If no files are given, pswiggle will read standard input. Selects the map projection. More details can be found in the psbasemap manpages. No space between the option flag and the associated arguments. Sets the preferred positive direction.
Sets map boundary tickmark intervals.
See psbasemap for details. Set fill of positive wiggles. Number of header records can be changed by editing your .gmtdefaults file. If used, GMT default is 1 header record. Segments are separated by a record whose first character is flag .