Call JavaScript function inside SVG from Surrounding HTML - javascript

I've created a little page just as this one here:
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<script type="text/javascript">
function test() {
executeAnimation();
}
</script>
</head>
<body>
<h1>Tester</h1>
<embed src="test.svg" type="image/svg+xml" />
<hr />
<input type='button' value='Test' onclick='test()' />
</body>
</html>
The test.svg looks like this:
<?xml version="1.0" ?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg id="testSvgId" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="950" height="900">
<title>Title</title>
<desc>Desc</desc>
<defs>
<script type="text/javascript">
<![CDATA[
function executeAnimation () {
document.getElementById('anim').beginElement();
}
]]>
</script>
</defs>
<ellipse cx="500" cy="1090" rx="600" ry="0" fill="rgb(94,114,54)">
<animate id="anim" attributeType="XML" attributeName="ry" begin="indefinite" dur="2s" from="0" to="350" fill="freeze" />
</ellipse>
</svg>
As you can see, I want to call from JavaScript in the HTML page the function executeAnimation() which is defined insite the SVG image. This actually does not work.
I also tried this:
<svg onload='onloadFunction()'...>
...
function onloadFunction() {
alert('i am loading');
window.executeAnimation = executeAnimation();
}
This was suggested in another forum, but this did also not work (window.executeAnimation was undefined from outside).
What would be the real correct way to do this?

Without seeing the source of your .svg, it's impossible to answer specifically...
Check this out: https://codepen.io/lambdacreatives/pen/uygzk
HTML
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="77px" height="77px" viewBox="0 0 77 77" enable-background="new 0 0 77 77" xml:space="preserve">
<g>
<path id="d" fill="#ffffff" d="M49.045,61.112c2.549-1.198,4.867-2.798,6.857-4.743L36.83,13.587c-2.862,0.186-5.602,0.826-8.124,1.899
l6.448,14.465l-15.12,25.387c1.866,2.038,4.044,3.785,6.489,5.118L39.236,39.11L49.045,61.112z"/>
<path id="circle" fill="#ffffff" d="M38.457,67.2c-15.852,0-28.701-12.848-28.701-28.701c0-15.851,12.85-28.697,28.701-28.697
c5.773,0,11.137,1.72,15.639,4.653l4.605-7.702c-6.049-3.873-13.114-5.998-20.359-5.998C17.531,0.754,0.6,17.687,0.6,38.499
c0,20.813,16.932,37.746,37.742,37.746c8.438,0,16.48-2.773,23.061-7.865l-3.809-8.533C52.514,64.405,45.818,67.2,38.457,67.2z">
<animateTransform
xlink:href="#circle"
attributeName="transform"
attributeType="XML"
id="ani-circle"
type="rotate"
from="0 38.501500725746155 38.4994986653327945"
to="360 38.501500725746155 38.4994986653327945"
dur="0.3s"
begin="click"
repeatCount="1"
fill="freeze" />
</path>
</g>
</svg>
<br><br>
<button id="trigger">Trigger Animation</button>
CSS
body {
background-color: black;
text-align: center;
}
svg {
height: 100%;
width: 200px;
path {
fill: white;
}
}
JS
$( "#trigger" ).click(function() {
document.getElementById("ani-circle").beginElement();
});
If you can't work it out from that, post the source of your .svg and I'll knock up a specific answer for you.

Related

Javascript to generate dynamic clip-path for svg

I am working with a svg element which is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<script type="text/javascript" src="https://d3js.org/d3.v7.min.js"></script>
<body>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1280 720">
<rect class="vBoxRect" width="1280" height="720" fill="none" stroke="red"></rect>
<rect class="boundRect" x="70" y="70" width="1160" height="600" fill="none" stroke="green"></rect>
<g class="bound" style="transform: translate(70px, 70px);">
<g class="yAxis">
<g class="yAxisLeft" fill="none" font-size="10" font-family="sans-serif">
<g class="tick" opacity="1" transform="translate(0,411.7647058823529)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">20%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,223.52941176470583)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">40%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,35.29411764705883)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">60%</text>
</g>
</g>
</g>
</g>
</svg>
</body>
<script type="text/javascript"></script>
</html>
With javascript, I intend to generate a svg which will show each yAxis grid line after the text. e.g.
To programmatically generate this, my approach was to generate a clipPath with a rect that starts at x=text.x+text.width and same y,width as the lines and height=text.height and have it apply on each line.
This is what I tried so far
const svgns = 'http://www.w3.org/2000/svg';
document.querySelectorAll('.tick>line').forEach(
(a, i) => {
const defs = document.createElementNS(svgns, 'defs');
document.querySelector('svg').appendChild(defs);
const clipPath = document.createElementNS(svgns, 'clipPath');
clipPath.setAttribute('id', `clip${i}`);
defs.appendChild(clipPath);
const data = document.querySelectorAll('.tick>text');
const rect = document.createElementNS(svgns, 'rect')
rect.setAttribute('x', `${data[i].getBoundingClientRect().x+data[i].getBoundingClientRect().width}`);
rect.setAttribute('y', `${a.getBoundingClientRect().y}`);
rect.setAttribute('height', `${data[i].getBoundingClientRect().height}`)
rect.setAttribute('width', `${a.getBoundingClientRect().width}`)
clipPath.appendChild(rect);
a.style.setProperty('clip-path', `url(#clip${i})`)
}
)
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<script type="text/javascript" src="https://d3js.org/d3.v7.min.js"></script>
<body>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1280 720">
<rect class="vBoxRect" width="1280" height="720" fill="none" stroke="red"></rect>
<rect class="boundRect" x="70" y="70" width="1160" height="600" fill="none" stroke="green"></rect>
<g class="bound" style="transform: translate(70px, 70px);">
<g class="yAxis">
<g class="yAxisLeft" fill="none" font-size="10" font-family="sans-serif">
<g class="tick" opacity="1" transform="translate(0,411.7647058823529)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">20%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,223.52941176470583)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">40%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,35.29411764705883)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">60%</text>
</g>
</g>
</g>
</g>
</svg>
</script>
</html>
I can't figure out what I am doing wrong in this. it does not return what I was intending.
Also, is there a built-in method currentyl exists in javascript that does union/combine/intersect/subtract operations of svg elements?
This worked for me
const svgns = 'http://www.w3.org/2000/svg';
document.querySelectorAll('.tick>line').forEach(
(a,i)=>{
const defs = document.createElementNS(svgns, 'defs');
document.querySelector('svg').appendChild(defs);
const clipPath = document.createElementNS(svgns, 'clipPath');
clipPath.setAttribute('id',`clip${i}`);
defs.appendChild(clipPath);
const data = document.querySelectorAll('.tick>text');
const rect = document.createElementNS(svgns, 'rect')
rect.setAttribute('x', `${data[i].getComputedTextLength()}`);
//rect.setAttribute('y', `${a.getBoundingClientRect().y}`);
rect.setAttribute('height', `${data[i].getBBox().height}`)
rect.setAttribute('width', `${a.x2.baseVal.value-a.x1.baseVal.value}`)
clipPath.appendChild(rect);
a.style.setProperty('clip-path',`url(#clip${i})`)
}
)
const svgns = 'http://www.w3.org/2000/svg';
document.querySelectorAll('.tick>line').forEach(
(a,i)=>{
const defs = document.createElementNS(svgns, 'defs');
document.querySelector('svg').appendChild(defs);
const clipPath = document.createElementNS(svgns, 'clipPath');
clipPath.setAttribute('id',`clip${i}`);
defs.appendChild(clipPath);
const data = document.querySelectorAll('.tick>text');
const rect = document.createElementNS(svgns, 'rect')
rect.setAttribute('x', `${data[i].getComputedTextLength()}`);
//rect.setAttribute('y', `${a.getBoundingClientRect().y}`);
rect.setAttribute('height', `${data[i].getBBox().height}`)
rect.setAttribute('width', `${a.x2.baseVal.value-a.x1.baseVal.value}`)
clipPath.appendChild(rect);
a.style.setProperty('clip-path',`url(#clip${i})`)
}
)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<script type="text/javascript" src="https://d3js.org/d3.v7.min.js"></script>
<body>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1280 720">
<rect class="vBoxRect" width="1280" height="720" fill="none" stroke="red"></rect>
<rect class="boundRect" x="70" y="70" width="1160" height="600" fill="none" stroke="green"></rect>
<g class="bound" style="transform: translate(70px, 70px);">
<g class="yAxis">
<g class="yAxisLeft" fill="none" font-size="10" font-family="sans-serif">
<g class="tick" opacity="1" transform="translate(0,411.7647058823529)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">20%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,223.52941176470583)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">40%</text>
</g>
<g class="tick" opacity="1" transform="translate(0,35.29411764705883)">
<line stroke="currentColor" x2="1160"></line>
<text fill="currentColor" x="0" dy="0.32em">60%</text>
</g>
</g>
</g>
</g>
</svg>
</body>
</html>
d3 equivalent
const clipRectData =d3.selectAll('.tick>text').nodes();
d3.select('svg')
.selectAll('defs')
.data(d3.selectAll('.tick>line'))
.join('defs')
.append('clipPath')
.attr('id', (d, i) => { return `clip${i}` })
.append('rect')
.attr('x', (d, i) => {
return `${clipRectData[i].getComputedTextLength()}`
})
.attr('height', (d, i) => {
return `${clipRectData[i].getBBox().height}`
})
.attr('width', (d, i) => {
return `${d.x2.baseVal.value-d.x1.baseVal.value}`
})
d3.selectAll('.tick>line').style('clip-path', (d, i) => {
return `url(#clip${i})`
})

