Develop Reference

SVG connect two points with a line, and automatically update the line if a point is moved

I'd like to connect two points (circles) with a line:
window.onclick = () => {
document.getElementById('c2').setAttribute("cx", 150);
}
<svg>
<circle cx="10" cy="10" r="2" id="c1" />
<circle cx="90" cy="50" r="2" id="c2" />
<line x1="10" y1="10" x2="90" y2="50" stroke="black" />
</svg><br>
Click here to move a circle.
such that if I modify the center of any <circle> with setAttribute("cx", 150) then the line automatically follows the new circle position.
Is there a way to do this with <use>? Something like (pseudo-code):
<svg>
<circle cx="10" cy="10" r="2" id="c1" />
<circle cx="90" cy="50" r="2" id="c2" />
<use x1=xlink:c1:cx y1=xlink:c1:cy x2=xlink:c2:cx y2=xlink:c2:cy stroke="black" type="line" />
</svg>
Goal: I don't want to have to set the coordinates two times, in both the circle and line. Instead I would like to set the coordinates once, and that the line uses a reference to the circle elements.
Note: I have read SVG connect two points with a line but it did not help.

You can use a <marker> that can be placed on start, middle and end of an element.
window.onclick = () => {
document.getElementById('l1').setAttribute("x2", 150);
}
<svg viewBox="0 0 200 100" width="200">
<defs>
<marker id="circle" viewBox="0 0 4 4" refX="2"
refY="2" markerWidth="4" markerHeight="4">
<circle cx="2" cy="2" r="2" />
</marker>
</defs>
<line id="l1" x1="10" y1="10" x2="90" y2="50" stroke="black"
marker-start="url(#circle)" marker-end="url(#circle)"/>
</svg><br>
Click here to move a circle.

Insert SVG document into HTML dynamically using JavaScript?

How can I dynamically insert an SVG into HTML?
The problem right now is that the SVG is a document, and I can only find how to insert nodes. I have tried some different things to convert the SVG to a node, but have not found anything that works.
const svgDoc = new DOMParser().parseFromString(svgText, "text/html");
window.document.querySelector("#container").appendChild(svgDoc);
const svgText = `<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 400" preserveAspectRatio="xMidYMid meet">
<title>My First Scalable Vector Graphic</title>
<desc>An experimental SVG from SitePoint.com</desc>
<g id="main">
<line x1="10" y1="10" x2="100" y2="200" stroke="#00c" stroke-width="5" stroke-linecap="round" />
<polyline points="580,10 560,390 540,200 520,390 400,390" stroke="#c00" stroke-width="5" stroke-linecap="round" stroke-linejoin="round" fill="none" />
<polygon points="350,75 379,161 469,161 397,215 423,301 350,250 277,301 303,215 231,161 321,161" stroke="#ff0" stroke-width="10" fill="#ffc" />
<rect x="100" y="10" width="150" height="100" rx="10" ry="20" stroke="#060" stroke-width="8" fill="#0f0" />
<circle cx="100" cy="300" r="80" stroke="#909" stroke-width="10" fill="#f6f" />
<ellipse cx="450" cy="50" rx="80" ry="30" stroke="#0cc" stroke-width="10" fill="#0ff" />
<text x="240" y="390" font-family="sans-serif" font-size="50" fill="#00f">SVG</text>
</g>
</svg>
`;
<div id="container"></div>

Use document.documentElement to get the root element of a document.
