canvg

merge images from Raphael svg

由 泪湿孤枕 提交于 2019-12-10 12:32:31
问题 Trying to create Step 1 - Let users upload images through Ajax, Raphael and Raphael freetransform. Step 2 - Click button to show one image from merge upload images. (Question): I have found similar post about convert Raphael svg 1 2 3, so I'm using Canvg too but get console.log: Resource interpreted as image but transferred with MIME type text/html error: image "" not found . Please help me find how to solve it. or any clue how to reach same goal(convert several Raphael svg images from upload

draw svg to canvas with canvg

由 心已入冬 提交于 2019-12-10 10:16:58
问题 I use canvg for set svg file in canvas. All is ok when I set svg url: var canvas = doc.getCanvas(num); var context = canvas.getContext('2d'); context.drawSvg("http://localhost:8084/manual.svg", 0, 0, width, height); But when I try to write (it doesn't work): context.drawSvg("data:image/svg+xml,"+svg, 0, 0, width, height); where variable svg get manual.svg content. 回答1: img.src = "data:image/svg+xml;base64,"+btoa(svgContent); context.drawImage(img, 0, 0, width, height); it's one variant to

Styling errors when converting inline SVG to png

由 ≯℡__Kan透↙ 提交于 2019-12-07 16:54:05
问题 My high level goal is to convert a <div> element containing a few inline svg images to a png file. All operations must be performed within the client browser using JavaScript. I have tried: using canvg library and following the steps from this post: https://github.com/niklasvh/html2canvas/issues/95#issuecomment-34439223 original svg: result: flattening the css styles into the <svg> tag and then calling canvg, following the steps from this post: Convert embedded SVG to PNG in-place result: a

canvg doesn't work with svg already placed in body?

由 我们两清 提交于 2019-12-06 08:22:34
问题 I want to converty my SVG into CANVAS and then save it as image. I have svg already genereated by javascript in my page. I use this code: $("#menu-save-image").click(function () { var svg = document.getElementsByTagName('svg'); var canvas = document.getElementById("test"); canvg(canvas, svg); // or second way var c = document.getElementById('test'); var ctx = c.getContext('2d'); ctx.drawSvg(svg, 0, 0, 500, 500); }); Both ways doesn't work. Why? 回答1: canvg method needs SVG source string (or

draw svg to canvas with canvg

由 别等时光非礼了梦想. 提交于 2019-12-06 01:21:56
I use canvg for set svg file in canvas. All is ok when I set svg url: var canvas = doc.getCanvas(num); var context = canvas.getContext('2d'); context.drawSvg("http://localhost:8084/manual.svg", 0, 0, width, height); But when I try to write (it doesn't work): context.drawSvg("data:image/svg+xml,"+svg, 0, 0, width, height); where variable svg get manual.svg content. img.src = "data:image/svg+xml;base64,"+btoa(svgContent); context.drawImage(img, 0, 0, width, height); it's one variant to solve the problem. 来源： https://stackoverflow.com/questions/12899053/draw-svg-to-canvas-with-canvg

Styling errors when converting inline SVG to png

由 陌路散爱 提交于 2019-12-05 19:26:50
My high level goal is to convert a <div> element containing a few inline svg images to a png file. All operations must be performed within the client browser using JavaScript. I have tried: using canvg library and following the steps from this post: https://github.com/niklasvh/html2canvas/issues/95#issuecomment-34439223 original svg: result: flattening the css styles into the <svg> tag and then calling canvg, following the steps from this post: Convert embedded SVG to PNG in-place result: a blank image. flattening the css styles into the <svg> tag and manually drawing the svg onto a canvas,

Dotted line in pdf file with IE 10

由 半城伤御伤魂 提交于 2019-12-02 22:07:54
问题 The graph is the same and correct on browser, Chorme, IE11, IE10, etc.... In IE 11, I press a button to create png file, the result is correct. In IE 10, I press a button to create png file, the result is incorrect, the dotted line of graph change to solid line. I have no idea about this problem, can anyone help me? IE 11: (source: 2.pik.vn) IE 10: (source: 2.pik.vn) This is the code i use to convert from svg to canvas: var svg = document.getElementById("graphP").innerHTML; var canvas =

Dotted line in pdf file with IE 10

由 谁说我不能喝 提交于 2019-12-02 09:47:07
The graph is the same and correct on browser, Chorme, IE11, IE10, etc.... In IE 11, I press a button to create png file, the result is correct. In IE 10, I press a button to create png file, the result is incorrect, the dotted line of graph change to solid line. I have no idea about this problem, can anyone help me? IE 11: (source: 2.pik.vn ) IE 10: (source: 2.pik.vn ) This is the code i use to convert from svg to canvas: var svg = document.getElementById("graphP").innerHTML; var canvas = document.getElementById("canvas"); canvg(canvas, svg); var imgDataP = canvas.toDataURL(); 来源： https:/

Convert SVG to image in PNG

由 无人久伴 提交于 2019-11-30 09:54:13
问题 i am converting angular nvd3 chart to svg using html2canvas and canvg plugings but when i convert pie chart to png then i looks same as chart but when i convert line chart or area chart then its background goes to black and some circle drown on image. My code is var svgElements = $("#container").find('svg'); //replace all svgs with a temp canvas svgElements.each(function () { var canvas, xml; // canvg doesn't cope very well with em font sizes so find the calculated size in pixels and replace

Canvas generated by canvg is blurry on retina screen

由 眉间皱痕 提交于 2019-11-27 15:14:02
问题 I'm using Raphael to draw an object, then transferring it to an HTML canvas element with canvg so that I can use toDataURL to save it as a PNG. But when I use canvg, the resulting image is blurry. The code below, for example, produces this (raphael on top, canvg on bottom): <html> <head> <script src="lib/raphael-min.js"></script> <script type="text/javascript" src="http://canvg.googlecode.com/svn/trunk/rgbcolor.js"></script> <script type="text/javascript" src="http://canvg.googlecode.com/svn
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