swOperation/node_modules/@antv/g2/esm/mark/polygon.js

import { baseGeometryChannels, basePostInference, basePreInference, tooltip2d, } from './utils';
/**
 * Convert value for each channel to polygon shapes.
 */
export const Polygon = () => {
    return (index, scale, value, coordinate) => {
        const Xn = Object.entries(value)
            .filter(([key]) => key.startsWith('x'))
            .map(([, value]) => value);
        const Yn = Object.entries(value)
            .filter(([key]) => key.startsWith('y'))
            .map(([, value]) => value);
        const P = index.map((i) => {
            const Pn = [];
            for (let j = 0; j < Xn.length; j++) {
                const x = Xn[j][i];
                if (x === undefined)
                    break;
                const y = Yn[j][i];
                Pn.push(coordinate.map([+x, +y]));
            }
            return Pn;
        });
        return [index, P];
    };
};
const shapes = ['polygon', 'ribbon'];
Polygon.props = {
    defaultShape: 'polygon',
    defaultLabelShape: 'label',
    composite: false,
    channels: [
        ...baseGeometryChannels({ shapes }),
        { name: 'x', required: true },
        { name: 'y', required: true },
    ],
    preInference: [...basePreInference()],
    postInference: [...basePostInference(), ...tooltip2d()],
};
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