**Calculate Length**

This function is not available via the GUI of ET GeoWizards.

Calculates the length of polylines or the perimeter of polygons. Please see the explanations below

**Command line syntax **

ET_GPCalculateLength <input_dataset> {calc_spatial_reference} { | Meters | Kilometers | Feet | Miles | Yards | Inches | Centimeters | Millimeters} {Length_field}

**Parameters**

Expression |
Explanation |
---|---|

<input_dataset> | A Polyline or Polygon feature class or feature layer. |

{calc_spatial_reference} | The
spatial reference in which the calculations will be performed. If not
specified the spatial reference of the input dataset will be used. NOTE: The spatial reference of the input dataset and the Calculations spatial reference must have the same Geographic Coordinate System |

{ | Meters | Kilometers | Feet | Miles | Yards | Inches | Centimeters | Millimeters} | Output
Units. A String that defines the units in which the length will be
calculated. NOTE: If the the Calculations spatial reference is a Geographic Coordinate System, this parameter will be ignored and the results will be calculated in decimal degrees!!! |

{Length_field} | Length Field. A String indicating an existing field in which the results for the length will be stored. If not specified a new field "ET_Length" will be created |

**Scripting syntax**

ET_GPCalculateLength (input_dataset, calc_spatial_reference, output_units, Length_field)

See the explanations above:

<> - required parameter

{} - optional parameter

CalculateLength(pInFC As IFeatureClass, Optional pSpatialReference As ISpatialReference = Nothing, Optional sDistanceUnits As String = "", Optional sLengthField As String = "") As Boolean

Copyright © Ianko Tchoukanski |