Setting the Axis for Atmospheric Volume Grid
axis_type.code_type = SE_ELEM_CODE_TYP_ATTRIBUTE
axis_type.code.attribute =
EAC_SPATIAL_ANGULAR_PRIMARY_COORDINATE
value_unit = EUC_DEGREE_ARC
interpolation_type = SE_INTERPOLATION_TYP_NOT_SUPPLIED
first_value.value_type = SE_PDV_FLOAT
first_value.u.float_value = 0.
spacing.value_type = SE_PDV_FLOAT
spacing.u.float_value = .20
type_of_spacing = SE_SPACING_TYP_ARITHMETIC
axis_alignment = SE_AXIS_ALNMNT_LOWER
From parent Property Grid
Axes classes are ordered with the spatial axes coming first. The parent Property Grid had spatial_axes_count =2, therefore the regular axes are the spatial axes as they are the first two axes.
Note that this is really an array of a structure of type SE_Property_Data_Value