From c6f0c48950c794fd8b9cffa45200ffc0e038b60b Mon Sep 17 00:00:00 2001
From: thinkinggis <lzx199065@gmail.com>
Date: Mon, 27 Jan 2020 15:25:40 +0800
Subject: [PATCH] fix: delete gird2

---
 packages/source/src/transform/grid2.ts | 94 --------------------------
 1 file changed, 94 deletions(-)
 delete mode 100644 packages/source/src/transform/grid2.ts

diff --git a/packages/source/src/transform/grid2.ts b/packages/source/src/transform/grid2.ts
deleted file mode 100644
index 4b4b731bcf..0000000000
--- a/packages/source/src/transform/grid2.ts
+++ /dev/null
@@ -1,94 +0,0 @@
-/**
- * 生成四边形热力图
- */
-import {
-  IParseDataItem,
-  IParserCfg,
-  IParserData,
-  ISourceCFG,
-  ITransform,
-} from '@antv/l7-core';
-import { aProjectFlat, metersToLngLat } from '@antv/l7-utils';
-import { statMap } from '../../../utils/src/statistics';
-
-interface IGridHash {
-  [key: string]: any;
-}
-interface IGridOffset {
-  yOffset: number;
-  xOffset: number;
-}
-interface IRawData {
-  coordinates: [number, number];
-  [key: string]: any;
-}
-const R_EARTH = 6378000;
-
-export function aggregatorToGrid(data: IParserData, option: ITransform) {
-  const dataArray = data.dataArray;
-  const { size = 10 } = option;
-  const pixlSize = ((size / (2 * Math.PI * R_EARTH)) * (256 << 20)) / 2;
-  const screenPoints: IRawData[] = dataArray.map((point: IParseDataItem) => {
-    const [x, y] = aProjectFlat(point.coordinates);
-    return {
-      ...point,
-      coordinates: [parseInt(x.toFixed(0), 10), parseInt(y.toFixed(0), 10)],
-    };
-  });
-  const gridHash = _pointsGridHash(screenPoints, pixlSize);
-  const layerData = _getGridLayerDataFromGridHash(gridHash, pixlSize, option);
-  return {
-    yOffset: pixlSize / 2,
-    xOffset: pixlSize / 2,
-    dataArray: layerData,
-  };
-}
-
-function _pointsGridHash(dataArray: any[], size: number) {
-  const gridHash: IGridHash = {};
-  for (const point of dataArray) {
-    const x = point.coordinates[0];
-    const y = point.coordinates[1];
-    const latIdx = Math.floor(y / size);
-    const lonIdx = Math.floor(x / size);
-    const key = `${latIdx}-${lonIdx}`;
-
-    gridHash[key] = gridHash[key] || { count: 0, points: [] };
-    gridHash[key].count += 1;
-    gridHash[key].points.push(point);
-  }
-
-  return gridHash;
-}
-
-function _getGridLayerDataFromGridHash(
-  gridHash: IGridHash,
-  size: number,
-  option: ITransform,
-) {
-  return Object.keys(gridHash).reduce((accu, key, i) => {
-    const idxs = key.split('-');
-    const latIdx = parseInt(idxs[0], 10);
-    const lonIdx = parseInt(idxs[1], 10);
-    const item: {
-      [key: string]: any;
-    } = {};
-    if (option.field && option.method) {
-      const columns = getColumn(gridHash[key].points, option.field);
-      item[option.method] = statMap[option.method](columns);
-    }
-    Object.assign(item, {
-      _id: i + 1,
-      coordinates: [lonIdx * size, latIdx * size],
-      count: gridHash[key].count,
-    });
-    // @ts-ignore
-    accu.push(item);
-    return accu;
-  }, []);
-}
-function getColumn(data: any[], columnName: string) {
-  return data.map((item) => {
-    return item[columnName] * 1;
-  });
-}