I have radios aligned on an arch.
I would like to add a transition that slides the selected inner blue dot along the arch to the newly selected radio.
I have a working demo setup.
WORKING DEMO
See a solution in the fiddle (click on the blue button):
Just put the button in a "g" and rotate it with transition:
const button = d3.select("#button");
let angle = 60;
button.on("click", () => {
angle = -angle;
button.transition().duration(1000).attr("transform", `translate(${cX}, ${cY}) rotate(${angle})`);
});
Another option is to use animateMotion along the path:
<svg width="300" height="200">
<path fill="none" stroke="blue" stroke-width="3"
d="M 20,20 A 100,100 0 0 0 220,20" />
<circle r="10" fill="white" stroke="blue" stroke-width="3">
<animateMotion dur="3s" repeatCount="indefinite"
path="M 20,20 A 100,100 0 0 0 220,20 A 100,100 1 1 1 20,20" />
</circle>
</svg>
Related
I'm building a Gauge chart in a presentational component in React.
I just need to pass it a percentage and let the component do the rest. I can't use any animations because I'm taking a screenshot of the component to place the image in a Powerpoint presentation.
Here's a screenshot of what I'm trying to do:
As you can see in my code snippet, the circle <marker> is being positioned at the end of the grey <path> instead of at the end of the green <path>. How could I position the circle so it sits at the stroke-linecap of the green <path> as in the image above?
Here's the HTML code I have so far:
<div style="width:400px">
<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
<defs>
<marker
id="dot"
viewBox="0 0 10 10"
refX="4"
refY="4"
markerWidth="4"
markerHeight="4"
>
<circle
cx="4"
cy="4"
r="2"
fill="#FFFFFF"
stroke="#008000"
stroke-width="2"
/>
</marker>
</defs>
<path d="M20,60a35,35 0 1,1 60,0" stroke="#D3D7DB" stroke-width="4" fill="none" stroke-linecap="round"></path>
<path d="M20,60a35,35 0 1,1 60,0" stroke="#008000" stroke-width="6" pathLength="100" fill="none" stroke-linecap="round" stroke-dasharray="75 35" marker-end="url(#dot)"></path>
</svg>
</div>
You can do it all in SVG by setting pathLength and using animationMotion to position the circle.
Some JavaScript and a W3C standard Web Component (supported in all modern Browsers) help in putting multiple gauges on screen and making them dynamic.
customElements.define("svg-gauge", class extends HTMLElement {
connectedCallback() {
let speed = 0.5; // set to 0.0001 for instant display!
let arc = "M20,60a35,35 0 1,1 60,0";
let col = this.getAttribute("color") || "green";
this.innerHTML =
`<input type="range" min="0" max="100" step="5" value="0"`+ // delete 2 lines
` oninput="this.parentNode.percent=this.value" /><br>`+ // just for demo
`<svg viewbox="0 0 100 100">
<path d="${arc}" stroke="grey" stroke-width="6" fill="none" stroke-linecap="round"></path>
<path id="P" d="${arc}" stroke="${col}" stroke-width="8" pathLength="100" fill="none" stroke-linecap="round" stroke-dasharray="75 35"/>
<circle stroke="${col}" cx="0" cy="0" fill="#fff" r="4" stroke-width="3">
<animateMotion dur="${speed}s" path="${arc}" keyPoints="0;0.75" fill="freeze" keyTimes="0;1" calcMode="linear"/>
</circle>
<text x="50%" y="40%" text-anchor="middle">XXX</text>
</svg>`;
this.style.display='inline-block';
this.percent = this.getAttribute("value") || "50";
}
set percent(val = 0) {
this.setAttribute("value", val);
let dash = val + " " + (105 - val);
this.querySelector("#P").setAttribute('stroke-dasharray', dash);
this.querySelector("animateMotion").setAttribute('keyPoints', '0;'+val/100);
this.querySelector("text").innerHTML =`${val} %`;
