steveroush

/********************************************************************
  gvEd.gvpr - edit Graphviz attributes

  gvEd.gvpr provides a partial macro-like capability to Graphviz
    - a pseudo attribute/macro can be defined and then referenced
      in the value component of later attribute references

  usage:
 
  gvpr -cf gvEd.gvpr 

steveroush

/**************************************************************
  gvInclude.gvpr
  - uses gvpr as a simple awk-like language, NOT as a Graphviz-parser
  - recognives "#include filename" instruction and inserts the contents of "filename"
  - #include files can be nested
  - #include files can be included multiple times
 
  usage: gvpr -aFmygvfile.gv

**************************************************************/

steveroush

illustrateDot - showing how dot (a Graphviz program) works

This shell script and gvpr program show the phases (steps) that dot performs,

The dot document https://www.graphviz.org/documentation/TSE93.pdf) (refers to passes. The dot program refers to Phases. (e.g. dot -Gphase=1 myfile.gv will terminate after completing phase 1)

steveroush

/***********************************************************************

this command: 
  f=dot_performance_world.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 3415.88
user 3414.92

steveroush

/***********************************************************************

this command: 
  f=dot_performance_view.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 94.91
user 94.73

steveroush

/***********************************************************************

this command: 
  f=dot_performance_veryWide0.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 26.27
user 25.79

steveroush

/***********************************************************************

this command: 
  f=dot_performance_usefulexample.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 0.08
user 0.07

steveroush

/***********************************************************************

this command: 
  f=dot_performance_universe.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 107.48
user 107.68

steveroush

/***********************************************************************

this command: 
  f=dot_performance_tests1172_1.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 45.93
user 46.91

steveroush

/***********************************************************************

this command: 
  f=dot_performance_shorterGraph1.gv
  F=${f%.*};
  time -p dot $f -Tsvg -v -Gnslimit=2 -Gmclimit=.22 -Gremincross=false -Gsearchsize=20 -Gsplines=false -o$F.svg

Produced these timings: 
real 3.87
user 4.00