How to access new 'in-cell-image' from google apps script?

问题

The new function Insert > Image > Image in Cell in Google sheets inserts an image in a cell and not as an OverGridImage. I would like to insert the image in this manner and then access the image from Google Apps Script. Is this possible?

After inserting the image the formula of the cell is blank when the cell is selected. I tried searching the GAS reference, but I could not find any information on this relatively new feature. There is information on the over grid images. I would expect the in-cell image to have similar functions.

I've tried things like this:

// See what information is available on a cell with inserted image:
var image = sheet.getRange(1, 1).getFormula();
Logger.log(image);

The logs shows up empty. I tried several: .getImage() (does not exist), .getValue(), .getFormula()

I would expect to be able to access the image URL or Blob in some way.

回答1:

Answer:

This is a new feature and unfortunately at current there isn’t a method to be able to get an image inserted into a Cell this way using Google Apps Script, nor using the Sheets API.

More Information:

Attempting to get the data in a cell using the spreadsheets.get method with the following parameters

  spreadsheetId: "ID of private spreadsheet created in Drive"
  includeGridData: True
  ranges: D7
  fields: sheets/data/rowData/values

Will return a 200 response, however the image data is not returned:

{
  "sheets": [
    {
      "data": [
        {
          "rowData": [
            {
              "values": [
                {
                  "userEnteredValue": {},
                  "effectiveValue": {},
                  "effectiveFormat": {
                    "backgroundColor": {
                      "red": 1,
                      "green": 1,
                      "blue": 1
                    },
                    "padding": {
                      "top": 2,
                      "right": 3,
                      "bottom": 2,
                      "left": 3
                    },
                    "horizontalAlignment": "LEFT",
                    "verticalAlignment": "BOTTOM",
                    "wrapStrategy": "OVERFLOW_CELL",
                    "textFormat": {
                      "foregroundColor": {},
                      "fontFamily": "Arial",
                      "fontSize": 10,
                      "bold": false,
                      "italic": false,
                      "strikethrough": false,
                      "underline": false
                    },
                    "hyperlinkDisplayType": "PLAIN_TEXT"
                  }
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

Feature Request:

There is however a Feature request for this on Google’s Issue Tracker which you can find here. If you head over to the feature request page and click the star in the top left, you can let Google know that you also would like this feature, and will automatically get updates about its progress.

I hope this is helpful to you!

回答2:

I believe your goal as follows.

You want to retrieve the image in the cell of Google Spreadsheet using Google Apps Script.

Issue and workaround:

Unfortunately, in the current stage, there are no methods for retrieving the images in the cell on Spreadsheet in Spreadsheet service and Sheets API. This has already been mentioned by Rafa Guillermo's answer. So in this answer, I would like to propose a workaround for retrieving the images in the cells using Google Apps Script.

In this workaround, I use Microsoft Excel Data converted from Google Spreadsheet. Even when Google Spreadsheet is converted to Microsoft Excel Data, the images in the cells are not removed. I use this. Of course, the images can be also retrieved from HTML data converted from Spreadsheet. But in this case, the parse of HTML data is a bit complicated than that of Excel data. So here, I would like to propose to retrieve the images from Excel Data converted from Spreadsheet. The flow of this workaround is as follows.

Convert Google Spreadsheet to Microsoft Excel (XLSX data) using Drive API.
Parse XLSX data using Google Apps Script.
- When the converted XLSX data is unzipped, the data can be analyzed as the XML data. Fortunately, at Microsoft Docs, the detail specification is published as Open XML. So in this case, Microsoft Docs like XLSX, DOCX and PPTX can be analyzed using XmlService of Google Apps Script. I think that this method will be also useful for other situations.
Retrieve images from XLSX data.

Pattern 1:

In this pattern, I would like to introduce a simple method.

