I want to create a rectangle with a line in the middle with the canvas object. The problem is that the line in the middle gets bigger than the rest of the rectangle. How do I solve this? I believe it has something to do with shadows. If so, how do I turn them off.
My code is:
In PS you press CTRL+T on new layer. 9 handles appears an then you can stretch/rotate/move that layer. Looking just for that stretch & rotate functionality with dotted/dashed retangle outline. That is, there should be 8 handles on rectangle boundarys and then rectangle should be rotated & stretched via those points. & moved via nineth center point.
View 5 Replies View RelatedI want to create an overlay to show a photo in the middle of the screen with a navigation menu. As overlay I use something like:
.overlay {
position: absolute;
top: 0;
left: 0;
[Code].....
Here's a snippet:
canvases[i] = document.createElement('canvas');
canvases[i].style.width = '3px';
canvases[i].style.height = '100%';
canvases[i].getContext("2D");
canvases[i].fillRect(1,0,1,table_height);
I'm trying to dynamically create a canvas element. Later in the script it gets attached to the DOM, and this works fine if the last two lines are missing. I end up with a canvas element that is 3px wide and 100% of the containing div tall. However, the last two lines make it crash, with the error report 'canvases[i].fillRect is not a function'.
If I change the last two lines to:
var drawing = canvases[i].getContext("2D");
drawing.fillRect(1,0,1,table_height);
It says 'drawing is null'. Something seems to be going wrong with the getContext bit, because setting the height and width work fine. It behaves the same if I append the canvas element to the DOM before trying to do the drawing as well. This is in FF4.0.1 with a xhtml1-strict.dtd doctype and valid html.
I want to be able to place an image on the canvas and have an onclick event for that object.
Code:
<!DOCTYPE html>
<html>
<head>
[code]....
I am using the HTML5 canvas element and an image object that I move around the canvas using the arrow buttons.I would like to be able to move the image around until it reaches the top, bottom, or sides of the canvas element. I know that I need to get the position of the x, y positions of the element. I'm just not sure about the logic to compare the elements location to the sides or top or bottom of the canvas. Furthermore, not sure how i would disable to arrow button to prevent me from arrowing the object outside of the canvas.I'm testing in IEMy canvas width is 512 and canvas height is 480The object I'm moving around is an image.png that is 32 X 32I know this isn't much to go on, but I'm having difficulty coming up with how to ask the question
View 1 Replies View RelatedI want to delete some lines on the canvas that i have created in HTML5 (with the <canvas> tag). I know one solution and that is using clearRect() (give this function the HEIGHT and WIDTH of the canvas and you clears the whole canvas.).But i don't want to clear the whole canvas, i only want to delete a few lines made by the function lineTo().
View 1 Replies View RelatedI'm new to Javascript and just trying to create a simple in-line image swap. Here is my code:
Code:
<SCRIPT LANGUAGE=JavaScript>
function swapImage() {
var image = document.getElementById("wordsearch")
image.src = "images/fall2011-wordsearchans.gif"
}
</SCRIPT>
[Code]....
The page displays but the image does not swap.
I have a menu in which is applied typeface script. Typeface 0.11 version doesn't support hover on links. There is an experimental version but doesn't work very well for me, so i tried to implement hover by myself.
Problem is: hover works pretty well changing canvas context property fillColor and then calling fill(), but the stroke on hovered voice remains on another color. Difficult to explain, so i put some test code online: TEST CODE As you can see, passing with mouse on the menu voices triggers the hover and the element change, but remains bordered in red.
[Code]...
I am doing a website project and in that currently I am designing a product page. I have to design add values to text boxes and drag and drop the text boxes in the workspace and delete the text boxes the user does not want and have to draw a graphical line between the text boxes which are in order.I have designed and coded everything except the graphical line part.
I am a learner in javascript and Can we draw a graphical line dynamically between the text boxes in the webpage? If we can draw, can anyone let me know the tutorial for that so that I can learn and start coding as I have to submit that project soon.
I am tring to display some texts in a textbox using to create a new line but it does not work.
<script>
document.getElementById("txtbox1").value=" this is my firstline
This is my second line
[code]....
I am doing a website project and in that currently I am designing a product page. I have to design add values to text boxes and drag and drop the text boxes in the workspace and delete the text boxes the user does not want and have to draw a graphical line between the text boxes which are in order.
