SVG text not horizontally center aligning - html

I generated a SVG using Adobe XD. They use transform for positioning things but the text in my mini computer screen is not always the same width (it is dynamically generated). I have tried anchored, anything I could find but it still didn't work. This is how it looks with the current code:
Here is the code:
<svg xmlns="http://www.w3.org/2000/svg" width="903.5" height="860.5" viewBox="0 0 1200 1041">
<g transform="translate(-397)">
<g
transform="translate(507 975)"
fill="#fff"
stroke="#707070"
strokeWidth="1"
>
<rect width="907" height="66" rx="33" stroke="none" />
<rect x="0.5" y="0.5" width="906" height="65" rx="32.5" fill="none" />
</g>
<rect width="119" height="395" transform="translate(901 613)" fill="#fff" />
<g
transform="translate(397)"
fill="#232323"
stroke="#fff"
stroke-width="30"
>
<rect width="1127" height="627" rx="103" stroke="none" />
<rect x="15" y="15" width="1097" height="597" rx="88" fill="none" />
</g>
<text
fill="white"
fontSize="96"
fontFamily="Fredoka"
>
{screenText}
</text>
</g>
</svg>


You can use transform/translate, text-anchor and dominant-baseline to place a text in the middle of something.
body {
background: gray;
}
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 1041">
<g
transform="translate(600 975)"
fill="#fff"
stroke="#707070"
stroke-width="1">
<rect x="-453.5" width="907" height="66" rx="33" stroke="none" />
<rect x="-454" y="0.5" width="906" height="65" rx="32.5" fill="none" />
</g>
<rect width="119" height="395" transform="translate(545.5 613)" fill="#fff" />
<g transform="translate(50)"
fill="#232323"
stroke="#fff"
stroke-width="30">
<rect width="1127" height="627" rx="103" stroke="none" />
<rect x="15" y="15" width="1097" height="597" rx="88" fill="none" />
</g>
<text
fill="#fff"
font-size="96"
font-family="Fredoka"
transform="translate(600 300)"
text-anchor="middle"
dominant-baseline="middle">
{screenText}
</text>
</svg>


Thanks to Buhan Yu's comment I learned that you need to specify x and y to center align it. I set x="50%" and it worked!

Related

Task Timeline with SVG - Cannot animate final transition

I'm trying to generate a task timeline coded as SVG in a generic way, and managed to do it until this point:
https://jsfiddle.net/dx7uryob/
What remains to do is the following animation (on any task point):
From:
:
To the "task" label rotating 90 deg until displayed perfectly horizontally and centered above the task point. I managed to do this by adding rotate(90, x+45, y) into the transform attribute of the according <text> tag, but this fails to rotate gradually when I use svg text { transition: transform 1s; }.
I would really like to know how to animate that (working also in IE, so I guess animateTransform is not an option..?).
Then, the final step would be to blend in a second label below the rotated "task" label, ideally by turning an opacity to 1 to gradually make it appear / disappear. For this, I could not even find out how to place a second text label below the first one in an SVG.
Concering solutions; I'd really prefer to stick to SVG, as my solution copied in the snippet can be generated in a generic way and then scaled as you please; it's just these last two pieces missing and I can't find them out.
.label-below-task-point {
text-anchor: end;
}
<svg version="1.1" baseProfile="full" viewBox="0 0 1000 200" xmlns="http://www.w3.org/2000/svg" id="timeline-container">
<line x1="11" x2="200" y1="11" y2="142.2" stroke="black" />
<line x1="200" x2="400" y1="142.2" y2="121" stroke="black" />
<line x1="400" x2="600" y1="121" y2="167.6" stroke="black" />
<line x1="600" x2="989" y1="167.6" y2="11" stroke="black" />
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="11" y="11" transform="translate(-10,-10)" />
<text x="11" y="11" transform="translate(6,20) rotate(-90,11,11)" class="label-below-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="200" y="142.2" transform="translate(-10,-10)" />
<text x="200" y="142.2" transform="translate(6,-20) rotate(-90,200,142.2)" class="label-above-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="400" y="121" transform="translate(-10,-10)" />
<text x="400" y="121" transform="translate(6,-20) rotate(-90,400,121)" class="label-above-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="600" y="167.6" transform="translate(-10,-10)" />
<text x="600" y="167.6" transform="translate(6,-20) rotate(-90,600,167.6)" class="label-above-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="989" y="11" transform="translate(-10,-10)" />
<text x="989" y="11" transform="translate(6,20) rotate(-90,989,11)" class="label-below-task-point">task</text>
</svg>
Am I maybe better off using a canvas here? I've no experience with it, but I wonder if it's the better choice for what I'm trying to do..

I have solved it for the second text, task2, using transform-origin :
.label-below-task-point {
transform: rotate(90deg);
transition: transform 1s;
}
.label-below-task-point:hover {
transform: rotate(0deg);
}
<svg version="1.1" baseProfile="full" viewBox="0 0 1000 200" xmlns="http://www.w3.org/2000/svg" id="timeline-container">
<line x1="11" x2="200" y1="11" y2="142.2" stroke="black" />
<line x1="200" x2="400" y1="142.2" y2="121" stroke="black" />
<line x1="400" x2="600" y1="121" y2="167.6" stroke="black" />
<line x1="600" x2="989" y1="167.6" y2="11" stroke="black" />
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="11" y="11" transform="translate(-10,-10)" />
<text x="11" y="11" class="label-below-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="200" y="142.2" transform="translate(-10,-10)" />
<text x="180" y="125" transform-origin="199px 120px" class="label-below-task-point">task2</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="400" y="121" transform="translate(-10,-10)" />
<text x="400" y="121" transform="translate(6,-20) rotate(-90,400,121)" class="label-above-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="600" y="167.6" transform="translate(-10,-10)" />
<text x="600" y="167.6" transform="translate(6,-20) rotate(-90,600,167.6)" class="label-above-task-point">task</text>
<rect stroke="black" stroke-width="2" fill="white" width="20" height="20" x="989" y="11" transform="translate(-10,-10)" />
<text x="989" y="11" transform="translate(6,20) rotate(-90,989,11)" class="label-below-task-point">task</text>
</svg>

Facing problem while trying trying to rotate SVG animation

I'm a beginner in animation. I am trying to learn svg animation from the following piece of code.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" viewbox="50 70 200 200">
<path stroke="black" fill="none" d="M70,85H125V140H70V85Z" ></path>
<path d="M0,0 L-2.69,-4.95L0,-2.2L2.69,-4.95L0,0z" transform="rotate(-90)" style="fill: #ff0000;">
<animateMotion path="M70,85H125V140H70V85Z" dur="10s" rotate="auto" repeatCount="indefinite"></animateMotion>
</path>
<g>
<desc>white mask</desc>
<rect x="90" y="80" width="15" height="65" fill="white" />
<rect x="65" y="105" width="65" height="15" fill="white" />
</g>
</svg>
I'm tring to move the arrow to rotate in opposite direction (i.e anticlockwise) but unable to achieve that. I have tried to change the path but I'm stuck at this point.
Any help will be appreciated.

We can use keyTimes and keyPoints to run the animation backwards and alter the transform to rotate the arrow. See how the keyPoints go from 1 to 0.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" viewbox="50 70 200 200">
<path stroke="black" fill="none" d="M70,85H125V140H70V85Z" ></path>
<path d="M0,0 L-2.69,-4.95L0,-2.2L2.69,-4.95L0,0z" transform="rotate(90)" style="fill: #ff0000;">
<animateMotion keyPoints="1;0" keyTimes="0;1" path="M70,85H125V140H70V85Z" dur="10s" rotate="auto" repeatCount="indefinite"></animateMotion>
</path>
<g>
<desc>white mask</desc>
<rect x="90" y="80" width="15" height="65" fill="white" />
<rect x="65" y="105" width="65" height="15" fill="white" />
</g>
</svg>

Dynamic Text in SVG def

I'm trying to use an svg def tag to show some dimensions in a creative manner.
For an example, I have below example svg def.
<svg>
<defs>
<g id="aaa" stroke-opacity="null" stroke-width="0" stroke-linecap="null" stroke-linejoin="null" fill="#6bfc46" >
<circle cx="300" cy="400" r="30" />
<rect x="300" y="400" width="30" height="30" />
<circle cx="300" cy="400" r="25" fill="#ffffff" />
<text x="300" y="400" text-anchor="middle" stroke="#6bfc46" stroke-width="2px" dy=".3em">5</text>
</g>
</defs>
<svg/>
What I need to achieve is I should be able to use this defined text in different locations as below.
<use xlink:href="#aaa" x="480" y="550" changing_text="3">
<use xlink:href="#aaa" x="580" y="650" changing_text="9">
My Question is
1) Is this possible with SVG ?
2) How can we achieve this ?

SVG rect as background to text [duplicate]

I want to color the background of svg text similar to background-color in css
I was only able to find documentation on fill, which colors the text itself
Is it even possible?

