RE: problem with Marker size

Hi, thank you for your time. Graphics zoom as expected, I perfectly agree, but this is not what I need to represent my interaction networks. Somehow, what I need is to circumvent the following statement of the manual (p. 138):
The size of the PostScript picture, by default, is computed to keep the aspect ratio of the picture on the screen, where the size along x is always 20 cm.
Can I fix the size along y to a fixed value for eps? For Postscript yes, using Range, but with eps?
Thank you,

Giovanni

On Mon, 16 Nov 2009, Olivier Couet wrote:

> Hi,
>
> I tried again your new examples. I zoomed the file prova1.eps using gv.
> All the graphics is zooming as expected.
>
> Cheers, O.Couet
>
> -----Original Message-----
> From: Feverati.Giovanni [mailto:feverati_at_lapp.in2p3.fr]
> Sent: Saturday, November 14, 2009 9:43 PM
> To: Rene Brun
> Cc: Olivier Couet; roottalk_at_root.cern.ch
> Subject: Re: [ROOT] problem with Marker size
>
>
> Hi,
> I'm using root 5.24, evince 2.26.1, xpdf 3.02. I have the same problem
> in eps or pdf. To better explain you, I have added some text to my
> images:
> try to visualize the eps or pdf such that the text appears at the same
> size and the markers will not!
>
> Giovanni
>
>
> Here is the new file
>
> using namespace std;
>
> TCanvas *canapa = new TCanvas("prova","prova",0,0,200,100);
> canapa->Range(0,0,11,15);
> // new point (positionX, positionY, form "X")
> TMarker *m1 = new TMarker(1,2,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TMarker *m1 = new TMarker(1,10,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TMarker *m1 = new TMarker(10,10,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TLine *l1 = new TLine( 1,2,1,10);
> l1->SetLineWidth(2);
> l1->Draw();
> TText indice(2,5,"a");
> indice.SetTextFont(43);
> indice.SetTextSize(9);
> indice.DrawText(2,5,"<-- This line must be vertical");
>
> canapa->Print("prova.eps");
> canapa->Print("prova.pdf");
>
>
> TCanvas *canapa1 = new TCanvas("prova1","prova1",0,0,400,100);
> canapa1->Range(0,0,11,15);
> TMarker *m1 = new TMarker(1,2,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TMarker *m1 = new TMarker(1,10,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TMarker *m1 = new TMarker(10,10,5);
> m1->SetMarkerSize(1.);
> m1->Draw();
> TLine *l2 = new TLine( 1,2,1,10);
> l2->SetLineWidth(2);
> l2->Draw();
> TText indice(2,5,"a");
> indice.SetTextFont(43);
> indice.SetTextSize(9);
> indice.DrawText(2,5,"<-- This line must be vertical");
>
> canapa1->Print("prova1.eps");
> canapa1->Print("prova1.pdf");
>
>
>
>
>
>
>
>
>
> On Sat, 14 Nov 2009, Rene Brun wrote:
>
>> As already reported by Olivier, we cannot reproduce your problem.
>> Which version of ROOT are you using? which ps, eps viewers?
>>
>> Rene
>>
>> Feverati.Giovanni wrote:
>>>
>>> Hi.
>>>
>>> If you zoom the eps such that the two images prova.eps and prova1.eps
>>> have the same vertical size you should see that the markers have now
> two
>>> different sizes. But notice: in the root panels you obtain two images
> with
>>> precisely the same vertical size and the same markers. This is my
> problem:
>>> I need eps images with the same vertical size and the same size of
> the
>>> markers;
>>> I can get them on the root panel but not after printing to eps.
>>>
>>> Giovanni Feverati
>>>
>>>
>>>
>>> On Fri, 13 Nov 2009, Olivier Couet wrote:
>>>
>>>> Hi,
>>>>
>>>> I ran you macros. I do not understand what you mean by:
>>>>
>>>> "the size of the Marker is adapted to the horizontal length of the
> eps
>>>> image" ?
>>>>
>>>> I get the same marker size on screen and in the eps.
>>>>
>>>> O.Couet
>>>>
>>>> -----Original Message-----
>>>> From: owner-roottalk_at_root.cern.ch
> [mailto:owner-roottalk_at_root.cern.ch]
>>>> On Behalf Of Feverati.Giovanni
>>>> Sent: Friday, November 13, 2009 5:23 PM
>>>> To: roottalk_at_root.cern.ch
>>>> Subject: [ROOT] problem with Marker size
>>>>
>>>>
>>>> Hi
>>>>
>>>> I'm using TMarker to produce a symbol like x and I fix its size by
>>>> SetMarkerSize(1.); the problem arises when saving with
>>>> Print("file.eps"):
>>>> the size of the Marker is adapted to the horizontal length of the
> eps
>>>> image.
>>>> This effect is not apparent on the screen, it appears after
> printing.
>>>> Can I have a fixed size, on both the screen and the eps?
>>>> Giovanni
>>>>
>>>>
>>>> The code is the following.
>>>>
>>>>
>>>>
>>>> using namespace std;
>>>> TCanvas *canapa = new TCanvas("prova","prova",0,0,200,100);
>>>> canapa->Range(0,0,11,15);
>>>> TMarker *m1 = new TMarker(1,1,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> TMarker *m1 = new TMarker(1,10,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> TMarker *m1 = new TMarker(10,10,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> canapa->Print("prova.eps");
>>>>
>>>>
>>>> TCanvas *canapa1 = new TCanvas("prova1","prova1",0,0,400,100);
>>>> canapa1->Range(0,0,11,15);
>>>> TMarker *m1 = new TMarker(1,1,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> TMarker *m1 = new TMarker(1,10,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> TMarker *m1 = new TMarker(10,10,5);
>>>> m1->SetMarkerSize(1.);
>>>> m1->Draw();
>>>> canapa1->Print("prova1.eps");
>>>>
>>>>
>>>>
>>>
>>
>>
>
Received on Tue Nov 17 2009 - 21:26:56 CET