39 lines
1.3 KiB
TypeScript
39 lines
1.3 KiB
TypeScript
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { Bezier } from 'bezier-js';
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import { type IPoint, Point } from '@flowgram-adapter/fixed-layout-editor';
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import { type CustomLine } from '../typings';
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import { getBezierVerticalControlPoints } from '../components/lines-render/utils';
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export const getLineId = (line?: CustomLine) => {
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if (!line) {
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return undefined;
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}
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return `${line.from.id}${line.to.id}`;
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};
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export const calcDistance = (pos: IPoint, line?: CustomLine) => {
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if (!line) {
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return Number.MAX_SAFE_INTEGER;
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}
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const { fromPoint, toPoint } = line;
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const controls = getBezierVerticalControlPoints(line.fromPoint, line.toPoint);
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const bezier = new Bezier([fromPoint, ...controls, toPoint]);
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return Point.getDistance(pos, bezier.project(pos));
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};
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