How do I add an SVG g element from a template?

I am trying to add an SVG g element to an SVG tag using JavaScript. The g element is defined in a template tag. It is in a template tag as I want to reuse it many times.
<!DOCTYPE html>
<html>
<head>
<title>Template Example</title>
<style media="screen">
svg {
margin: auto;
}
g {
stroke:black;
stroke-width:2px;
fill:none;
}
</style>
</head>
<body>
<template>
<g>
<line x1=" 2" y1="2" x2=" 7" y2="7" ></line>
<line x1="25" y1="2" x2="20" y2="7" ></line>
<path class="botLeft" d="m 1,26 6,-6" ></path>
<path class="botRite" d="m 26,26 -6,-6" ></path>
<rect x="1" y="1" rx="3" ry="3" width="25" height="25" ></rect>
<path class="rectIn" d="m 7,7 0,13 13,0 0,-13 z" style="fill:gray;" ></path>
</g>
</template>
<svg width="80%" height="80%" ></svg>
<script type="text/javascript">
var temp = document.getElementsByTagName("template")[0];
var clon = temp.content.cloneNode(true);
var svg = document.getElementsByTagName("svg")[0];
svg.appendChild(clon);
</script>
</body>
</html>
This code adds the g element to the DOM in the correct place, but the element is not rendered.
After reading other posts regarding SVG, I think this is because this is not a normal HTML element, but an SVG Element.
How do I advise the browser to treat this as an SVG element?
I have seen some remarks hinting at namespaces but can not understand what is needed.
Any pointers will be appreciated ;-)
If you put the elements in the SVG itself and embed them with a <defs> tag instead of a <template> tag they will all get created in the right namespace and also be invisible.
<!DOCTYPE html>
<html>
<head>
<title>Template Example</title>
<style media="screen">
svg {
margin: auto;
}
g {
stroke:black;
stroke-width:2px;
fill:none;
}
</style>
</head>
<body>
<svg width="80%" height="80%" >
<defs>
<g>
<line x1=" 2" y1="2" x2=" 7" y2="7" ></line>
<line x1="25" y1="2" x2="20" y2="7" ></line>
<path class="botLeft" d="m 1,26 6,-6" ></path>
<path class="botRite" d="m 26,26 -6,-6" ></path>
<rect x="1" y="1" rx="3" ry="3" width="25" height="25" ></rect>
<path class="rectIn" d="m 7,7 0,13 13,0 0,-13 z" style="fill:gray;" ></path>
</g>
</defs>
</svg>
<script type="text/javascript">
var temp = document.getElementsByTagName("g")[0];
var clon = temp.cloneNode(true);
var svg = document.getElementsByTagName("svg")[0];
svg.appendChild(clon);
var clon2 = temp.cloneNode(true);
clon2.setAttribute("transform", "translate(50,0)");
svg.appendChild(clon2);
</script>
</body>
</html>

