This readme file illustrates how to run the executable jar file surfSW.jar,
for the exhaustive generation of all distinct Schnyder woods of a tiny triangulation (genus >=1)

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To perform the exhaustive generation of all distinct Schnyder woods of higher genus triangulations,
execute the java program SurfSW.jar

At least two arguments are required to run the tests:
	argument 1: an input file storing a list of higher genus triangulations (encoded in surftri format)
	argument 2 or 3: option

Supported options are listed below
	-slow      	 run the computation in SLOW (brute-force) mode
	-check     	 check the combinatorial validity of input triangulations
	-countSW   	 generate all 3-orientations and count the number of valid Schnyder woods (g>=1)
	-findSW    	 compute and output a valid Schnyder wood (g>=1)
	-countCCSW 	 (only for g=1, SLOW mode) count the number of crossing and connected Schnyder woods [very slow for n>10]
	-findCCSW  	 (only for g=1, SLOW mode) compute and output a crossing and connected Schnyder woods [very slow for n>10]

Usage examples:
 	 java -jar SurfSW.jar g1_9.txt -check
 	 java -jar SurfSW.jar genus2_10.alpha -countSW
 	 java -jar SurfSW.jar genus2_11.alpha -findSW
 	 java -jar SurfSW.jar genus1_irreducible.txt -countCCSW -slow
 	 java -jar SurfSW.jar genus1_irreducible.txt -findCCSW -slow


Input format: 
triangulations must be provided in 'surftri' format: only triangle meshes of genus 1 without boundaries (closed manifold) are accepted

Remarks: 

-) the executable SurfSW.jar file above has been compiled with Java 1.8

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