How to get original image's coordinates X,Y from zoomed image

[a***@hotmail.com]

Hi Everyone,

I am not sure whether this is the correct group to post this topic, but I need your help if all possible:

I have an image file w = 2479, h = 3508, dipx = 300, dixy = 300
To display online, I use a software to make a smaller w = 800, h = 1052, dipx = dipy = 300
Once user uses mouse to draw a rectangle I get the coordinate x=175, y = 202, the retancalar w = 584, h = 52
I would like to know how can I get the original image's x, y, and the rectangle w, h?
Any ideas for the fomular that I can use?

Thanks in advance

Rob

[Evertjan.]

Post by a***@hotmail.com
Hi Everyone,

Sorry, no one here,

This NG is dying.

Post by a***@hotmail.com
I am not sure whether this is the correct group to post this topic,
I have an image file w = 2479, h = 3508, dipx = 300, dixy = 300

dixy?

Post by a***@hotmail.com
To display online, I use a software to make a smaller w = 800, h =

What software, clientside javescript code?

Show your code and ask here:

Newsgroups: comp.lang.javascript

Post by a***@hotmail.com
1052, dipx = dipy = 300 Once user uses mouse to draw a rectangle I get
the coordinate x=175, y = 202, the retancalar w = 584, h = 52 I would
like to know how can I get the original image's x, y, and the
rectangle w, h? Any ideas for the fomular that I can use?