LabelingInfo

An object that defines the text, appearance and position of labels for features for a given scale range. A LabelingInfo describes a class of labels.

Each LabelingInfo specifies:

LabelingInfo describes a very limited subset of the LabelDefinition properties.

Since

200.1.0

Properties

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Simple expression describing how to build the text label for a feature, often using attributes of the feature. The default is an empty expression and no labels will be produced.

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The preferred position of the text label, with respect to its feature geometry. The default depends on the type of feature geometry:

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Labels will only be visible when the viewing scale is smaller than (or equal to) the maxScale. For example, if the viewing scale is 1:12000 and the LabelingInfo.maxScale is 1:10000, then the labels will be visible (because 1/12000 <= 1/10000).

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Labels will only be visible when the viewing scale is larger than (or equal to) the minScale. For example, if the viewing scale is 1:12000 and the LabelingInfo.minScale is 1:20000, then the labels will be visible (because 1/12000 >= 1/20000).

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The text symbol which describes the overall appearance of label text (e.g. font and size). If no LabelingInfo.symbol has been set, then no labels can be created.

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Whether the data source should translate domain identifiers into meanings using a CodedValueDomain. For any translation to occur, the data source must have one or more CodedValueDomain values set up for the attribute fields.

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Limit the set of features for which labels will be generated and placed. This is a SQL expression that can refer to the attributes of the feature e.g.: