redux-devtools/packages/d3tooltip/README.md
Nathan Bierema b82de74592
Add ESM builds (#997)
* Use rollup for d3tooltip

* Use rollup for map2tree

* Set moduleResolution

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2022-01-10 15:41:53 +00:00

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Markdown

# d3tooltip
This tooltip aims for a minimal yet highly configurable API. It has a long way to go, but the essentials are there.
It was created by [@romseguy](https://github.com/romseguy) and merged from [`romseguy/d3tooltip`](https://github.com/romseguy/d3tooltip).
## Installation
`npm install d3-state-visualizer`
## Quick usage
```javascript
import d3 from 'd3';
import { tooltip } from 'd3tooltip';
const DOMNode = document.getElementById('chart');
const root = d3.select(DOMNode);
const vis = root.append('svg');
let options = {
offset: {left: 30, top: 10}
};
vis.selectAll('circle').data(someData).enter()
.append('circle')
.attr('r', 10)
.call(
d3tooltip(d3, 'tooltipClassName', options)
.text((d, i) => toStringOrHtml(d))
.attr({ 'class': 'anotherClassName' })
.style({ 'min-width': '50px', 'border-radius: 5px' })
)
.on({
mouseover(d, i) {
d3.select(this).style({
fill: 'skyblue'
});
},
mouseout(d, i) {
d3.select(this).style({
fill: 'black'
});
}
});
```
## API
| Option | Type | Default | Description |
| -------- | ----------- | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `root` | DOM.Element | `body` | The tooltip will be added as a child of that element. You can also use a D3 [selection](https://github.com/mbostock/d3/wiki/Selections#d3_select) |
| `left` | Number | `undefined` | Sets the tooltip `x` absolute position instead of the mouse `x` position, relative to the `root` element |
| `top` | Number | `undefined` | Sets the tooltip `y` absolute position instead of the mouse `y` position, relative to the `root` element |
| `offset` | Object | `{left: 0, top: 0}` | Sets the distance, starting from the cursor position, until the tooltip is rendered. **Warning**: only applicable if you don't provide a `left` or `top` option |