const svgText = `<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 400" preserveAspectRatio="xMidYMid meet">
<title>My First Scalable Vector Graphic</title>
<desc>An experimental SVG from SitePoint.com</desc>
<g id="main">
<line x1="10" y1="10" x2="100" y2="200" stroke="#00c" stroke-width="5" stroke-linecap="round" />
<polyline points="580,10 560,390 540,200 520,390 400,390" stroke="#c00" stroke-width="5" stroke-linecap="round" stroke-linejoin="round" fill="none" />
<polygon points="350,75 379,161 469,161 397,215 423,301 350,250 277,301 303,215 231,161 321,161" stroke="#ff0" stroke-width="10" fill="#ffc" />
<rect x="100" y="10" width="150" height="100" rx="10" ry="20" stroke="#060" stroke-width="8" fill="#0f0" />
<circle cx="100" cy="300" r="80" stroke="#909" stroke-width="10" fill="#f6f" />
<ellipse cx="450" cy="50" rx="80" ry="30" stroke="#0cc" stroke-width="10" fill="#0ff" />
<text x="240" y="390" font-family="sans-serif" font-size="50" fill="#00f">SVG</text>
</g>
</svg>
`;
const svgDoc = new DOMParser().parseFromString(svgText, "image/svg+xml");
window.document.querySelector("#container").appendChild(svgDoc.documentElement);
<div id="container"></div>

How to center an SVG element based on another element using js?

I made an SVG face and want to center each pupil in their respective eye.
I tried doing this by getting the center of the eye using getBoundingClientRect(). However when I set the position of the pupil this way it didn't work as expected (it did not center, and changes location based on size of page).
I'm guessing getBoundingClientRect() is related to a global position and the cx, cy attributes are local, but it's not clear to me what the attributes are local to or how I would fix it
Any ideas why this doesn't work and what approach might fix it?
Code
// Center the pupil in the eye. Side param is "left" or "right"
function center_pupil(side) {
let eye = document.querySelector(`#${side}-eye`).getBoundingClientRect()
let pupil = document.querySelector(`#${side}-pupil`)
let pupil_radius = pupil.getAttribute("r")
pupil.setAttribute("cx", eye.left + eye.width / 2 - pupil_radius)
pupil.setAttribute("cy", eye.top + eye.height / 2 - pupil_radius)
}
center_pupil("left")
center_pupil("right")
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 645.72 579.45">
<defs>
<clipPath id="clip-path" transform="translate(-114.91 -242.55)">
<path d="M544,377s9-21,54-25c0,0,114-7,150,25s-43,86-43,86-33.77,18.6-79.06,11.62C615.11,473,587.67,468.87,563,448c-10.53-8.91-25.76-21.79-27-42C535.2,393.05,540.49,382.61,544,377Z"
fill="none" />
</clipPath>
<clipPath id="clip-path-2" transform="translate(-114.91 -242.55)">
