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Showing content from https://developers.arcgis.com/swift/reference/labeling-properties-manual/ below:

Labeling properties manual | ArcGIS Maps SDK for Swift

This manual describes the available properties for controlling labeling in your ArcGIS Maps SDKs for Native Apps application. For the purposes of labeling, graphics generated by ArcGIS Maps SDKs for Native Apps are treated as if they are features. References to features within this document can be assumed to refer to both features and graphics.

1.0 Label Properties

A list of all supported ArcGIS Maps SDK for Native Apps labeling properties, their values and ArcGIS Pro export interpretations.

1.1.0 angle

The angular positions and layout directions for labels on or around point feature symbols.

This optional object specifies how to position a label following the direction of an angle. The angular position may be different for each feature (driven by one or more feature attributes) or constant for all features (specified by a fixed number).

The LabelDefinition.placement will still be used to indicate whether offset or centered positioning is required, but the exact position will be overridden by the angle calculated for the feature. Once the position has been determined, LabelDefinition.textLayout and LabelDefinition.textOrientation are used to specify the layout of the text at that position.

1.1.1 Overview Data Type Default Value JSON Example LabelAngle null "labelAngleInfo": { "angleExpressionInfo": {"expression": "iif($feature.type IS 11, $feature.SITE_ANGLE, 90-2*$feature["other angle"])","returnType": "number"},"rotationType": "arithmetic"} 1.1.2 Property values Values Summary angleExpression Specifies how the angle (in degrees) is calculated from the feature attributes,using an Arcade expression. rotationType Whether the angle should be interpreted as arithmetic or geographic. 1.1.3 Other property relationships 1.1.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property angle.

Rotation (point features) Rotation angle rotation expression angle.angleExpression rotation field AND additional rotation angle.angleExpression rotation type angle.rotationType 1.1.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property angle.

Rotation (point features) Rotation angle place label at specified angles AND angle count MORE THAN 0 angle.angleExpression place label at an angle specified by a field angle.angleExpression 1.2.0 deconflictionStrategy

The strategy for moving labels to avoid overlapping feature, annotation, dimension or graphic symbols or higher priority labels. In 3D LabelDeconflictionStrategy.static is selected by default.

The default is LabelDeconflictionStrategy.automatic (which will be interpreted as LabelDeconflictionStrategy.static i.e. use preferred location unless it would overlap an obstacle).

1.2.1 Overview Data Type Default Value JSON Example LabelDeconflictionStrategy static "deconflictionStrategy":"dynamic" 1.2.2 Property values Values Summary automatic The label will use the default deconfliction strategy (LabelDeconflictionStrategy.static). dynamic Place the label in the preferred location, but move to an alternative location to not overlap higher priority labels or feature/graphic symbols. none Place the label in the preferred location, regardless of overlaps with other features, graphics or labels. static Place the label in the preferred location, unless it would overlap a higher priority label or feature/graphic symbol. dynamicNeverRemove Place the label in the preferred location, but move to an alternative location to minimize overlapping higher priority labels or feature/graphic symbols. 1.2.3 Other property relationships 1.2.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property deconflictionStrategy.

Position options (point features) Position options deconflictionStrategy position IS offset label around the point AND zone count MORE THAN 1 AND never remove IS true dynamicNeverRemove position IS offset label around the point AND zone count MORE THAN 1 AND never remove IS false dynamic (position IS centered label OR (position IS offset label around the point AND zone count EQUALS 1)) AND never remove IS true none (position IS centered label OR (position IS offset label around the point AND zone count EQUALS 1)) AND never remove IS false static Position options (line features) Position options deconflictionStrategy offset along line IS best position AND never remove IS true dynamicNeverRemove offset along line IS best position AND never remove IS false dynamic offset along line IS before/after start/finish position AND never remove IS true none offset along line IS before/after start/finish position AND never remove IS false static Position options (polygon features) Position options deconflictionStrategy place label at fixed position IS true AND never remove IS true none place label at fixed position IS true AND never remove IS false static place label at fixed position IS false AND never remove IS true dynamicNeverRemove place label at fixed position IS false AND never remove IS false dynamic 1.2.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property deconflictionStrategy.