Sample script:

function myFunction() {
  const spreadsheetId = SpreadsheetApp.getActiveSpreadsheet().getId();
  const url = "https://docs.google.com/spreadsheets/export?exportFormat=xlsx&id=" + spreadsheetId;
  const blob = UrlFetchApp.fetch(url, {headers: {authorization: `Bearer ${ScriptApp.getOAuthToken()}`}}).getBlob().setContentType(MimeType.ZIP);
  const xlsx = Utilities.unzip(blob);
  xlsx.forEach(b => {
    const name = b.getName().match(/xl\/media\/(.+)/);
    if (name) DriveApp.createFile(b.setName(name[1]));
  });
}

In this sample script, all images in the Spreadsheet are exported as the files. So in this case, both images in the cells and over the cells from all sheets in the Spreadsheet are retrieved. And also, it cannot retrieve the cell coordinate that the image is in the cell.
- In the current stage, there are no methods for retrieving the images in Google Spreadsheet as the blob. In this sample script, this can be achieved.
This sample script cannot export the drawings. Please be careful this.
When setContentType(MimeType.ZIP) is not used, an error occurs at Utilities.unzip(blob). Please be careful this.

Pattern 2:

In this pattern, the images are retrieved with the sheet name and cell coordinate from Spreadsheet. In this case, the script becomes a bit complicated. So here, I would like to introduce the sample script using a Google Apps Script library. Ref Of course, you can see the whole script there.

Sample script:

Before you use this script, please install DocsServiceApp (The author of this GAS library is tanaike.) of the Google Apps Script library. Ref And run the function of myFunction.

function myFunction() {
  const cell = "A1";
  const sheetName = "Sheet1";
  const spreadsheetId = SpreadsheetApp.getActiveSpreadsheet().getId();
  const obj = DocsServiceApp.openBySpreadsheetId(spreadsheetId).getSheetByName(sheetName).getImages();
  console.log(obj)
  const blobs = obj.filter(({range, image}) => range.a1Notation == cell && image.innerCell);
  console.log(blobs.length)
  if (blobs.length > 0) DriveApp.createFile(blobs[0].image.blob);
}

In this sample, the image in the cell "A1" of "Sheet1" in the active Spreadsheet is retrieved, and the retrieved blob is created to the root folder as an image file.

Note:

In the current stage, when an image is inserted to Google Spreadsheet and the Spreadsheet is converted to XLSX data, the image including the XLSX data has the filename of image1, image2,,, which are not the original filename. So it seems that this is the current specification.
When the images are retrieved from XLSX data, it seems that the image is a bit different from the original one. The image format is the same. But the data size is smaller than that of the original. When the image size is more than 2048 pixels and 72 dpi, the image is modified to 2048 pixels and 72 dpi. Even when the image size is less than 2048 pixels and 72 dpi, the file size becomes smaller than that of original one. So I think that the image might be compressed. Please be careful this.
In the current stage, the drawings cannot be directly retrieved.

References:

Understanding the Open XML file formats
XML Service
DocsServiceApp

回答3:

Both Rafa Guillermo and Tanaike requested that I make an answer based on my comment to Tanaike’s post. I do so below, but it falls into the category of a workaround rather than an "answer". A true answer would address the exact question in the original post.

As I said in my comment, I’ve used this method for simple cases, and I’ve also done some tests which suggest it preserves image resolution. Since I've only used this for simple cases like the one below, I don't know how generally it will work.

The steps I provide below are (to the best of my ability) what I remember going through as I did one specific example. Here are the first dozen rows of the final result after using this method:

This example had a total of 7100+ rows

Column 1 contained 430+ images or blank cells, most of which repeated multiple times

Column 2 contained unique IDs for each image

Column 3 are the file names which were tied to each ID using the method below

Steps to extract images from google sheet cells:

Resize column and rows containing images to something large (eg, 300)
Use File>Publish to Web & paste generated link into a new tab
In Chrome, use File>Save Page As…>Webpage, Complete
Images will be found in an html folder ending with _files
If needed, rename files to use image extension and list in order*

To key downloaded image file names to image cells in the sheet:

Duplicate sheet since the following will remove original data
Select columns containing images and IDs and use Data>Remove Duplicates
Add a new column next to the IDs containing the file names**
Use VLOOKUP function to transfer all file names to original sheet based on the unique IDs***

*In my example the images all had names like p.txt, p(1).txt, p(2).txt, etc… In Mac OS Finder, I selected all files and used right click>Rename files… and then the replace option to replace .txt with .jpg, (1) with (001), etc…

**file name listing can be obtained, for example, using the Terminal ls -l command

***for example, I used: =vlookup(B2,unique!$B$2:$C$430,2,false)

来源：https://stackoverflow.com/questions/56733340/how-to-access-new-in-cell-image-from-google-apps-script

标签

google-apps-script

google-sheets