You could use a filter to generate the background.
<svg width="100%" height="100%">
<defs>
<filter x="0" y="0" width="1" height="1" id="solid">
<feFlood flood-color="yellow" result="bg" />
<feMerge>
<feMergeNode in="bg"/>
<feMergeNode in="SourceGraphic"/>
</feMerge>
</filter>
</defs>
<text filter="url(#solid)" x="20" y="50" font-size="50">solid background</text>
</svg>

No this is not possible, SVG elements do not have background-... presentation attributes.
To simulate this effect you could draw a rectangle behind the text attribute with fill="green" or something similar (filters). Using JavaScript you could do the following:
var ctx = document.getElementById("the-svg"),
textElm = ctx.getElementById("the-text"),
SVGRect = textElm.getBBox();
var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
rect.setAttribute("x", SVGRect.x);
rect.setAttribute("y", SVGRect.y);
rect.setAttribute("width", SVGRect.width);
rect.setAttribute("height", SVGRect.height);
rect.setAttribute("fill", "yellow");
ctx.insertBefore(rect, textElm);

The solution I have used is:
<svg>
<line x1="100" y1="100" x2="500" y2="100" style="stroke:black; stroke-width: 2"/>
<text x="150" y="105" style="stroke:white; stroke-width:0.6em">Hello World!</text>
<text x="150" y="105" style="fill:black">Hello World!</text>
</svg>
A duplicate text item is being placed, with stroke and stroke-width attributes. The stroke should match the background colour, and the stroke-width should be just big enough to create a "splodge" on which to write the actual text.
A bit of a hack and there are potential issues, but works for me!

Instead of using a <text> tag, the <foreignObject> tag can be used, which allows for XHTML content with CSS.

No, you can not add background color to SVG elements. You can do it programmatically with d3.
var text = d3.select("text");
var bbox = text.node().getBBox();
var padding = 2;
var rect = self.svg.insert("rect", "text")
.attr("x", bbox.x - padding)
.attr("y", bbox.y - padding)
.attr("width", bbox.width + (padding*2))
.attr("height", bbox.height + (padding*2))
.style("fill", "red");

Answer by Robert Longson (#RobertLongson) with modifications:
<svg width="100%" height="100%">
<defs>
<filter x="0" y="0" width="1" height="1" id="solid">
<feFlood flood-color="yellow"/>
<feComposite in="SourceGraphic" operator="xor"/>
</filter>
</defs>
<text filter="url(#solid)" x="20" y="50" font-size="50"> solid background </text>
<text x="20" y="50" font-size="50">solid background</text>
</svg>
and we have no bluring and no heavy "getBBox" :)
Padding is provided by white spaces in text-element with filter.
It's worked for me

Going further with #dbarton_uk answer, to avoid duplicating text you can use paint-order=stroke style:
<svg>
<line x1="100" y1="100" x2="350" y2="100" style="stroke:grey; stroke-width: 100"/>
<text x="150" y="105" style="stroke:white; stroke-width:0.5em; fill:black; paint-order:stroke; stroke-linejoin:round">Hello World!</text>
</svg>
Note the stroke-linejoin:round which is needed to avoid seeing spikes for the W sharp angle.

You can combine filter with the text.
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>SVG colored patterns via mask</title>
</head>
<body>
<svg viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter x="0" y="0" width="1" height="1" id="bg-text">
<feFlood flood-color="white"/>
<feComposite in="SourceGraphic" operator="xor" />
</filter>
</defs>
<!-- something has already existed -->
<rect fill="red" x="150" y="20" width="100" height="50" />
<circle cx="50" cy="50" r="50" fill="blue"/>
<!-- Text render here -->
<text filter="url(#bg-text)" fill="black" x="20" y="50" font-size="30">text with color</text>
<text fill="black" x="20" y="50" font-size="30">text with color</text>
</svg>
</body>
</html>

this is my favorite hack (not sure it should work). It refer an element that is not yet displayed, and it works pretty well
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 620 40" preserveAspectRatio="xMidYMid meet">
<defs>
<filter x="-0.02" y="0" width="1.04" height="1.1" id="removebackground">
<feFlood flood-color="#00ffff"/>
</filter>
</defs>
<!--Draw the text-->
<use xlink:href="#mygroup" filter="url(#removebackground)" />
<g id="mygroup">
<text id="text1" x="9" y="20" style="text-anchor:start;font-size:14px;">custom text with background</text>
<line x1="200" y1="18" x2="200" y2="36" stroke="#000" stroke-width="5"/>
<line x1="120" y1="27" x2="203" y2="27" stroke="#000" stroke-width="5"/>
</g>
</svg>

