type TSPdfBasicRange = class
public
    function Create();
    function Do();virtual;

public
    StartX: real;
    StartY: real; // range的起始坐标(x,y)
    EndX: real;
    EndY: real; // range的结束坐标(x,y)
    Width: real;
    FixedHeight: real;
    DynamicHeight: real;
    Page: PdfPage;
end;

function TSPdfBasicRange.Create();
begin
    self.StartX := 0;
    self.StartY := 0;
    self.EndX := 0;
    self.EndY := 0;
    self.Width := 0;
    self.FixedHeight := 0;
    self.DynamicHeight := 0;
    self.Page := nil;
end;