StRoot: macros/graphics/AtlasFromWeb.C Source File

00001 //*-- Author :    Valery Fine   26/03/99  (E-mail: fine@bnl.gov)
00002 // $Id: AtlasFromWeb.C,v 1.2 2000/04/07 17:07:08 fine Exp $
00003 // $Log: AtlasFromWeb.C,v $
00004 // Revision 1.2  2000/04/07 17:07:08  fine
00005 // adjusted to the ROOT 2.24
00006 //
00007 // Revision 1.1  1999/10/11 21:46:40  fine
00008 // Macro to draw the ATLAS detector geometry
00009 //
00010 // Revision 1.2  1999/03/29 19:17:54  fine
00011 // x3d view has been activated. Some improvement as well
00012 //
00013 {
00014  // To run this example one needs the access to Internet
00015  // To start this example launch ROOT as follows:
00016  //
00017  //*-*   root.exe StarFromWeb.C
00018  //
00019 
00020  //  Begin_Html <P ALIGN=CENTER> <IMG SRC="gif/WebStar.gif"> </P> End_Html // 
00021  
00022   gROOT->Reset();
00023   cout << " Loading share library" << endl;
00024   gROOT->Reset();
00025   printf( " Loading share library\n");
00026   gSystem->Load("libSTAR");
00027   if (!gGeometry) new TGeometry;
00028 
00029   // Create canvas
00030 
00031   cout << " Creating an empty TCanvas object to draw in" << endl;
00032   TCanvas starCanvas("STAR","Star",400,600);
00033   Int_t  PadColumns = 2;
00034   Int_t  PadRows = 2;
00035   starCanvas.Divide(PadColumns,PadRows);
00036 
00037   // Open remote Webfile
00038   cout << " Open the remote Web file with STAR geometry database in ROOT format" << endl;
00039   //  TWebFile f("http://www.star.bnl.gov/~fine/atlas.root");
00040   TFile f("~fine/WWW/atlas.root");
00041   // read STAR geometry database remotely
00042   cout << " Reading STAR geometry database (the full size of this database 3Mb bytes - ROOT-object" << endl;
00043   TDataSetIter volume(HALL);
00044   volume.Cd("ATLS");
00045 
00046   const Char_t *parts[] = {"INNE"
00047                            ,"PIPE"
00048                            ,"OUTE" 
00049                            ,"CENT"
00050                           };
00051   const Int_t numParts = sizeof(parts)/sizeof(void *);
00052   cout << numParts << " different parts of the ATALS detector will be built" << endl;
00053 
00054   for (Int_t i =0; i< numParts; i++) {
00055     const Char_t *part = parts[i];
00056     cout << "Drawing \"" << part << "\"" << endl;
00057     TVolume *vol = volume(part);
00058     starCanvas.cd(i+1);
00059     if (vol) vol->Draw();
00060     gPad->Update();
00061   }
00062   
00063   Int_t ThreeDPart = 2;
00064   cout << " Plot  3D view of the " << ThreeDPart << " part: " << parts[ThreeDPart-1]              << endl << 
00065           " Note: Under Windows NT OpenGL will be used by default instead x3d for UNIX"           << endl << 
00066           " ================================================================"   << endl <<   
00067           " Select x3d windows and type \"m\" in there to get x3d HELP windows" << endl <<
00068           " ================================================================"   << endl <<   
00069           " DON NOT FORGET to type \"q\" letter to terminate x3d widget and"    << endl <<   
00070           " to continue this session"                                           << endl <<
00071           " ================================================================"   << endl;
00072   starCanvas.cd(ThreeDPart);
00073   gPad->x3d();
00074 
00075   cout << "Drawing ROOT TBrowser" << endl;
00076   TBrowser b("STAR",HALL);
00077   cout << "Now. Try yourself:" << endl <<
00078   "     1. Select any STAR geometry TVolume object with  \"double-left-mouse click\" on the TVolumePosition" << endl <<
00079   "               TVolume object has no \";<n>\" in its name." << endl <<
00080   "               The objects with trail  \";<n>\" are TVolumePosition ones" << endl <<
00081   "     2. Pop the context menu up with \"right-mouse click\" on the ROOT browser" << endl <<
00082   "     3. Select \"Draw\" position" << endl <<
00083   "     4. Click OK" << endl;
00084   cout << " Get this macro form $(STAR)/StRoot/macro/StarFromWeb.C and customize it for fun" << endl;
00085 }