StRoot: macros/graphics/StarFromWeb.C Source File

00001 //*-- Author :    Valery Fine   26/03/99  (E-mail: fine@bnl.gov)
00002 // $Id: StarFromWeb.C,v 1.6 2005/05/02 16:55:33 fine Exp $
00003 // $Log: StarFromWeb.C,v $
00004 // Revision 1.6  2005/05/02 16:55:33  fine
00005 // fix T=Star Geometry test
00006 //
00007 // Revision 1.5  2005/04/29 21:37:35  fine
00008 // fix the  table library test
00009 //
00010 // Revision 1.4  2000/04/07 17:07:08  fine
00011 // adjusted to the ROOT 2.24
00012 //
00013 // Revision 1.3  1999/05/21 15:33:53  kathy
00014 // made sure Log & Id are in each file and also put in standard comment line with name of owner
00015 //
00016 // Revision 1.2  1999/03/29 19:17:54  fine
00017 // x3d view has been activated. Some improvement as well
00018 //
00019 //=======================================================================
00020 // owner: Valery fine
00021 // what it does: Shows the various view of the STAR geometry
00022 //=======================================================================
00023 void StarFromWeb(const char *geomFile ="/afs/rhic.bnl.gov/star/users/fine/WWW/star_year_2a.root")
00024 {
00025  // To run this example one needs the access to Internet
00026  // To start this example launch ROOT as follows:
00027  //
00028  //*-*   root.exe StarFromWeb.C
00029  //
00030 
00031  //  Begin_Html <P ALIGN=CENTER> <IMG SRC="gif/WebStar.gif"> </P> End_Html // 
00032  
00033   cout << " Loading share library" << endl;
00034   Bool_t NT=kFALSE;
00035   if (strcmp(gSystem->GetName(),"WinNT") == 0 ) NT=kTRUE;
00036   if (NT) gSystem->Load("Table");
00037   else  gSystem->Load("libTable");
00038   if (!gGeometry) new TGeometry;
00039 
00040   // Create canvas
00041 
00042   cout << " Creating an empty TCanvas object to draw in" << endl;
00043   TCanvas &starCanvas = *(new TCanvas("STAR","Star",400,600));
00044   
00045   Int_t  PadColumns = 2;
00046   Int_t  PadRows = 2;
00047   starCanvas.Divide(PadColumns,PadRows);
00048 
00049   // Open remote Webfile
00050   cout << " Open the remote Web file with STAR geometry database in ROOT format" << endl;
00051   //  TWebFile f("http://www.rhic.bnl.gov/~fine/star_year_2a.root");
00052   TFile f(geomFile);
00053   // read STAR geometry database remotely
00054   cout << " Reading STAR geometry database (the full size of this database 28K bytes - ROOT-object" << endl;
00055   TDataSetIter volume(HALL);
00056   volume.Cd("HALL/CAVE");
00057 
00058   const Char_t *parts[] = {"TPCE"
00059                            ,"MAGP"
00060                            ,"CALB/RICH/SRIC"
00061                            ,"UPST" };
00062   const Int_t numParts = sizeof(parts)/sizeof(void *);
00063   cout << numParts << " different parts of the STAR detector will be built" << endl;
00064 
00065   for (Int_t i =0; i< numParts; i++) {
00066     const Char_t *part = parts[i];
00067     cout << "Drawing \"" << part << "\"" << endl;
00068     TVolume *vol = (TVolume *)volume(part);
00069     starCanvas.cd(i+1);
00070     if (vol) vol->Draw();
00071     else printf(" Volume \"%s\"  was not found\n", part);
00072     gPad->Update();
00073   }
00074   
00075   Int_t ThreeDPart = 2;
00076   cout << " Plot  3D view of the " << ThreeDPart << " part: " << parts[ThreeDPart-1]              << endl << 
00077           " Note: Under Windows NT OpenGL will be used by default instead x3d for UNIX"           << endl << 
00078           " ================================================================"   << endl <<   
00079           " Select x3d windows and type \"m\" in there to get x3d HELP windows" << endl <<
00080           " ================================================================"   << endl <<   
00081           " DON NOT FORGET to type \"q\" letter to terminate x3d widget and"    << endl <<   
00082           " to continue this session"                                           << endl <<
00083           " ================================================================"   << endl;
00084   starCanvas.cd(ThreeDPart);
00085   gPad->x3d();
00086 
00087   cout << "Drawing ROOT TBrowser" << endl;
00088   new TBrowser("STAR",HALL);
00089   cout << "Now. Try yourself:" << endl <<
00090   "     1. Select any STAR geometry TVolume object with  \"double-left-mouse click\" on the TVolumePosition" << endl <<
00091   "               TVolume object has no \";<n>\" in its name." << endl <<
00092   "               The objects with trail  \";<n>\" are TVolumePosition ones" << endl <<
00093   "     2. Pop the context menu up with \"right-mouse click\" on the ROOT browser" << endl <<
00094   "     3. Select \"Draw\" position" << endl <<
00095   "     4. Click OK" << endl;
00096   cout << " Get this macro form $(STAR)/StRoot/macro/StarFromWeb.C and customize it for fun" << endl;
00097 
00098 
00099 
00100 }