How to get parent group content from svg using javascript? - javascript

I want to get the content of <g> tag .
I have tried getElementsByTagName('g') but it returns all <g> in an array , I want just content of outer <g> .
Here is my svg
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Layer_1" x="0px" y="0px" viewBox="0 0 500 500" style="enable-background:new 0 0 500 500;" xml:space="preserve">
<style type="text/css">
.st0{font-family:'MyriadPro-Regular';}
.st1{font-size:117.1799px;}
.st2{fill:#17519D;}
.st3{fill:#E1232E;}
.st4{fill:#FAFDF9;}
</style>
<g>
<text transform="matrix(1 0 0 1 161.3171 175.1665)" class="st0 st1">text</text>
<g id="xe_o3c0">
<g id="xe_6ipa">
<g id="xe_zj3t">
<path id="xe_ce0v" pointer-events="bounding-box" class="st2" d=".4l1."/>
</g>
</g>
</g>
<image style="overflow:visible;" width="728" height="625" xlink:href="http://magento1924.inkxe.com//xetool/assets/magento1924_inkxe_com/images/designs/16.jpg" transform="matrix(0.3073 0 0 0.3073 35.3171 216.8965)">
</image>
</g>
</svg>


Why don't you use id as the selector?
getElementsById('xe_6ipa')


To get the first group element in the SVG, you can use:
getElementsByTagName('g').item(0)


document.querySelector('g') will return the first outer instance that it finds, and returns the node instead of a NodeList.

Related

jQuery: extract top-most SVG element from HTML string with multiple nodes

This question and this question are similar, but the answers do not yield a clean, consistent method for finding the top most SVG element among different HTML strings.
The goal is to extract the top-most SVG element from a HTML string.
$(htmlString).find("svg") does not work.
$($.parseHTML(htmlString)) only generates an array of jQuery objects, but the goal is to turn the htmlString into one jQuery object where you can execute find and retrieve the top-most SVG element.
Example HTML string:
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- Generator: Adobe Illustrator 18.1.1, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Capa_1" x="0px" y="0px" viewBox="0 0 424 424" style="enable-background:new 0 0 424 424;" xml:space="preserve" width="512px" height="512px">
<g>
<g>
<path d="M35,89C15,89,0,74,0,54s15-36,35-36h353c20,0,36,16,36,36s-16,35-36,35H35z" fill="#7c7a7d"/>
<path d="M388,176c20,0,36,16,36,36s-16,35-36,35H35c-20,0-35-15-35-35s15-36,35-36H388z" fill="#7c7a7d"/>
<path d="M388,335c20,0,36,15,36,35s-16,36-36,36H35c-20,0-35-16-35-36s15-35,35-35H388z" fill="#7c7a7d"/>
</g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
<g>
</g>
</svg>
Result of $($.parseHTML(htmlString)), where htmlString is the string above:
$($.parseHTML(htmlString))
w.fn.init(6) [comment, text, comment, text, svg#Capa_1, text]
0: comment
1: text
2: comment
3: text
4: svg#Capa_1
5: text
length: 6