I have designed and coded everything except the graphical line part. I am a learner in javascript and Can we draw a graphical line dynamically between the text boxes in the webpage? If we can draw, can anyone let me know the tutorial for that so that I can learn and start coding as I have to submit that project soon.
every time I try and alert:
[ { number:0, secondnumber:0 }, { number:2, secondnumber:1 }, { number:1, secondnumber:2 } ]
it just shows [object object], [object object], [object object]. Why is this and what can I do to make the record be shown as it is above in an alert?
Is there any way at all to create a new template object that inherits from the built in Date object so as to be able to add new methods to that child object without adding them to the built in Date object? I've tried everything I can think of and as far as I can tell it keeps referencing the Date function instead of the Date object and so doesn't work.
View 3 Replies View RelatedI have a javascript object which is converted from json to java script object. i want to display its values like after each key value pair, i want to insert new line. but i dont know exactly how to do that. below is my code, please take a look and tell me how i should insert a new line. i tried but its not inserting a new line is diplay.
$.ajaxSetup({
cache: false
//timeout: 1000000
[code]....
I know for a fact that it is an object and I'm pretty sure that it isn't null. I will give you a link to the page that I'm troubleshooting even though it's embarrassingly ugly. Does anyone have
an idea of why it's not seeing the <select name=finish> on Line 183 in <Form Name="myform">?
Why doesnt the following code work in IE. There is an error on the same row as fillText. It says object doesnt support this property or method.
<html>
<head>
<title></title>
<script type="text/javascript" src="excanvas.js"></script>
</head>
<body>
<canvas id='chart' width='500' height='200'>
[Code]...
My code:
function run() {
for(var k = 0; k < newPhotos.length; k++)
{[code]....
I get an error on this line Quotedocument.getElementById(imageId).style.backgroundImage = "url(" + newPhotos[k] + ")";
the error is: QuoteObject Required
I'm just not sure what object they are talking about. This piece of code basically goes through and assigns x amount of divs a background image.
How to use Javascript to draw a rectangle when the user drags the mouse across the webpage?
I know the drawing methods but how do we allow the user to be able to draw a rectangle on the webpage?
e.g When the user drags the mouse across the page and releases the mouse button, a rectangle appears.
I have an application that draws a selection rectangle over a map
image. I can get it to work fine in IE and Opera, but not
Firefox/Netscape.
I've thrown the following small example together to illustrate the
problem - the problem being that FF/NE initially draw my rectangle
before the icon changes immediately to the black no-entry icon. Then,
when I let go of the mouse, the rectangle continues drawing, but it
doesn't stop as the mouseup has already fired of course.
IE was doing the same, but I found the ondragstart/cancelDragDrop
solution to that. I can't find what appears to be a similar solution
for FF/NE.....
I am retrieving titles from a database and then displaying them on screen. However when I display them I must make sure that they fit inside a certain rectangle. If it deosn't fit then i must reduce the font size and recalculate until it fits. The title is in two parts Code:
View 1 Replies View RelatedCame across an interesting question put to me by someone today.. Is it possible to list all the co ordinates within a image map rectangle hotspot?
First thought was, yeah sure, then I actually began to think & thought, hmm how would you do that
Does anyone have any ideas? Are there any tricks or math out there that could do such an ask?
When setting the tabIndex property for an element, Firefox also displays, like IE, a dotted rectangle around the focussed element. With IE you can set hideFocus=true, which does not work with Firefox.
How do I hide the focus rectangle for Firefox?
In slideshow running on xp_pro/ie8, after the last slide is displayed, a small white rectangle (approx w:60px h:20px) at the top left positionwhere the1st slide is about to re-appear. The 1st slide then displays correctly, as doall the slides, but I can't keep the rectangle from showing up.
[Code]...
I am trying to use the cookies script at to make a "ReloadIfIE" script when someone clicks on a link. Basically I want to refresh the page if someone is using internet explorer due to a bug in IE. I want the text in a textarea to be saved and re-inserted into the textarea after refresh.I was told to use cookies to accomplish this.I get the error "Object expected" for the line that contains the bolded text below...Of note, I've also tried it by placing the element_id directly into the script.. but that didn't help either.
Code:
function createCookie(name,value,days) {
if (days) {
var date = new Date();[code]............
how to read a text file using javascript line by line and separate from special characters in it. for example
Text.txt has
001203=Line one=abc.html
024353=Line two=xyz.html
092434=Line three=hjf.html
i want each column in an array like { 001203,024353,092434 } so total 3 arrays.
