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contourArea
contourArea(co)
contour line
the area within the contour line
area corresponding to closed contour line
# NOT RUN { data(mapTest) cL=list() cL=contourAuto(cL,mapTest$step,mapTest$xsize,mapTest$ysize,mapTest$krigGrid,c(5,7),mapTest$boundary) contourArea(cL[[8]]) # }
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