[LON-CAPA-users] Click-On-Image "click coordinate pair" option

Gerd Kortemeyer lon-capa-users@mail.lon-capa.org
Sun, 15 Aug 2004 20:11:18 -0400

Hi Diana,

On Aug 15, 2004, at 6:27 PM, szczesuil wrote:
> I am trying to make some click-on-image problems, but am having 
> difficulty with the "click coordinate pair" option.  When I select 
> this option, a new window opens prompting me to click on the first 
> coordinate.
>  Once I click the selected point in my image, a new window opens 
> prompting me to select the second coordinate.

This is where things are going wrong: there should not be a second 
window. Instead, the second prompt should appear in the same window.

I just tested this on Mozilla on Mac ... where everything worked fine.

Which browser was this? May I ask you to please file a bug at 
http://bugs.lon-capa.org/, specifying the exact browser type, version, 
and platform?

>   However, the image I see is of a question mark.  Does anyone know 
> why this is happening

Yep, the second window is the problem ...

> and/or what I can do to get this option to work correctly?

... try another browser, or enter coordinates by hand.

A correct coordinate pair for a rectangular shape looks like


which is (x_upper_left,y_upper_left)-(x_lower_right,y_lower_right) in 
pixels - one could get the coordinates from Photoshop.

- Gerd.