Position options (point features) Position options deconflictionStrategy priority zone count MORE THAN 1 AND place overlapping labels IS true dynamicNeverRemove priority zone count MORE THAN 1 AND place overlapping labels IS false dynamic zones or angles count EQUAL TO 1 AND place overlapping labels IS true none zones or angles count EQUAL TO 1 AND place overlapping labels IS false static Position options (line features) Position options deconflictionStrategy position IS horizontal AND place overlapping labels IS true dynamicNeverRemove position IS horizontal AND place overlapping labels IS false dynamic position IS parallel AND location along the line IS at best AND place overlapping labels IS true dynamicNeverRemove position IS parallel AND location along the line IS at best AND place overlapping labels IS false dynamic position IS parallel AND location along the line IS NOT at best AND place overlapping labels IS true none position IS parallel AND location along the line IS NOT at best AND place overlapping labels IS false static position IS curved AND place overlapping labels IS true dynamicNeverRemove position IS curved AND place overlapping labels IS false dynamic position IS perpendicular AND location along the line IS at best AND place overlapping labels IS true dynamicNeverRemove position IS perpendicular AND location along the line IS at best AND place overlapping labels IS false dynamic position IS perpendicular AND location along the line IS NOT at best AND place overlapping labels IS true none position IS perpendicular AND location along the line IS NOT at best AND place overlapping labels IS false static Position options (polygon features) Position options deconflictionStrategy place overlapping labels IS true none place overlapping labels IS false static 1.3.0 expression

The expression script used to calculate the label text.

The expression may be a combination of literal text and attribute values from the feature being labeled. The syntax of the expression is determined by which label expression object is used: ArcadeLabelExpression, SimpleLabelExpression or WebmapLabelExpression.

A label expression using one scripting language can be replaced by an expression using a different scripting language just by creating an object of the new LabelExpression subclass and assigning it to LabelDefinition.expression.

The default value is an empty ArcadeLabelExpression, which will evaluate to an empty text label.

The expression needs to create a text string which will be used as the label text. The text string can be any legal UTF16 characters.

The text string can also include HTML-style formatting tags e.g.

"Hello <BOL>World</BOL>"

where the angle-bracketed tags will not appear in the label, but may change the presentation of the text. In the example, the "World" will appear in bold.

The available tags are:

Tags can be upper or lower case, but not a mixture. Tags can be nested e.g. "<ITA>Hello <BOL>World</BOL></ITA>".

Full documentation of the tag parameters is available in the document Text formatting tags.

Note

Not all ArcGIS Pro tags are currently supported in the ArcGIS Maps SDKs for Native Apps. The <CLR> tag is currently only supported for text in 2D views. Any unsupported tags are ignored and will not written as part of the label text.

1.3.1 Overview Data Type Default Value JSON Example LabelExpression "labelExpressionInfo":{"expression":"round($feature.length,2) + "m^2""} 1.3.2 Property values Values Summary expression The label expression script string. objectType The type of the label expression. 1.3.3 Other property relationships

None

1.3.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property expression.

expression (all features) expression expression expression AND language IS arcade expression.arcadeExpression expression IS single field AND language NOT arcade expression.simpleExpression 1.3.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property expression.

expression (all features) expression expression expression AND language IS arcade expression.arcadeExpression expression IS single field AND language NOT arcade expression.simpleExpression 1.4.0 featureBoundaryOverlapStrategy

The strategy for whether other labels are allowed to overlap the boundary of polygon features/graphics being labeled by this LabelDefinition. In 3D scenes, labels will be allowed to overlap the boundaries of polygon features.

