php generated image in javascript

Question

I have a picture generated with GDLib. In this picture gdlib adds some gif dots in various locations, according to database data.

Now i would like to somehow identify these dots with javascript and make a simple fadein/fadeout function for these dots.

However since its being done with gdlib, i assume the images is interpreted as being just 1 image, and therefore i cannot idetify these dots with JS.

So my question is which technique i should use for this ?

Thanks

simple solution: send 2 pictures - one with dots, one without. Combining javascript (clientside!) and php (server) -> cold shivers up'n down my spine. and yes, ajax.... — Najzero
– Najzero, Commented Mar 14, 2013 at 13:21
I'd probably just draw everything with canvas instead. Edit: Or, like Bart suggests, "draw" everything with HTML elements (one wrapping div and a bunch of spans for the dots should do it) — powerbuoy
– powerbuoy, Commented Mar 14, 2013 at 13:25

Bart Friederichs · Accepted Answer · 2013-03-14 13:20:11Z

1

Take a picture of a dot and use absolute positioning to put it over the image.

answered Mar 14, 2013 at 13:20

Bart Friederichs

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JPJens Over a year ago

Was hoping there was another solution, as i would have to create up to thousands of spans or divs, in order to make it work. But seems this is the way to go. Thank you

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