Rounding image corners in CF8
I'm currently working on a site where the staff can upload images for display. Part of the design requirement, is that the corners of these images are rounded off. Step forward coldfuson 8...
Image support in coldfusion was long overdue. Although there were some very good 3rd party components (such as the Alagad Image Component), there should have been something bundled with coldfusion many versions ago. Coldfusion 8 comes with the new <cfimage> tag and dozens of image manipulation and drawing functions. So drawing rounded corners should be easy?
just a $0.02 thought...
java.lang.Double cannot be cast to java.lang.String
Can you create an example that shows the function being called to read an image off the server and round it, then display it?
Thanks.
I've adapted the following example from livedocs:
http://livedocs.adobe.com/coldfusion/8/htmldocs/fu...
I haven't tested this, so let me know how you get on.
<cfscript>
myImage=ImageRead("http://www.google.com/images/logo.gif";);
myImage = roundImageCorners(myImage);
ImageWrite(myImage,"google-logo.gif");
</cfscript>
<p>This image has been downloaded by ColdFusion:</p>
<img src="google-logo.gif">
<p>This is the original image:</p>
<img src="http://www.google.com/images/logo.gif";/>
<cffunction name="roundImageCorners" returntype="any" access="public" output="false" hint="I take an image, object and return it with the corners rounder off">
<cfargument name="image" type="any" required="true" hint="The image to be modified" />
<cfargument name="radius" type="numeric" required="false" default="50" hint="Radius width of the corners" />
<cfargument name="bgcolor" type="string" required="false" default="ffffff" hint="Colour of the rounder corners" />
<cfscript>
var t = "";
var pen = structNew();
var root2 = sqr(2);
ImageSetAntialiasing(arguments.image);
t = arguments.radius * (root2 - 1);
ImageSetDrawingColor(arguments.image,arguments.bgcolor);
pen.width = t;
ImageSetDrawingStroke(arguments.image,pen);
ImageDrawRoundRect(arguments.image, 0-(t/2), 0-(t/2), ImageGetWidth(arguments.image)+t, ImageGetHeight(arguments.image)+t, arguments.radius+(t/2), arguments.radius+(t/2), false);
return arguments.image;
</cfscript>
</cffunction>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitiona...;
<html xmlns="http://www.w3.org/1999/xhtml">;
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<body>
<cfscript>
myImage = ImageRead("test.gif");
myImage = roundImageCorners(myImage);
ImageWrite(myImage,"google-logo.gif");
</cfscript>
<p>This image has been downloaded by ColdFusion:</p>
<img src="google-logo.jpg">
<p>This is the original image:</p>
<img src="http://www.google.com/images/logo.gif">;
</body>
</html>
Thanks for the function. I was able to send a image to the ImageRead function, and have it written to what
looks like the CFFileServlet directory using the CF8 writeToBrowser action with cfimage.
<code>
What?<br>
<cfscript>
myImage = ImageRead("http://sethron.net/images/Dreamjob.jpg";);
myImage = roundImageCorners(myImage);
</cfscript>
<cfimage action="writeToBrowser" source="#myImage#" >
This.<br>
</code>
That in turn created somthing similar to:
<code>
<img src="/CFFileServlet/_cf_image/_cfimg-1234561234561234567.PNG" alt="" />
</code>
http://cfsearching.blogspot.com/2007/12/creating-p...