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JavaScript - Help With Javascript + Webcam
Hey guys, I am new to this forum and not extremely experienced with javascript but I know the basics.
Anyways, I am trying to create a site similar to this one: Internet Explorer 6 but instead of using an image file like the creator did I would like it to repeat live video from the computer's webcam. I was looking at some webcam plugins and the javascript GetUserMedia function but can't get them to work. Does anyone know if this is possible, and if so how to go about doing something like this? Any help or advice would be greatly appreciated! Thanks! Similar TutorialsHi, I'm trying to get my webcam feed embeded as a flash object. I have the url to the swf generated by the webcam software. If I copy and paste the url into IE's address bar, the webcam shows. However, the same url embeded into html does not work. This directly in IE address bar works. But doesn't in any other browser: Code: http://ipaddresshere/axis-cgi/mjpg/video.swf?resolution=320x240&camera=1 I've looked through the code from the webcam (Axis) admin page and copied the code for the flash option. Here is the code: Code: <html>
<head></head>
<body>
<script language="Javascript">
var width = "320";
var height = "240";
var width_height = 'width="' + width + '" height="' + height + '"';
var view_NeedFlashPluginTxt = "You need a Shockwave Flash plugin, get it from:";
document.write('<EMBED src="http://ipaddresshere/axis-cgi/mjpg/video.swf?resolution=320x240'+'&camera=1" ' +
'quality=high bgcolor=#000000 ' + width_height +
' TYPE="application/x-shockwave-flash" swLiveConnect=TRUE' +
' PLUGINSPAGE="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash">' +
'</EMBED>' +
'<NOEMBED>' + view_NeedFlashPluginTxt +
'<a href="http://www.macromedia.com/shockwave/download/">Macromedia</a>.' +
'</NOEMBED><br>');
</script>
</body>
</html>
and this is the html the Javascript outputs: Code: <EMBED height=240 type=application/x-shockwave-flash pluginspage=http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash width=320 src=http://ipaddresshere/axis-cgi/mjpg/video.swf?resolution=320x240&camera=1 swLiveConnect="TRUE" bgcolor="#000000" quality="high"> </embed/> Can anyone spot anything wrong with the code or perhaps suggest why it isn't working? Hi. i was given a task to set up a simple website to display a picture send by IPcamera to survey a construction site. I found a sample code to do such thing, but there is one problem. IP camera sends pictures with different filenames. I would need some way to pass a filename of the newest .jpg picture to this script, or a way to simply show the newest .jpg in certain folder without defining a file name? Im not sure if this question should be in javascript forum or do i need php for this. Anyway thanks in advance, if someone is kind enough to give advice. Hi all First post here. Hope someone can help. I have a webcam that is using ftp. I have a script that works for about 10 or less refreshes most of the time then stops. The page I have it uploading to is Here . The code is.... [CODE] <body> <script type="text/javascript" language="JavaScript"> newImage = new Image(); function LoadNewImage() { var unique = new Date(); document.images.webcam.src = newImage.src; newImage.src = "http://www.qsl.net/2d0drm/cam_1.jpg?time=" + unique.getTime(); } function InitialImage() { var unique = new Date(); newImage.onload = LoadNewImage; newImage.src = "http://www.qsl.net/2d0drm/cam_1.jpg?time=" + unique.getTime(); document.images.webcam.onload="http://www.qsl.net/2d0drm/tmp_cam_1.jpg"; } </script> <img src="http://www.qsl.net/2d0drm/cam_1.jpg" name="webcam" onload="InitialImage()" width="320" height="240"> </body> [CODE] I wondered if someone could tell me why it does this? or even ammend any mistakes. I have tried other refresh scripts, but they seem to have refreshes where there are gaps, which is what i'm trying to avoid. I think it just goes out of sync with the uploading cam images. What I like about the script in the link above is(so I believe), it holds the last image until another uploads, so eliminating the gaps. Thanks if you can help Paul Hello, I am looking to created a login system where a user will take his/her photo via webcam in browser and that picture taken should be related to that user; under a specific timestamp, for example, if my user name is username and I logged In, the system will note my time and by taking a photo (either auto or by clicking a button in browser) and will store that picture in a folder under a unique name related to that customer and the time he logged in, I am stuck how to connect web cam to browser (desirable ajax etc not flash) and then photo taken and stored in a folder with unique name etc anybody did something like this before? help appreciated. I was given this bit of code: Code: <img src="current.jpg" name="refresh" width="306" height="408">