this.querySelector("animateMotion").beginElement();
this.querySelector("input").value = val;
}
})
<svg-gauge value="35" color="red" ></svg-gauge>
<svg-gauge value="50" color="orange"></svg-gauge>
<svg-gauge value="75" color="green" ></svg-gauge>
I went ahead and accepted Danny '365CSI' Engelman's answer above, but just in case anyone wants to do this without the animations here is how I ended up implementing it:
<div style="width:400px">
<svg viewBox="0 -10 100 100" xmlns="http://www.w3.org/2000/svg">
<path d="M20,60a35,35 0 1,1 60,0" stroke="#D3D7DB" stroke-width="4" fill="none" stroke-linecap="round"></path>
<path d="M20,60a35,35 0 1,1 60,0" stroke="#008000" stroke-width="6" pathLength="100" fill="none" stroke-linecap="round" stroke-dasharray="50 85"></path>
<circle
cx="0"
cy="0"
r="6"
stroke-width="6"
fill="#FFFFFF"
stroke="#008000"
>
<animateMotion
begin="0s"
dur="infinite"
repeatCount="infinite"
keyPoints="0.5;0.5"
fill="freeze"
keyTimes="0;1"
calcMode="linear"
path="M20,60a35,35 0 1,1 60,0"
></animateMotion>
</circle>
</svg>
</div>
I would like to animate an image on a path and show the route of the object (e.g a plane flying over a map). It should look like on this image:
But the dashes should apply after the object has reached the position, so the dashes were shown after the object.
I have tried multiple times, but I can do only once. Dash animation or plane on path . Does someone knows a solution.
animate a mask over the dashed path
move the plane along the same path
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1" height="200" width="400">
<defs>
<path id="basePath" d="M 50,150 A 280 500 0 0 1 350,150" />
<mask id="mask">
<use xlink:href="#basePath" stroke-width="3" stroke="white"
stroke-dasharray="1000,0" fill="none">
<animate attributeName="stroke-dasharray" from="0,348.5" to="348.5,0"
begin="0s" dur="5s" fill="freeze" />
</use>
</mask>
</defs>
<circle r="4" cx="50" cy="150" fill="grey" />
<circle r="4" cx="350" cy="150" fill="grey" />
<use xlink:href="#basePath" stroke-width="2" stroke-dasharray="10"
stroke="grey" fill="none" mask="url(#mask)"/>
<path d="M 27,3 H 21 L 13,15 H 9 L 12,3 H 5 L 3,7 H -1 L 1,0 -1,-7 H 3 L 5,-3 H 12 L 9,-15 H 13 L 21,-3 H 27 C 33,-3 33,3 27,3 Z"
fill="white" stroke="black" stroke-width="1.5">
<animateMotion rotate="auto" begin="0s" dur="5s" fill="freeze">
<mpath xlink:href="#basePath"/>
</animateMotion>
</path>
</svg>
The main thing to do is to calculate the length of the path, so you can set the stroke-dasharray values for the mask animation such that they keep pace with the animated plane. You can get that length in Javascript with
document.querySelector('#basePath').getTotalLength()
I want to move object through svg path on scroll=) I was trying to add parts of path on scroll into path, but it still doesn't work. Help!!!=)
https://jsfiddle.net/YuriiBielozertsev/Ltx9ed0L/
<?xml version="1.0"?>
<svg viewBox="0 0 120 120" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- Draw the outline of the motion path in grey, along with 2 small circles at key points -->
<path d="M10,110 A120,120 -45 0,1 110 10 A120,120 -45 0,1 10,110" stroke="green" stroke-width="2" fill="none" id="theMotionPath"/>
<circle cx="10" cy="110" r="3" fill="#000"/>
<circle cx="110" cy="10" r="3" fill="#000"/>
<!-- Red circle which will be moved along the motion path. -->
<circle cx="0" cy="" r="5" fill="red">
<!-- Define the motion path animation -->
<animateMotion dur="6s" repeatCount="indefinite">
<mpath xlink:href="#theMotionPath"/>
</animateMotion>
</circle>
</svg>
Something like this?
