method that returns PNG image data. If I do > tal:attributes="src python:python_script()" What I get is the string > containing the PNG image data, but it's not rendered. > > An example of what I get is: > > Any ideas? I don't really want to create a permanent image object, > and I know that will work because I have used it to create thumbnail > images before. Yes, you have to link to the image in your HTML code - just like any other image you see. (Only a small popolation of browsers support inline images - and these only really work for fairly small images - so this isnt an option for you I guess) If you need parameters to render the image, either put them into the URL (ZTUtils.make_query() can help here) or in the SESSION. Btw, you might be confused by zopes Image objects which behave in a dual way. When "called" inside your template, they output a HTML image-tag with a link to their URL. Accessing the URL however, produces the binary data of that image. Regards Tino ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Render image from external method.
On 2/16/06, Jason C. Leach <[EMAIL PROTECTED]> wrote: > Hi, > > I'm wondering how I can render an image from an external method > without creating a permanent image object in Zope? What I have is a > python script I call in my ZPT. The python script does some things, > and calls an external method that returns PNG image data. If I do > tal:attributes="src python:python_script()" What I get is the string > containing the PNG image data, but it's not rendered. > > An example of what I get is: > Correct use would be The *browser* will then call the image, not your ZPT code. > Any ideas? I don't really want to create a permanent image object, > and I know that will work because I have used it to create thumbnail > images before. > > Thanks, > Jason. > > -- > > Jason C. Leach > PGP Key: 0x62DDDF75 > Keyserver: gpg.mit.edu > ___ > Zope maillist - Zope@zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
