IBM Visualization Data Explorer User's Reference

Reduce

Category

Import and Export

Function

Computes a reduced-resolution version (or group of versions) of a field.

Syntax

reduced = Reduce(input, factor);

Inputs

Name	Type	Default	Description
input	field	none	field to be reduced
factor	scalar list or vector list	2	reduction factor(s)

Outputs

Name	Type	Description
reduced	field or group	set of reduced-resolution data

Functional Details

Reduces the resolution of regularly connected grids. Box filtering is applied to minimize aliasing effects in the components that are associated with the grid. It filters and reduces the number of items in the "data" component of the input field and also in any components that are position or connection dependent.

input	is the field to be reduced. It must have regular connections.
factor	specifies the reduction factor(s) to be used in reducing the resolution of the field.

If this parameter specifies:

• a single scalar value: the output is reduced by that factor in all dimensions.
• a vector: each vector element is applied to the corresponding dimension.
• a list of scalars or vectors: the output is a group of fields, each with the corresponding factor applied.

Components

All components in the input are propagated to the output. Components dependent on "positions" or "connections" are filtered.

Example Visual Programs

GeneralImport2.net

ManipulateGroups.net

VolumeRendering.net
SIMPLE/Reduce.net

See Also

 Refine,  Select,  Display

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