The default is LabelOverlapStrategy.automatic, which will give the same behavior as LabelOverlapStrategy.allow.

1.4.1 Overview Data Type Default Value JSON Example LabelOverlapStrategy allow "allowOverlapOfFeatureBoundary":"avoid" 1.4.2 Property values Values Summary automatic The other label will use the default overlap behavior which depends on the object being overlapped. allow The other label will be allowed to place itself in its preferred location, ignoring this obstacle. avoid The other label will move to minimize overlapping this obstacle, but will overlap if necessary. exclude The other label will not be placed rather than overlap this obstacle. 1.4.3 Other property relationships 1.4.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property featureBoundaryOverlapStrategy.

Boundary weight (polygon features) Boundary weight featureBoundaryOverlapStrategy polygon boundary weight IS 0 allow polygon boundary weight IS 1..999 avoid polygon boundary weight IS 1000 exclude 1.4.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property featureBoundaryOverlapStrategy.

None, not supported for featureBoundaryOverlapStrategy

1.5.0 featureInteriorOverlapStrategy

The strategy for whether other labels are allowed to overlap the interior of polygon features/graphics being labeled by this LabelDefinition. In 3D scenes, labels will be allowed to overlap the interiors of polygon features.

The default is LabelOverlapStrategy.automatic which will give the same behavior as LabelOverlapStrategy.allow.

1.5.1 Overview Data Type Default Value JSON Example LabelOverlapStrategy allow "allowOverlapOfFeatureInterior":"exclude" 1.5.2 Property values Values Summary automatic The other label will use the default overlap behavior which depends on the object being overlapped. allow The other label will be allowed to place itself in its preferred location, ignoring this obstacle. avoid The other label will move to minimize overlapping this obstacle, but will overlap if necessary. exclude The other label will not be placed rather than overlap this obstacle. 1.5.3 Other property relationships 1.5.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property featureInteriorOverlapStrategy.

Feature weight (all features) Feature weight featureInteriorOverlapStrategy feature weight IS 0 allow feature weight IS 1..999 avoid feature weight IS 1000 exclude 1.5.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property featureInteriorOverlapStrategy.

Feature weight (all features) Feature weight featureInteriorOverlapStrategy feature weight IS none allow feature weight IS low allow feature weight IS medium avoid feature weight IS high exclude 1.6.0 labelOverlapStrategy

The strategy for whether other labels are allowed to overlap labels created by this LabelDefinition. In 3D, labels will not be allowed to overlap other labels. Overlapping labels will not be displayed until the user zooms in further so that the labels don't overlap.

The default is LabelOverlapStrategy.automatic which will give the same behavior as LabelOverlapStrategy.exclude.

1.6.1 Overview Data Type Default Value JSON Example LabelOverlapStrategy exclude "allowOverlapOfLabel":"avoid" 1.6.2 Property values Values Summary automatic The other label will use the default overlap behavior which depends on the object being overlapped. allow The other label will be allowed to place itself in its preferred location, ignoring this obstacle. avoid The other label will move to minimize overlapping this obstacle, but will overlap if necessary. exclude The other label will not be placed rather than overlap this obstacle. 1.6.3 Other property relationships

None

1.6.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property labelOverlapStrategy.

Background label (all features) Background label labelOverlapStrategy background label IS true allow background label IS false exclude 1.6.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property labelOverlapStrategy.

Label weight (all features) Label weight labelOverlapStrategy label weight IS low allow label medium IS medium avoid label high IS high exclude 1.7.0 lineConnection

The strategy for whether line features with the same label, and matching end vertices, should be joined before sharing a label. 3D line features will be treated as independent features with their own label.

The default is LabelLineConnection.automatic, which will be interpreted as LabelLineConnection.minimizeLabels.