You cannot use find on the result because the markup you give to jQuery doesn't represent a tree: Doctype and comments nodes are siblings of your <svg>.
Thus, you need filter the jQuery entries in order to keep only the svg node:
const $svg = $(`<?xml version="1.0" encoding="utf-8"?>
<!-- comment1 -->
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Capa_1" x="0px" y="0px" viewBox="0 0 424 424">
<g>
<g>
<path d="M35,89C15,89,0,74,0,54s15-36,35-36h353c20,0,36,16,36,36s-16,35-36,35H35z" fill="#7c7a7d"/>
<path d="M388,176c20,0,36,16,36,36s-16,35-36,35H35c-20,0-35-15-35-35s15-36,35-36H388z" fill="#7c7a7d"/>
<path d="M388,335c20,0,36,15,36,35s-16,36-36,36H35c-20,0-35-16-35-36s15-35,35-35H388z" fill="#7c7a7d"/>
</g>
</g>
</svg>`)
.filter((i, el) => $(el).is('svg'));
console.log($svg.attr('id'));
$svg.find('path').attr('fill', 'red');
$('body').append($svg);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Now, you may also want to use a native DOMParser, which might be better at handling namespaces than jQuery. From there, you will have an XMLDocument, whose documentElement will be your <svg> node.
You will then be able to work on it from jQuery:
const str = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Capa_1" x="0px" y="0px" viewBox="0 0 424 424">
<g>
<g>
<path d="M35,89C15,89,0,74,0,54s15-36,35-36h353c20,0,36,16,36,36s-16,35-36,35H35z" fill="#7c7a7d"/>
<path d="M388,176c20,0,36,16,36,36s-16,35-36,35H35c-20,0-35-15-35-35s15-36,35-36H388z" fill="#7c7a7d"/>
<path d="M388,335c20,0,36,15,36,35s-16,36-36,36H35c-20,0-35-16-35-36s15-35,35-35H388z" fill="#7c7a7d"/>
</g>
</g>
</svg>`;
const doc = (new DOMParser).parseFromString(str, 'image/svg+xml');
// use the second argument (context) of jQuery()
const $svg = $('svg', doc);
console.log($svg.attr('id'));
$svg.find('path').attr('fill', 'red');
$('body').append($svg);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Caption an SVG with <text> element?

I am new to working with SVGs. I am trying to caption an svg of a person with that person's name. Here is my attempt:
<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"
viewBox="0 0 258.75 258.75" style="enable-background:new 0 0 258.75 258.75;" xml:space="preserve">
<g>
<circle cx="129.375" cy="60" r="60"/>
<path d="M129.375,150c-60.061,0-108.75,48.689-108.75,108.75h217.5C238.125,198.689,189.436,150,129.375,150z"/>
<text text-anchor="middle" x="60" y="75">Person Name Here</text>
</g>
</svg>
When I try to anchor the text below the image the text disappears. how do I
Change the size of the image?
Leave space at the bottom of the image for the person's name?
Here is the snippet:
var svg = '<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"viewBox="0 0 258.75 258.75" style="enable-background:new 0 0 258.75 258.75;" xml:space="preserve"> <g> <circle cx="129.375" cy="60" r="60"/><path d="M129.375,150c-60.061,0-108.75,48.689-108.75,108.75h217.5C238.125,198.689,189.436,150,129.375,150z"/><text text-anchor="middle" x="60" y="75">Person Name Here</text></g></svg>'
$('#name').append(svg);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p id="name">Hello</p>

This may be what you need:
You can change the size of the image with css, it will scale all your svg.
You just need to give some more space to the viewBox and position your name accordingly.
Hope this helps, snippet:
var svg = '<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"viewBox="0 0 258.75 350.75" style="enable-background:new 0 0 258.75 258.75;" xml:space="preserve"> <style>.style1 {font-size: 15px;} </style> <g> <circle cx="129.375" cy="60" r="60"/><path d="M129.375,150c-60.061,0-108.75,48.689-108.75,108.75h217.5C238.125,198.689,189.436,150,129.375,150z"/><text class="style1" text-anchor="middle" x="125" y="290">Person Name Here</text></g></svg>'
$('#name').append(svg);
svg, object {
width: 200px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p id="name">Hello</p>

Animate bar visible only on circle - svg

How to make this animated green bar visible only on circle?
<svg version="1.1" baseProfile="tiny" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
x="0px" y="0px" width="38px" height="38px" viewBox="0 0 38 38" xml:space="preserve">
<rect id="bar" y="10.962" fill="#02FF74" width="38" height="14.667">
Link to CodePen

