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PolylineZ Characteristics Wizard

Calculates several characteristics of PolylineZs. The results are stored in fields in the polyline attribute table.
The results are stored in the attribute table of the input layer or in a new feature class

Inputs:

• A PolylineZ feature layer
• Linear precision - the number of digits after the decimal point for linear measures
• Angular precision - the number of digits after the decimal point for angular measures
• NODATA value - a number that represents undefined Z values. If the Z values of a geometry are interpolated from a surface and some of the vertices of the geometry are outside of the extent of the surface, they will not have Z values. Since ArcGIS does not accept NaN (Not a Number) values in Z enabled shapes, a numeric value is assigned to these vertices. If the Features To 3D function of ET GeoWizards is used to derive the Z values, the NODATA value is 999999.  When calculating Z characteristics this values need to be ignored. Segments that have a vertex with NODATA Z value will be ignored in the calculations.

Outputs:

The results are stored in the attribute table of the input dataset or in a new feature class. The linear measures are in the units of the spatial reference of the input dataset. The slope is measured in decimal degrees (from -90 to +90). The following fields are added to the attribute table

• [3D_Length] - the true 3D length of the polyline
• [2D_Length] - the 2D length of the polyline
• [Max_Z] - Maximum Z value
• [Min_Z] - Minimum Z value
• [Len_Up]  - distance uphill
• [Len_Down] - distance downhill
• [H_Up] - total increase in height
• [H_Down] - total decrease in height
• [Av_S_Up] - average slope uphill
• [Max_S_Up] - maximum slope uphill
• [Av_S_Down] - average slope downhill
• [Max_S_Down] -maximum slope downhill