在iTextSharp的图像缩放， [英] scaling images in iTextSharp

问题描述

我有一些麻烦标定我正在插入的图像。
我必须做一些错误的，因为它并没有改变，无论我做什么。
这是代码中，我的那一刻，但它似乎并没有工作。
中的图像被插入精细，它只是不结垢，无论我尝试什么样的价值观。

任何明显的事情我做错了什么？任何普通的事情，人们做错了什么？
我在C＃中的工作，但我相信语法是相同的（或多或少）在所有的语言。

 图像imgSpine = Image.GetInstance（strSpine）; 
 imgSpine.ScaleAbsolute（2，55）; 
 SpineCell.Image = imgSpine; 
 
 SpineCell.Image.Border = Rectangle.NO_BORDER; 
 SpineCell.VerticalAlignment = Element.ALIGN_TOP; 
 SpineCell.Horizo​​ntalAlignment = Element.ALIGN_LEFT; 
 
 pTable.AddCell（SpineCell）; 
  

解决方案

看着的来源， cell.Image 总是缩放以适应单元格。你会想包装在块图像或一些类似元素那将持有图片。

的

call.Image 属性也总是写入在 PdfPTable.TEXTCANVAS 画布在PdfPTable，所以你不要有超过Z次序任何控制。

选项

1. 包裹图像中的块而不是


2. 使用单元格事件处理和绘制。像自己。

1号很可能的多的更容易。

I'm having some trouble scaling an image that i am inserting. I must be doing something wrong, because it does not change at all, no matter what i do. This is the code i have at the moment, but it does not seem to work. The image gets inserted fine, it just doesn't scale, no matter what values i try.

Any obvious things i am doing wrong? Any common things that people do wrong? I am working in C#, but i assume the syntax is the same (more or less) in all languages.

    Image imgSpine = Image.GetInstance(strSpine);
    imgSpine.ScaleAbsolute(2, 55);
    SpineCell.Image = imgSpine;

    SpineCell.Image.Border = Rectangle.NO_BORDER;
    SpineCell.VerticalAlignment = Element.ALIGN_TOP;
    SpineCell.HorizontalAlignment = Element.ALIGN_LEFT;

    pTable.AddCell(SpineCell);

解决方案

Looking at the source, cell.Image is always scaled to fit the cell. You'll want to wrap your image in a Chunk or some similar Element that'll hold an Image.

The call.Image property is also always written to a the PdfPTable.TEXTCANVAS canvas in the PdfPTable, so you don't have any control over Z order.

Options:

1. Wrap the image in a Chunk instead.
2. Use a Cell Event handler and draw the image yourself.

Number 1 is probably much easier.

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