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MapTextLabeller

Note: The MapTextLabeller transformer is available as an extra-cost package from Safe Software. Please contact sales@safe.com or call 604-501-9985.

Creates text labels for features using the MapText Label Manager.

Input Ports

The input ports are dynamically generated via the Rule Configurations parameter.

Output Ports

The output ports are dynamically generated via the Rule Configurations parameter.

For each configured layer with name <layername>, two ports called <layername>_TXT and <layername>_UNL will be created.

The text labels will be output through the <layername>_TXT port.

Features for which a label could not be placed will be output through the <layername>_UNL port. An attribute named _ez_unlabeled_reason will be added to the feature. Possible values for this attribute are Suppressed, Excluded and Unplaced.

Parameters

Usage Notes

The following steps are typically used when specifying the Rule Configurations parameter:

  1. Use the Import button to choose which layers and attributes are to be labelled.
  2. Click the Configure button to bring up the Label Manager dialog.
  3. For each layer to be labelled, select the geometry type (i.e. Point, Line, Polygon) of the feature from the Feat Type column. If the geometry type remains unselected, this layer can continue to be used as an obstacle.
  4. Click the Style button to specify what text should be displayed for the selected layer.
  5. Ensure that the Label checkbox is selected.
  6. Select the Obstacle checkbox if labels should not overlap features in the selected layer.
  7. Click the Rule button to customize the rules used to determine how the labels are placed.

For more information on label configuration, see the Label Manager documentation provided by MapText, Inc. Note that some Label Manager features, such as shared rules, are not supported by the MapTextLabeller.

The MapTextStyler can be used with this transformer to specify no-label zones around features.

The MapTextLabeller automatically deaggregates features and attempts to label the individual pieces if they meet the labelling criteria. For more control over how labelling of aggregates is done, it is recommended that aggregates are split apart and possibly recombined prior to the MapTextLabeller, using transformers such as the Deaggregator and AreaAmalgamator.

Note: The MapTextLabeller requires the Microsoft .NET Framework 3.5 to be installed.

Some of the target formats have the following specific issues:

Note: Powered by Maptext, Inc., Copyright © 2011, MapText, Inc. All Rights Reserved.

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.

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