WPS1.0.0Department of Cartography, Geoinformatics and Remote SensingcenterLine:centerLineCenter LineExtract Center Line of a Polygonpolygonlabelprocess:PolyLabellerPolygon label processCalculate the Pole of accessibility, the most distant interior point in a polygon.skeltonize:centerLineSkeletonizeCreate the full skeleton line of a Polygonen-USen-US