How can I change the image of the fabric.Image object attribute src, if I have already made an animation?
You can use .setElement() to change the image.
For example, let's say you have a fabricJS image object called myFabricObect.
Then, if you have an html image element <img id="newImage"> on your page, you can load your myFabricObject with the "newImage" like this:
myFabricObject.setElement(document.getElementById("newImage"));
You could also create a javascript Image() and assign that to myFabricObject:
var img=new Image();
img.onload=function(){
myFabricObject.setElement(img);
}
img.src="myNewImage.png";
You could use setSrc():
var activeObject = canvas.getActiveObject();
activeObject.setSrc('images/my-image.png', function(img) {
canvas.renderAll();
});
This is best option I found
var activeObject = canvas.getActiveObject();
activeObject.setSrc(data.url);
Related
I have an SVG loading like this:
<object id="svg-object" type="image/svg+xml" width="1400px" height="900px" data="media/1.svg?"></object>
I then have a function that works calling out one element in this svg and apply a style to it just fine. Here is the onload event that is working for getting me the element properly:
window.onload=function() {
var svgObject = document.getElementById('svg-object').contentDocument;
var element = svgObject.getElementById('sprite1');
};
But how do I set a .hover even in for this same element? I've tried:
$('#${element}').hover(function(e) { }
But no luck.
Also, how can I apply the svgObject variable to a whole class like path or polygon? I use this on a local inline SVG and it works fine:
$("polygon, path").hover(function(e) { }
I would like this to work on the object embedded in the svg also.
Sorry, I am not able to put an external svg in snippet (or at least I don't know how) as external URL will not load in an object. And it needs to load as an object for you to see the issue.
Any help?
Also, here is code that works defining element color from script but mouseover not working either. (tried instead of hover)
window.onload=function() {
var svgObject = document.getElementById('svgEmb').contentDocument;
var element = svgObject.getElementById('left');
element.style.fill = "blue";
element.style.stroke ="blue";
};
element.addEventListener("mouseover", function() {
element.style.fill = "red";
element.style.stroke ="red";
});
I'm working with RaphaelJS.
I've noticed that you can add dynamic data to the elements, for example:
to assign a value:
el.data("key",value);
to get a value:
el.data("key")
How can I copy this behaviour using JQuery or Javascript?
Hi I'm trying a wild guess here: as I understand correctly you'd like to communicate from Rapahel to jQuery.
The best I've come up so far is to keep references of both and use them accordingly as Raphael seems not to insert data into dom directly (apart from ID attribute):
$(document).ready(function () {
var paper = Raphael("div", 400, 150);
var circle = paper.circle(80, 80, 30).data('title', 'Red dot').attr({
fill: '#f00'
});
circle.node.id = 'my_circle';
$el_circle = $(circle[0]); // get DOM element out of Rapahel's object
$el_circle.on('click', function () {
// use Raphael reference:
alert("My is title: " + circle.data('title'));
});
});
http://jsfiddle.net/saxxi/Z35NV/
References.
the possibilities: raphael.js - custom attributes
the explanation: Where does Raphael.js store an element's data that is set with the element.data() method?
Combining Raphael and jQuery to achieve browser compatibility
I Googled this issue for about 30 minutes and was surprised nobody has asked so maybe it's not possible.
I'm using this line to embed the SVG file that I made in AI (note that when I saved the SVG, I had no fill OR stroke on the paths):
<object type="image/svg+xml" data="example.svg" height=600px width=600px>Your browser does not support SVG</object>
This obviously comes up with no image because the SVG file has no fill or stroke.
I tried adding in
...fill=yellow>
or
...style="fill:yellow;">
but I'm not having any luck. Thanks!
Have a nice trick: Embed it as <img> and use javascript to convert it into inline <svg> with this code (that came from SO I think). Now you can manipulate this SVG object
CODE::
/*
* Replace all SVG images with inline SVG
*/
jQuery('img.svg').each(function(){
var $img = jQuery(this);
var imgID = $img.attr('id');
var imgClass = $img.attr('class');
var imgURL = $img.attr('src');
jQuery.get(imgURL, function(data) {
// Get the SVG tag, ignore the rest
var $svg = jQuery(data).find('svg');
// Add replaced image's ID to the new SVG
if(typeof imgID !== 'undefined') {
$svg = $svg.attr('id', imgID);
}
// Add replaced image's classes to the new SVG
if(typeof imgClass !== 'undefined') {
$svg = $svg.attr('class', imgClass+' replaced-svg');
}
// Remove any invalid XML tags as per http://validator.w3.org
$svg = $svg.removeAttr('xmlns:a');
// Replace image with new SVG
$img.replaceWith($svg);
});
});
Are you trying to add the fill or style on the object element? If so, that's not going to work. Those properties are not supported on the object element. You're going to have to add it into the SVG in the SVG file.
Found a couple of solutions here about adding SVG patterns dynamically but it doesn't seem to work with jvectormap. I think the problem may be that there is no XMLNS attribute defined on the <SVG> tag by jvectormap but my attempt to add these attributes does not work.