<path d="M117.5,397.5a38.69,38.69,0,0,1,8-11c6.89-6.57,14.55-8.78,19-10,32.47-8.93,45-10,45-10,34.68-2.95,53.54-4.56,81-1,33.83,4.38,50.79,6.54,61,21,13.58,19.24,5,45.13,4,48-6.94,20.08-23.19,30.46-35,38a106,106,0,0,1-29.07,12.82,108,108,0,0,1-39.93,3.18c-4.63.72-54.1,7.55-88.32-28.91C120.39,435.31,117.91,406.25,117.5,397.5Z"
fill="none" />
</clipPath>
</defs>
<title>face</title>
<g id="eyes">
<g id="right-eye">
<path d="M540.89,375.37A28.23,28.23,0,0,1,548.4,367a24,24,0,0,1,2.19-1.6c.76-.5,1.5-1,2.26-1.48,1.56-.86,3.07-1.81,4.67-2.55s3.14-1.57,4.76-2.23c.8-.34,1.6-.69,2.39-1.06l2.42-.94c.81-.31,1.61-.65,2.42-1s1.64-.56,2.46-.85l2.46-.81a25.18,25.18,0,0,1,2.49-.73c1.68-.43,3.34-.91,5-1.36s3.38-.71,5.07-1.07l2.54-.55,2.56-.41,5.14-.82c1.81-.26,3.45-.36,5.17-.53l5.12-.43q5.12-.4,10.23-.65a289.41,289.41,0,0,1,41,.71c6.82.65,13.62,1.57,20.39,2.63s13.51,2.37,20.23,3.71,13.41,2.9,20.15,4.54c1.69.38,3.36.86,5,1.36l2.51.73c.83.26,1.65.58,2.48.87l2.47.9c.82.3,1.61.71,2.42,1.05a49,49,0,0,1,4.78,2.33,52.84,52.84,0,0,1,4.63,2.72l2.26,1.48c.75.49,1.44,1.12,2.16,1.68l2.12,1.72c.67.65,1.37,1.27,2,2a30,30,0,0,1,3.57,4.42c.57.78,1,1.65,1.5,2.47s.88,1.73,1.21,2.64a25.41,25.41,0,0,1,1.57,5.59,29.78,29.78,0,0,1-.37,11.31c-4.58,14.09-13,25.18-22.33,35.35a178.89,178.89,0,0,1-14.84,14.31q-3.88,3.39-8,6.53c-2.72,2.11-5.44,4.15-8.32,6.15l-.11.08-.1.05c-2.33,1.23-4.54,2.18-6.86,3.13s-4.62,1.77-7,2.58c-4.68,1.57-9.43,2.87-14.23,4a151.83,151.83,0,0,1-29.28,3.67c-2.46,0-4.93.12-7.39.07l-7.41-.31-7.38-.71c-2.46-.23-4.85-.58-7.3-.93a131.55,131.55,0,0,1-28.88-7.35,114.07,114.07,0,0,1-13.69-6.28c-2.25-1.13-4.38-2.49-6.55-3.78-1.08-.65-2.09-1.41-3.14-2.11s-2.12-1.4-3.1-2.19a143.74,143.74,0,0,1-11.34-9.74,83.58,83.58,0,0,1-10.05-11.51A57.13,57.13,0,0,1,535.46,420a53.51,53.51,0,0,1-2.89-15.38,48.4,48.4,0,0,1,2-15.44,50,50,0,0,1,2.7-7.28c.54-1.17,1.12-2.32,1.76-3.44.31-.56.64-1.11,1-1.65S540.59,375.83,540.89,375.37Zm6.22,3.26c-.75,1.3-1.25,2.21-1.77,3.23s-1,2-1.52,3a56.3,56.3,0,0,0-2.49,6.29,41.51,41.51,0,0,0-2,13.2,34.3,34.3,0,0,0,2.84,12.95,45.72,45.72,0,0,0,7.15,11.32,91.37,91.37,0,0,0,9.77,9.7c3.46,3.07,7.29,6.18,10.83,9a112.56,112.56,0,0,0,23.73,14.54,121.21,121.21,0,0,0,13.15,5,135,135,0,0,0,13.72,3.63c2.31.47,4.7,1,7,1.32s4.69.73,7,1l7.1.56c2.37.13,4.75.12,7.13.18a128.42,128.42,0,0,0,28.29-3.39,135,135,0,0,0,13.69-4c2.23-.81,4.46-1.64,6.63-2.57s4.39-1.91,6.33-3l-.21.13c5.43-3.8,10.71-8.06,15.86-12.34s10.1-8.85,14.78-13.63a103.24,103.24,0,0,0,12.64-15.43,47.41,47.41,0,0,0,4.69-8.65,40.34,40.34,0,0,0,2.28-9.25,33.29,33.29,0,0,0,.35-4.54,22.19,22.19,0,0,0-.46-4.4,20.11,20.11,0,0,0-1.34-4.15c-.25-.67-.64-1.3-1-1.95s-.74-1.27-1.2-1.86a29.21,29.21,0,0,0-6.38-6.48c-.62-.47-1.2-1-1.86-1.44l-2-1.34a46,46,0,0,0-4.12-2.49c-11.39-6-24.05-11.23-37.37-13.24-13.25-2.37-26.77-3