Discover Top Posts Tagged with #svg animation

A neat way to do circular timer bars in SVG

OK so for a thing, I wanted to make a rotating timer/progress bar in SVG. Something like this:

...with the progress bar sweeping around the circle as time goes on.

Now, I made that in my SVG editor Inkscape, in which I have two handles which I can slide around the circle as I like. So I would just need to extract the relevant SVG from Inkscape and animate one of those handles around the circle, right?

Unfortunately, Inkscape's handles are just an intuitive wrapper over a basic SVG Path object. The arc is actually defined by its start point, end point and radius, with the centre and angle swept calculated automatically. So I can't simply animate the angle swept - I'd have to move the endpoint, which is much harder.

Based on this Stack Overflow post, standard ways to draw rotating progress bars in SVG all depend on setting up a function in JavaScript to calculate the endpoint position by converting from polar to Cartesian coordinates. It felt like there should be a way to do something like this in pure SVG, though.

I ended up with this:

This works using clipping paths. The circle is clipped by a rect, turning it into a semicircle:

The circle, with its clipping path, is placed in a group. The group has a second clipping mask, initially a rect in the opposite position.

Because the two clipping paths don't overlap at all, the circle isn't visible.

The left clipping rect, which applies to the group containing the circle, is animated to rotate around the centre of the circle. As it overlaps more of the other rectangle, more of the circle is revealed (everything in the pale green area is visible).

Eventually the rectangles completely overlap, and a semi-circle is revealed.

As soon as this first animation finishes, the corresponding animation for a mirrored semicircle begins. The transition should seem seamless.

This worked perfectly in Chrome, but in Firefox at time of writing there seems to be something funny going on with SVG animation which means the SVG doesn't update its appearance until clicked on.

Anyway, here's the above example. I'm going to work on putting the rate of rotation under external control.

#web design #animation #svg #svg animation

The Cursed Transform

Inline SVGs can be lean, mean, responsive machines or they can be covered in transforms which not all browsers like to cooperate with (looking at you, Safari). So what to do? Optimsers are generally the way to go. You want your SVG to be as small as possible anyway so why not optimise it as much as possible?

Plugins such as SVGO (or the handy online GUI version) are great for this, removing transforms while optimising the code, but problems can occur when you want to animate the SVG in question. Depending on the animation, you may parts of your SVG to remain distinct so you can target and manipulate them individually. Optimsers like to merge paths, which is where problems can occur.

Sub Optimal Solutions

Avoid transform as much as possible when creating the SVG by being careful with where transforms are applied (generally occur when manipulating groups).

Slap a group around it. Not great for lean code but if transforms are causing animations to act funny, sometimes the quickest fix is wrapping the troublesome spot in a group and targeting that instead.

What I’m Trying

Fiddle with the settings in SVGO to prevent merging paths so you can maintain individual paths while also stripping out transforms.

Optimise in chunks then recombine in the code. This is more time consuming but if you have a particularly bothersome SVG and need one portion to not merge with the others so it can be animated, then this can work.

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LOGO #03 - INTELIZA

.svg loading animation with css3

http://inteliza.com/

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Awake! Judgment Gun Morphing! - Space Patrol Luluco

See the SVG animation version on Codepen.

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Clicketyの作業タイマーに波を追加

サトーです。

svgをjsで(いい感じに)制御して波アニメーションを追加しました。

リリースを急ぐ中ではありますが、クオリティも捨てがたいですね。

#clickety #web service #web development #svg animation #svg #javascript

Interaction Design Principles

Interaction design is the process of creating attractive, user-friendly web interfaces. Attractive web interfaces contain a well-thought-out scheme of behavior and actions, as well as beautiful and non-intrusive animation. The more convenient the interface, the more satisfied the user. This is “usability” – convenience and ease of use. Also in the assessment of usability are taken: aesthetics, accessibility, security, studyability of the product.

Interaction design is based on 5 bases: words, visual effects (SVG animation), objects with space, time and behavior. From the first 3, the user's interaction with the interface is formed. Time and behavior determine the quality of interaction, they are important for understanding processes, errors.

The first user action causes many reactions in the interface, and these reactions cause a bunch of further user actions in a finite amount of time. For example, pressing the hamburger menu button opens the corresponding menu items in a fraction of a second. Further, there may be a lull in the user's behavior in anticipation of interface reactions or further iteration of actions in the hope of accelerating and quickly obtaining the desired interface response (for example, your server freezes, the user clicks on a menu item 20 times, thus even more loading the server with processing these clicks ). The interface should "talk" with the user, respond in the most logical, fast and optimal way for each case. To solve such problems, you need to use interactive elements that interact with the user on the client side. Such elements are often animations, the most popular way to create SVG animation online is on the service https://alterdraft.com/svg-animator which provides many opportunities to animate SVG vector graphics online, without installing third-party software. I note that this SVG animator online uses CSS animations that are loyal to the processor load.

#svg #svg animation #svg animator online

https://fvrr.co/2T1oUV2

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