@technobuddha/library/dist/midpoint.js

A large library of useful functions

/**
 * Calculates a point at a given fraction (`part`) along a line segment.  By default it returns the
 * true midpoint of the line segment
 * @param line - The line segment defined by its start (`x0`, `y0`) and end (`x1`, `y1`) coordinates.
 * @param part - The fraction along the line segment at which to calculate the point (default is `0.5` for the midpoint).
 * @returns The Cartesian coordinates of the calculated point.
 * @example
 * ```typescript
 * midpoint({ x0: 0, y0: 0, x1: 4, y1: 4 }); // { x: 2, y: 2 }
 * ```
 * @group Geometry
 * @category Line Segment
 */
export function midpoint(line, part = 0.5) {
    // Calculate the midpoint of the line segment
    return {
        x: line.x0 + (line.x1 - line.x0) * part,
        y: line.y0 + (line.y1 - line.y0) * part,
    };
}
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