-40.22-3.48s-26.92-1-40.43-1.38l-10.13-.24-5.07-.07c-1.66,0-3.42,0-5,0a108.23,108.23,0,0,0-19.78,2.72,24.43,24.43,0,0,0-2.41.65l-2.39.72a43.68,43.68,0,0,0-4.71,1.63c-.77.32-1.55.6-2.3.94s-1.48.75-2.21,1.14-1.47.74-2.17,1.18l-2.06,1.35-1,.68c-.33.24-.64.51-1,.76l-1.9,1.53c-.6.54-1.18,1.11-1.76,1.65a20.72,20.72,0,0,0-1.67,1.71c-.54.58-1.07,1.17-1.54,1.78a21.79,21.79,0,0,0-1.41,1.83l-.66.93-.59.93c-.21.31-.34.62-.52.93-.09.15-.15.29-.22.43Z"
transform="translate(-114.91 -242.55)" />
</g>
<path d="M505,327" transform="translate(-114.91 -242.55)" />
<g id="left-eye">
<path d="M114.91,397a8.77,8.77,0,0,1,.41-1.29c.07-.21.14-.43.22-.65.15-.43.33-.85.52-1.27a23.67,23.67,0,0,1,1.3-2.43,33.63,33.63,0,0,1,3.35-4.38,39.68,39.68,0,0,1,8.37-7.14,45.38,45.38,0,0,1,9.88-4.59c3.45-1.11,6.75-1.8,10-2.64,6.64-1.59,13.29-3.11,20-4.49,3.35-.68,6.71-1.32,10.08-1.9,1.69-.29,3.38-.58,5.08-.84l2.56-.36,1.29-.16.66-.08.33,0,.17,0,.34,0h-.15l10-.79c3.36-.27,6.71-.48,10.05-1s6.66-1.26,10-1.68,6.74-.55,10.13-.72c6.78-.27,13.6-.4,20.41-.06s13.6.93,20.33,1.86,13.33,1.84,20,2.91a156,156,0,0,1,20.08,4.29c.83.26,1.66.55,2.49.83s1.65.56,2.47.91l2.45,1,2.4,1.19a37.88,37.88,0,0,1,8.79,6.29,39.43,39.43,0,0,1,6.43,8.62,19,19,0,0,1,1.21,2.38l1.11,2.43.86,2.52a18.46,18.46,0,0,1,.77,2.53,57.7,57.7,0,0,1,1.39,20.78,77.82,77.82,0,0,1-1.71,10.2c-.41,1.68-.84,3.35-1.38,5s-1.2,3.27-1.82,4.9a80.14,80.14,0,0,1-10.73,18l-.83,1-.87,1c-.6.64-1.17,1.32-1.79,1.94-1.24,1.23-2.49,2.46-3.82,3.59a93.34,93.34,0,0,1-8.31,6.24c-1.42.95-2.85,1.9-4.28,2.81s-2.82,1.81-4.32,2.74q-4.45,2.71-9.14,5a111.57,111.57,0,0,1-19.45,7.27,109.85,109.85,0,0,1-41.18,3l.81,0a96.63,96.63,0,0,1-10.64.84c-3.53.09-7.06,0-10.58-.18a118,118,0,0,1-20.88-3.16A104.42,104.42,0,0,1,170,482a97.9,97.9,0,0,1-18-11.15,94.11,94.11,0,0,1-26.21-32.74,104.55,104.55,0,0,1-7.36-19.73q-1.36-5.09-2.24-10.3c-.28-1.74-.57-3.48-.77-5.23-.12-.87-.2-1.75-.29-2.63l-.07-.66-.07-.86C114.94,398.15,114.92,397.55,114.91,397Zm5.18,1.08a7,7,0,0,1,.08.79l0,1.06c.05.83.09,1.67.17,2.5.11,1.68.31,3.34.51,5,.46,3.33,1.1,6.63,1.88,9.91.39,1.63.86,3.25,1.32,4.86s1,3.21,1.62,4.78c1.17,3.15,2.48,6.25,4,9.27a87.88,87.88,0,0,0,42.45,41.16,99.57,99.57,0,0,0,19,6.34,112.17,112.17,0,0,0,19.92,2.62c3.35.14,6.71.15,10.05,0a89,89,0,0,0,9.9-.94l.38-.06.43,0a105.31,105.31,0,0,0,19.53.1A110.47,110.47,0,0,0,270.55,482a104.55,104.55,0,0,0,18.21-6.92,96.58,96.58,0,0,0,8.52-4.71c1.36-.84,2.79-1.77,4.18-2.67s2.76-1.83,4.12-2.75c2.72-1.85,5.3-3.82,7.85-5.8s5-4,7.4-6.21a51.27,51.27,0,0,0,6.53-7.12,42.86,42.86,0,0,0,4.84-8.38,61.67,61.67,0,0,0,4.57-18.91,52.32,52.32,0,0,0-1.7-19.18,18.18,18.18,0,0,0-.76-2.26l-.84-2.22-1.06-2.12a16.05,16.05,0,0,0-1.13-2.08,35,35,0,0,0-5.82-7.29,34.22,34.22,0,0,0-7.68-5.19l-2.14-1-2.