Dynamically replace a text element of an svg object

I would like to dynamically replace a text element of an svg object from a local text file. Below my files text et svg:
text file:
<p id="p1">It works fine</p>
text svg:
<svg width="640" height="480" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg">
<rect id="svg_1" height="87" width="162" y="188" x="130" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="5" stroke="blue" fill="yellow"/>
<text xml:space="preserve" text-anchor="start" font-family="serif" font-size="24" id="divA" y="240" x="313" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="0" stroke="#000000" fill="blue"> </text>
</svg>
It works fine with the div or if I put the value, for example dog, for the element svg to modify. below mon fichier html:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
var x = $("#divA").load("demo_test.txt #p1");
var y = $("#div1").load("demo_test.txt #p1");
document.getElementById("div1").textContent = y;
var svg = document.getElementById("textsvg");
var svgDoc = svg.contentDocument;
svgDoc.getElementById("divA").textContent = "dog";
});
</script>
</head>
<body>
<div id="div1"><h2>PSU0 to PDU-A G0-2</h2></div>
<object id="textsvg" width="600" height="480" type="image/svg+xml" data="essai.svg"></object>
</body>
However, when I put the variable y for the text element svg I have the message "[object Object]" instead of the message "It works fine". Below the html file:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
var x = $("#divA").load("demo_test.txt #p1");
var y = $("#div1").load("demo_test.txt #p1");
document.getElementById("div1").textContent = y;
var svg = document.getElementById("textsvg");
var svgDoc = svg.contentDocument;
svgDoc.getElementById("divA").textContent = x;
});
</script>
</head>
<body>
<div id="div1"><h2>PSU0 to PDU-A G0-2</h2></div>
<object id="textsvg" width="600" height="480" type="image/svg+xml" data="essai.svg"></object>
</body>
Can you help me.
Thanks,
B.R,
<script>
$(document).ready(function(){
$("#divA").html("Gorillaz Inc");
});
</script>
This works with jquery
Full example: http://codepen.io/anon/pen/pRRgaP
Note: I didn't use files, I just updated the svg dynamically
I solved part of my problem. I have directly embedded the "svg" into my html.
I noticed that by downloading the text file without the tags: demo_text1.txt the div appears well and the text svg:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("#div1").load("demo_test.txt #p2");
$("#divA").load("demo_test1.txt");
});
</script>
</head>
<body>
<div id="div1"><h2 style="color:blue">PSU0 to PDU-A G0-2</h2></div>
<svg width="800" height="480" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg">
<rect id="svg_1" height="87" width="162" y="20" x="5" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="5" stroke="blue" fill="yellow"/>
<text xml:space="preserve" text-anchor="start" font-family="serif" font-size="14" id="divA" y="67" x="175" stroke-linecap="null" stroke-linejoin="null" stroke-dasharray="null" stroke-width="0" stroke="#000000" fill="blue"> </text>
</svg>
</body>
</html>
fichier text:demo_test.txt
<p id="p1" >It works fine</p>
<p id="p2" style="color:blue">I use the local text file "demo_test.txt".The "div" works fine with tags</p>
fichier text:demo_text1.txt
I use the local text file "demo_test1.txt".
The text of svg works fine without tag but doesn't work with tags
Screen display ok:
enter image description here
However, by pointing the text svg to the text file with the tags (demo_test.txt, it does not work:
Screen not ok:
enter image description here

