antv-l7/dev-demos/features/point/pointCircle.md

### point - circle
```tsx
import { PointLayer, Scene } from '@antv/l7';
import { GaodeMap } from '@antv/l7-maps';
import React, { useEffect } from 'react';

export default () => {
    useEffect(() => {
        const scene = new Scene({
            id: 'point_circle',
            pickBufferScale: 1.0,
            map: new GaodeMap({
                style: 'light',
                center: [-121.24357, 37.58264],
                pitch: 0,
                zoom: 6.45,
            }),
        });
        scene.on('loaded', () => {
            fetch(
                'https://gw.alipayobjects.com/os/basement_prod/6c4bb5f2-850b-419d-afc4-e46032fc9f94.csv',
            )
                .then((res) => res.text())
                .then((data) => {
                    const pointLayer = new PointLayer({})
                        .source(data.slice(0, 1000), {
                            parser: {
                                type: 'csv',
                                x: 'Longitude',
                                y: 'Latitude',
                            },
                        })
                        .shape('circle')
                        .size(16)
                        .active(true)
                        .select({
                            color: 'red',
                        })
                        .color('Magnitude', [
                            '#0A3663',
                            '#1558AC',
                            '#3771D9',
                            '#4D89E5',
                            '#64A5D3',
                            '#72BED6',
                            '#83CED6',
                            '#A6E1E0',
                            '#B8EFE2',
                            '#D7F9F0',
                        ])
                        .style({
                            opacity: 1,
                            strokeWidth: 0,
                            stroke: '#fff',
                        });

                    scene.addLayer(pointLayer);
                },
                )
        })
    }, [])
    return (
        <div
            id="point_circle"
            style={{
                height:'500px',
                position: 'relative'
            }}
        />
    );
}

```