@jalez/react-flow-smart-edge/dist/functions/pointConversion.d.ts

Smart edge routing for @xyflow/react v12+ (maintained fork of @tisoap/react-flow-smart-edge)

import type { XYPosition } from '@xyflow/react';
/**
 * Each bounding box is a collection of X/Y points in a graph, and we
 * need to convert them to "occupied" cells in a 2D grid representation.
 *
 * The top most position of the grid (grid[0][0]) needs to be equivalent
 * to the top most point in the graph (the graph.topLeft point).
 *
 * Since the top most point can have X/Y values different than zero,
 * and each cell in a grid represents a 10x10 pixel area in the grid (or a
 * gridRatio area), there's need to be a conversion between a point in a graph
 * to a point in the grid.
 *
 * We do this conversion by dividing a graph point X/Y values by the grid ratio,
 * and "shifting" their values up or down, depending on the values of the top
 * most point in the graph. The top most point in the graph will have the
 * smallest values for X and Y.
 *
 * We avoid setting nodes in the border of the grid (x=0 or y=0), so there's
 * always a "walkable" area around the grid.
 */
export declare const graphToGridPoint: (graphPoint: XYPosition, smallestX: number, smallestY: number, gridRatio: number) => XYPosition;
/**
 * Converts a grid point back to a graph point, using the reverse logic of
 * graphToGridPoint.
 */
export declare const gridToGraphPoint: (gridPoint: XYPosition, smallestX: number, smallestY: number, gridRatio: number) => XYPosition;