Measure Area

ERDAS IMAGINE Help

HGD_Variant
16.5.2
HGD_Product
ERDAS IMAGINE
HGD_Portfolio_Suite
Producer

Category: Measurement

measure_area_operator

Description

This operator computes the area for each polygon in the input Features.

The area of each applicable feature of the input Features is calculated and stored in a column of the output Features.

The value placed into each field will be the calculated value of the area in the horizontal units of the input Features CRS unless it is geographic in which case it will be in meters.

Connections

Name

Objects Supported

Description

Shown by Default

Required

Default Behavior or Behavior if not Required

FeaturesIn

IMAGINE.Features

Specify the features whose primary geometry field will be used to compute the area.

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AttributeName

IMAGINE.String

Specify the attribute name for the computed area in FeaturesOut. A new double-precision floating point field will be added if it does not yet exist. If it already exists and is either a single- or double-precision floating point type, it will be updated with the computed values; otherwise, the operation will fail.

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M_AREA

FeaturesOut

IMAGINE.Features

A new feature stream created by copying the input feature stream with the calculated area values stored in a new column of the attributes. The output units are in the square horizontal units of the CRS of the input Features unless the CRS is geographic in which case the output units is in meters squared.

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Example Model

Below is an example of how this operator can be used in a model intended to compute the area for input features.

measure_area_model