Apache POI-HSSF在将图像添加到Excel单元格时失真图像大小 [英] Apache POI-HSSF Distorts Image Size when Adding Picture into Excel Cell

问题描述

我正在使用Apache POI-HSSF将图片添加到单元格中。图像是120x100，但无论我做了什么，如何调整大小，Excel电子表格总是显示跨越多行，并将其扭曲到比宽度更大的高度。

如何保留原始大小？

我的代码：

  byte [] bytes = IOUtils.toByteArray（is）; 
 int pictureIdx = wb.addPicture（bytes，Workbook.PICTURE_TYPE_JPEG）; 
 is.close（）; 
 
 //添加图片形状
 CreationHelper helper = wb.getCreationHelper（）; 
 ClientAnchor anchor = helper.createClientAnchor（）; 
 //创建绘图族长。这是所有形状的顶级容器。 
绘图= sheet1.createDrawingPatriarch（）; 
 //设置图片的左上角，
 //图片＃resize（）的后续调用将相对于它操作
 
 anchor.setAnchorType（0）; 
 anchor.setCol1（1）; 
 anchor.setRow1（1）; 
 
图片pict = drawing.createPicture（anchor，pictureIdx）; 
 
 //相对于其左上角的自动大小图片
 pict.resize（）; 
  

我已经尝试过所有dx / dy坐标和Col / Row。这个位置并不重要，它的问题是水平地拉伸图像。感谢

解决方案

我一直面临类似的问题，我添加的图像变得扭曲。我试过pict.resize（）和sheet.autoSizeColumn（）但它没有工作。最后我找到了以下URL： -
https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/ss/examples/AddDimensionedImage.java

我将上面的类添加到我的代码中，并使用它将图像添加到excel中。我能够添加图像很少失真。希望这也有助于你。我写下面的代码： -

  BufferedImage imageIO = ImageIO.read（new URL（image））; 
 int height = imageIO.getHeight（）; 
 int width = imageIO.getWidth（）; 
 int relativeHeight =（int）（（（double）height / width）* 28.5）; 
 new AddDimensionedImage（）。addImageToSheet（2，sheet.getPhysicalNumberOfRows（） -  1，sheet，sheet.createDrawingPatriarch（），new URL（image），30，relativeHeight，AddDimensionedImage.EXPAND_ROW）; 
  

I am adding a picture into a cell using Apache POI-HSSF. The image is 120x100 but no matter what I do and how I resize it, the Excel spreadsheet always shows it spanning multiple rows and distorts it to a much bigger height than width.

How do I keep the original size?

My code:

InputStream is = new FileInputStream(getImageURL());
byte[] bytes = IOUtils.toByteArray(is);
int pictureIdx = wb.addPicture(bytes, Workbook.PICTURE_TYPE_JPEG);
is.close();

//add a picture shape
CreationHelper helper = wb.getCreationHelper();
ClientAnchor anchor = helper.createClientAnchor();
// Create the drawing patriarch.  This is the top level container for all shapes.
Drawing drawing = sheet1.createDrawingPatriarch();
//set top-left corner of the picture,
//subsequent call of Picture#resize() will operate relative to it

anchor.setAnchorType(0);
anchor.setCol1(1);
anchor.setRow1(1);

Picture pict = drawing.createPicture(anchor, pictureIdx);

//auto-size picture relative to its top-left corner
pict.resize();

I've tried all dx/dy coordinates and Col/Row. The position doesn't matter, the problem it stretches the image horizontally. Thanks

解决方案

I had been facing the similar issue where the image I added was getting distorted. I tried pict.resize() and sheet.autoSizeColumn() but it didn't work. Finally I found the below URL:- https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/ss/examples/AddDimensionedImage.java

I added the above class into my code and used it's method to add the image into excel. I was able to add the image with little distortion. Hope this helps to you also. I wrote below code:-

BufferedImage imageIO = ImageIO.read(new URL(image));
int height= imageIO.getHeight();
int width=imageIO.getWidth();
int relativeHeight=(int)(((double)height/width)*28.5);
new AddDimensionedImage().addImageToSheet(2,  sheet.getPhysicalNumberOfRows()-1 , sheet, sheet.createDrawingPatriarch(),new URL(image), 30, relativeHeight, AddDimensionedImage.EXPAND_ROW);

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