How this works:
When we get a scroll event we:
Calculate how far down the page we are
Convert this percentage to a position on the path using the <path> element functions getTotalLength() and getPointAtLength().
Reposition the dot so that it appears at this point.
function positionTheDot() {
// What percentage down the page are we?
var scrollPercentage = (document.documentElement.scrollTop + document.body.scrollTop) / (document.documentElement.scrollHeight - document.documentElement.clientHeight);
// Get path length
var path = document.getElementById("theMotionPath");
var pathLen = path.getTotalLength();
// Get the position of a point at <scrollPercentage> along the path.
var pt = path.getPointAtLength(scrollPercentage * pathLen);
// Position the red dot at this point
var dot = document.getElementById("dot");
dot.setAttribute("transform", "translate("+ pt.x + "," + pt.y + ")");
};
// Update dot position when we get a scroll event.
window.addEventListener("scroll", positionTheDot);
// Set the initial position of the dot.
positionTheDot();
.verylong {
height: 2000px;
}
svg {
position: fixed;
width: 200px;
height: 200px;
}
<svg viewBox="0 0 120 120" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- Draw the outline of the motion path in grey, along with 2 small circles at key points -->
<path d="M10,110 A120,120 -45 0,1 110 10 A120,120 -45 0,1 10,110" stroke="green" stroke-width="2" fill="none" id="theMotionPath"/>
<circle cx="10" cy="110" r="3" fill="#000"/>
<circle cx="110" cy="10" r="3" fill="#000"/>
<!-- Red circle which will be moved along the motion path. -->
<circle cx="0" cy="0" r="5" fill="red" id="dot"/>
</svg>
<div class="verylong">
</div>
There is an imaginary square which I want to draw as two halves, i.e. two triangles. Whilst they should perfectly fit together and make a square, a tiny line caused by anti-aliasing appears.
These triangles should be of different color, but I left both them black in the given example to make the line more visible.
<svg width="100" height="100"
viewPort="0 0 100 100" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<defs>
<clipPath id="first">
<path d="M 0 0 L 100 100 L 0 100 Z" fill="red"/>
</clipPath>
<clipPath id="second">
<path d="M 0 0 L 100 0 L 100 100 Z" fill="red"/>
</clipPath>
</defs>
<rect width="100" fill="black" height="100"
clip-path="url(#first)"/>
<rect width="100" fill="black" height="100"
clip-path="url(#second)"/>
</svg>
JSFiddle
I am open to solutions - canvas, WebGL etc. I just want to know possible solutions which would improve rendering.
I'm not sure why you are seeing the line using clip paths, but if I just change it around to using regular polygons and use shape-rendering: crispEdges the line doesn't appear:
<svg width="100" height="100" viewPort="0 0 100 100" version="1.1" xmlns="http://www.w3.org/2000/svg">
<polygon points="0,0 100,0 100,100" style="fill:black;shape-rendering:crispEdges;" />
<polygon points="0,0 100,100 0,100" style="fill:black;shape-rendering:crispEdges;" />
</svg>
I'm using clipPath to apply different "masking" effects to an image.
How can I fill the clipped image with a color on hover? I've tried using :hover in CSS, but that didn't seem to work, unless I was targeting the incorrect element.
I'm using jQuery in this project, so if a JS solution is needed, I can lean on jQuery.