With a clipPath you can create a mask.
you have a to create a <circle> inside a <defs> tag( it doesn't render element inside it and make it accessible )
you have to create a clipPath thate takes sizes and position from the circle using <use xlink:href="#circleID"...
you should add the attribute clipPath="url(#clipPathID)" to any element or group of element you want to mask.
<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="200px" height="200px" viewBox="0 0 38 38" enable-background="new 0 0 37.833 37.833" xml:space="preserve">
<g>
<defs>
<circle id="SVGID_1_" cx="19" cy="19" r="19"/>
</defs>
<clipPath id="SVGID_2_">
<use xlink:href="#SVGID_1_" overflow="visible"/>
</clipPath>
<rect id="bar" y="10.962" clip-path="url(#SVGID_2_)" fill="#02FF74" width="38" height="14.667">
<animate fill="freeze" from="40" to="-15" restart="always" dur="2s" attributeName="y" calcMode="linear" additive="replace" accumulate="none" repeatCount="indefinite">
</animate>
</rect>
<g clip-path="url(#SVGID_2_)">
<path d="M19,4.191c8.166,0,14.809,6.643,14.809,14.809S27.166,33.809,19,33.809S4.191,27.165,4.191,19S10.834,4.191,19,4.191
M19,0C8.508,0,0,8.507,0,19s8.508,19,19,19c10.493,0,19-8.507,19-19S29.493,0,19,0L19,0z"/>
<g>
<path d="M19,13.691c2.928,0,5.309,2.381,5.309,5.309S21.928,24.309,19,24.309S13.691,21.927,13.691,19S16.072,13.691,19,13.691
M19,9.5c-5.246,0-9.5,4.253-9.5,9.5s4.254,9.5,9.5,9.5s9.5-4.253,9.5-9.5S24.246,9.5,19,9.5L19,9.5z"/
</g>
</g>
</g>
</svg>
Just edited to show the animated element just inside the black fill of your circles. The process is the same of the previous example, but now The shape of the mask path has been created copying the d=".." attribute value from both black circles:
<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="200" height="200" viewBox="0 0 38 38" enable-background="new 0 0 37.833 37.833" xml:space="preserve">
<g>
<g>
<path d="M19,4.191c8.167,0,14.809,6.643,14.809,14.809c0,8.167-6.643,14.809-14.809,14.809c-8.166,0-14.809-6.645-14.809-14.809
C4.191,10.835,10.834,4.191,19,4.191 M19,0C8.508,0,0,8.507,0,19c0,10.493,8.508,19,19,19c10.493,0,19-8.508,19-19
C38,8.507,29.493,0,19,0L19,0z"/>
<g>
<path d="M19,13.691c2.928,0,5.309,2.381,5.309,5.309c0,2.928-2.381,5.309-5.309,5.309S13.691,21.926,13.691,19
C13.691,16.073,16.072,13.691,19,13.691 M19,9.5c-5.246,0-9.5,4.253-9.5,9.5c0,5.247,4.254,9.5,9.5,9.5
c5.247,0,9.5-4.254,9.5-9.5C28.5,13.753,24.247,9.5,19,9.5L19,9.5z"/>
</g>
</g>
<g>
<defs>
<path id="SVGID_1_" d="M19,4.191c8.167,0,14.809,6.643,14.809,14.809c0,8.167-6.643,14.809-14.809,14.809
c-8.166,0-14.809-6.645-14.809-14.809C4.191,10.835,10.834,4.191,19,4.191 M19,0C8.508,0,0,8.507,0,19c0,10.493,8.508,19,19,19
c10.493,0,19-8.508,19-19C38,8.507,29.493,0,19,0L19,0z M19,13.691c2.928,0,5.309,2.381,5.309,5.309
c0,2.928-2.381,5.309-5.309,5.309S13.691,21.926,13.691,19C13.691,16.073,16.072,13.691,19,13.691 M19,9.5
c-5.246,0-9.5,4.253-9.5,9.5c0,5.247,4.254,9.5,9.5,9.5c5.247,0,9.5-4.254,9.5-9.5C28.5,13.753,24.247,9.5,19,9.5L19,9.5z"/>
</defs>
<clipPath id="SVGID_2_">
<use xlink:href="#SVGID_1_" overflow="visible"/>
</clipPath>
<rect id="bar" y="10.962" clip-path="url(#SVGID_2_)" fill="#02FF74" width="38" height="14.667">
<animate fill="freeze" repeatCount="indefinite" accumulate="none" additive="replace" calcMode="linear" attributeName="y" dur="2s" restart="always" to="-15" from="40">
</animate>
</rect>
</g>
</g>
</svg>

