Hello,
I've created a Unordered list with images using the Javascript DOM,
and i want to set up the width and height attributes of the image...
The problem is that most images vary in size.
Here's my question:
Knowing the filepath of the image, is it possible to extract the width
and height? If yes, how...
Thanks
Marco
....
var ul = document.createElement('ul');
for(var i=0; i<lstThumbnail.length; i++)
{
var path = lstThumbnail[i].path;
var li = document.createElement('li');
var a = document.createElement('a');
//assign 'href' attribute to element a
a.setAttribute('href', '#');
//create img element, assign the attributes: src, alt, width,
height
var img = document.createElement('img');
img.setAttribute('src', path);
img.setAttribute('alt', noimageTxt);
img.setAttribute('width', ???); <--- EXTRACT WIDTH AUTOMATIC
img.setAttribute('height', ???); <--- EXTRACT HEIGHT AUTOMATIC
//add <imgto <a>
a.appendChild(img);
//add <a<li>
li.appendChild(a);
//add <lito <ul>
ul.appendChild(li);
}
.... 4 4035
SM wrote:
Hello,
I've created a Unordered list with images using the Javascript DOM,
and i want to set up the width and height attributes of the image...
The problem is that most images vary in size.
Here's my question:
Knowing the filepath of the image, is it possible to extract the width
and height? If yes, how...
No.
<snip>
--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.
On May 1, 1:12 am, -Lost <maventheextrawo...@techie.comwrote:
Knowing the filepath of the image, is it possible to extract the width
and height? If yes, how...
No.
var img=new Image();
img.src="filepath of image"
img.onload=function(){ alert('Width: '+img.width+', Height:
'+img.height) }
scripts.contact wrote:
On May 1, 1:12 am, -Lost <maventheextrawo...@techie.comwrote:
>>Knowing the filepath of the image, is it possible to extract the width and height? If yes, how...
No.
var img=new Image();
img.src="filepath of image"
img.onload=function(){ alert('Width: '+img.width+', Height:
'+img.height) }
Oops! :\
I have no clue what I was thinking.
Hrmm... maybe I was thinking of reading document.images[0].width or
..height before the image loaded?
No, I am just inebriated.
--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.
On May 1, 3:24 am, "scripts.contact" <scripts.cont...@gmail.com>
wrote:
On May 1, 1:12 am, -Lost <maventheextrawo...@techie.comwrote:
Knowing the filepath of the image, is it possible to extract the width
and height? If yes, how...
No.
var img=new Image();
img.src="filepath of image"
img.onload=function(){ alert('Width: '+img.width+', Height:
'+img.height) }
So it is posible, cool !
I will try it!
I was also looking for a preload function and i believe your answer
does both... preload and size retrieval
Thanks
Marco This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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