javascript not working in embed svg file

I just start learning SVG. got this example code from Manipulating SVG Documents Using ECMAScript (Javascript) and the DOM. I change it a little:
<!DOCTYPE html>
<html>
<body>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">
<script type="text/ecmascript">
<![CDATA[
function changeRectColor(evt) {
var red = Math.round(Math.random() * 255);
evt.target.setAttributeNS(null,"fill","rgb("+ red +","+ red+","+red+")");
}
]]>
</script>
<g id="firstGroup">
<rect id="myBlueRect" width="100" height="50" x="40" y="20" fill="blue" onclick="changeRectColor(evt)"/>
<text x="40" y="100">Click on rectangle to change it's color.</text>
</g>
</svg>
</body>
</html>
It works just fine. I move to separated SVG file, then js code stop working:
<!DOCTYPE html>
<html>
<body>
<object type="image/svg+xml" data="exampl3a.svg" />
<script type="text/ecmascript">
<![CDATA[
function changeRectColor(evt) {
var red = Math.round(Math.random() * 255);
evt.target.setAttributeNS(null,"fill","rgb("+ red +","+ red+","+red+")");
}
]]>
</script>
</body>
</html>
SVG file: exampl3a.svg
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">
<g id="firstGroup">
<rect id="myBlueRect" width="100" height="50" x="40" y="20" fill="blue" onclick="changeRectColor(evt)"/>
<text x="40" y="100">Click on rectangle to change it's color.</text>
</g>
</svg>
what should I do?
Thanks
Wes
If you put svg into a different file, then it will be in another document, and you'll need to bind to that document, using getSVGDocument. And yes, this will still not work in Chrome for local files (only for the website, or unless Chrome is run with corresponding command-line switch).
SVG:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="300">
<g id="firstGroup">
<rect id="myBlueRect" width="100" height="50" x="40" y="20" fill="blue" />
<text x="40" y="100">Click on rectangle to change it's color.</text>
</g>
</svg>
HTML
<!DOCTYPE html>
<html>
<body>
<object id='mySvg' type="image/svg+xml" data="example3a.svg" />
<script type="text/ecmascript">
function changeRectColor(evt) {
var red = Math.round(Math.random() * 255);
evt.target.setAttributeNS(null,"fill","rgb("+ red +","+ red+","+red+")");
}
var obj = document.getElementById('mySvg');
obj.addEventListener('load', function() {
var svgDoc= obj.getSVGDocument();
var elem = svgDoc.getElementById("myBlueRect");
elem.addEventListener('click', changeRectColor);
});
</script>
</body>
</html>
This was my experience: It getSVGDocument works on a server (Github worked), but not for local files. If you have an older computer (Windows XP) it will work on that, too.

Change the color of SVG with external source via jquery

I have 3 SVGs shown below. I can only change the color of the inline SVG. Any ideas why? (Code hosted on IIS)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
</head>
<body>
<object id="objectSvg" type="image/svg+xml" data="eq.svg"></object>
<svg id="svg" width="100" height="100" viewBox="0 0 300 300">
<use xlink:href="eq.svg#EarthquakeSymbol"></use>
</svg>
<svg id="inline" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="none" x="0px" y="0px" width="300px" height="300px">
<circle cx="150" cy="150" r="140" stroke="black" stroke-width="20" fill="none"/>
<path id="mypath"stroke="#000000" stroke-width="20" stroke-linejoin="miter" stroke-linecap="butt" stroke-miterlimit="3" fill="none" d="M 35.5 141.55 L 81.05 141.55 108.75 86.1 150.35 223.05 189.4 132.8 207.95 172.5 222.7 141.65 265.8 141.65"/>
</svg>
<script>
$('#objectSvg path').css({ stroke: "#ff0000" });
$('#svg path').css({ stroke: "#ff0000" });
$('#inlineSvg path').css({ stroke: "#ff0000" });</script>
</body>
</html>
I am pretty sure you can't style externally loaded SVGs with css. Why not cut and paste the code from the external SVG into your html like the other two you have?
This is a great resource for information about using SVGs: https://css-tricks.com/using-svg/

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