im using svgPicture to show the image and every time at first it showing error and then it showing image.
SvgPicture.asset(
'assets/Images/otpLogo.svg',
height: SizeConfig.blockSizeVertical * 26,
),
and the error is
══╡ EXCEPTION CAUGHT BY SVG ╞═══════════════════════════════════════════════════════════════════════
I/flutter (18256): The following assertion was thrown in _getDefinitionPaint:
I/flutter (18256): Failed to find definition for url(#paint0_linear)
I/flutter (18256): This library only supports and xlink:href references that are defined ahead of their
I/flutter (18256): references.
I/flutter (18256): This error can be caused when the desired definition is defined after the element referring to it
I/flutter (18256): (e.g. at the end of the file), or defined in another file.
I/flutter (18256): This error is treated as non-fatal, but your SVG file will likely not render as intended
I'm not sure if this is the exact problem since you did not provide the code to the SVG file but according to the error message, it says:
This error can be caused when the desired definition is defined after the element referring to it...
For me, anyway, the solution was to edit the SVG file and move the <defs> tag and all its contents up to just below the opening of the <svg> tag.
You can improve and optimize your SVG code structure by using this online tool. Then simply cut and paste the defs as explained above.
Nonetheless, there is still an open issue in the repo about this particular problem.
Sample Case:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24">
<g fill="none" fill-rule="evenodd" transform="translate(8 6)">
<mask id="prefix__b" fill="#fff">
<use xlink:href="#prefix__a"/>
</mask>
<g fill="#FFF" mask="url(#prefix__b)">
<path d="M0 0H24V24H0z" transform="translate(-8 -6)"/>
</g>
</g>
<defs>
<path id="prefix__a" d="M7.705 1.41L6.295 0 0.295 6 6.295 12 7.705 10.59 3.125 6z"/>
</defs>
</svg>
Fixed version:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24">
<defs>
<path id="prefix__a" d="M7.705 1.41L6.295 0 0.295 6 6.295 12 7.705 10.59 3.125 6z"/>
</defs>
<g fill="none" fill-rule="evenodd" transform="translate(8 6)">
<mask id="prefix__b" fill="#fff">
<use xlink:href="#prefix__a"/>
</mask>
<g fill="#FFF" mask="url(#prefix__b)">
<path d="M0 0H24V24H0z" transform="translate(-8 -6)"/>
</g>
</g>
</svg>
Note: Notice the changing position of the defs tag.
Before in my svg file:
<svg>
<g>
...
</g>
<defs>
...
</defs>
</svg>
After in my svg file:
<svg>
<defs>
...
</defs>
<g>
...
</g>
</svg>
Move <defs></defs> to up!
Some informations about this behaviour.
This can occur if you export from Figma for exemple.
And be sure to put <defs></defs> just after the <svg opening tag. Even if you have something like <path at the top
I ran into the same thing after downloading SVG from Figma.
Then I tried to
Download a PNG file from Figma
Import it into Adobe XD
Then Export it to SVG from Adobe XD.
And this worked for me.
The error means that the SVG was not exported correctly. The layer in question connected to the user might not render as intended.
The successful rendering really depends on each individual device so if it shows correctly for e.g. iOS Simulator does not necessarily mean it will render correctly on every device (and in my experience, it doesn't).
The solution might be to try to export it differently, or if possible to switch it for example to PNG.
The error message actually tells us how to fix it:
Failed to find definition for url(#g1)
This library only supports <defs> and xlink:href references that are defined ahead of their references.
That means if your svg is :
<svg>
<rect fill="url(#g1)"/>
<defs>
<radiusGraident id="g1"> ... </radiusGradient>
</defs>
</svgs>
Please make the <defs> ahead of its usage. So the below svg would work :
<svg>
<defs>
<radiusGraident id="g1"> ... </radiusGradient>
</defs>
<rect fill="url(#g1)"/>
</svgs>
If the rearranging defs to the top solution doesn't work, just remove the pattern, rect and defs tag and only leave the image tag
if you have png from svg image then follow these steps:
1- Convert png to svg through this link: https://express.adobe.com/pt-BR/tools/convert-to-svg
2-After converting png to svg, insert it into your project.
3- If the background of the image does not have transparency, open the image file in the IDE (Android Studio or Visual Studio), showing the image code, go to the third line or close to it, change the option "opacity" to opacity=" 0"
When using the Flutter SvgPicture package, I fall into the same problem.
I solve this issue by exporting the file from Figam as PDF and then converting the pdf file to SVG.
Here are the steps I follow:
Save as (.pdf) from Figma/Adobe XD.
Go to Zamzar and convert the PDF file into SVG Image.
Use this image & Boom !!!
The problem is solved !!!
