@antv/g6/esm/utils/transform.js

A Graph Visualization Framework in JavaScript

import { isNumber } from '@antv/util';
/**
 * <zh/> 从 transform 字符串中替换 translate 部分
 *
 * <en/> replace the translate part from the transform string
 * @param x - <zh/> x | <en/> x
 * @param y - <zh/> y | <en/> y
 * @param z - <zh/> z | <en/> z
 * @param transform - <zh/> transform 字符串 | <en/> transform string
 * @returns <zh/> 替换后的 transform 字符串，返回 null 表示无需替换 | <en/> the replaced transform string, return null means no need to replace
 */
export function replaceTranslateInTransform(x, y, z, transform = []) {
    if (!transform && x === 0 && y === 0 && z === 0)
        return null;
    if (Array.isArray(transform)) {
        let translateIndex = -1;
        const newTransform = [];
        for (let i = 0; i < transform.length; i++) {
            const t = transform[i];
            if (t[0] === 'translate') {
                if (t[1] === x && t[2] === y)
                    return null;
                translateIndex = i;
                newTransform.push(['translate', x, y]);
            }
            else if (t[0] === 'translate3d') {
                if (t[1] === x && t[2] === y && t[3] === z)
                    return null;
                translateIndex = i;
                newTransform.push(['translate3d', x, y, z !== null && z !== void 0 ? z : 0]);
            }
            else {
                newTransform.push(t);
            }
        }
        if (translateIndex === -1) {
            newTransform.splice(0, 0, isNumber(z) ? ['translate3d', x, y, z !== null && z !== void 0 ? z : 0] : ['translate', x, y]);
        }
        if (newTransform.length === 0)
            return null;
        return newTransform;
    }
    const removedTranslate = transform ? transform.replace(/translate(3d)?\([^)]*\)/g, '') : '';
    if (z === 0) {
        return `translate(${x}, ${y})${removedTranslate}`;
    }
    else {
        return `translate3d(${x}, ${y}, ${z})${removedTranslate}`;
    }
}
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