Re: Red lines

From: lijowski@cosray2.wustl.edu
Date: Wed May 12 1999 - 17:08:21 MEST 

   Rene,

   Below is a macro. This lines are very faint and rather pink than red.
   It is hard to see them. To see them you would have to zoom in ghostview.
   I asked my coworkers for the second opinion and also magnifying lens.
   
   These shadowy lines appear best after inserting eps files into a latex
   paper and viewing them with ghostview. I have a 4 page paper and all eps
   figure seem to show this strange behaviour. I am not quite sure how well 
   you can reproduce this problem with the attached macro.

   Michal Lijowski
   
{
//   gROOT -> Reset();
   gROOT -> SetStyle("Plain");
   gStyle -> SetOptStat(0);
   gStyle -> SetCanvasBorderMode(0);

   TCanvas *cc1 = new TCanvas("cc1", "My Canvas", 600, 300);
   gStyle -> SetTitleX(0.22);
   gStyle -> SetTitleY(0.97);
   gStyle -> SetLabelOffset(0.001, "X");

   gPad -> SetBottomMargin(0.15);
   gPad -> SetLeftMargin(0.15);
   gPad -> SetTicks();
//   gPad -> SetLogx();
//   gPad -> SetLogy();

// define plot ranges with histogram class

  Float_t  xxmin =   50.0;
  Float_t  xxmax = 1000.0;
  Float_t  yymin = 1.0E-9;
  Float_t  yymax = 2.0E-6;

  TH2F *h2r = new TH2F("h2r", "Axis test", 2, xxmin, xxmax, 2, yymin, yymax);
  printf(" NDiv %d\n", h2r -> GetXaxis() -> GetNdivisions());
  printf(" NBinsX %d\n", h2r -> GetNbinsX());
//  h2r -> GetXaxis() -> SetNdivisions(-101);
  printf(" NDiv %d\n", h2r -> GetXaxis() -> GetNdivisions());
  Float_t ticksize = h2r -> GetTickLength("X");
  printf("  TickLength  %f\n", ticksize);
  h2r -> SetTickLength(0.01, "X");
  h2r -> Draw();
  printf(" Label offset  %9.3E\n", gStyle -> GetLabelOffset("X"));
  cc1 -> Update();
  cc1 -> SaveAs("test_axis.eps");
}

> From Rene.Brun@cern.ch Wed May 12 07:57:34 1999
> Delivered-To: lijowski@cosray2.wustl.edu
> Date: Wed, 12 May 1999 08:04:05 +0000
> From: Rene Brun <Rene.Brun@cern.ch>
> MIME-Version: 1.0
> To: lijowski@cosray2.wustl.edu
> CC: roottalk@hpsalo.cern.ch
> Subject: Re: Red lines
> Content-Transfer-Encoding: 7bit
> 
> lijowski@cosray2.wustl.edu wrote:
> > 
> >    Hello,
> > 
> >    Is it any consistent way to remove a red lines along left and top
> >    axis of the histograms in EPS files?
> > 
> Hi Michal,
> This problem was reported by Scott Wakely and fixed in version 2.21/08.
> Could you report an example of macro showing this problem?
> 
> >    Setting gStyle -> SetCanvasBorderMode(0) suggested by Marco van Leeuwen
> >    does not work in my version of ROOT 2.21/08.
> > 
> 
> same as above
> 
> Rene Brun
>

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