I have some strange pieces of svg for animate them, the problem is, them no are a 'img-box-style' so, when I put one in another, rotate, translate to another place, etc. know the transform-origin is important. I do it by hand using porcents and try-catch after I get them. But... there aren't one or two. So...
I need to 'see' the transform-origin point of a svg, I trying by using ::after, adding anothers divs or spans, them inherit and works but not for svg. Finally i try using a <circle> but also, don't inherit, i don't know what to do.
Sometimes I need to put the circle in the middle of the two objects, in another time I need to put where the first fig start maybe x: 10% y: 60%.
Lets said I put put transform : 10% 60%; and see what I doing.
body{margin:3rem;}
#svg-id{height: 75vh; background: rgb(216 86 228 / 25%);}
#svg-id g{
/* transform-box: fill-box; */
transform-origin: center; /* how i can 'see' the transform origin??? */
/* animation: rotate 3s infinite linear; */
}
#svg-id g circle{
fill: red;
transform-origin: inherit; /* how inherit the transform origin??? */
}
#keyframes rotate{
from{transform: rotate(0turn);}
to {transform: rotate(1turn);}
}
<div>
<svg xmlns="http://www.w3.org/2000/svg" id="svg-id" viewBox="0 0 237.79 190.08">
<g>
<polygon points="12.21 129.77 40.5 150.42 136.21 115.91 44.66 90.08 12.21 129.77" />
<polygon points="143.89 114.5 152.67 76.72 216.41 26.34 188.17 112.21 143.89 114.5" />
<circle r=16 />
</g>
</svg>
</div>
Related
I am trying to animate some elements of an image in svg. To test the animation I first tried it on the whole image to check that it works well (it does). But when I change the class state-indicator-illustration by the id note-double-1 (id of the element to animate) the element note-double 1 disappears completely without me understanding why.I specify that to test I inserted the image "line by line" in the HTML code.
Here is the code (i put jsfiddle to avoid very long message) :
JsFiddle: https://jsfiddle.net/pju2ateL/2/
Thanks for your help,
elshiri.
As I've commented: you need to remove the transform attribute of the path.
In order to preserve your transformations I am wrapping the path in a group and transform the group instead of transforming the path. Also I had to change the viewBox since otherwise the path falls outside the svg canvas.
As you can see the css animation is working.
/* .state-indicator-illustration is working */
#note-double-1 {
/*overflow: hidden;*/
transform: translateY(0px);
animation: float 6s ease-in-out infinite;
}
#keyframes float {
0% {
transform: translateY(0px);
}
50% {
transform: translateY(-20px);
}
100% {
transform: translateY(0px);
}
}
<svg xmlns="http://www.w3.org/2000/svg" width="244" height="149.388" viewBox="-15 -320 244 149.388">
<g id="off" transform="translate(-1090, -390)">
<g transform="translate(-28.904 -320.214)" >
<path id="note-double-1" d="M1114.926,434.328l5.138-22.688,22.647,1.41c-.05.226-.093.412-.133.6q-2.918,12.882-5.824,25.761a5.089,5.089,0,0,1-3.018,3.727,7.907,7.907,0,0,1-9.016-2.153c-2.277-2.776-1.476-6.41,1.8-7.774a7.7,7.7,0,0,1,8.184,1.341c.1.083.205.172.31.245h.067l3.237-14.3c-1.28-.081-2.527-.164-3.772-.245-4.355-.272-8.713-.535-13.066-.821-.412-.029-.524.113-.61.49-1.4,6.229-2.861,12.445-4.2,18.686a5.393,5.393,0,0,1-4.558,4.48,7.783,7.783,0,0,1-8.129-3.455,4.664,4.664,0,0,1,1.414-6.408,7.077,7.077,0,0,1,6.186-.777,8.54,8.54,0,0,1,1.767.758A17.8,17.8,0,0,1,1114.926,434.328Z"/>
</g>
</g>
</svg>
This question already has answers here:
Maintaining the final state at end of a CSS animation
(5 answers)
Closed 2 years ago.
I am new to CSS animations and not quite understanding what's going on.
Here is my snippet:
.test-container {
position: relative;
height: 200px;
background-color: pink;
}
.test {
fill: black;
position: absolute;
top: 0;
transform: scale(0.0075);
animation: scale 2s ease-out;
animation-iteration-count: 1;
}
#keyframes scale {
0% {
transform: scale(0.0075);
opacity: 0;
}
100% {
transform: scale(1);
opacity: 1;
}
}
<div class="test-container">
<svg class="test" height="2000" width="2000">
<circle cx="1000" cy="1000" r="1000" />
Sorry, your browser does not support inline SVG.
</svg>
</div>
For some reason the snippet doesn't position the circle properly, but that isn't my issue.