1.7.1 Overview Data Type Default Value JSON Example LabelLineConnection minimizeLabels "lineConnection": "minimizeLabels" 1.7.2 Property values Values Summary automatic The default approach for connectable features is to connect them (LabelLineConnection.minimizeLabels) minimizeLabels Line geometries with the same label and coincident end vertices should be considered together as a single, continuous geometry when placing labels. none Keep one label per line feature geometry. unambiguousLabels Line geometries with the same label and coincident end vertices should be joined, until they hit a junction. 1.7.3 Other property relationships

None

1.7.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property lineConnection.

Connect features (all features) Connect features lineConnection connect features IS false none connect features IS true AND line connection IS minimize labels minimizeLabels connect features IS true AND line connection IS unambiguous unambiguousLabels 1.7.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property lineConnection.

Line connection (all features) Line connection lineConnection default none 1.8.0 maxScale

The maximum scale at which labels will be visible. In 3D scenes,the scale range is between individual label and view plane instead of map and view plane.

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 LabelDefinition.maxScale is 1:10000, then the labels will be visible (because 1/12000 < 1/10000). A LabelDefinition.maxScale of 0, which is the default, indicates no upper limit on the viewing scale.

1.8.1 Overview Data Type Default Value JSON Example double 0 "maxScale": 10000 1.8.2 Property values Values Summary 0 Always visible at all scales GREATER THAN 0 Show label when viewing scale is less than or equal to maxScale 1.8.3 Other property relationships

None

1.8.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property maxScale.

visibility range (all features) visibility range maxScale in beyond value maxScale value 1.8.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property maxScale.

visibility range (all features) visibility range maxScale in beyond value maxScale value 1.9.0 minScale

The minimum scale at which labels will be visible. In 3D scenes, the scale range is between individual label and view plane instead of map and view plane.

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 LabelDefinition.minScale is 1:20000, then the labels will be visible (because 1/12000 > 1/20000). A LabelDefinition.minScale of 0, which is the default, indicates no lower limit on the viewing scale.

1.9.1 Overview Data Type Default Value JSON Example double 0 "minScale": 1250000 1.9.2 Property values Values Summary 0 Always visible at all scales GREATER THAN 0 Show label when viewing scale is greater than or equal to minScale 1.9.3 Other property relationships

None

1.9.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property minScale.

visibility range (all features) visibility range minScale out beyond value minScale value 1.9.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property minScale.

visibility range (all features) visibility range minScale out beyond value minScale value 1.10.0 multipartStrategy

The strategy for how many labels should be placed on each polyline or polygon (multi-ring) feature.

The default is LabelMultipartStrategy.automatic.

1.10.1 Overview Data Type Default Value JSON Example LabelMultipartStrategy labelPerPart "multiPart": "labelPerPart" 1.10.2 Property values Values Summary automatic Labeling will use the default distribution of labels across multi-part features. labelLargest If a feature consists of multiple parts, only the largest one will be assigned a label. labelPerFeature One label per feature, but not supported yet in ArcGIS Maps SDK for Native Apps. labelPerPart If a feature consists of multiple geometries, each geometry will be assigned a label. labelPerSegment One label per segment, but not supported yet in ArcGIS Maps SDK for Native Apps. 1.10.3 Other property relationships

None

1.10.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property multipartStrategy.

Label largest (polygon features) Label largest multipartStrategy label largest feature part IS true labelLargest label largest feature part IS false labelPerPart 1.10.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property multipartStrategy.

Duplicate labels (polygon features) Duplicate labels multipartStrategy remove all duplicates labelLargest one label per feature labelLargest one label per part labelPerPart 1.11.0 name

Text name for the class of labels.

This name is assigned by the map author to clarify the purpose of this label definition. It is used for display or debugging purposes. If no name is explicitly assigned, then an empty text string is stored.

1.11.1 Overview Data Type Default Value JSON Example String "name": "Perimeter length" 1.11.2 Property values Values Summary no name industrial buildings typical name buildings-commercial-retail more specific name 1.11.3 Other property relationships

None

1.11.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property name.

