fabricjs

Is there anyway to make canvas object auto snap align on Fabric.js [closed]

百般思念 提交于 2019-12-05 07:21:30
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 6 months ago . Im working on a project of building a editor, i am using the Fabric.js, but i don know how to make the canvas object auto align. Is there any example of making canvas object auto align with another object like this? image of snap example auto snap example from other site link

How to add a text box popup (Jquery tooltip or similar) to a Fabric JS image within a canvas?

你说的曾经没有我的故事 提交于 2019-12-05 06:16:53
问题 I'm working on a Fabric JS project to map a floor with its rooms' locations. At each room location I added an icon. I want to have a text box pop up (such as jquery tooltip) each time the mouse hover above the icon. The text box should show room information (phone number \ person \ size \ etc.) I found this google group post, but no one really described the solution beside sharing this link 回答1: Step 1: Set up your watchers Step 2: Load the dialog Step 3: Figure out where the bounding rect is

Pushing D3.js output through fabric.js for IE8 support?

血红的双手。 提交于 2019-12-05 05:56:07
I'm evaluating Fabric.js as an alternative to Raphael.js for creating interactive visualisations that are compatible with IE8, which doesn't support SVG or canvas (IE8 support is non-negotiable unfortunately). Raphael can be made to work with the visualisation library D3.js - which outputs SVG and is incompatible with IE8 - via the bridging library D34Raphael , a fork of D3 adapted for use with Raphael. D34Raphael adapts some (but not all) D3 features to output into Raphael's abstracted objects instead of the DOM, so that, on IE8, Raphael can interpret D3's output as VML. (edit Feb 2014 -

How to apply filter to canvas backgroundImage in Fabric.js

北城余情 提交于 2019-12-05 03:24:56
问题 Sorry if someone asked the same question. I can't find any way apply filter to canvas backgroundImage. I tried to do something like here: https://stackoverflow.com/a/13541734/1777335 And my code: setBackground: function () { fabric.Image.fromURL(this.model.get('background'), (function(image){ this.canvas.setWidth(image.width); this.canvas.setHeight(image.height); image.filters.push(new fabric.Image.filters.Grayscale()); image.applyFilters(); console.log(image); this.canvas.backgroundImage =

Drag And Drop Image to Canvas (FabricJS)

百般思念 提交于 2019-12-05 02:56:32
问题 The Problem I want to do this with an image instead of a canvas object. Meaning you have to add the thing you want to add TO AND AS A PART of the canvas before you can add it. The images are actually part of the website so it doesn't need to do some intricate stuff. This code I found here only works for when it's an object not an actual element. And by the way I'm using FabricJS just to let you know that I'm not using the default HTML5 canvas stuff. As for any alternatives that are possibly

fabric.js canvas listen for keyboard events?

怎甘沉沦 提交于 2019-12-05 00:50:22
In my fabric application, I'm currently listening for certain key presses such as the delete key, and deleting any selected elements. My method of listening for key presses is: document.onkeydown = function(e) { if (46 === e.keyCode) { // 46 is Delete key // do stuff to delete selected elements } I'm running into a problem though: I have other elements like text boxes on the page, and when typing in a text box, I don't want the delete key to delete any elements. In this question , there's a method described to attach an event listener to an HTML5 canvas: canvas.tabIndex = 1000; allows you to

Fabricjs mask object with transformation

纵饮孤独 提交于 2019-12-04 23:37:53
I'm trying to mask an object using Fabric.js free drawing brush. It works fine if the object is in its default position and without any transformations. But once I add transformations to the object, the mask is placed in the wrong position. I'm not sure how to solve this. Can someone take a look? I want to be able to apply any transformations, before or after the mask, without messing up the mask. let canvas = new fabric.Canvas("canvas", { backgroundColor: "lightgray", width: 1280, height: 720, preserveObjectStacking: true, selection: false, stateful: true }); canvas.isDrawingMode = true;

Get the canvas object while using fabric js

纵饮孤独 提交于 2019-12-04 23:26:34
I'm using Fabric.js and I've created a fabric canvas object at one place. var x = new fabric.Canvas("mycanvas"); Now at another place, I want to access this object where 'x' won't be available. So how can I get the same fabric canvas object. I don't wanna change the scope of x or pass x as arg. Also, how to get the toDataURL from the fabric canvas object? Assuming that mycanvas is the ID of a Canvas element, you could store the reference to the fabric object on the Canvas element itself: var x = new fabric.Canvas("mycanvas"); document.getElementById("mycanvas").fabric = x; You can then

Avoid overflow in clip area from canvas fabricjs

只谈情不闲聊 提交于 2019-12-04 21:39:42
i am using clip to define drawing area on canvas . when user moves inside object in out defined area then element are not visible but when i save canvas as image they are coming in picture . how can i avoid overflowing ? or restric elements move ?? page screen shot: Saved image :: This can be done using two ways: 1) Clipping the the canvas area within a Rectangle canvas.clipTo = function(ctx) { ctx.beginPath(); var rect = new fabric.Rect({ fill: 'red', opacity: 0, left: 0, top: 0, width: canvas.width, height: canvas.height }); ctx.strokeStyle = 'black'; rect.render(ctx); ctx.stroke(); } 2)

Fabric.js loadSVGFromUrl not displaying multiple imported SVGS

烂漫一生 提交于 2019-12-04 21:32:13
I'm using fabric.js and loading a number of SVG files into it. I have no problem displaying one of these imported files using this code; fabric.loadSVGFromURL('ico-svg/drink.svg', function(objects, options) { var drink = fabric.util.groupSVGElements(objects, options); drink.set({left: 80, top: 175, width: 32, height: 32 }); canvas.add(drink); canvas.calcOffset(); canvas.renderAll(); }); However, when I repeat this code, the page only shows one of the two SVGs, and they actually change upon page refresh - only one icon will show one time, one icon will show the other, on the odd occasion they