I also tried changing all of the setAttribute to setAttributeNS for pattern and image. But no dice.
Here is my attempt (based on this solution: How to dynamically change the image pattern in SVG using Javascript):
// Set namespace for SVG elements.
var svgMap = $('.jvectormap-container > svg').get(0);
var svgNS = 'http://www.w3.org/2000/svg';
var svgNSXLink = 'http://www.w3.org/1999/xlink';
svgMap.setAttribute('xmlns', svgNS);
svgMap.setAttribute('xmlns:link', svgNSXLink);
svgMap.setAttribute('xmlns:ev', 'http://www.w3.org/2001/xml-events');
// Create pattern for markers.
var pattern = document.createElementNS(svgNS, 'pattern');
pattern.setAttribute('id', 'markeryellow');
pattern.setAttribute('patternUnits', 'userSpaceOnUse');
pattern.setAttribute('width', '38');
pattern.setAttribute('height', '38');
// Create image for pattern.
var image = document.createElementNS(svgNS, 'image');
image.setAttribute('x', '0');
image.setAttribute('y', '0');
image.setAttribute('width', '38');
image.setAttribute('height', '38');
image.setAttributeNS(svgNSXLink, 'xlink:href', '/path/to/image.png');
// Put it together
pattern.appendChild(image);
var defs =
svgMap.querySelector('defs') ||
svgMap.insertBefore(document.createElementNS(svgNS, 'defs'), svgMap.firstChild);
defs.appendChild(pattern);
var $markers = $(svgMap).find('.jvectormap-marker');
$.each($markers, function(i, elem) {
$(elem)
.attr({
'fill': 'url(#markeryellow)'
});
});
Good day.
I use script Imagecropper
Script:
<img src="http://test.com/img/1362244329.jpg" id="yui_img" height="768" width="1024">
<script>
(function() {
var Dom = YAHOO.util.Dom,
Event = YAHOO.util.Event;
var crop = new YAHOO.widget.ImageCropper('yui_img');
})();
</script>
result:
But if i do not specify the image size, then i get next(see image):
<img src="http://test.com/img/1362244329.jpg" id="yui_img">
result:
And if i specify the wrong picture size, the window will increase the portion of the image:
<img src="http://test.com/img/1362244329.jpg" id="yui_img" height="333" width="500">
result:
How to make in tag image does not necessarily will been to specify its size?
First of all I'd like to point you to YUI 3 since YUI 2 is no longer supported. You shouldn't write new code using YUI 2. There's an ImageCropper component I wrote for YUI 3 that works just like the YUI 2 version in the YUI Gallery: http://yuilibrary.com/gallery/show/imagecropper. Since it copies what the YUI 2 ImageCropper did, it shares these issues with the older version.
What to do when the size of the image isn't specified
The reason why you're getting a small ImageCropper is that you're creating the widget before the image has been fetched and so the browser doesn't know its size yet. What you can do is wait for the image's onload event. You can listen to that event and create the ImageCropper after it fires:
(function() {
var Dom = YAHOO.util.Dom,
Event = YAHOO.util.Event;
var yui_img = Dom.get('yui_img');
Event.addListener(yui_img, 'load', function () {
var crop = new YAHOO.widget.ImageCropper(yui_img);
});
})();
Why the ImageCropper doesn't work with images with the wrong size
Neither the YUI 2 ImageCropper nor my YUI 3 version work with images when they don't have the right size. The reason is that both use the background: url() CSS style for showing the image inside the crop area (the non-darkened part of the widget). CSS backgrounds don't let you use a resized/zoomed image.
I plan on using another strategy at some point for the YUI 3 version that will fix the issue. However, you need to keep in mind that the ImageCropper component is designed so that you send the crop coordinates to the server for it to actually crop the image. That means that if you have the wrong size set to the image, the coordinates that the image cropper returns with its getCropCoords method wouldn't be the coordinates that match with the full sized image. Instead you'd also have to send the server the size of the image you've been using and do extra math to crop the image correctly.
In conclusion, you shouldn't use the image with the wrong size. You can fix the size of the image in two ways:
Use the HTML5 naturalWidth and naturalHeight attributes of the image. Those return the real size of the image even if it's resized. Unfortunately these attributes are not yet supported by all browsers.
Create a new image with JS, set it the same src as the image you're using, listen to its load event and get that image's size.
Something like this:
(function () {
var Dom = YAHOO.util.Dom;
var yui_img = Dom.get('yui_img'),
new_img = new Image();
new_img.onload = function () {
yui_img.width = new_img.width;
yui_img.height = new_img.height;
// create the ImageCropper
};
new_img.src = yui_img.src;
}());
A YUI3 version
You can easily do all this with YUI3:
YUI().use('gallery-imagecropper', function (Y) {
var img = Y.one('#yui_img');
img.on('load', function () {
var cropper = new Y.ImageCroper({
srcNode: img,
width: img.get('width'),
height: img.get('height')
});
cropper.render();
});
});
Typo in code. Should be
var cropper = new Y.ImageCropper({
You missed a letter "p".