| Name | Description |
 | Alias | The alias for this tool's toolbox. |
 | base_contour | Along with the index interval, the base height is used to determine what contours are produced. The base height is a starting point from which the index interval is either added or subtracted. By default, the base contour is 0.0. (In, Optional) |
 | contour_field | The field containing contour values. (In, Optional) |
 | contour_field_precision | The precision of the contour field. Zero specifies an integer, and the numbers 1–9 indicate how many decimal places the field will contain. By default, the field will be an integer (0). (In, Optional) |
 | in_surface | The input terrain dataset or TIN surface. (In, Required) |
 | index_interval | The difference, in Z units, between index contours. The value specified should be evenly divisible by the contour interval. Typically, it’s five times greater. Use of this parameter adds an attribute field to the output feature class that’s used to differentiate index contours from regular contours. (In, Optional) |
 | index_interval_field | The name of the field used to record whether a contour is a regular or an index contour. By default, the value is ‘Index’. (In, Optional) |
 | interval | The interval between the contours. (In, Required) |
 | out_feature_class | The output feature class. (Out, Required) |
 | ParameterInfo | The parameters used by this tool. For internal use only. |
 | pyramid_level_resolution | The pyramid level resolution of the terrain dataset to use for interpolation. The default is 0, full resolution. (In, Optional) |
 | ToolboxDirectory | The directory of this tool's toolbox. |
 | ToolboxName | The name of this tool's toolbox. |
 | ToolName | The name of this tool. |
 | z_factor | Specifies a factor by which to multiply the surface heights. Used to convert z units to x and y units. The Z factor parameter only affects results for rasters and TINs, not terrain datasets. (In, Optional) |