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/**
* Copyright Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// [START apps_script_sheets_custom_functions_quickstart]
/**
* @OnlyCurrentDoc Limits the script to only accessing the current sheet.
*/
/**
* A special function that runs when the spreadsheet is open, used to add a
* custom menu to the spreadsheet.
*/
function onOpen() {
var spreadsheet = SpreadsheetApp.getActive();
var menuItems = [
{name: 'Prepare sheet...', functionName: 'prepareSheet_'},
{name: 'Generate step-by-step...', functionName: 'generateStepByStep_'}
];
spreadsheet.addMenu('Directions', menuItems);
}
/**
* A custom function that converts meters to miles.
*
* @param {Number} meters The distance in meters.
* @return {Number} The distance in miles.
*/
function metersToMiles(meters) {
if (typeof meters != 'number') {
return null;
}
return meters / 1000 * 0.621371;
}
/**
* A custom function that gets the driving distance between two addresses.
*
* @param {String} origin The starting address.
* @param {String} destination The ending address.
* @return {Number} The distance in meters.
*/
function drivingDistance(origin, destination) {
var directions = getDirections_(origin, destination);
return directions.routes[0].legs[0].distance.value;
}
/**
* A function that adds headers and some initial data to the spreadsheet.
*/
function prepareSheet_() {
var sheet = SpreadsheetApp.getActiveSheet().setName('Settings');
var headers = [
'Start Address',
'End Address',
'Driving Distance (meters)',
'Driving Distance (miles)'];
var initialData = [
'350 5th Ave, New York, NY 10118',
'405 Lexington Ave, New York, NY 10174'];
sheet.getRange('A1:D1').setValues([headers]).setFontWeight('bold');
sheet.getRange('A2:B2').setValues([initialData]);
sheet.setFrozenRows(1);
sheet.autoResizeColumns(1, 4);
}
/**
* Creates a new sheet containing step-by-step directions between the two
* addresses on the "Settings" sheet that the user selected.
*/
function generateStepByStep_() {
var spreadsheet = SpreadsheetApp.getActive();
var settingsSheet = spreadsheet.getSheetByName('Settings');
settingsSheet.activate();
// Prompt the user for a row number.
var selectedRow = Browser.inputBox('Generate step-by-step',
'Please enter the row number of the addresses to use' +
' (for example, "2"):',
Browser.Buttons.OK_CANCEL);
if (selectedRow == 'cancel') {
return;
}
var rowNumber = Number(selectedRow);
if (isNaN(rowNumber) || rowNumber < 2 ||
rowNumber > settingsSheet.getLastRow()) {
Browser.msgBox('Error',
Utilities.formatString('Row "%s" is not valid.', selectedRow),
Browser.Buttons.OK);
return;
}
// Retrieve the addresses in that row.
var row = settingsSheet.getRange(rowNumber, 1, 1, 2);
var rowValues = row.getValues();
var origin = rowValues[0][0];
var destination = rowValues[0][1];
if (!origin || !destination) {
Browser.msgBox('Error', 'Row does not contain two addresses.',
Browser.Buttons.OK);
return;
}
// Get the raw directions information.
var directions = getDirections_(origin, destination);
// Create a new sheet and append the steps in the directions.
var sheetName = 'Driving Directions for Row ' + rowNumber;
var directionsSheet = spreadsheet.getSheetByName(sheetName);
if (directionsSheet) {
directionsSheet.clear();
directionsSheet.activate();
} else {
directionsSheet =
spreadsheet.insertSheet(sheetName, spreadsheet.getNumSheets());
}
var sheetTitle = Utilities.formatString('Driving Directions from %s to %s',
origin, destination);
var headers = [
[sheetTitle, '', ''],
['Step', 'Distance (Meters)', 'Distance (Miles)']
];
var newRows = [];
for (var i = 0; i < directions.routes[0].legs[0].steps.length; i++) {
var step = directions.routes[0].legs[0].steps[i];
// Remove HTML tags from the instructions.
var instructions = step.html_instructions.replace(/<br>|<div.*?>/g, '\n')
.replace(/<.*?>/g, '');
newRows.push([
instructions,
step.distance.value
]);
}
directionsSheet.getRange(1, 1, headers.length, 3).setValues(headers);
directionsSheet.getRange(headers.length + 1, 1, newRows.length, 2)
.setValues(newRows);
directionsSheet.getRange(headers.length + 1, 3, newRows.length, 1)
.setFormulaR1C1('=METERSTOMILES(R[0]C[-1])');
// Format the new sheet.
directionsSheet.getRange('A1:C1').merge().setBackground('#ddddee');
directionsSheet.getRange('A1:2').setFontWeight('bold');
directionsSheet.setColumnWidth(1, 500);
directionsSheet.getRange('B2:C').setVerticalAlignment('top');
directionsSheet.getRange('C2:C').setNumberFormat('0.00');
var stepsRange = directionsSheet.getDataRange()
.offset(2, 0, directionsSheet.getLastRow() - 2);
setAlternatingRowBackgroundColors_(stepsRange, '#ffffff', '#eeeeee');
directionsSheet.setFrozenRows(2);
SpreadsheetApp.flush();
}
/**
* Sets the background colors for alternating rows within the range.
* @param {Range} range The range to change the background colors of.
* @param {string} oddColor The color to apply to odd rows (relative to the
* start of the range).
* @param {string} evenColor The color to apply to even rows (relative to the
* start of the range).
*/
function setAlternatingRowBackgroundColors_(range, oddColor, evenColor) {
var backgrounds = [];
for (var row = 1; row <= range.getNumRows(); row++) {
var rowBackgrounds = [];
for (var column = 1; column <= range.getNumColumns(); column++) {
if (row % 2 == 0) {
rowBackgrounds.push(evenColor);
} else {
rowBackgrounds.push(oddColor);
}
}
backgrounds.push(rowBackgrounds);
}
range.setBackgrounds(backgrounds);
}
/**
* A shared helper function used to obtain the full set of directions
* information between two addresses. Uses the Apps Script Maps Service.
*
* @param {String} origin The starting address.
* @param {String} destination The ending address.
* @return {Object} The directions response object.
*/
function getDirections_(origin, destination) {
var directionFinder = Maps.newDirectionFinder();
directionFinder.setOrigin(origin);
directionFinder.setDestination(destination);
var directions = directionFinder.getDirections();
if (directions.status !== 'OK') {
throw directions.error_message;
}
return directions;
}
// [END apps_script_sheets_custom_functions_quickstart]
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