Get An Image's Dimensions / Large Images Always Fail To Load

Oct 29, 2010

I have also Googled this issue plenty of times, but nothing seems to be working 100% and/or the "solution" found is several years old.I have a text field on a webpage where a user enters in a URL to an image and then clicks a button to preview it. I want to restrict the image's size, so if it is larger than 600x450 then it will be automatically resized to those dimensions.The problem I have with this code is that the myImage.onerror event always fires if the image is large. My question is: how do you make the script "wait" for the image to load completely before trying to retrieve the width and height? Or, even better, how do you prevent the image failing to load?

Also, I know how to get the image's dimensions via PHP; however, according to the getimagesize() function's documentation on php.net, the function downloads the image to the server before retrieving the image's width and height, which could be potential trouble if a malicious or ignorant user enters a URL to an excessively large image.

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I am rotating images at one location of my web site. My problem is if I set the width and height of the new image before I show the new image, the old image is stretched first to the new image dimensions, and if I show the new image before setting its dimensions, the new image is stretched first to the old image dimension before it is adjusted to its own dimension. I would like to load a new image with its own dimension at the same time. How can I do this?

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I've got the jquery-ui slider working on adjusting the size of my thumbnails, BUT the problem is if the image is portrait, it overflows out of the container´┐Ż*jquery to the rescue, right? Not quite.Below is the js and basic css that i'm using. Shouldn't this be applying a different class on each img element based on the height/width values? They're all getting the same class.Am I needing to do some sort of loop function for this instead?

Code JavaScript:

$("#thumbnail_size").slider({
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[code]....

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May 5, 2009

After using and altering a javascript random image generator code from the web, I've got it doing exactly what I wanted...but only on the mac.The page is supposed to display 5 random images next to each other.Mac Opera shows 3 of 5 images.IE 8 on the PC does the same as Mac Opera, displaying images from gallery[0], gallery[2] and gallery[4].

Between the gallery[0] and gallery[2] images, the page displays: pickImageFrom(1);
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Jun 24, 2009

I am trying to load a jquery chart (Flot) inside the second tab of jQuery tabs. It works fine on the opening tab, but if i bury the chart in any tab, it breaks and throws the js error "Invalid dimensions for plot..."I looked around and the problem might be that because the second tab is hidden at page load, it is breaking something... I dug up a possible jquery fix/plugin called frameReady, which allows for you to load iframes, but I am not sure how to apply it.

[URL]

how I can enable the second tab to show the chart?

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Waiting For Images To Load Before Display Image?

Jan 11, 2011

Here is a snippet of code that I have. First off the recursion doesn't appear to be working as it only ever calls the addThumb function once and it should be called it more often as it never gets to the point of popping up the alert box "Loading". addThumbNails in this case is being called first which then calls addThumb. I have tried a preloading function for images with the same issues. The result of the current code can be seen here.

http:[url]....The thumbnails should load below a main image. The main image also isn't loading for the same reason at this point. Hit reload and the page reloads correctly.

Code:
/***************************************
Adds the thumbnails to the scrollBar
!!!Need to randomize the order.[code]......

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Is there any way to determine the pixel height and width of an originalimage?

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So I'm working in a project where I need to get the dimensions of an image. If I use .height() of the image I get 0 returned, but if use .height() on its surrounding div I get the image's height returned.I need the height and width of the actual image, what should I do?

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This is fine in the case of e.g. an 86x86 image but what I want to be able to do is detect if the image has a height greater than it's width, and if so, crop the image accordingly to make it a square.

Is there a way of doing this with javascript?

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Feb 12, 2010

I have a photo gallery built with XML and PHP (pulling images from a client's Myspace albums).The gallery works fine, displays thumbnails and captions, paginates properly, etc.The whole thing is loaded by AJAX into a div, which complicates things a bit, but it works.When a visitor clicks a thumbnail, the full-sized image displays in a div overlay on top of the gallery div.The overlay is hidden until a thumbnail is clicked, when it is toggled to "visibility:visible". When the overlay "close" link is clicked, the overlay is hidden again.That also works. Some of the images are too large to display properly inside the div without throwing off the layout, so I had to set a max height and width.I can't just use CSS to set the dimensions or it'll size EVERY image to those dims, and the photos are all different sizes...some wider, some longer.So I used javascript to check the image size when the thumbnail is clicked.

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<html>
<head>
<script type="text/javascript" language="javascript">
function getImageSize() {

[code]...

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Javascript
<script language="JavaScript">
function Change_Big_One(thumb){
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[Code].....

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[Code]...

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[URL]

Below my result so far. It kind of works but nowhere near as smooth as i want it to be.

<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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[Code]......

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CSS

#header{
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