23-.86c-.73-.3-1.5-.55-2.27-.78s-1.53-.49-2.31-.71a160.49,160.49,0,0,0-19.39-3.74c-6.59-.93-13.26-1.73-19.92-2.52a264.5,264.5,0,0,0-39.7-1.74c-3.33.07-6.65.33-10,.27s-6.72-.28-10.08-.29a96.26,96.26,0,0,0-10.05.57l-10,.9h-.16l-2.26.33-2.48.41c-1.65.29-3.3.61-4.95.95-3.3.7-6.59,1.48-9.87,2.28-6.56,1.62-13.08,3.42-19.58,5.32-3.23,1-6.56,1.86-9.53,3a39,39,0,0,0-8.42,4.28,34.43,34.43,0,0,0-6.92,6.22,46.51,46.51,0,0,0-2.8,3.73l-1.37,1.92-.7,1-.37.48A.39.39,0,0,0,120.09,398Z"
transform="translate(-114.91 -242.55)" />
</g>
</g>
<g clip-path="url(#clip-path)">
<circle id="right-pupil" cx="532.09" cy="125.45" r="31" />
</g>
<g clip-path="url(#clip-path-2)">
<circle id="left-pupil" cx="116.59" cy="139.95" r="31" />
</g>
<g id="Layer_4" data-name="Layer 4">
<path d="M505,264s120-29,194-10" transform="translate(-114.91 -242.55)" fill="none" stroke="#000"
stroke-miterlimit="10" stroke-width="10" />
<path d="M154,280s116-27,179,0" transform="translate(-114.91 -242.55)" fill="none" stroke="#000"
stroke-miterlimit="10" stroke-width="10" />
<path d="M390,401c9.15,143.49,6.63,190.63,2,205,0,0-6.53,20.28-2,41a35.35,35.35,0,0,0,4,10s1.3,2.14,8,10"
transform="translate(-114.91 -242.55)" fill="none" stroke="#000" stroke-miterlimit="10"
stroke-width="10" />
<line x1="321.09" y1="415.45" x2="329.09" y2="424.45" fill="none" stroke="#000" stroke-miterlimit="10"
stroke-width="10" />
<path d="M363,774l146-4s-1,47-73,47S363,774,363,774Z" transform="translate(-114.91 -242.55)" fill="none"
stroke="#000" stroke-miterlimit="10" stroke-width="10" />
</g>
</svg>
What I'm currently seeing
Note: pupil location changes based on screen size

SVG: redundant circle when using animateMotion

I am using animateMotion to have an animation on my path. Here is the simple code:
<!DOCTYPE html>
<html>
<head>
<title>Example Of Many Things!</title>
</head>
<body>
<svg width="465pt" height="188pt" viewBox="0.00 0.00 465.00 188.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 184)">
<g id="3" class="cluster loop-node">
</g>
<g id="4" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M92.6667,-53C92.6667,-53 119.3333,-53 119.3333,-53 121.6667,-53 124,-55.3333 124,-57.6667 124,-57.6667 124,-62.3333 124,-62.3333 124,-64.6667 121.6667,-67 119.3333,-67 119.3333,-67 92.6667,-67 92.6667,-67 90.3333,-67 88,-64.6667 88,-62.3333 88,-62.3333 88,-57.6667 88,-57.6667 88,-55.3333 90.3333,-53 92.6667,-53"></path>
<text text-anchor="start" x="100.6663" y="-57.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:12</text>
</g>
<g id="5" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M167.3333,-25C167.3333,-25 195.6667,-25 195.6667,-25 199.3333,-25 203,-28.6667 203,-32.3333 203,-32.3333 203,-39.6667 203,-39.6667 203,-43.3333 199.3333,-47 195.6667,-47 195.6667,-47 167.3333,-47 167.3333,-47 163.6667,-47 160,-43.3333 160,-39.6667 160,-39.6667 160,-32.3333 160,-32.3333 160,-28.6667 163.6667,-25 167.3333,-25"></path>
