Abstract: contoursurfacescanbeg eneratedb ycontourlinetracin g.theallexistin g methodsareshortondetaildescri p tionintracin gstrate gy.to p olo gyanal y sisbetweendifferentislandsandthej ud gmentofcontoursurfacesarealsolackin g.afastcontoursurfaceg enerational g orithmisp ro p osedbasedoncontourlinetracin g.severalimp ortantdatastructuresandtracin gstrate g iesweredesi g nedforsolvin gman yp roblemsdurin gthecontourlinetracin g.particularl y,ke yp roblems,suchastheis-landp rocessin g,to p olo g icalanal y sis,andcontourfillin g,arethefocusofanal y sis.theresultsofourex p erimentsanda pp licationsshowthatthisal g orithmdeliversrobustp erformancewithhi g hefficien-c y.thep ro p osedal g orithmcanbea pp liedinmeteorolo gy，h y drolo gy，g eo g ra p h y,andotherfields.