Re: No Subject

Hi,

On Thu, 2005-09-08 at 05:00 +0000, chameli ghosh wrote:
>
> Dear Sir/Madam,
> I am chameli Ghosh , Student of MCA(Final Year). My
> Project is continue at VECC ,this is temperature monitoring system by
> using Root & C++ . I have two problem :
> 1. How to display the floating number on the graphical window,
> which is taken from any file ?

Put it in a canvas, for example in a TPave, or TLatex.

	void display_float(x) 
	{ 
		TCanvas* c = new TCanvas("c");
		TLatex*  l = new TLatex(.5,.5, Form("%f", x));
		l->Draw();
	}
	



>       2. How to Conver the string to float & float to string in

Use std::stringstream's

	std::string 
	float_to_string(const float x) 
        {
	  std::stringstream s;
	  s << x; 
	  return s.str();
        }

	float
	string_to_float(const std::string& s) 
	{ 
	  std::stringstream buf(s);
	  float x; 
	  buf >> x;
	  return x;
        }

Hope that helps.

Yours,

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