<text text-anchor="start" x="176.1663" y="-33.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:13</text>
</g>
<g id="4t5" class="edge">
<path fill="none" stroke="#717070" d="M124.2764,-54.1903C133.5025,-51.2575 144.8656,-47.6454 155.028,-44.4149" id="path4t5"></path>
<polygon fill="#717070" stroke="#717070" points="155.6709,-46.0469 159.9058,-42.8644 154.6106,-42.7114 155.6709,-46.0469"></polygon>
<g id="6" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M246.3333,-25C246.3333,-25 274.6667,-25 274.6667,-25 278.3333,-25 282,-28.6667 282,-32.3333 282,-32.3333 282,-39.6667 282,-39.6667 282,-43.3333 278.3333,-47 274.6667,-47 274.6667,-47 246.3333,-47 246.3333,-47 242.6667,-47 239,-43.3333 239,-39.6667 239,-39.6667 239,-32.3333 239,-32.3333 239,-28.6667 242.6667,-25 246.3333,-25"></path>
<text text-anchor="start" x="255.1663" y="-33.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:14</text>
</g>
<g id="5t6" class="edge">
<path fill="none" stroke="#717070" d="M203.0871,-36C212.5795,-36 223.8229,-36 233.8327,-36" id="path5t6"></path>
<polygon fill="#717070" stroke="#717070" points="233.939,-37.7501 238.939,-36 233.939,-34.2501 233.939,-37.7501"></polygon>
</g>
</g>
</svg>
</body>
<script type="text/javascript">
var g8t3 = document.getElementById('4t5');
var path = document.getElementById('4t5').getElementsByTagName('path')[0]
path.setAttribute("id", "path4t5");
var circleAnim = ' <circle r="1" fill="green"><animateMotion id="myMoveAnimation4t5" dur="3s" begin="0s;myMoveAnimation5t6.end"><mpath xlink:href="#path4t5"></mpath></animateMotion></circle>'
g8t3.insertAdjacentHTML( 'beforeend', circleAnim );
// // now move circle on the path
var g8t4 = document.getElementById('5t6');
var path = document.getElementById('5t6').getElementsByTagName('path')[0]
path.setAttribute("id", "path5t6");
var circleAnim = ' <circle r="1" fill="green"><animateMotion id="myMoveAnimation5t6" dur="3s" begin="myMoveAnimation4t5.end"><mpath xlink:href="#path5t6"></mpath></animateMotion></circle>'
g8t4.insertAdjacentHTML( 'beforeend', circleAnim );
</script></html>
As you can see, there is a green circle on the path which is moving, which is correct.
But there is something weird: There is also another green circle on the left bottom of the graph, which is redundant. I don't how it appears and how I can get rid of it.
Any help?

Instead of appending two circles in your svg, append the two <animateMotion>s inside a single circle. Also, you'll probably want to set your <animationMotion>'s fill attribute to "fill".