<script language="JavaScript" type="text/javascript">
<!--
image = "current.jpg" //name of the image
function Reload() {
tmp = new Date();
tmp = "?"+tmp.getTime()
document.images["refresh"].src = image+tmp
setTimeout("Reload()",1000)
}
Reload();
// -->
</script>
to refresh a webcam image. I want to know what it means--how often is it set to refresh? I don't know javascript so I can't tell. Is it set to refresh whenever the image is new? or what? I would like to move away from my meta-refresh page-in-an-iframe method of refreshing my webcam if I can. My cam uploads a new image every 5 seconds. I need code that would allow the new image to be seen. Will this code do it? I tried it and it doesn't seem to refresh that often. So what does it do, and can it be tweaked? Im not sure what type of script it is, but another site i saw had a webcam chat room that was a swf file. I know that flash, but where can i get a script for a Webcam chat room to set up on my site. Thanks Hello! I am trying to find a script that allows you to open multiple browser tabs and then close each of those tabs, either one by one or all at once. Does anyone know how to do this please? Thanks so much for your help. I want to have another go at Javascript. I have several books on the subject but I find that my eyesight is a major problem. Therefore I want to try an on-line solution, preferably free. I have Googled, but there are so many that I am almost dizzy with the choices. Perhaps someone could recommend one. Not too fussy visually. My knowledge is VERY basic. Frank Does anyone know how to make URL links that use Javascript still work when users have Javascript disabled on their browser? The only reason I'm using JS on a URL is because my link opens a PDF file, and I'm forcing it not to cache so users have the latest version. I tried the <script><noscript> tags, but I'm not sure if I'm using it correctly, as my URL completely disappears. Below is my HTML/Javascript code: <p class="download"> <script type="text/javascript">document.write("<span style=\"text-decoration: underline;\"><a href=\"javascript:void(0);\" onclick=\"window.open( 'http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf?nocache='+ Math.floor( Math.random()*11 ) );\" >The Child Magazines Media Kit</a></span> (PDF 1 MB) ");</script> <noscript><span style="text-decoration: underline;"><a href="http://www.webchild.com.au/mediakit/Direct_Media_Kit_Web.pdf" >The Child Magazines Media Kit</a></span> (PDF 1 MB)</noscript> </p> Thanks for any help, Michael Hi Guys, I am new at JavaScript and start to do some tutorials.What I am trying to do here is prompting user to input a name and if the name was valid the page(document) will display with all objects like the button.But if user enter a wrong name then the button will be disabled! I create the following code but it did not work <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>New Web Project</title> <script language="JavaScript" type=""> function changeColor(){ document.bgColor = "Gray"; } </script> </head> <body> <script language="JavaScript" type="text/javascript"> var person = ""; person = prompt('What is Your Name:'); if (person == "Foo") { document.write("<h1 />Welcome " + person); document.bgColor = "Yellow"; } else { document.write("<h1 />Access Denied!!!!"); document.bgColor = "Red"; document.getElementById("gree").disabled = true; } </script> <div> <p/><input id="gree" type="button" value="Gray " onClick="changeColor();"> </div> </body> </html> as you can see I used the: document.getElementById("gree").disabled = true; but it did not work , could you please give an idea how I can solve this problem? Thanks Hi, I have the following code snippet: test.html ====== <script language="javascript" type="text/javascript"> var testVariable = "test"; </script> <script language="javascript" type="text/javascript" src="test.js"> </script> test.js ===== var testVariable = window.top.testVariable; In firefox, I'm able to access testvariable defined within test.html in test.js. But in chrome, test.js couldnot get the window.top.testVariable field defined in test.html. Can any one please let me know how i can make it work in chrome?. Am i missing something here?. I got an index.php Code:
<html>
<form action="bacakomik.php" method='post'>
<select name="kodekomik">
<option value='../komik1/|23'>Judul Komik1</option>
<option value="../komik2/|20">Judul Komik2</option>
<option value="../komik3/|10">Juduk Komik3</option>
<option value="../komik4/|20">Judul Komik4</option>
</select>
<input type="submit" />
</form>
<?php
