サンプルデータの準備 データはおでかけマップさんのデータをお借りしました https://www.odekakemap.com/station/ A列を駅名,B列を緯度、C列を経度とします Google Action Script スプレッドシートのツール -> スクリプトエディタを選択します 以下のコードをコピペ function getData(sheetName) { var sheet = SpreadsheetApp.getActive().getSheetByName(sheetName); var rows = sheet.getDataRange().getValues(); return rows.map(function(row) { var obj = {}; obj.type = "Feature" obj.properties = {}; obj.properti
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