As you wrote it, when your circles are in idle state, they will come back to their initial position (unset).
var g8t3 = document.getElementById('4t5');
var path = document.getElementById('4t5').getElementsByTagName('path')[0]
path.setAttribute("id", "path4t5");
var circleAnim = '<circle r="1" fill="green">' +
// first part of the anim
'<animateMotion id="myMoveAnimation4t5" dur="3s" begin="0s;myMoveAnimation5t6.end"><mpath xlink:href="#path4t5" fill="freeze"></mpath></animateMotion>' +
// second part of the anim
'<animateMotion id="myMoveAnimation5t6" dur="3s" begin="myMoveAnimation4t5.end" fill="freeze"><mpath xlink:href="#path5t6"></mpath></animateMotion>' +
'</circle>'
g8t3.insertAdjacentHTML('beforeend', circleAnim);
<svg width="465pt" height="188pt" viewBox="0.00 0.00 465.00 188.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 184)">
<g id="3" class="cluster loop-node">
</g>
<g id="4" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M92.6667,-53C92.6667,-53 119.3333,-53 119.3333,-53 121.6667,-53 124,-55.3333 124,-57.6667 124,-57.6667 124,-62.3333 124,-62.3333 124,-64.6667 121.6667,-67 119.3333,-67 119.3333,-67 92.6667,-67 92.6667,-67 90.3333,-67 88,-64.6667 88,-62.3333 88,-62.3333 88,-57.6667 88,-57.6667 88,-55.3333 90.3333,-53 92.6667,-53"></path>
<text text-anchor="start" x="100.6663" y="-57.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:12</text>
</g>
<g id="5" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M167.3333,-25C167.3333,-25 195.6667,-25 195.6667,-25 199.3333,-25 203,-28.6667 203,-32.3333 203,-32.3333 203,-39.6667 203,-39.6667 203,-43.3333 199.3333,-47 195.6667,-47 195.6667,-47 167.3333,-47 167.3333,-47 163.6667,-47 160,-43.3333 160,-39.6667 160,-39.6667 160,-32.3333 160,-32.3333 160,-28.6667 163.6667,-25 167.3333,-25"></path>
<text text-anchor="start" x="176.1663" y="-33.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:13</text>
</g>
<g id="4t5" class="edge">
<path fill="none" stroke="#717070" d="M124.2764,-54.1903C133.5025,-51.2575 144.8656,-47.6454 155.028,-44.4149" id="path4t5"></path>
<polygon fill="#717070" stroke="#717070" points="155.6709,-46.0469 159.9058,-42.8644 154.6106,-42.7114 155.6709,-46.0469"></polygon>
<g id="6" class="node cu-node">
<path fill="#ffffff" stroke="#a4a4a4" d="M246.3333,-25C246.3333,-25 274.6667,-25 274.6667,-25 278.3333,-25 282,-28.6667 282,-32.3333 282,-32.3333 282,-39.6667 282,-39.6667 282,-43.3333 278.3333,-47 274.6667,-47 274.6667,-47 246.3333,-47 246.3333,-47 242.6667,-47 239,-43.3333 239,-39.6667 239,-39.6667 239,-32.3333 239,-32.3333 239,-28.6667 242.6667,-25 246.3333,-25"></path>
<text text-anchor="start" x="255.1663" y="-33.6" font-family="font-awesome" font-size="6.00" fill="#000000">1:14</text>
</g>
<g id="5t6" class="edge">
<path fill="none" stroke="#717070" d="M203.0871,-36C212.5795,-36 223.8229,-36 233.8327,-36" id="path5t6"></path>
<polygon fill="#717070" stroke="#717070" points="233.939,-37.7501 238.939,-36 233.939,-34.2501 233.939,-37.7501"></polygon>
</g>
</g>
</g>
</svg>

d3js / nvd3 - graph half hidden

I have a d3 / nvd3 graph which seems to be "clipped" by half...
Hereafter is the code (sorry, quite long, but a copy/paste in an html file works). Normally I have one bar by hour (so 24 bars) here I put only three hours.
