Calculates some characteristics of the polylines from a polyline dataset
Inputs:
A Polyline layer
Outputs:
A new Polyline dataset
All original attributes are preserved.
New fields added to the attribute table
ET_Sinous - the sinuosity of the polyline calculated as ratio of
the length of the polyline and the length of the line connecting the start
and end points of the polyline. The value ranges from 1 (case of straight
line) to infinity (case of a closed polyline). In case of infinity a 0 is
recorded in the attribute table. See illustration below.
ET_Vert - the number of vertices of the polyline
ET_Dir - the general direction of the polyline - the direction in
decimal degrees measured in North Azimuth of
the line connecting the start and end points of the polyline (see
illustration below).
ET_Parts - the number of parts that the polyline has
ET_HasArcs - if the polyline has true arc segments - 1 otherwise - 0
ET_Closed - - if the polyline is closed - 1 otherwise - 0
ET_Fract - the fractal dimension (indication of the complexity) of
the polyline. The value is between 1 and 2. The more complex the
polylineis the larger the fractal dimension will be.
Notes:
Fractal Dimension of the polylines is calculated using the Box Counting method (1)
Calculating the Fractal Dimension is time consuming. If you don't need this characteristic,
uncheck the option for faster processing.
of
the line connecting the start and end points of the polyline (see
illustration below).