The image is cached - but it isn't reused in new requests. Consider this simple example:
<cfimage source="presentations/images/originals/insp_continuity.png" action="resize" width="100" height="100" name="myimage"> <h2>Other Content Rocks</h2> <cfimage action="writeToBrowser" source="#myimage#"> <cfdirectory directory="/Applications/ColdFusion8/tmpCache/CFFileServlet/_cf_image" name="test"> <cfdump var="#test#"> If you (fix the path of course) reload this a few times, you will see a new file is created everytime. I stand by my original recommendation - in _general_, it probably makes sense to manipulate an image only one time and save the result. On Thu, Jun 19, 2008 at 11:14 AM, Brad Wood <[EMAIL PROTECTED]> wrote: > There was just a thread on this last week. > (http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:56712) > According to Jochem, ColdFusion DOES cache the file locally on the web > server in the /WEB-INF/cfusion/tmpCache/ directory. > > What this means, is your image is written to the local file system of > your ColdFusion server regardless of whether you do it, or if you use > the write-to-browser function. The main benefit you would have of > writing it yourself is that you could choose where to put it-- ie, a > central network location which is mapped as a virtual directory on your > web server so load balancing will work without sticky sessions. > > Of course, the upside to using the writetobrowser is that ColdFusion > cleans up for you, and you don't have to worry about clearing out the > old files yourself. > > Heck, why don't you do the following and get the best of a couple > worlds. You can let ColdFusion write and clean up the file, but you can > use it however you want: > > <cfimage action="read" source="D:\path\to\your\image\my_image.gif" > name="my_image"> > > <cfsavecontent variable="my_image_html"> > <cfimage action="writeToBrowser" source="#my_image#"> > </cfsavecontent> > > <cfset image_path = rereplacenocase(my_image_html,"(<img > )(src="")([^""]*)("".*$)","\3","one")> > > <table background="<cfoutput>#image_path#</cfoutput>"> > <tr><td>My Table<br /><br /><br /><br /></td></tr> > </table> > > ~Brad > > > -----Original Message----- > From: Scott Weikert [mailto:[EMAIL PROTECTED] > Sent: Thursday, June 19, 2008 9:38 AM > To: CF-Talk > Subject: Re: CF8, cfimage "writetobrowser" action - backgrounds? > > Well thinking about it MORE, I really *do* need to write the images > right out to the browser. > > The sheer number of combinations of the data preclude pre-writing out > the images to the file system - it would be a huge number of files. > > But I figured out my background issue. I'm just using a pair of divs, > overlaid using z-index. One div, I toss the <cfimage> tag into - the > other div (with a higher z-index), I do my other info overlay. Works > like a champ. :) > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:307735 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
