The d3.interpolateTransformCss() function in D3.js is used to return the interpolator function between two given CssTransform properties. Several properties of Transform like translate, rotate, skewX and scale can be used here.
Syntax:
d3.interpolateTransformCss(a, b);
Parameters:
- a: It is a string of CSS Transform property.
- b: It is a string of CSS Transform property.
Returns: It returns the interpolator function.
Below given are a few examples of the above function.
Example 1:
html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title></head><style></style><body> <!--Fetching from CDN of D3.js --> <script type = "text/javascript" </script> <script>// It gives the intermediate value between two given properties console.log(d3.interpolateTransformCss( "translateX(10px) scale(1.5)", "translateY(15px) scale(2)" )(0.5))// It gives interpolate value with 0 part of "a" and 1 part of "b" console.log(d3.interpolateTransformCss( "translateX(10px) scale(1.5)", "translateY(15px) scale(2)" )(1))// It gives interpolate value with 0.2 part of "a" and 0.8 part of "b" console.log(d3.interpolateTransformCss( "translateX(10px) scale(1.5)", "translateY(15px) scale(2)" )(0.8)) </script></body></html> |
Output:
Example 2:
html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title></head><style> .box1{ margin-bottom: 40px; color: white; border: 2px solid black; width: 150px; height: 150px; background-color: green; transform: scale(); } div{ height: 100vh; display:flex; margin-left: 60px; align-items: center; }</style><body> D3.interpolateTransformCss() <div> <div class="box1"> </div> <div class="box2"> </div> <button>Clickme</button> </div> <!--fetching from CDN of D3.js --> <script type = "text/javascript" </script> <script> let box1=document.querySelector(".box1"); let btn=document.querySelector("button"); let interpolateFunc=d3.interpolateTransformCss( "translateY(15px) scale(1.5)", "translateX(3px) rotate(10deg)" )(0.5); func=()=>{ box1.style.transform=interpolateFunc; } btn.addEventListener("click", func); </script></body></html> |
Output:
Before click:
After click:
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