Fabric.js overlayWith() 方法
overlayWith() 方法 用于将给定的颜色叠加在以其参数取得的颜色上。
语法:
overlayWith(otherColor)
参数: 这个方法接受一个参数,如上所述,并在下面描述:
- otherColor: 这个参数保存了指定的颜色。
返回值: 这个方法返回叠加在一起的颜色。
示例1:
<!DOCTYPE html>
<html>
<head>
<!-- Adding the FabricJS library -->
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/fabric.js/3.6.2/fabric.min.js">
</script>
</head>
<body>
<script type="text/javascript">
// Calling the overlayWith() function over
// the specified color values
console.log(new fabric.Color("rgb(10, 40, 13)").overlayWith("rgb(10, 41, 13, 1)"));
</script>
</body>
</html>
输出:
{"_source":[10,41,13,1]}
示例2:
<!DOCTYPE html>
<html>
<head>
<!-- Adding the FabricJS library -->
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/fabric.js/3.6.2/fabric.min.js">
</script>
</head>
<body>
<script type="text/javascript">
// Initializing some color values in different color format
var A = "hex(fff00f)";
var B = "hsl(12%, 13%, 25%)";
var C = "hsla(10%, 40%, 13%, 0.6)";
// Calling the overlayWith() function over
// the above specified color values
console.log(new fabric.Color(A).overlayWith("rgb(10, 41, 13, 1)"));
console.log(new fabric.Color(A).overlayWith("rgba(1, 4, 3, 0.2)"));
console.log(new fabric.Color(A).overlayWith("hex(ffffff)"));
</script>
</body>
</html>
输出:
{"_source":[5,21,7,1]}
{"_source":[1,2,2,1]}
{"_source":[0,0,0,1]}