What I would like for the animation to do is to start after 4 seconds and increase to the max size and then stay at that size (instead of going back to the small size).
Also, I would like it if the circle would bound the the container so that it doesn't expand over it like this:
Does anyone know how to achieve this?
I should also point out, that i am using an SVG because when I tried animating with a html circle, it lost it's quality, although that was because I was scaling up rather than down.
The snippet doesn't work as it does on my tests. It's supposed to start like this:
Then after 4 seconds I want it to start getting bigger:
Until it gets to it's maximum size:
The red border is to denote its "container". Imagine there is content above and below; I don't want the circle to ever overlap other content items.
I hope that makes more sense.
Update
Someone said this was answered, but it wasn't. It's not just the forwards state I need.....
I solved this issue myself anyway:
https://codepen.io/r3plica/pen/JjKxjPy
To get the animation to stay where it is at the end you use animation-fill-mode: forwards
To get it to start after 4 seconds use animation-delay: 4s
To stop the enlarged circle spilling out of the container set `overflow: hidden;
The code in the question has very large starting circle with a big reduction done through scaling. I have changed this the other way round so you start with a small circle drawn in the svg element and then expand it as that seemed easier than having to calculate reduction ratios.
How much you want the circle to expand and what you want to do about different aspect ratios of your viewport will be up to you, but here's the snippet that shows the basis of what you are looking for. Just play with the parameters to get the exact look you want (e.g. how big the enlarged circle is to be in relation to the height and/or width of the pink container).
.test-container {
position: relative;
height: 200px;
background-color: pink;
overflow-y:hidden;
}
.test {
fill: black;
position: absolute;
top: 90px;
left:0;
animation: scale 2s ease-out;
animation-iteration-count: 1;
animation-fill-mode: forwards;
animation-delay: 4s;
}
#keyframes scale {
0% {
transform: scale(1);
opacity: 0;
}
100% {
transform: scale(15);
opacity: 1;
}
}
<div class="test-container">
<svg class="test" height="20" width="20">
<circle cx="10" cy="10" r="10" />
Sorry, your browser does not support inline SVG.
</svg>
</div>
I thought I had pretty decent understanding of SVG, including the viewport, viewBox and the user coordinate system.
In the first example below, we use a viewBox with the same aspect ratio as the viewport. As expected, the user coordinate system rotation does not distort any angles.
In example two, we set the viewbox to a different aspect ratio, compared to the viewport. In other words, when mapping the viewBox to the viewport, the shapes' aspect ratios are not maintained. The bottom-right angle is not distorted from this scaling, which makes sense since the coordinate system origin is at (0,0).
When we rotate the user coordinate system in example two, however, the bottom right angle is distorted. This does not happen in example one.
Edit 1: Just to be clear, the issue is with regards to the bottom right angle in the last example. Before rotating, but after stretching with viewBox, the angle is 90%. After rotating however, it is no longer 90%.
Why does a non-uniformly scaled triangle loose its angles when rotating?
Example One (uniform scale)
body {
height: 500px;
}
svg {
width: 400px;
height: 400px;
border: 1px solid red;
}
<svg id="s1" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 200 200" preserveAspectRatio="none">
<style>
polygon {
transform: translate(100px, 0px);
animation: 2s ease-in 1s 1 normal forwards rotate-down;
fill: green;
}
#keyframes rotate-down {
0% {
transform: translate(100px, 0px) rotate(0deg);
}
100% {
transform: translate(100px, 0px) rotate(45deg);
}
}
</style>
<polygon points="100,100 100,0 0,100" />
</svg>
Example Two (non-uniform scale)
body {
height: 500px;
}
svg {
width: 600px;
height: 400px;
border: 1px solid red;
}
<svg id="s1" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 200 400" preserveAspectRatio="none">
<style>
polygon {
transform: translate(100px, 0px);
animation: 2s ease-in 1s 1 normal forwards rotate-down;
fill: green;
}
#keyframes rotate-down {
0% {
transform: translate(100px, 0px) rotate(0deg);
}
100% {
transform: translate(100px, 0px) rotate(45deg);
}
}
</style>
<polygon points="100,100 100,0 0,100" />
</svg>
EDIT 2 (images to clarify):
Below we see the triangle after viewBox has been added (thus scaled and translated), but before rotating. The bottom right angle is 90 degrees.
Below we see the triangle after viewBox has been added (thus scaled and translated), and after rotating. The bottom right angle is no longer 90 degrees.
EDIT 3:
I eventually got to the bottom of this.
Below is an answer explaining the details and linking to relevant resources.
Hopefully this example will show you what's going on.