svg!! change text on load

Just wanted to ask is there any way of changing the svg text on load.
Standard SVG examples work just fine.
$(document).ready(function(){
document.getElementById('mySVGText').textContent = 'new_value';
});
it works on this svg
<svg version="1.1"
baseProfile="full"
xmlns="http://www.w3.org/2000/svg" id="mySVG">
<rect width="100%" height="100%" fill="red" />
<circle cx="150" cy="100" r="80" fill="green" />
<text id="mySVGText" name="textName" x="150" y="125" font-size="60" text-anchor="middle" fill="white">SVG</text>
</svg>
but seems like this svg doesnt allow me to getElementById and change the text:
<svg version="1.1"
id="Capa_1"
xmlns="http://www.w3.org/2000/svg"
x="0px" y="0px"
viewBox="0 0 489 489"
style="enable-background:new 0 0 489 489;"
xml:space="preserve"
>
<text id="mySVGText" name="textName" x="160" y="400" font-size="280" text-anchor="middle" fill="blue">SVG</text>
<g>
<path style="fill:white" d="M440.1,422.7l-28-315.3c-0.6-7-6.5-12.3-13.4-12.3h-57.6C340.3,42.5,297.3,0,244.5,0s-95.8,42.5-96.6,95.1H90.3
c-7,0-12.8,5.3-13.4,12.3l-28,315.3c0,0.4-0.1,0.8-0.1,1.2c0,35.9,32.9,65.1,73.4,65.1h244.6c40.5,0,73.4-29.2,73.4-65.1
C440.2,423.5,440.2,423.1,440.1,422.7z M244.5,27c37.9,0,68.8,30.4,69.6,68.1H174.9C175.7,57.4,206.6,27,244.5,27z M366.8,462
H122.2c-25.4,0-46-16.8-46.4-37.5l26.8-302.3h45.2v41c0,7.5,6,13.5,13.5,13.5s13.5-6,13.5-13.5v-41h139.3v41
c0,7.5,6,13.5,13.5,13.5s13.5-6,13.5-13.5v-41h45.2l26.9,302.3C412.8,445.2,392.1,462,366.8,462z"/>
</g>
</svg>
Any help would be appreciated.

So that this doesn't show up as unanswered:
The problem was that there were two elements with the id mySVGText on the page. document.getElementById assumes that each id on the page is unique, so it can have unexpected behavior when they aren't.

After dynamically adding element to SVG the item is not visible

I am creating a custom map that is drawn in an SVG. I want to add a polygon to this map,
however after adding the polygon it is not drawn. If I paste the complete page into an .html file and open it, it does show (http://peterelzinga.eu/map/test.html).
The code for adding the polygon to my SVG:
var svg = file_get_contents("18/135160/86183.svg");
var parser = new DOMParser();
var data = parser.parseFromString(svg, "text/xml");
data = data.firstChild;
console.log(data);
data.setAttribute ("x", d);
data.setAttribute ("y", e);
document.getElementById('front').appendChild(data);
The SVG element after adding the polygon:
<svg id="map" xmlns="http://www.w3.org/2000/svg" version="1.1" width="512" height="512">
<g id="back">
<image xlink:href="12/2110/1345.png" x="0" y="0" width="256" height="256"></image>
</g>
<g id="front">
<g width="256" height="256" x="0" y="0">
<polyline fill="#FFFFFF" stroke="#000000" stroke-miterlimit="10" points="256,85.333 209,100.667 230.334,158.334 143,194.334 160.667,248.667 221.667,223.667 256,241.334 " onclick="alert('St Jansdal')"></polyline>
</g>
</g>
</svg>
Does anyone know why this happens?

