boundary
boundary(geom; gdataset=false)
Parameters
geom: the geometry. This can either be a GDAL AbstractGeometry or a GMTdataset (or vector of it), or a Matrixgdataset: Returns a GDAL IGeometry even when input are GMTdataset or Matrix
A new geometry object is created and returned containing the boundary of the geometry on which the method is invoked.
Returns
A GMT dataset when input is a Matrix or a GMT type (except if gdaset=true), or a GDAL IGeometry otherwise