The html is splitter in sections :
The legend [g class="nv-x nv-axis" transform="translate(0,235)"]
Y axis: [g class="nv-y nv-axis"]
One bar by hours: [g class="nv-barsWrap"]
We see only the top half of the Y axis and Bars, the bottom legend is lost. But it does exist on the html ! and we can "inspect" it... I don't get what is happening, but there is this "clip" rectangle I don't master... ( [clipPath id="nv-x-label-clip-6678"] )
<div id="chart">
<svg>
<g class="nvd3 nv-wrap nv-discreteBarWithAxes">
<g transform="translate(60,15)">
<defs>
<clipPath id="nv-x-label-clip-6678">
<rect width="20.912863070539423" height="16" x="-10.456431535269711">
</rect>
</clipPath>
</defs>
<g class="nv-x nv-axis" transform="translate(0,235)">
<g class="nvd3 nv-wrap nv-axis">
<g>
<g transform="translate(6.390041493775935,0)" style="opacity: 1;">
<line class="tick" y2="-235" x2="0">
</line>
<text y="3" dy=".71em" transform="translate(0,5)" x="0" style="text-anchor: middle;">00</text>
</g>
<g transform="translate(18.008298755186722,0)" style="opacity: 1;">
<line class="tick" y2="-235" x2="0">
</line>
<text y="3" dy=".71em" transform="translate(0,17)" x="0" style="text-anchor: middle;">01</text>
</g>
<g transform="translate(29.62655601659751,0)" style="opacity: 1;">
<line class="tick" y2="-235" x2="0">
</line>
<text y="3" dy=".71em" transform="translate(0,5)" x="0" style="text-anchor: middle;">02</text>
</g>
<path class="domain">
</path>
<text class="nv-axislabel" text-anchor="middle" y="36" x="140.00000000000003" transform="translate(0,17)">
</text>
</g>
</g>
</g>
<g class="nv-y nv-axis">
<g class="nvd3 nv-wrap nv-axis">
<g>
<g transform="translate(0,235)" style="opacity: 1;">
<line class="tick zero" x2="280" y2="0">
</line>
<text x="-3" dy=".32em" opacity="0" y="0" style="text-anchor: end;">0.0</text>
</g>
<g transform="translate(0,192.54290876242095)" style="opacity: 1;">
<line class="tick" x2="280" y2="0">
</line>
<text x="-3" dy=".32em" opacity="1" y="0" style="text-anchor: end;">200.0</text>
</g>
<g transform="translate(0,150.0858175248419)" style="opacity: 1;">
<line class="tick" x2="280" y2="0">
</line>
<text x="-3" dy=".32em" opacity="1" y="0" style="text-anchor: end;">400.0</text>
</g>
</g>
</g>
</g>
<g class="nv-barsWrap">
<g class="nvd3 nv-wrap nv-discretebar" transform="translate(0,0)">
<g>
<g class="nv-groups">
<g class="nv-group nv-series-0" style="stroke-opacity: 1; fill-opacity: 0.75;">
<g transform="translate(1.6846473217010498,0)" class="nv-bar positive" style="fill: #0088cc; stroke: #0088cc;">
<rect height="235" width="9.41078838174274" class="discreteBar">
</rect>
</g>
<g transform="translate(13.30290412902832,166.00723266601562)" class="nv-bar positive" style="fill: #0088cc; stroke: #0088cc;">
<rect height="68.99277326106593" width="9.41078838174274" class="discreteBar">
</rect>
</g>
<g transform="translate(24.921161651611328,175.98464965820312)" class="nv-bar positive" style="fill: #0088cc; stroke: #0088cc;">
<rect height="59.01535682023487" width="9.41078838174274" class="discreteBar">
</rect>
</g>
</g>
</g>
</g>
</g>
</g>
</g>
</g>
</svg>
</div>

It is most likely because the container does not have enough room to contain the graph. Add height=100% and width=100% or some arbitrary large number of pixels to test it out (to the div containing the chart).