From Mozilla docs: https://developer.mozilla.org/en-US/docs/Web/API/DOMParser
You should specify the content type as "image/svg+xml" to get a SVGDocument.
The problem is that your generated nodes are not SVG nodes, but XML nodes.
I had a similar problem solved by switching from createElement to createElementNS. See answer: jquery's append not working with svg element?

Why the above won't work is still a mistery to me. However, i did manage to resolve the problem by using the following solution:
The javascript function to load and add an new svg element - which contains our polyline - to the main element:
var api = new XMLHttpRequest;
api.open("GET", a+"/"+b+"/"+c+".svg", false);
api.send("");
if( api.status == 200 ) {
var parser = new DOMParser();
var data = parser.parseFromString(api.responseText, "text/xml");
data = data.firstChild;
console.log(data);
data.setAttribute("x", d);
data.setAttribute("y", e);
document.getElementById('front').appendChild(data);
}
Now instead of only having the polyline element in the .svg file, I have put a complete svg element in the file:
<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="256px" height="256px" viewBox="0 0 256 256" enable-background="new 0 0 256 256" xml:space="preserve">
<polyline fill="#FFFFFF" points="0,97 45,81.333 51.667,100.667 13.667,117.333 31,164 142.167,119.5 127.167,75.001
172.667,53.341 152.5,0 0,0 "/>
</svg>
And this does work. By setting the X and Y values of the I can position the svg in the correct spot so the polyline is drawn in the right place.
The endresult:
<svg id="map" xmlns="http://www.w3.org/2000/svg" version="1.1" width="512" height="512">
<g id="back">
<image xlink:href="18/135160/86183.png" x="0" y="0" width="256" height="256"></image>
<image xlink:href="18/135161/86183.png" x="256" y="0" width="256" height="256"></image>
<image xlink:href="18/135160/86184.png" x="0" y="256" width="256" height="256"></image>
<image xlink:href="18/135161/86184.png" x="256" y="256" width="256" height="256"></image>
</g>
<g id="front">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Layer_1" x="0" y="0" width="256px" height="256px" viewBox="0 0 256 256" enable-background="new 0 0 256 256" xml:space="preserve">
<polyline name="St. Jansdal" fill="#FFFFFF" points="256,84.75 209,100.75 230.75,157.5 142.5,194.25 160.75,248.5 221.75,223.75 256,241 "></polyline>
</svg>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Layer_1" x="256" y="0" width="256px" height="256px" viewBox="0 0 256 256" enable-background="new 0 0 256 256" xml:space="preserve">
<polyline name="St. Jansdal" fill="#FFFFFF" points="0,85.336 6.333,82.669 44,180.336 86,200.669 135.333,181.002 155.667,138.669 136.667,82.669 190,63.669 202,94.336 256,76.002 256,137.336 219.333,151.336 184.333,219.669 188.333,228.669 231.333,252.669 256,243.336 256,256 30,256 0,240.669 "></polyline>
</svg>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="256" y="256" width="256px" height="256px" viewBox="0 0 256 256" enable-background="new 0 0 256 256" xml:space="preserve">
<polyline name="St. Jansdal" fill="#FFFFFF" points="31.25,0 78.5,24 82.75,29.75 82.75,34.75 81.5,40 74.5,52.5 0,80.75 0,134.25 64.25,110 87.25,120 120.75,207.5 133.5,212.25 133.5,206 139.25,199.75 150,197.75 154,198.75 162,202.25 165.25,191.5 122.5,76.25 129.5,61.75 135.25,55 138.75,53.25 141.5,53.25 144.5,53.75 235.25,93.75 239.5,103.75 256,97.75 256,0 "></polyline>
</svg>
</g>
</svg>

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