height of text

[Andrew Poulos]

Within text in a P element is it possible to know the height, width, and
relative position of individual letters?

Andrew Poulos

 

[Gregor Kofler]

Andrew Poulos meinte:

Within text in a P element is it possible to know the height, width, and
relative position of individual letters?

No. Since you can't access the metrics of a single letter.

Gregor

 

[SAM]

Le 9/5/09 12:31 PM, Andrew Poulos a écrit :

Within text in a P element is it possible to know the height, width, and
relative position of individual letters?

You may ask user to click where you want to mesure.
(letters's sizes can be fixed by the user so you can't be sure how big
they are on the user's screen).

To get positions of mouse see :
<http://www.quirksmode.org/js/findpos.html>
elements dimensions :
<http://www.quirksmode.org/dom/tests/elementdimensions.html>

 

[Dr J R Stockton]

In comp.lang.javascript message <[email protected]>,

Andrew Poulos meinte:

No. Since you can't access the metrics of a single letter.

But, given the name/ID of the P element, I suppose that one might by DOM
methods get its text, insert <span> </span> around the target letter,
and access the metrics of that span.

 

[Gregor Kofler]

Dr J R Stockton meinte:

In comp.lang.javascript message <[email protected]>,


But, given the name/ID of the P element, I suppose that one might by DOM
methods get its text, insert <span> </span> around the target letter,
and access the metrics of that span.

Indeed, this could work, depending on what you accept as "letter
position, width, height". The OP didn't state, what he tries to achieve.

Gregor

 

[SAM]

Le 9/6/09 1:14 PM, Dr J R Stockton a écrit :

In comp.lang.javascript message <[email protected]>,


But, given the name/ID of the P element, I suppose that one might by DOM
methods get its text, insert <span> </span> around the target letter,
and access the metrics of that span.

Pomme + plus (Apple +) hop! enlarge characters

Pomme + moins (Apple key -) hop! smalest

My Safari displays letters bigest than my Firefox
(I fixed them like that)
Windows displays same character in same font bigger than Mac

No you can't pronostic which will be the size (in pixels) of any
character displayed on the user's screen.

But yes you may get an approach of the size of a span with one character
test. (the size of the box of the span, not this of the letter)