Mac

ROOT
1

Dear all
ROOT I use a Mac OX 10.4, I have tried to create a source using libraries, for example:

#include “stdio.h”
#include “TH1F.h”
#include "TCanvas.h"
int main()
{

TCanvas *myc = new TCanvas(“myc”, “Prova”, 800, 600);
myc->SetFillColor(45);
TPad *c1_1 = new TPad(“c1_1”, “c1_1”,0.01,0.51,0.49,0.99);
TPad *c1_2 = new TPad(“c1_2”, “c1_2”,0.51,0.51,0.99,0.99);
TPad *c1_3 = new TPad(“c1_3”, “c1_3”,0.01,0.01,0.49,0.49);
TPad *c1_4 = new TPad(“c1_4”, “c1_4”,0.51,0.01,0.99,0.49);
c1_1->Draw();
c1_2->Draw();
c1_3->Draw();
c1_4->Draw();
}

Using the appropriate compiler options new a.out but when the launch does not create the canvas.

Thanks

2

Hi,

rename your function to e.g. prova() (instead of main()), save your source into prova.C, start ROOT, and simply do:
root [0] .x prova.C+
No need to compile or link anything (or fix the issue with missing graphics) - ROOT will take care of it.

Cheers, Axel.

3

Hi

Thank for your answer, I want to use a source not a macro root.
Can be done?

Thank all

4

Hi,

prova.C is a source file. “Macro” is just a misleading word - prova.C+ will invoke your compiler and linker and generate a shared library. There is NO difference in performance nor code validity checks to what you are trying to do.

If you really do need a stand-alone binary: could you tell us your use case? You will need a TApplication object and you will need to keep your program running, or all windows will vanish before they show up (see TVirtualPad::WaitPrimitive()). But again: don’t do it. Use the “+”.

Axel.

5

Thank you for answer

Andrea