Here's the HTML that I'm working with:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 100 100">
<defs>
<clipPath id="ellipse">
<ellipse cx="50" cy="35.5" rx="49.5" ry="35" />
</clipPath>
<clipPath id="hexagon">
<polygon points="25, 0 75, 0 100, 43.30127018922193 75, 86.60254037844386 25, 86.60254037844386 0, 43.30127018922193"/>
</clipPath>
<clipPath id="rectangle">
<rect x="0" y="0" width="100" height="70"></rect>
</clipPath>
</defs>
<g>
<image preserveAspectRatio="none" x="0" y="0" width="100%" height="100%" xlink:href="http://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Bucephala-albeola-010.jpg/800px-Bucephala-albeola-010.jpg" id="clippy" clip-path="url(#hexagon)">
</g>
</svg>
You might want to use a filter effect for giving the image some color on hover (see Tinkerbin):
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 100 100">
<style type="text/css">
image:hover {
filter:url(#Matrix);
}
</style>
<defs>
<clipPath id="ellipse">
<ellipse cx="50" cy="35.5" rx="49.5" ry="35" />
</clipPath>
<clipPath id="hexagon">
<polygon points="25, 0 75, 0 100, 43.30127018922193 75, 86.60254037844386 25, 86.60254037844386 0, 43.30127018922193"/>
</clipPath>
<clipPath id="rectangle">
<rect x="0" y="0" width="100" height="70"></rect>
</clipPath>
<filter id="Matrix" filterUnits="objectBoundingBox"
x="0%" y="0%" width="100%" height="100%">
<feColorMatrix type="matrix" in="SourceGraphic"
values="1 0 0 0 .5
.1 .9 0 0 0
.1 0 .9 0 0
0 0 0 1 0"/>
</filter>
</defs>
<g>
<image preserveAspectRatio="none" x="0" y="0" width="100%" height="100%" xlink:href="http://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Bucephala-albeola-010.jpg/800px-Bucephala-albeola-010.jpg" id="clippy" clip-path="url(#hexagon)">
</g>
</svg>
Edit: Some explanation about the filter:
The applied filter changes the color of every rastered pixel. It takes its original color value, applies the matrix specified by <feColorMatrix> to the color vector, and the resulting color vector becomes the displayed color.
How does the matrix work?
The matrix consists of four rows. The first row calculates the new red component, the second the green one, third blue, fourth alpha.
What's the meaning of the five numbers in each row? The first number is multiplied by the original color's red component, the second by the green one, third blue, fourth alpha. All four products are summed up, and the fifth value in the row is added as well (as a constant that does not depend on any of the original color components).
Let's have a look at the above example: Let's assume we have a grey pixel with color values like
rgba(25%,25%,25%,1)
What would be the resulting red value? The first row that calculates the red value is
1 0 0 0 .5
We calculate the following:
1*r + 0*g + 0*b + 0*a + .5
= 1*.25 + 0*.25 + 0*.25 + 0*1 + .5 = .75
This means, the resulting red component for the pixel is 75%. The other components are calculated analogously.
Not sure if this is exactly what you want. Mouse events aren't sent to areas outside a cliparea. Quick & dirty, works in IE9, haven't tested in FF for example.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 100 100">
<script type="application/ecmascript">
function fillit(evt) {
document.getElementById('fillarea').setAttribute('display', 'visible');
}
function emptyit(evt) {
document.getElementById('fillarea').setAttribute('display', 'none');
}
</script>
<defs>
<clipPath id="ellipse">
<ellipse cx="50" cy="35.5" rx="49.5" ry="35" />
</clipPath>
<clipPath id="hexagon">
<polygon points="25, 0 75, 0 100, 43.30127018922193 75, 86.60254037844386 25, 86.60254037844386 0, 43.30127018922193" />
</clipPath>
<clipPath id="rectangle">
<rect x="0" y="0" width="100" height="70"></rect>
</clipPath>
</defs>
<g>
<image preserveAspectRatio="none" x="0" y="0" width="100%" height="100%"
xlink:href="http://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Bucephala-albeola-010.jpg/800px-Bucephala-albeola-010.jpg"
id="clippy" clip-path="url(#hexagon)" onmouseover="fillit(evt)" />
<rect x="0" y="0" width="100%" height="100%" fill="red" display="none"
id="fillarea" clip-path="url(#hexagon)" onmouseout="emptyit(evt)" />
</g>
</svg>