echo ('<select>');
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
echo ('</select>');
?>
</html>
As you can see, each of the option brings specific value "../komik1/|23" komik1 is a directory | is a delimiter 23 is the pages in one chapter and can be considered also as how many images are there on a specific directory This is my bacakomik.php Code: <?php
$dirkomik = $_POST['kodekomik'];
$exploded = explode("|", $dirkomik);
echo ($exploded[0]); //picture directory
echo ("<br>");
echo ($exploded[1]); //total page in the comic
$pagecount = (int)$exploded[1];
//Take last posted value, process it right away
echo ('<FORM name="guideform"> ');
echo ('<select name="guidelinks">');
$i=1;
do {
echo ('<option value= "'.$i.'">'.'Page '.$i.'</option>');
$i= $i+1;
}while($i <= $pagecount); //Printing option and select
echo ("</select>");
?>
<input type="button" name="go" value="Go!" onClick="document.getElementById('im').src=document.guideform.guidelinks.options[document.guideform.guidelinks.selectedIndex].value+'.png';"> </FORM>
<img src="img0.jpg" id="im">
With the current code on bacakomik.php, I only can change the img src of id "im" in the same directory only. What I want is that the Javascript could "add" the "$exploded[0]" variable so that the picture can be loaded from different directory. Anyone can do this? I believe that the fix should be somewhere on input tag inside OnClick, or do you know where? Anyway, I found this on the net http://p2p.wrox.com/php-faqs/11606-q...avascript.html Please help me to those who can... Hi Guys I am trying to modify the functionality of my page. I want to be able to activate this piece of code using another javascript function. This is the code I want to activate: Code: <script type="text/javascript"><!--
$('#button-cart').bind('click', function() {
$.ajax({
url: 'index.php?route=checkout/cart/update',
type: 'post',
data: $('.product-info input[type=\'text\'], .product-info input[type=\'hidden\'], .product-info input[type=\'radio\']:checked, .product-info input[type=\'checkbox\']:checked, .product-info select, .product-info textarea, .date_data input[type=\'text\']'),
dataType: 'json',
success: function(json) {
$('.success, .warning, .attention, information, .error').remove();
if (json['error']) {
if (json['error']['warning']) {
$('#notification').html('<div class="warning" style="display: none;">' + json['error']['warning'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
$('.warning').fadeIn('slow');
}
for (i in json['error']) {
$('#option-' + i).after('<span class="error">' + json['error'][i] + '</span>');
}
}
if (json['success']) {
$('#notification').html('<div class="success" style="display: none;">' + json['success'] + '<img src="catalog/view/theme/default/image/close.png" alt="" class="close" /></div>');
$('.success').fadeIn('slow');
$('#cart_total').html(json['total']);
$('html, body').animate({ scrollTop: 0 }, 'slow');
}
}
});
});
//--></script>
And this is how I want the format of the function to be: function testsession() { if there is a session called 'hiredate' { activate the script above } else { var el = document.getElementById("product_data"); } } I just dont know how to write this in javascript Could you help me if possible please I want to insert this js snippet Code: function addText(smiley) {
document.getElementById('message').value += " " + smiley + " ";
document.getElementById('message').focus();
return false;
}
to a loaded iframe with name&id chtifrm. I can access it & change embed something in its html via using something like: Code: $(parent.chtifrm.document.body).append('<div id=\"smly\" style=\"cursor:pointer;float:left;top:200px;display:none;position:absolute;\"><\/div>');
.... Code: parent.chtifrm.document.getElementById('chatbox_option_disco').style.display == 'none'
but how do I insert js in the head of loaded iframe? Hey, I've got to make the values of some textboxes change the co-ordinates of my sprite on a canvas and havent a clue on how to do it, Here is my form with the two textboxes and submit button: <form> x: <input type="text" name="x" /><br /> y: <input type="text" name:"y" /><br /> <input type="submit" value="Submit"/><br /> </form> And i need it so that they change the values of these: //this shows where my sprite will start on the canvas var block_x; var block_y; searched the internet for hours and cant really find anything i understand or works. any help is much appreciated All -- I have a JavaScript config file called gameSetting.js which contains a bunch of variables which configures a particular game. I also have a shared JavaScript library which uses the variables in gameSetting.js, which I include like so: <script type="text/javascript" src="gameSetting.js" ></script> <script