Hover over the SVG to see why it is the stretching that is changing the angle.
body {
height: 500px;
}
svg {
width: 200px;
height: 400px;
border: 1px solid red;
transition: 1s width;
}
svg:hover {
width: 600px;
}
<svg id="s1" xmlns="http://www.w3.org/2000/svg" viewbox="0 0 200 400" preserveAspectRatio="none">
<style>
polygon {
transform: translate(100px, 0px) rotate(45deg);
fill: green;
}
</style>
<polygon points="100,100 100,0 0,100" />
</svg>
I finally got to the bottom of this.
The following question, which I posted after concluding what the actual problem was, explains why coordinate transformations behave as they do:
SVG rotate after scale: Order of transforms
In an answer to that question, #TemaniAfif shows how the final transformation matrix is calculated and applied to the graphic element's coordinates, in order to map it from the viewport coordinate system to the final user coordinate system.
Long story short, when applying transformations, what we actually do is copying the current user coordinate system, then translating it in relation to the current user coordinate system we copied from. In SVG, the initial user coordinate system (before viewBox or any transforms) is identical to the initial viewport coordinate system.
The chained / nested transforms are applied to the coordinate system left-to-right / outside-in, to reach a final coordinate system within which the graphical elements can be mapped. Note that nesting transforms have the same effect as chaining transforms on one element.
How does this actually work? Well, every transformation has an pre-defined affine transformation matrix, not related to CSS/SVG. There are several Wikipedia articles showing the matrices, like:
https://en.wikipedia.org/wiki/Transformation_matrix#Affine_transformations
https://en.wikipedia.org/wiki/Affine_transformation
To map the coordinates of an element to a final user coordinate system, we multiple the matrices with each other, left-to-right (the order it was written in the source code), to reach the final transformation matrix.
Note that, since we multiply the transform matrices in the order they are written in our source code, and since AxB is different from BxA when multiplying matrices, the order in which the transformations are written in our source code matters.
Finally, we then multiply the x and y coordinates for our element with this final transformation matrix, to see how each coordinate is mapped from the viewport coordinate system to the final user coordinate system.
For those so inclined, it might be easier to not think about the above and instead just mentally imagine that the chained / nested transforms are applied to the element itself (not to user coordinate systems) right-to-left / inside-out (i.e. opposite order of how it was applied to the coordinate systems).
Whether you imagine mentally that you transform the coordinate systems left-to-right and then map in the graphic element, or you transform the element itself by applying the transforms right-to-left, the end result will be the same.
Relevant Specifications
https://www.w3.org/TR/css-transforms-1/#transform-property
https://www.w3.org/TR/css-transforms-1/#transform-rendering
https://www.w3.org/TR/SVG/coords.html
Note
For this question it does not really matter whether the transforms are applied to SVG elements or to HTML elements. The same transformation mechanics apply.
It seems you think that viewBox is some kind of transform method applied, like others, when computing SVG image, which is not true. What you experience here is transformation applied on the whole SVG element. To apply this transformation a browser needs to have SVG object computed, so all in-SVG transformations are already applied.
This works exactly as scaling raster images:
polygon {
fill: transparent;
stroke-width: 4px;
stroke: black;
}
Base raster image:<br>
<img src="https://i.stack.imgur.com/ZA16O.png">
<br>Stretched raster image:<br>
<img style="height: 150px; width: 300px" src="https://i.stack.imgur.com/ZA16O.png">
<br>Base SVG:<br>
<svg viewBox="0,0,160,160" style="height: 120px" preserveAspectRatio="none">
<polygon points="10,10 150,10 80,150"/>
</svg>
<br>Stretched SVG:<br>
<svg viewBox="0,0,160,160" preserveAspectRatio="none" style="height: 120px; width: 300px;">
<polygon points="10,10 150,10 80,150"/>
</svg>
Only SVG's are drawed after they have been transformed, hence they do not lose quality.
SVG spec actually says (here) that all the transforms applied to SVG element work that way.
CSS allows to change the color of SVG like this
.clr {fill: green;}
But when I apply animation with the same fill attributes nothing seems to work. What should I do?
<svg width="800" height="600" style="background-color:lightblue">
<circle class="clr" cx="610" cy="240" r="4" fill="gold" />
<style>
.clr {animation: col 3s linear infinite;}
#keyframes col {
0%,71% {fill:none}
72% {fill:black}
75%,100% {fill:none}
}
</style>
</svg>
Its working as expected, I just increased the circle radius and changed its position to show it on 50x and 50y,
.color {animation: col 3s linear infinite;}
#keyframes col {
0%,71% {fill:none}
72% {fill:black}
75%,100% {fill:none}
}
<svg width="800" height="600" style="background-color:lightblue">
<circle class="color" cx="50" cy="50" r="30" fill="gold" />
</svg>
You Just add fill:black in #keyframes section. change it to green like this:
.color {animation: col 3s linear infinite;}
#keyframes col {
0%,71% {fill:none}
72% {fill:green}
75%,100% {fill:none}
}
<svg width="800" height="600" style="background-color:lightblue">
<circle class="color" cx="610" cy="240" r="4" fill="gold" />
</svg>
and don't want to use .color {fill: green;}.
You cannot animate from none (nothing) to green (something) for a smooth transition. Instead do:
#keyframes col {
0%, 71% { fill: none; } /* change attribute value to `inherit` */
72% { fill: black; }
75%, 100% { fill: none; } /* or change value to `currentcolor` */
}
Resulting in the following:
#keyframes col {
0%, 71% { fill: inherit; }
72% { fill: black; }
75%, 100% { fill: currentcolor; }
}
Then play around with the animation attribute or element.animate to achieve desired effect.
Following is the example from #Muhammad (because it is easier to see than the OP's example of a small dot in the lower right) of an svg with an inline style section. As I read the specification, it should work as is. However, browser support still seems to be lacking 3 years later, now in 2020.
SVG 2 Requirement: Add HTML5 ‘style’ element attributes to SVG's ‘style’ element.
Resolution: SVG 2 ‘style’ element shall be aligned with the HTML5 ‘style’ element.
Purpose: To not surprise authors with different behavior for the ‘style’ element in HTML and SVG content.
I have used VS Code with a plugin called jock.svg and the animation works as expected in the live preview pane. Just copy and save the svg code "as is" with a file extension of "svg".
It is hard to know what animation the OP was going for without a description because the code snippet is said to be not working.
For clarity I will describe what this example does: It displays a briefly (3% of the time) flashing black circle on a light blue background in the top left corner. Note that the original "gold" fill is ignored when the animation is working. Today in Safari (Mac, iPad), Chrome (iPad) and Edge (iPad), all I see is the "gold" circle. No animation is applied. Please comment if (when) your browser works. I suspect this hole in browser support will be filled in the future.
[Edit]
It works in Chrome 81.0.4044.92 (Mac)
<svg width="800" height="600" style="background-color:lightblue">
<circle class="color" cx="50" cy="50" r="30" fill="gold" />
<style>
.color {animation: col 3s linear infinite;}
#keyframes col {
0%,71% {fill:none}
72% {fill:black}
75%,100% {fill:none}
}
</style>
</svg>
I have found this question that's been answered and seems to achieve a radial wipe animation with an SVG.
I am looking to achieve a border: 1px solid green; effect like the following example:
What I would like to know though is if this is possible with pure CSS —that would be ideal.
If it's not achievable with CSS, how would I tackle this type of thing with SVG?
CSS is not the right tool for animations like these. While you can do it with CSS, best is to make use of SVG. For a pure CSS version you could try adapting the snippet provided in my answer here but I wouldn't really be recommending it because as you can see it is very complex.
All you have to do is use a circle element, set its stroke-dasharray equal to the circumference of the circle and then animate the stroke-dashoffset like in the below snippet.
The stroke-dasharray property creates a dotted line stroke for the cirlce (the border) where each of the stroke and the dash between them will have the length as specified for the property.
The stroke-dashoffset property specifies the offset at which the circle's stroke should start. When the offset is at 0, the green colored stroke is visible whereas when the offset is at 314 (equal to the circumference), the dash in between strokes become visible. Thus it ends up producing a wipe effect.
svg {
height: 100px;
width: 100px;
transform: rotate(-90deg);
}
circle {
stroke: green;
fill: none;
stroke-dasharray: 314; /* equal to circumference of circle 2 * 3.14 * 50 */
animation: wipe 2s linear infinite;
}
#keyframes wipe {
0% {
stroke-dashoffset: 0;
}
30%, 50% {
stroke-dashoffset: 314;
}
80%, 100% {
stroke-dashoffset: 0;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<svg viewBox='0 0 100 100'>
<circle cx='50' cy='50' r='40' />
</svg>
The above sample uses an infinite animation and so the wipe and repaint would run continuously. If it has to be toggled on/off then it would be better to use transition like in the below snippet. I have done this on :hover but you can easily adapt it to click or other events.
svg {
height: 100px;
width: 100px;
transform: rotate(-90deg);
}
circle {
stroke: green;
fill: none;
stroke-dasharray: 314; /* equal to circumference of circle 2 * 3.14 * 50 */
stroke-dashoffset: 0; /* initial setting */
transition: all 2s;
}
svg:hover circle{
stroke-dashoffset: 314;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<svg viewBox='0 0 100 100'>
<circle cx='50' cy='50' r='40' />
</svg>