Eliminate Unwanted Areas

ERDAS IMAGINE Help

HGD_Variant
16.5
HGD_Product
ERDAS IMAGINE
HGD_Portfolio_Suite
Producer

Category: Geometry Manipulation

Default

Show All Ports

Eliminate_Unwanted_Areas_all_ports

Description

This operator removes holes and/or Islands from geometry collection in a feature by the specified thresholds. The main/largest area (not considering holes within it) will always be kept regardless of the thresholds.

Eliminate_Unwanted_Areas_illustration

Limitations

The operator works only on AreaGeometry. An error is generated otherwise.

Connections

Name

Objects Supported

Description

Shown by Default

Required

Default Behavior or Behavior if not Required

FeaturesIn

IMAGINE.Features

Input features whose primary geometry will be used to remove holes or islands.

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MinimumAreaThreshold

IMAGINE.Double

Area threshold in square meters, islands or holes smaller than this threshold to be removed.

If both MinimumAreaThreshold and MaximumAreaThreshold are not provided, the operator will remove all islands or holes. But the main area will be kept.

MaximumAreaThreshold

IMAGINE.Double

Area threshold in square meters. Islands or holes larger than this threshold will be removed.

If both MinimumAreaThreshold and MaximumAreaThreshold are not provided, the operator will remove all islands or holes. But the main area will be kept.

RemoveIslands

IMAGINE.Boolean

Flag to remove islands.

False

FillHoles

IMAGINE.Boolean

Flag to fill holes.

True

FeaturesOut

IMAGINE.Features

Output features containing the new geometry with holes or islands removed along with the original geometry from the input.

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