Routes features based on user-defined numeric value ranges.

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Typical Uses

  • Classifying features based on value ranges for symbolization or other further processing in the workspace
  • Filtering out features that fall within a specific range of values

How does it work?

The AttributeRangeFilter lets you define one or more numeric ranges, each of which becomes an output port. An attribute is selected to be compared against these ranges, and output via the first matching range’s port.

If the attribute value does not fall within any of the defined ranges, it is output via the <Unfiltered> port.

Ranges are inclusive. A value that could match more than one range will be output via the first one it encounters. Ranges are tested in the order they are defined in the parameters dialog, Range Lookup Table. For example, given the ranges 1 - 10 and 10 - 20, the value 10 will be matched to whichever of these ranges is listed first in the lookup table.

If either From or To is left blank, the range is open-ended; that is, it will match any value greater than (if To is blank) or less than (if From is blank) what is specified.

You may automatically generate fixed-interval ranges using the Generate… option.


Usage Notes

  • Only numeric ranges are supported.
  • Expressions are not supported.
  • To add an attribute classifying features according to numeric ranges (as opposed to routing/filtering them), consider using the AttributeRangeMapper.


Input Ports

Output Ports


Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.


Processing Behavior


Feature Holding


Dependencies None
Aliases RangeFilter

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Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.