en/builder/src/echarts3/component/helper/brushHelper.js

import BoundingRect from 'zrender/src/core/BoundingRect';
import { onIrrelevantElement } from './cursorHelper';
import * as graphicUtil from '../../util/graphic';
export function makeRectPanelClipPath(rect) {
  rect = normalizeRect(rect);
  return function (localPoints, transform) {
    return graphicUtil.clipPointsByRect(localPoints, rect);
  };
}
export function makeLinearBrushOtherExtent(rect, specifiedXYIndex) {
  rect = normalizeRect(rect);
  return function (xyIndex) {
    var idx = specifiedXYIndex != null ? specifiedXYIndex : xyIndex;
    var brushWidth = idx ? rect.width : rect.height;
    var base = idx ? rect.x : rect.y;
    return [base, base + (brushWidth || 0)];
  };
}
export function makeRectIsTargetByCursor(rect, api, targetModel) {
  rect = normalizeRect(rect);
  return function (e, localCursorPoint, transform) {
    return rect.contain(localCursorPoint[0], localCursorPoint[1]) && !onIrrelevantElement(e, api, targetModel);
  };
} // Consider width/height is negative.

function normalizeRect(rect) {
  return BoundingRect.create(rect);
}