I'm using loadSVGfromURL to fill a canvas with this SVG
As you can see in the link, I got some Heather effect on my shirt, along with some shadows. Plus, my SVG style applies a mix-blend-mode: multiply; to my paths.
Unfortunately, once rendered in my canvas, it seems like the paths CSS is not taken into account :
How can I make sure that this style is applied ?
Here is an exemple. Basically you need to map mix-blend-mode to globalCompositeOperation
var site_url = 'http://s3.eu-central-1.amazonaws.com/balibart-s3/SVGMockups2/59f32980b5d8493ef7f29904/front/Layer.svg';
canvas = new fabric.Canvas('canvas');
fabric.loadSVGFromURL(site_url, function(objects) {
var group = new fabric.Group(objects, {
left: 165,
top: 100,
});
canvas.add(group);
group._objects[3].globalCompositeOperation='multiply';
group._objects[2].globalCompositeOperation='multiply';
group._objects[4].globalCompositeOperation='multiply';
group._objects[5].globalCompositeOperation='multiply';
group._objects[6].globalCompositeOperation='multiply';
/*for(var i=0;i<objects.length;i++){
canvas.add(objects[i]);
}
canvas.getObjects()[5].globalCompositeOperation='multiply';*/
// canvas.add(objects);
canvas.renderAll();
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/2.4.6/fabric.js"></script>
<canvas id='canvas' width="900" height="900"></canvas>
Related
I have just upgraded from fabric 1.7 to 2 and now the image object is behaving differently.See the screenshot, the image where the arrow is is completely ignoring the fact that i set a width on it, it looks like it's actually scaling it based on the given height to keep the image ratio. I don't want this to happen, the image needs to stretch to the size i tell it to.
Anyone have any idea to stop it doing this? I mean if i set a width in the options for the image object i expect it to respect those dimensions. It should be stretching to fill where the red box is.
This is happening when loading the image initially as a square and setting {width:1000,height:400} for example, but instead it looks like it's taking the height and scaling the width down to keep it square.
You need to set scaleX for width and scaleY for height. It's a breaking change for v2.
DEMO
var canvas = new fabric.Canvas('c');
var index = 0,
json;
var url = '//fabricjs.com/assets/pug.jpg';
fabric.Image.fromURL(url, function(img) {
var elWidth = img.naturalWidth || img.width;
var elHeight = img.naturalHeight || img.height;
img.set({
scaleX:200/elWidth,
scaleY:200/elHeight
})
canvas.add(img);
})
canvas{
border:2px solid #000;
}
<script type="text/javascript" src="
https://rawgit.com/kangax/fabric.js/master/dist/fabric.js"></script>
<canvas id="c" width="400" height="400"></canvas>
I have a fabricjs canvas with a button that toggles drawing on and off. How can I apply the custom controls to any/all drawn objects that I draw; for example, I'd like to select any of the lines that I draw and only be able to rotate them. I've read the example but must be missing something. How would I accomplish this?
JSFiddle of what I'm working with now
Use cornerStyle to change corner style(rect/circle) and setControlsVisibility to set visibility of controls.
DEMO
var canvas = this.__canvas = new fabric.Canvas('canvas', {
backgroundColor: 'white',
centeredScaling: true,
isDrawingMode: true
});
fabric.Object.prototype.cornerStyle = 'circle';//default rect
fabric.Object.prototype.setControlsVisibility({
tl:false, //top-left
mt:false, // middle-top
tr:false, //top-right
ml:false, //middle-left
mr:false, //middle-right
bl:false, // bottom-left
mb:false, //middle-bottom
br:false //bottom-right
})
$("#drawButton").click(function() {
canvas.isDrawingMode = !canvas.isDrawingMode;
var val = canvas.isDrawingMode ? 'selection' : 'pen_tool';
$("#select").text(val);
});
canvas {
border:1px solid #000;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.7.22/fabric.min.js"></script>
<canvas id="canvas" height="400" width="400"></canvas>
<button class="btn" id='drawButton' value="True"><span><i id="select" class="material-icons">selection</i></span></button>
could someone please point me in the direction for how to enable double click on fabric images? i came across this solution
FabricJS double click on objects
I am trying to not use FabicjsEx
but i am unable to get anything to work correctly. can someone please let me know the best way to accomplish this?
