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[READ-ONLY] Mirror of https://github.com/okikio/postcss-spring-easing. PostCSS plugin to add that bounce and boogie that only springs can bring
easings linear postcss postcss-plugin spring spring-easing
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4.1 kB · 69 lines
TypeScript
at commit 23712df9
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869/*! * Based off of https://github.com/jakearchibald/linear-easing-generator * * Changes: * - Added comments and docs top explain logic * - Switched to iterative approach for the `ramerDouglasPeucker` algorithim * - Renamed functions, parameters and variables to improve readability and to better match a library usecase * * Copyright 2023 Jake Archibald [@jakearchibald](https://github.com/jakearchibald) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *//** * The function calculates the squared distance from a point to a line segment. * Using squared distances avoids costly square root operations and doesn't * affect the result because we're only interested in relative distances. * * @param point The point from which distance is to be measured * @param lineStart The start point of the line segment * @param lineEnd The end point of the line segment * @returns The squared distance from the point to the line segment */export declare function squaredSegmentDistance(point: [number, number], lineStart: [number, number], lineEnd: [number, number]): number;/** * Simplify a line given an array of points and a tolerance using the Ramer-Douglas-Peucker algorithm. * The tolerance determines the maximum allowed perpendicular distance from a point to the line segment * connecting its neighboring points. Points with a greater distance are included in the simplified line, * while points with a smaller distance are excluded. * * This version of the function uses an iterative approach with a stack instead of recursion. * * The iterative approach using a stack doesn't guarantee that the points will be processed in the same * order as the recursive approach. Because of the way points are pushed onto the stack, * the algorithm could sometimes process points out of order. * * To fix this before returning the final result we sort the * simplified points in increasing order of x values before returning them. * * @param points The array of points to be simplified * @param tolerance The maximum allowed perpendicular distance from a point to the line segment * connecting its neighboring points * @returns The simplified line as an array of points, it sorts the simplified points in increasing order of x values before returning them. */export declare function ramerDouglasPeucker(points: [number, number][], tolerance: number): [number, number][];/** * Simplifies a given set of points using the Ramer-Douglas-Peucker algorithm and * rounds the x and y values of the resulting points. * * @param fullPoints - The array of points to be simplified. Each point is represented as a pair of numbers: [pos, val]. * @param simplify - The maximum allowed perpendicular distance from a point to the line segment. * @param round - The number of decimal places to which point values should be rounded. * * @returns The simplified and rounded points, or null if the input was null. * * The function first checks if the input points are null. If they are, it returns null. * If they are not null, the function applies the Ramer-Douglas-Peucker algorithm to the points using the specified tolerance. * Then it rounds the x and y values of the resulting points to the specified number of decimal places. * The x values are always rounded to at least 2 decimal places because they are represented as a percentage. */export declare function getOptimizedPoints(fullPoints: [x: number, y: number][] | null, simplify: number, round: number): [x: number, y: number][] | null;//# sourceMappingURL=optimize.d.ts.map