- class ESMF.api.constants.LineType(value, names=None, module=None, type=None, start=1)¶
This argument controls the path of the line which connects two points on the surface of the sphere. This in turn controls the path along which distances are calculated and the shape of the edges that make up a cell. Both of these quantities can influence how interpolation weights are calculated. As would be expected, this argument is only applicable with grids which lie on the surface of a sphere.
- CART = <LineType.CART: 0>¶
Cartesian line. When this option is specified distances are calculated in a straight line through the 3D Cartesian space in which the sphere is embedded. Cells are approximated by 3D planes bounded by 3D Cartesian lines between their corner vertices. When calculating regrid weights, this line type is currently the default for the following all regrid methods except for conservative.
- GREAT_CIRCLE = <LineType.GREAT_CIRCLE: 1>¶
Great circle line. When this option is specified distances are calculated along a great circle path (the shortest distance between two points on a sphere surface). Cells are bounded by great circle paths between their corner vertices. When calculating regrid weights, this line type is currently the default for the conservative regrid method.