SNAP Library 2.0, User Reference  2013-05-13 16:33:57
SNAP, a general purpose, high performance system for analysis and manipulation of large networks
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gviz.cpp
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00001 
00002 // GraphViz
00003 namespace TSnap {
00004 namespace TSnapDetail {
00005 void GVizDoLayout(const TStr& GraphInFNm, TStr OutFNm, const TGVizLayout& Layout) {
00006   TStr LayoutExe = TSnap::TSnapDetail::GVizGetLayoutStr(Layout), Ext = OutFNm.GetFExt(), GvPath;
00007   #if defined(GLib_WIN)
00008     GvPath = "C:\\Prog\\GraphViz\\bin\\";
00009   #else
00010     GvPath = "/usr/bin/";
00011     //OutFNm = OutFNm.GetFMid() + Ext;
00012   #endif
00013   IAssert(Ext==".ps" || Ext==".gif" || Ext==".png");
00014   const TStr ExeCmd = TStr::Fmt("%s -T%s %s -o %s", LayoutExe.CStr(),
00015     Ext.CStr()+1, GraphInFNm.CStr(), OutFNm.CStr());
00016 
00017   if (system(ExeCmd.CStr())==0) { return; }
00018   #if defined(GLib_WIN)
00019   if (system(TStr::Fmt(".\\%s", ExeCmd.CStr()).CStr())==0) { return; }
00020   #else
00021   if (system(TStr::Fmt("./%s", ExeCmd.CStr()).CStr())==0) { return; }
00022   #endif
00023   if (system(TStr::Fmt("%s%s", GvPath.CStr(), ExeCmd.CStr()).CStr())==0) { return; }
00024   fprintf(stderr, "[%s:%d] Cannot find GraphViz (%s). Set the PATH.\n", __FILE__, __LINE__, ExeCmd.CStr());
00025   //#if defined(GLib_WIN)
00026   //if (ShowPlot) system(TStr::Fmt("start %s", OutFNm.CStr()).CStr());
00027   //#endif
00028 }
00029 
00030 TStr GVizGetLayoutStr(const TGVizLayout& Layout) {
00031   switch(Layout) {
00032     case gvlDot : return "dot";
00033     case gvlNeato : return "neato";
00034     case gvlTwopi : return "twopi";
00035     case gvlCirco: return "circo";
00036     default: Fail;
00037   }
00038   return TStr::GetNullStr();
00039 }
00040 
00041 } // namespace TSnapDetail
00042 } // namespace TSnap
00043