Bounds.contiguous(overlap=True, direction=None, period=None, verbose=1)[source]

Return True if the bounds are contiguous.

Bounds are contiguous if the cell boundaries match up, or overlap, with the boundaries of adjacent cells.

In general, it is only possible for 1 or 0 variable dimensional variables with bounds to be contiguous, but size 1 variables with any number of dimensions are always contiguous.

An exception is raised if the variable is multidimensional and has more than one element.

New in version 2.0.

overlap: bool, optional

If False then 1-d cells with two bounds vertices are not considered contiguous if any adjacent cells overlap each other. By default such cells are considered contiguous.


Specify the direction of 1-d coordinates with two bounds vertices. Either True for increasing coordinates, or False for decreasing coordinates. By default the direction is inferred from whether the first bound of the first cell is less than its second bound (direction is True), or not (direction is False).

period: optional

Define the period of cyclic values so that the test for contiguousness can be carried out with modulo arithmetic. By default the data are assumed to be non-cyclic, unless the bounds have units of longitude (or have units of 'degrees'), in which case a period of 360 degrees is assumed.

verbose: int or str or None, optional

If an integer from -1 to 3, or an equivalent string equal ignoring case to one of:

  • 'DISABLE' (0)

  • 'WARNING' (1)

  • 'INFO' (2)

  • 'DETAIL' (3)

  • 'DEBUG' (-1)

set for the duration of the method call only as the minimum cut-off for the verboseness level of displayed output (log) messages, regardless of the globally-configured cf.log_level. Note that increasing numerical value corresponds to increasing verbosity, with the exception of -1 as a special case of maximal and extreme verbosity.

Otherwise, if None (the default value), output messages will be shown according to the value of the cf.log_level setting.

Overall, the higher a non-negative integer or equivalent string that is set (up to a maximum of 3/'DETAIL') for increasing verbosity, the more description that is printed to convey information about the test for contiguity.


Whether or not the cells are contiguous.