0.0.2 • Published 3 years ago
@blueking/watermark v0.0.2
canvas 水印插件
配置项
名称(name) | 类型(type) | 默认值(default) | 描述(description) |
---|---|---|---|
factor | number | 10 | 水印密度因子 |
opacity | number | 0.05 | 透明度 |
rotate | number | 30 | 旋转角度(0 - 90),目前只对文案水印有效 |
repeat | string | repeat | 如何重复图像 repeat、repeat-x 、repeat-y 、no-repeat |
image | Image或者string | 空 | 图片水印路径或者base64类型的图片 |
text | string | 水印 | 文案水印 |
fontSize | number | 12 | 文案水印字体 |
fontFamily | string | auto | 文案水印字体 |
fontColor | string | black | 文案水印颜色 |
案例
<!DOCTYPE html>
<html>
<head>
<title>watermark</title>
<script src="https://cdn.jsdelivr.net/npm/echarts@5.1.2/dist/echarts.min.js"></script>
<script src="./watermark.js"></script>
</head>
<body>
<canvas id="canvas" width="800" height="600"></canvas>
<script>
const canvas = document.getElementById('canvas');
const myChart = echarts.init(canvas);
const option = {
title: {
text: 'ECharts 入门示例'
},
tooltip: {},
legend: {
data:['销量']
},
xAxis: {
data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
},
yAxis: {},
series: [{
name: '销量',
type: 'bar',
data: [5, 20, 36, 10, 10, 20]
}]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
const watermark = new Watermark(canvas, {
text: '水印', // 文案
fontColor: 'blue',
factor: 20
});
myChart.on('rendered', () => {
watermark.draw();
});
</script>
</body>
</html>