type="text/javascript" src="gameLibrary.js" ></script> In gameSetting.js I have: $(document).ready(function() { // call some functions / classes in gameLibrary.js } in Firefox, Safari, and Chrome, this works fine. However, in IE, when it's parsing gameSetting.js, it complains that the functions that live in gameLibrary.js aren't defined. When it gets to parsing gameLibrary.js, the variables in gameSetting.js are reported as not being defined. I've tried dynamically bootstrapping the gameLibrary file using this function in document.ready for dynamic load... $.getScript("gameLibrary.js"); However, the same problem still happens in IE, where when it parses the files individually it's not taking into context the file/variables that came before, so it's not an out of load order problem. My options a 1) collapsing all the functions in gameLibrary.js and variables in gameSetting.js into one file. However, this is not practical because this is dealing with literally hundreds of games, and having a gameLibrary.js in ONE location for ONE update is what makes most logical sense. 2) figure out a way to get this to work where variables in file1 are accessible to file2 in IE (as it seems they are in other browsers). jQuery seems to be able to have multiple plugins that all refer to the based jQuery-1.3.2.js, so I know there is a way to get this to work. Help appreciated. Nero I wrote a log function that took note of various function calls. Thinking that functions are first class objects, and objects have properties, I made the name of each logged function a property of that function, e.g., brightenInnerPara.name = "brightenInnerPara"; Every browser I tried (Firefox, MSIE, Opera, Chrome, Safari) accepted the assignment, no problem. In Firefox and MSIE, the result was what I wanted: brightenInnerPara.name == "brightenInnerPara" But in the others, the result was: brightenInnerPara.name == null Question 1. Which Javascript is correct here? I favor Firefox and MSIE, not merely because they were willing to give me what I wanted, but also because it makes no sense to accept an assignment statement without throwing an error and then give it a null semantics, like Chrome, Opera, and Safari did. I found a workaround, using assignments like this: brightenInnerPara.prototype.name = "brightenInnerPara"; To my surprise, that worked in every browser. But I don't know why. It seems that such assignments are enough to cause each function to have its own distinct prototype. Question 2. Just how inefficient is my workaround, and why does it work? I designed a simple mobile in html , i want to link it to strings such that.... example : there are numbers from 0 to 9 and when ever i click on a number and then click on another after all the click i made and at last when i click on the " dial" (for example purpose) it should prompt all the numbers in sequence where i click. example to make it clear for my purpose : 1 2 3 4 5 6 7 8 9 * 0 # Dial (button) I clicked on "4" then "6" then "9" and then i hit the "dial" button the it shold show an alert box displaying "469" . I think it isn't a big challenge for you javascript coders. Please post the whole javascript code for this function, also the id's defined to the html separetly by you I am just learning and up on queries , so want your help Thaks a ton I am new to this forum and new to JavaScript. I am currently taking a class called Web Systems, and for one of the assignments, we need to create a Web page that allows a user to enter a number into a text box, click on a button to calculate shipping, and have a window pop up with the total. There are specifications, but those are not my problem. Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Calculate the Shipping</title>
<script type = "text/javascript">
/* <![CDATA[ */
var price = document.shipping.purchPrice.value;
var total;
function calculateShipping(shipping) {
if (price <= 25) {
total = price + 1.5;
window.alert("Your total is: $"+ total);
}
if (price > 25) {
var shipHand = price * 0.1;
total = price + shipHand;
window.alert("Your total is: $"+ total);
}
}
/* ]]> */
</script>
</head>
<body>
<form id="shipping" method="get" action="">
<label>Purchase Price: </label><input type="text" name="purchPrice" value=""><br>
<input type="button" name="shipHandling" value="Calculate Shipping and Handling" onclick="calculateShipping(this.shipping)">
</form>
</body>
</html>
The alert windows will not pop up. I tried listing the code outside of the if-else statement, but then the total becomes undefined. I have been working at this for a day now. I want to be able to understand my mistake, here, so if someone would be able to explain it to me on a very basic level, I would appreciate it greatly. |
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