For those wondering how to apply padding to a text element when it has a background like in the Robert's answer, do the following:
<svg>
<defs>
<filter x="-0.1" y="-0.1" width="1.2" height="1.2" id="solid">
<feFlood flood-color="#171717"/>
<feComposite in="SourceGraphic" operator="xor" />
</filter>
</defs>
<text filter="url(#solid)" x="20" y="50" font-size="50">Hello</text>
</svg>
In the example above, filter's x and y positions can be used as transform: translate(-10%, -10%) would, and width and height values can be read as 120% and 120%. So we made background 20% bigger, and offsetted it -10%, so background is now 10% bigger on each side of the text.

The previous answers relied on doubling up text and lacked sufficient whitespace.
By using atop and I was able to get the results I wanted.
This example also includes arrows, a common use case for SVG text labels:
<svg viewBox="-105 -40 210 234">
<title>Size Guide</title>
<defs>
<filter x="0" y="0" width="1" height="1" id="solid">
<feFlood flood-color="white"></feFlood>
<feComposite in="SourceGraphic" operator="atop"></feComposite>
</filter>
<marker id="arrow" viewBox="0 0 10 10" refX="5" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
<path d="M 0 0 L 10 5 L 0 10 z"></path>
</marker>
</defs>
<g id="garment">
<path id="right-body" fill="none" stroke="black" stroke-width="1" stroke-linejoin="round" d="M0 0 l30 0 l0 154 l-30 0"></path>
<path id="right-sleeve" d="M30 0 l35 0 l0 120 l-35 0" fill="none" stroke-linejoin="round" stroke="black" stroke-width="1"></path>
<use id="left-body" href="#right-body" transform="scale(-1,1)"></use>
<use id="left-sleeve" href="#right-sleeve" transform="scale(-1,1)"></use>
<path id="collar-right-top" fill="none" stroke="black" stroke-width="1" stroke-linejoin="round" d="M0 -6.5 l11.75 0 l6.5 6.5"></path>
<use id="collar-left-top" href="#collar-right-top" transform="scale(-1,1)"></use>
<path id="collar-left" fill="white" stroke="black" stroke-width="1" stroke-linejoin="round" d="M-11.75 -6.5 l-6.5 6.5 l30 77 l6.5 -6.5 Z"></path>
<path id="front-right" fill="white" stroke="black" stroke-width="1" d="M18.25 0 L30 0 l0 154 l-41.75 0 l0 -77 Z"></path>
<line x1="0" y1="0" x2="0" y2="154" stroke="black" stroke-width="1" stroke-dasharray="1 3"></line>
<use id="collar-right" href="#collar-left" transform="scale(-1,1)"></use>
</g>
<g id="dimension-labels">
<g id="dimension-sleeve-length">
<line marker-start="url(#arrow)" marker-end="url(#arrow)" x1="85" y1="0" x2="85" y2="120" stroke="black" stroke-width="1"></line>
<text font-size="10" filter="url(#solid)" fill="black" x="85" y="60" class="dimension" text-anchor="middle" dominant-baseline="middle"> 120 cm</text>
</g>
<g id="dimension-length">
<line marker-start="url(#arrow)" marker-end="url(#arrow)" x1="-85" y1="0" x2="-85" y2="154" stroke="black" stroke-width="1"></line>
<text font-size="10" filter="url(#solid)" fill="black" x="-85" y="77" text-anchor="middle" dominant-baseline="middle" class="dimension"> 154 cm</text>
</g>
<g id="dimension-sleeve-to-sleeve">
<line marker-start="url(#arrow)" marker-end="url(#arrow)" x1="-65" y1="-20" x2="65" y2="-20" stroke="black" stroke-width="1"></line>
<text font-size="10" filter="url(#solid)" fill="black" x="0" y="-20" text-anchor="middle" dominant-baseline="middle" class="dimension"> 130 cm </text>
</g>
<g title="Back Width" id="dimension-back-width">
<line marker-start="url(#arrow)" marker-end="url(#arrow)" x1="-30" y1="174" x2="30" y2="174" stroke="black" stroke-width="1"></line>
<text font-size="10" filter="url(#solid)" fill="black" x="0" y="174" text-anchor="middle" dominant-baseline="middle" class="dimension"> 60 cm </text>
</g>
</g>
</svg>

An obvious workaround to the problem of the blur produced by the filter effect is to render the <text> two times: once for the background (with transparent characters) and once for the characters (without a background filter).
For me, this was the only way to make the text readable in Safari.
<svg width="100%" height="100%">
<filter x="0" y="0" width="1" height="1" id="solid">
<feFlood flood-color="yellow" />
</filter>
<g transform="translate(20, 50)" font-size="50">
<text aria-hidden="true" fill="none" filter="url(#solid)">solid background</text>
<text fill="blue">solid background</text>
</g>
</svg>
The aria-hidden="true" attribute is there to prevent screen readers from speaking the text twice, if the user uses a screen reader.

