JSON 对象到 XSLT 到 XML - ZD7EFA19FBE7D3972FD5ADB6024223D7

Question

This is a web application which accepts JSON, converts to XML and returns back base64 of the pdf generated. It accepts two Objects Data and it's Dimension to generate the PDF. Data JSON here is the value to be printed on the PDF and Dimension JSON here is the position where the data is to be printed, it also specifies the top and left margin of the PDF. I was able to map JSON to the corresponding Data Class and Dimension Class and successfully generated the corresponding PDF but encountered few problems related to text positions.

1. I was able to view text on the pdf only after setting width="40px"; height="20px"; fontSize = "10pt" width="40px"; height="20px"; fontSize = "10pt" width="40px"; height="20px"; fontSize = "10pt" . Is there a way to set width and height to default fontSize's width and height and not to include it explicitly.

2. Only after converting dimension to cm , the pdf is able to render text. Directly using the dimension and appending it with px doesn't work.

"Data" : {
    "TopText": "Hello World",
    "FirstName" : "Michael",
    "MiddleName" :"Shelby",
    "LastName" : "Jordan"
    "BottomText" : "Thank you"
}

"Dimensions": {
    "Left": "150",              // left = 150
    "Top": "100",               // top = 100
    "TopText": "8900,200",        // left=8900 and top = 200
    "FirstName" : "0,1000",     // left = 0, top = 1000
    "MiddleName" :"4000, 1000",
    "LastName" : "8000, 1000"
    "BottomText" : "8900, 14000"
}

Class Data
{
    TopText {get;set;}
    FirstName {get;set;}
    ...
}
Class Dimension
{
    Left {get;set;}
    Top {get;set;}
    TopText {get;set;}
    FirstName {get;set;}
    ...
}

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
...
...
    <fo:simple-page-master master-name="simple"
                    page-height="30.50cm"
                    page-width="21.80cm"
                    margin-top="0cm"
                    margin-bottom="0cm"
                    margin-left="0cm"
                    margin-right="0cm">

Problem lies here where I am trying to convert these figures to cm and displaying the result. PDF displays text but again I think there is a better way to achieve this without altering the dimension values provided. Also in some examples I noticed, the total left is divided by 590 and I do not know what is this 590 . I'd highly appreciate your help. Thanks

 public string GenerateXSLT()
        {
           string width = "40px";
           string height = "20px";
           string fontSize = "10pt";
           
           int _Top = ConvertHelper.ToInt32(Dimension.Top);
           int _Left = ConvertHelper.ToInt32(Dimension.Left);

           //On Looping every property of Dimension with (",")
           int index = Data.IndexOf(','); //index of (",") 
           double leftVal = Convert.ToDouble(Data.Substring(0, i) //(8900,200) => 8900
           double topVal = Convert.ToDouble(Data.Substring(i + 1) //(8900,200) => 200

           Totleft = Math.Round((leftVal + _Left) / _Left, 2).ToString() + "cm";
           TotTop = Math.Round((topVal + _Top) / _Top, 2).ToString() + "cm";

            StringBuilder str = new StringBuilder();
                str.Append($@"<fo:block-container position=""absolute"" width=""{width}"" left=""{Totleft}"" top=""{TotTop}"" height=""{height}"" font-size=""{fontSize}"" font-family=""Arial"">");