Label class name (all features) Label class name name name name 1.11.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property name.

Label class name (all features) Label class name name name name 1.12.0 offsetDistance

The distance (in points i.e. 1/72 inches) that text should be moved away from its features.

The distance is measured from the point symbol radius or line feature symbology edge. The distance is measured on the screen (i.e. not in the map) in points, comparable to the text font size.

This can be a negative value, to pull the label closer to the feature if, for example, the average size for a point symbol is overly conservative for the actual graphic shown.

If no value is set, then 1 point is assumed.

1.12.1 Overview Data Type Default Value JSON Example double 1 "offsetDistance": 5 1.12.2 Property values Values Summary number signed numeric value 1.12.3 Other property relationships

None

1.12.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property offsetDistance.

Preferred offset (all features) Preferred offset offsetDistance preferred offset offsetDistance 1.12.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property offsetDistance.

None, not supported for offsetDistance

1.13.0 overrunStrategy

The strategy for whether a label will be visible at scales where the feature is too small for the label to fit. Not supported by 3D scenes.

The default is LabelOverrunStrategy.automatic which will give different behavior depending on the type of feature that the label might overrun.

1.13.1 Overview Data Type Default Value JSON Example LabelOverrunStrategy automatic "allowOverrun": false 1.13.2 Property values Values Summary automatic The label will use the default overrun behavior which depends on the object being overrun.This value corresponds to no value being specified for the LabelDefinition.overrunStrategy property. none The label cannot run past the ends of its line geometry or edges of its polygon geometry. allow The label can run past the ends of its line geometry or edges or its polygon geometry. 1.13.3 Other property relationships

None

1.13.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property overrunStrategy.

overrun (line features) overrun overrunStrategy offset along line IS best position AND maximum IS MORE THAN 0 allow offset along line IS best position AND never remove IS true allow offset along line IS best position AND never remove IS false AND maximum IS 0 none overrun (polygon features) overrun overrunStrategy maximum IS EQUAL TO 0 allow maximum IS LESS THAN 0 none 1.13.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property overrunStrategy.

overlap (line features) overlap overrunStrategy location along the line IS at best AND place overlapping labels IS true allow location along the line IS at best AND place overlapping labels IS false none only place label inside polygon (polygon features) only place label inside polygon overrunStrategy true none false allow 1.14.0 placement

The preferred position of the text label, with respect to its feature geometry.

The default is LabelingPlacement.automatic. The effect of this is the same as one of the following, depending on the type of feature geometry:

1.14.1 Overview Data Type Default Value JSON Example LabelingPlacement automatic "labelPlacement": "esriServerPolygonPlacementAlwaysHorizontal" 1.14.2 Property values Values Summary automatic Default position for the label, dependent on the type of feature being labeled. unknown Preferred placement position has not been specified. lineAboveAfter Lower-left corner of label is at final geometry coord; label extrapolates the last geometry segment. lineAboveAlong Lower midpoint of label prefers the midpoint of the geometry; label follows the geometry segments. lineAboveBefore Lower right corner of label is at first geometry coord; label extrapolates the first geometry segment. lineAboveEnd Lower right corner of label is at final geometry coord; label follows the last geometry segments. lineAboveStart Lower left corner of label is at first geometry coord, label follows the first geometry segments. lineBelowAfter Upper left corner of label is at final geometry coord, label extrapolates the last geometry segment. lineBelowAlong Upper midpoint of label prefers the midpoint of the geometry, label follows the geometry segments. lineBelowBefore Upper right corner of label is at first geometry coord, label extrapolates the first geometry segment. lineBelowEnd Upper right corner of label is at final geometry coord, label follows the last geometry segments. lineBelowStart Upper left corner of label is at first geometry coord, label follows the first geometry segments. lineCenterAfter Left midpoint of label is at final geometry coord, label extrapolates the last geometry segment. lineCenterAlong Center of label prefers the midpoint of the geometry, label follows the geometry segments. lineCenterBefore Right midpoint of label is at first geometry coord, label extrapolates the first geometry segment. lineCenterEnd Right midpoint of label is at final geometry coord, label follows the last geometry segments. lineCenterStart Left midpoint of label is at first geometry coord, label follows the first geometry segments. pointAboveCenter Lower midpoint of label is offset north of point symbol. pointAboveLeft Lower-right corner of the label is offset northwest of point symbol. pointAboveRight Lower left corner of the label is offset North-east of point symbol. pointBelowCenter Upper midpoint of label is offset South of point symbol. pointBelowLeft Upper right corner of the label is offset South-west of point symbol. pointBelowRight Upper left corner of the label is offset South-east of point symbol. pointCenterCenter Center of label is placed on geometry point. pointCenterLeft Right midpoint of label is offset West of point symbol. pointCenterRight Left midpoint of label is offset East of point symbol. polygonAlwaysHorizontal Center of label is as far inside polygon as possible. 1.14.3 Other property relationships 1.14.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property placement.

