🚀 go-pugleaf

sVennieboy wrote:
> On 2 Apr 2003 01:00:14 -0800, palmturtle <palmturtle@yahoo.com> wrote:
>>
>>  But now we have encountered an interesting problem, and I like
>>  reactions from experienced programmers.
>>  One type of questions is the click zone question  / hotspot area .
>>  In these type of questions the  author will  have to select an image
>>  first. After the selection he will be brought to a new page with the
>>  selected image in it. He can now make ROI's on the image (a ROI
>>  stands for Region Of Interest or a hot spot). He has to specify the
>>  properties of every ROI in a form also shown on the same page.
>>  Examples of properties are points to earn when a student clicks in a
>>  specific ROI.
>>  These ROI's have to be made visible to the testor, but may not alter
>>  the image!
>
> Do you use some kind of scripting language on the server side (PHP,
> ASP, ...)?
>
> If so, you could, every time the author clicks on a spot in the image,
> pass the coordinates clicked on to the script that generates your
> webpage and have that script generate a visual marking on the
> coordinates the author clicked on the image.
> The image displayed on the new page would then consist of the original
> image, where on the server side you add your visual marking at the
> desired coordinates.
> I think there are applications that allow you to modify .PNG, .GIF,
> .JPEG, ... that you can use on the server to compose the new image
> that has to be displayed in the author's browser.


Oh, boy... that will be horribly slow. The image must be reloaded for every
node you draw. Better stick to a client side solution.


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