The best way to accomplish this, is to use fabric.util.addListener method.
Using that you could add a double click event for the canvas element and to restrict it to any particular object ( ie. image ), you would have to check whether you clicked on an image object or not before performing any action.
ᴅᴇᴍᴏ
var canvas = new fabric.Canvas('canvas');
// add image
fabric.Image.fromURL('https://i.imgur.com/Q6aZlme.jpg', function(img) {
img.set({
top: 50,
left: 50
})
img.scaleToWidth(100);
img.scaleToHeight(100);
canvas.add(img);
});
// add rect (for demo)
var rect = new fabric.Rect({
left: 170,
top: 50,
width: 100,
height: 100,
fill: '#07C'
});
canvas.add(rect);
// mouse event
fabric.util.addListener(canvas.upperCanvasEl, 'dblclick', function(e) {
if (canvas.findTarget(e)) {
const objType = canvas.findTarget(e).type;
if (objType === 'image') {
alert('double clicked on a image!');
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.7.9/fabric.js"></script>
<canvas id="canvas" width="320" height="200"></canvas>
I want to load different shapes in FabricJS based Canvas using loadSVGFromURL(), but can't. Documentation is also not complete on this. I just want a complete example. I can load it from string, but string creates spaces which creates problems when rendering. Here is my code:
var canvas = new fabric.Canvas('canvas');
fabric.loadSVGFromURL('BlueFlower.svg', function (objects) {
var SVG = fabric.util.groupSVGElements(objects, options);
canvas.add(SVG).centerObject(SVG).renderAll();
SVG.setCoords();
});
I have done an example on jsfiddle, that I create two objects and I load an svg image from url, you can take a look.
Here is an example
The snippet for load svg is this:
var site_url = 'http://fabricjs.com/assets/1.svg';
fabric.loadSVGFromURL(site_url, function(objects) {
var group = new fabric.PathGroup(objects, {
left: 165,
top: 100,
width: 295,
height: 211
});
canvas.add(group);
canvas.renderAll();
});
I want to draw text on canvas., how to do it any sample example?
The canvas already contains some shape drawn, i want to show text on the top of that shape on canvas
How can i do it?
Also be aware that you need to actually have loaded a cufon font. There is no default font when using Fabric.js.
<script src="fabric.js"></script>
<script src="cufon.calibri.js"></script>
There are so many fonts available from http://www.cufonfonts.com/
This being the case the author is planning on removing the need for cufon. Discussed here: Fabric.js + Google Fonts
If you're wanting to render a block, then some text inside of that block. I would do something like this.
//Render the block
var block = canvas.add(new fabric.Rect({
left: 100,
top: 100,
fill: 'blue'
}));
//Render the text after the block (so that it is in front of the block)
var text = canvas.add(new fabric.Text('I love fabricjs', {
left: block.left, //Take the block's position
top: block.top,
fill: 'white'
}));
//Render the text and block on the canvas
//This is to get the width and height of the text element
canvas.renderAll();
//Set the block to be the same width and height as the text with a bit of padding
block.set({ width: text.width + 15, height: text.height + 10 });
//Update the canvas to see the text and block positioned together,
//with the text neatly fitting inside the block
canvas.renderAll();
Take a look at How to render text tutorial.
It's as simple as:
canvas.add(new fabric.Text('foo', {
fontFamily: 'Delicious_500',
left: 100,
top: 100
}));
Also worth noting that you might need to adjust Cufon's offsetLeft to help correctly position the text. Something like:
Cufon.fonts[your-fontname-in-lowercase-here].offsetLeft = 120;
The kitchen sink demo of fabric uses this:
http://kangax.github.com/fabric.js/lib/font_definitions.js