There's no solution for that problem. Table text and the generic text placed with Document.add() uses the operator Td that is incremental. As the numbers greater than 1 are place in the PDF with 2 decimal digits small discrepancies may arise. PdfPTable always places the text at absolute positions and does not have this rounding problems.
Best Regards, Paulo Soares > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Carmona Perez, David > Sent: Tuesday, May 18, 2004 9:49 AM > To: Itext-Questions (E-mail) > Subject: RV: [iText-questions] Background misaligned in tables > > > Hi all, > > Finally I have found the cause of the problem, it is due to > rounding errors. > Text transforms are done incrementally for each row, so even > a small error is accumulated. > I always work in millimeters and do the conversion to points. > Here is some small sample code that shows this problem: > > import java.io.FileOutputStream; > import java.awt.Color; > > import com.lowagie.text.*; > import com.lowagie.text.pdf.PdfWriter; > > public class Pru { > // Conversion factor to millimeters > static final float mm = 72/25.4f; > public static void main(String[] args) { > Document document = new Document(); > try { > PdfWriter.getInstance(document, new > FileOutputStream("a.pdf")); > document.open(); > // step 4: we create a table and add it > to the document > Table tbl = new Table(3); > for (int row = 0; row < 50; row++) { > for (int col = 0; col < 3; col++) { > Cell cell = new Cell(); > cell.add(new > Chunk(""+row+"."+col, new Font(Font.HELVETICA, 8))); > cell.setLeading(16-2.1f*mm); > > cell.setVerticalAlignment(Element.ALIGN_TOP); > > cell.setBackgroundColor(row % 2 == 0 ? Color.yellow:Color.white); > tbl.addCell(cell); > } > } > document.add(tbl); > System.out.println("Output file created > successfully"); > > } catch(Exception e) { > e.printStackTrace(); > } > document.close(); > } > } > > I attach the output PDF file. > The problem disappers if I do this: > cell.setLeading((int)(16-2.1f*mm)); > > Any solution to this problem? > > -----Mensaje original----- > De: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] nombre > de Carmona Perez, David > Enviado el: viernes, 14 de mayo de 2004 14:21 > Para: Itext-Questions (E-mail) > CC: Bartolome Pascual, Ismael > Asunto: [iText-questions] Background misaligned in tables > > > Hi, > > My problem is: > > I�m creating a table with Table / PdfTable in PDF. Every > line has a different background color. > > For each cell, I use the same font and it takes exactly one line. > Lines are output equally spaced and look ok, but the > background is missaligned and as we go downwards the page, > the background is progressivaly more above that the > corresponding line of text. > > Does anyone know the cause? > Has this happened to anybody else? > > Any help will be greatly appreciated. > > David > ************************************************************* > Este correo ha sido procesado por el antivirus del Grupo FCC. > ************************************************************* > > > ************************************************************* > Este correo ha sido procesado por el Antivirus del Grupo FCC. > ************************************************************* > > > ************************************************************* > Este correo ha sido procesado por el Antivirus del Grupo FCC > ************************************************************* > ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id%62&alloc_ida84&op=click _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions
