One thing to consider when animating CSS shapes in general is the fact that the content that fits into one shape may not perfectly fit into another. Things To Consider Before Animating Your Shaped Layouts Content Fitting Inside Different Shapes You can easily animate a simple shape into a more complex one if you have all the necessary points defined. Now, thinking about the complex shape first does not at all mean that the initial shape must be more complex than the final shape, it just means that you will think ahead and prepare all the requirements before you start coding. When I first learned about this condition, I thought it would not be possible to change a simple shape into a more complex one that has more points defining it, but that’s actually not true, it is very doable: start by definining the points needed for the more complex shape, and then rearrangeįor example, even if you have 20 points making up the final shape, and you want to start with a simple rectangle defined by 4 points, you can still place those 16 extra points on the rectangular shape by simply placing them on one of the rectangle’s sides, without them affecting the shape of the rectangle. More specifically, transitions on the coordinates of each point, where the coordinates are interpolated as real numbers to allow animations and transitions, just like any other animatable CSS values. So the transitions on CSS shapes are really transitions on the individual points making up a shape. When you think about it, makes perfect sense: you have a set of points that make up a shape, and then you move those points around and have them form another shape. Must be the same as the number of points defining the initial shape. Even so, there is one condition: the number of points defining the final shape The only way a shape can be animated is when it is defined using a shape function. So, if you define a shape using an image, specify a transition, and then define another shape using another image when the element is hovered, for example, the shape applied to the shape will change but it will not animate or transition into the new shape it will just “jump” from one shape into another in an abrupt manner. Shapes defined using an image are not animatable. There are two ways we can create a shape with CSS shapes: using an image URI which the browser uses to extract the shape from, and using one of the available CSS shapes functions, such as polygon() and circle(), among others. For a detailed suppprt table for CSS Clipping and Masking, see the Support table.Īlso, check the current state of browser support for CSS Shapes out. So, you will be able to see the shapes animate in webkit-based browsers at this time, but the content inside the shapes won't be affected by the shapes because of the current state of support for CSS Shapes. Hence, the shapes are animated as clipping paths as well. All theĭemos in this article use clipping masks to visualize CSS Shapes. The principles of animating shapes is applicable to both CSS Shapes *and* CSS Clipping masks.Most of this article's demos use the `shape-inside` property, which has been temporarily removed from Webkit and Blink.The second article was about combining CSS shapes with CSS regions to create more readable layouts, tackling one face of the accessibility of non-rectangular shaped layouts. You may want to check the first article: Creating Non-Rectangular Layouts with CSS Shapes, which covers all the basics to get you started creating CSS shapes in no time. So in this article I’m assuming you have a basic understanding of how CSS shapes are created. This is the third article in a series of articles I’m writing about CSS shapes, There are also many considerations to take when animating CSS shapes, so we'll go over all points We'll be creating very basic "shape-shifting" layouts of sort. Today we're going to be talking about animating CSS shapes with CSS animations. Animating A Simple Shape Into a Complex Shape.Animating A Complex Shape Into a Simple Shape.Initial and Final Shape Have Different Number Of Points Resizing Shapes With No Specific Number Of Points.Rearranging Points To Create A New Shape.Initial and Final Shapes Have Same Number Of Points Animated Text Becomes Temporarily Unreadable.Content Fitting Inside Different Shapes.Things To Consider Before Animating Your Shaped Layouts.
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