Smooth Polylines

 

 

Purpose

 

The tool is aimed to smoothing polyline features.

 

Description

 

The tool provides ArcGIS users with capabilities to smooth polyline features. There are two smoothing algorithms provided:

• Bezier splines

• B-splines

 

Usage

 

1. Select the "Smooth Polylines" tool from the XTools Pro Feature Conversions menu.

2. Select the input layer containing polylines that you wish to smooth.

3. Specify the name and location of the output feature class.

4. Select the required smoothing algorithm (either Bezier or B-splines).

5. Select how possible topological errors should be handled.

6. Specify ID field to store input features IDs.

7. Press Run to smooth polylines.

 

 

 

There are two algorithms provided for smoothing polylines:

 

• Bezier splines

- Polylines will be smoothed by creating Bezier curves to match the input polylines. If the output is a shapefile, the Bezier curves will be approximated, since true Bezier curves cannot be stored in shapefiles.

• B-splines

- Polylines will be smoothed with the spline function taking into account level of detail for the smoothed polylines (i.e. density of vertices in the smoothed segments).

 Default value for the Level of detail is 100% which is applicable in most cases, valid values vary from 50% to 500%.

 

Following options are provided for handling possible topological errors in the output feature class:

• No check

- output polylines won't be checked for topological errors.

• Flag errors

- output polylines will be checked and found topological errors will be flagged in a new field.

 

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