I've run into an issue on older versions of firefox, (in particular 38.2.1)
where a D3 animation of and SVG component results in rendering issues ( looks like its just not repainting the background).
a Minimal example below
https://jsfiddle.net/4n2f9g81/2/
<svg width="600" height="600">
<g transform="translate(36, 24)">
<g class="group" transform="translate(200)" >
<circle class="circle" fill="white" r="20" stroke-width="2" stroke="#7ab800"></circle>
<g class="label" >
<line y1="-25" y2="-40" stroke="#7ab800" stroke-width="1" shape-rendering="crispEdges"></line>
<text text-anchor="middle" class="peer-label position" y="-45" style="-moz-opacity:0">label text</text>
</g>
</g>
</g>
</svg>
d3.select('.group').transition().duration(5000).attr("transform", "translate(0,100)");
It only occurs when the g element with the class label has some content.. if it's empty or hidden there's no corruption and the animation works fine. since it works in more recent version (and in other browsers) I assume I've hit a firefox bug which has since been resolved.
I'd like to know if there's a workaround for this on these older versions. I've tried a couple of things like forcing a background fill or forcing opacity, but not had any success as yet.
Example here
<svg width="978px" height="668px" viewBox="0 0 978 668" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<pattern id="top" width="1" height="1" viewBox="0 0 717 478" preserveAspectRatio="xMidYMid slice">
<image xlink:href="http://imgsv.imaging.nikon.com/lineup/lens/zoom/normalzoom/af-s_dx_18-140mmf_35-56g_ed_vr/img/sample/sample1_l.jpg" width="717px" height="478px"></image>
</pattern>
</defs>
<g>
<path d="M1,95.0771484 L1,0 L979,0 L424.030762,379.068604 L1,95.0771484 Z" fill="url(#top)"></path>
</g>
</svg>
Open in Firefox to see image stretched (undesired effect)
Open in Chrome to see image sliced (desired effect)
I read Crop to fit an svg pattern, which was close to solving the problem.
It appeared to work only on 'circle's #2 and #3.
When I applied my 'path', image got stretched again.
They mention a Firefox bug, but it is marked as 'fixed'.
How can I get my image sliced across browsers?
This is fixed from Firefox 40 onwards by bug 1047973. I think that's currently available as Firefox developer edition but will be out in the production version on 11th August 2015
I have a PNG file with lots of icons on it. I want to use it in my SVG. I use the svg:image tag:
<image xlink:href="icons.png" height="50px" width="50px"></image>
This renders the whole image. How can I specify the portion of the file to be rendered? (I need an SVG-equivalent of CSS's background-position attribute)
Update
I suspect preserveAspectRatio attribute to be what I need, but can not figure out how to use it with <image>. See this example.
You can use preserveAspectRatio to achieve this affect in a limited way. But you are limited by the positioning options that preserveAspectRatio provides. So as long as your sprite has a maximum of 3x3 images or are positioned at the corners or sides, it would work.
The are a couple of other ways I can think of to achieve the same effect in a more flexible way.
Use the clip or clip-path style properties along with careful positioning of the image on the page
Embed the image inside another <svg> element and use viewBox to select the part of the sprite you want.
The following example demonstrates the three main techniques above.
<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="8cm" height="8cm" viewBox="0 0 400 400" version="1.1"
xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<desc>Testing image elements</desc>
<!-- Outline the drawing area in blue -->
<rect fill="none" stroke="blue"
x="1" y="1" width="398" height="398"/>
<!-- Use preserveAspectRatio to show the top 64 pixels of the image (Stack Overflow logo) -->
<image x="100px" y="100px" width="238px" height="64px" xlink:href="http://cdn.sstatic.net/stackoverflow/img/sprites.png"
preserveAspectRatio="xMinYMin slice"/>
<!-- Use a CSS clip rectangle to show a small facebook logo from the sprite. Logo is at 150,1000 with dimensions 19x19.
Positioned at 100,200 in the SVG (-50+150, -800+1000). Could also use a clip-path for this. -->
<image x="-50px" y="-800px" width="238px" height="1073px" xlink:href="http://cdn.sstatic.net/stackoverflow/img/sprites.png"
clip="rect(200 100 219 119)" />
<!-- Use a svg viewBox to show the facebook logo from the sprite.
By setting our viewBox to the bounds of the logo, the renderer will scale it to fit the specified width and height.
Which in this case is 19x19 - the same size as the sprite. -->
<svg x="100px" y="300px" width="19px" height="19px" viewBox="150 1000 19 19" version="1.1">
<image x="0px" y="0px" width="238px" height="1073px" xlink:href="http://cdn.sstatic.net/stackoverflow/img/sprites.png" />
</svg>
</svg>
I'm using svg-edit.googlecode.com. Is it possible to make animation in SVG? i need to animate an Image in a game which will be rotating its head. I have 10 frames of images for animation, but I dont know how to bring it into svg for Animation.
Need Help to make my Game Character to Animate by SVG.
<svg width="512" height="320" xmlns="http://www.w3.org/2000/svg">
<!-- Created with SVG-edit - http://svg-edit.googlecode.com/ -->
<g>
<title>Layer 1</title>
</g>
</svg>