Label placement (point features) Label placement placement placement IS best position AND north zone IS highest priority pointAboveCenter placement IS best position AND north east zone IS highest priority pointAboveRight placement IS best position AND east zone IS highest priority pointCenterRight placement IS best position AND south east zone IS highest priority pointBelowRight placement IS best position AND south zone IS highest priority pointBelowCenter placement IS best position AND south west zone IS highest priority pointBelowLeft placement IS best position AND west zone IS highest priority pointCenterLeft placement IS best position AND north west zone IS highest priority pointAboveLeft placement IS centered on point pointCenterCenter placement IS top of point pointAboveCenter placement IS top right of point pointAboveRight placement IS right of point pointCenterRight placement IS bottom right of point pointBelowRight placement IS bottom of point pointBelowCenter placement IS bottom left of point pointCenterLeft placement IS left of point pointAboveLeft placement IS top left of point pointAboveLeft Label placement (line features) Label placement placement placement IS offset AND constrain offset IS above line AND offset along line IS best position aboveAlong placement IS offset AND constrain offset IS left of line AND offset along line IS best position aboveAlong placement IS offset AND constrain offset IS below line AND offset along line IS best position belowAlong placement IS offset AND constrain offset IS right of line AND offset along line IS best position belowAlong placement IS offset AND constrain offset IS above line AND offset along line IS before start of line aboveBefore placement IS offset AND constrain offset IS above line AND offset along line IS along line from start aboveStart placement IS offset AND constrain offset IS above line AND offset along line IS best position aboveAlong placement IS offset AND constrain offset IS above line AND offset along line IS along line from end aboveEnd placement IS offset AND constrain offset IS above line AND offset along line IS after end of line aboveAfter placement IS center AND offset along line IS before start of line centerBefore placement IS center AND offset along line IS along line from start centerStart placement IS center AND offset along line IS best position centerAlong placement IS center AND offset along line IS along line from end centerEnd placement IS center AND offset along line IS after end of line centerAfter placement IS offset AND constrain offset IS below line AND offset along line IS before start of line belowBefore placement IS offset AND constrain offset IS below line AND offset along line IS along line from start belowStart placement IS offset AND constrain offset IS below line AND offset along line IS best position belowAlong placement IS offset AND constrain offset IS below line AND offset along line IS along line from end belowEnd placement IS offset AND constrain offset IS below line AND offset along line IS after end of line belowAfter Label placement (polygon features) Label placement placement default polygonCenterHorizontal 1.14.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property placement.