You can add style to your text:
style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
text-shadow: rgb(255, 255, 255) -2px -2px 0px, rgb(255, 255, 255) -2px 2px 0px,
rgb(255, 255, 255) 2px -2px 0px, rgb(255, 255, 255) 2px 2px 0px;"
White, in this example.
Does not work in IE :)

SVG Elements not in view on page load do not display

I have an SVG image (with code generated by Adobe Illustrator CS6) embedded in a web page. I've isolated the SVG code in this jsFiddle (it is also embedded below).
In Chrome (but not Firefox), when the bottom part of the SVG isn't in view, it doesn't render. Shrink the window and scroll to the top of the HTML section on the jsFiddle and then reload to see what I'm talking about. Once you click the section, it appears.
What can I do to fix this?
Edit: WebKit bug filed, as it appears to be a WebKit bug. View bug report
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/" x="0px" y="0px" width="690px" height="420px" viewBox="0 43 690 420" enable-background="new 0 43 690 420" xml:space="preserve">
<defs></defs>
<filter id="fullblur" x="0" y="0">
<feGaussianBlur in="SourceGraphic" stdDeviation="2" />
</filter>
<filter id="halfblur" x="0" y="0">
<feGaussianBlur in="SourceGraphic" stdDeviation="1" />
</filter>
<filter id="noblur" x="0" y="0">
<feGaussianBlur in="SourceGraphic" stdDeviation="0" />
</filter>
<!-- BACKGROUND (hidden) -->
<rect y="43" display="none" fill="#D1DBBB" width="690" height="420"/>
<!-- STAGE -->
<ellipse fill="#CC3333" stroke="#000000" cx="339.5" cy="43" rx="169.5" ry="42.5"/>
<!-- SEATS -->
<g>
<!-- STUDENT SECTIONS -->
<g id="studhover">
<g filter="url(#halfblur)" id="studchart" class="chartsection">
<g id="s1">
<path class="sFill" fill="#FECB2F" d="M90.75,136c0,2.761,2.239,5,5,5h150c2.761,0,5-2.239,5-5V90.5c0-2.761-2.239-5-5-5h-150
c-2.761,0-5,2.239-5,5V136z"/>
<path class="sStroke" fill="none" stroke="#000000" d="M90.75,136c0,2.761,2.239,5,5,5h150c2.761,0,5-2.239,5-5V90.5c0-2.761-2.239-5-5-5h-150
c-2.761,0-5,2.239-5,5V136z"/>
</g>
<g id="s2">
<path class="sFill" fill="#FECB2F" d="M265.75,150c0,2.761,2.239,5,5,5h150c2.762,0,5-2.239,5-5v-45.5c0-2.761-2.238-5-5-5h-150
c-2.761,0-5,2.239-5,5V150z"/>
<path class="sStroke" fill="none" stroke="#000000" d="M265.75,150c0,2.761,2.239,5,5,5h150c2.762,0,5-2.239,5-5v-45.5c0-2.761-2.238-5-5-5h-150
c-2.761,0-5,2.239-5,5V150z"/>
</g>
<g id="s3">
<path class="sFill" fill="#FECB2F" d="M439.25,136c0,2.761,2.238,5,5,5h150c2.762,0,5-2.239,5-5V90.5c0-2.761-2.238-5-5-5h-150c-2.762,0-5,2.239-5,5V136z"/>
<path class="sStroke" fill="none" stroke="#000000" d="M439.25,136c0,2.761,2.238,5,5,5h150c2.762,0,5-2.239,5-5V90.5c0-2.761-2.238-5-5-5h-150
c-2.762,0-5,2.239-5,5V136z"/>
</g>
<g id="s4">
<path class="sFill" fill="#FECB2F" d="M90.75,205.5c0,2.761,2.239,5,5,5h150c2.761,0,5-2.239,5-5V160c0-2.761-2.239-5-5-5h-150
c-2.761,0-5,2.239-5,5V205.5z"/>
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This is a Webkit bug caused by the use of filters. I removed the <filter> sections and the flter="url(...)" tags to stop the filters from running and it now works.