Hi, everyone, I'm a beginner with tapestry 4 and got stuck with a problem for
3 weeks already...

my task is:
1. create a dynamic image based on some data provided from user's input
2. create a buffered image and display that image on the page
3. use image map to make some regions of that image clickable

now I've done the first 2 steps and part of the 3rd step. In step 3, I used
@DirectArea custom component(explained in Tapestry in Action as well as used
in the Pet Shop example) to create the image map, but I cannot dynamically
specify the "coords" attribute in <area> tag which is inside <map> tag.

@DirectArea component statically pre-defines the "coords" attribute in .html
file(e.g. <area [EMAIL PROTECTED] listeners="ognl:listeners.selectPage1"
coords="50,50 50,50" /> ), because as for Pet Shop example the image already
exists whereas in my case that buffered image will be created dynamically
and sends to OutputStream to display it. What I want is to take the "coords"
attribute's value from user input at the same time in step 1 and specify the
"coords" attribute(for example: pass "50, 50 50,50" as a string)  for image
map after creating the buffered image.

should I modify the DirectArea.java?

does anyone have any idea how to make it...? 

many thanks in advance.

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