Label placement (point features) Label placement placement place label on top of point IS true pointCenterCenter place label at specified angles pointAboveRight place label at an angle specified by a field pointAboveRight offset label horizontally around the point AND north zone is highest priority pointAboveCenter offset label horizontally around the point AND north east zone is highest priority pointAboveRight offset label horizontally around the point AND east zone is highest priority pointCenterRight offset label horizontally around the point AND south east zone is highest priority pointBelowRight offset label horizontally around the point AND south zone is highest priority pointBelowCenter offset label horizontally around the point AND south west zone is highest priority pointBelowLeft offset label horizontally around the point AND west zone is highest priority pointCenterLeft offset label horizontally around the point AND north west zone is highest priority pointAboveLeft Label placement (line features) Label placement placement align to IS line AND left of the line IS true AND location along line IS at start lineAboveStart align to IS line AND left of the line IS true AND location along line IS at best lineAboveAlong align to IS line AND left of the line IS true AND location along line IS at end lineAboveEnd align to IS line AND on the line IS true AND location along line IS at start lineCenterStart align to IS line AND on the line IS true AND location along line IS at best lineCenterAlong align to IS line AND on the line IS true AND location along line IS at end lineCenterEnd align to IS line AND right of line IS true AND location along line IS at start lineBelowStart align to IS line AND right of line IS true AND location along line IS at best lineBelowAlong align to IS line AND right of line IS true AND location along line IS at end lineBelowEnd align to IS page AND above the line IS true AND location along line IS at start lineAboveStart align to IS page AND above the line IS true AND location along line IS at best lineAboveAlong align to IS page AND above the line IS true AND location along line IS at end lineAboveEnd align to IS page AND on the line IS true AND location along line IS at start lineCenterStart align to IS page AND on the line IS true AND location along line IS at best lineCenterAlong align to IS page AND on the line IS true AND location along line IS at end lineCenterEnd align to IS page AND below the line IS true AND location along line IS at start lineBelowStart align to IS page AND below the line IS true AND location along line IS at best lineBelowAlong align to IS page AND below the line IS true AND location along line IS at end lineBelowEnd default (polygon features) default placement default polygonCenterHorizontal 1.15.0 priority

Defines which labels are placed first, and can also supplant existing lower-priority labels (e.g. during panning).

Lower values indicate more important labels i.e.:

If set to -1 or not set at all, then default values are used, depending on the geometry types of the features:

This value does not have to be an integer because it is just a continuum of values for comparison. Users can use this to specify that a class of labels should have priority between two other classes with close priorities.

For example, PreferredRoutes might be given priority 13 to appear ahead of general line feature labels, but after general point feature labels. And HistoricSites might be given priority 12.5 to appear ahead of PreferredRoute labels, but still after general point feature labels.

1.15.1 Overview Data Type Default Value JSON Example double -1 "priority": 30 1.15.2 Property values Values Summary -1 automatically calculate based on feature geometry type 0 most important 12 default priority for point features 15 default priority for line 18 default priority for polygon features 1.15.3 Other property relationships 1.15.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property priority.

Priority ranking (all features) Priority ranking priority label class priority order priority 1.15.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property priority.

Priority ranking (all features) Priority ranking priority label class priority order priority 1.16.0 removeDuplicatesDistance

A value that controls the duplicate thinning radius (in points i.e. 1/72 inches).

The distance is measured on the screen (i.e. not in the map) in points, comparable to the text font size. This value is only used if LabelDefinition.removeDuplicatesStrategy is enabled. The default value is 0. This indicates that duplicates should be removed from the entire extent.

1.16.1 Overview Data Type Default Value JSON Example double 0 "removeDuplicatesDistance": 300 1.16.2 Property values Values Summary 0 all duplicates should be removed from the entire extent GREATER THAN 0 remove duplicate distance 1.16.3 Other property relationships

None

1.16.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property removeDuplicatesDistance.

Search Radius (all features) Search Radius removeDuplicatesDistance remove within fixed distance IS true AND search radius value remove duplicate distance value converted to points remove all IS true 0 1.16.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property removeDuplicatesDistance.

Default (all features) Default removeDuplicatesDistance default 0 1.17.0 removeDuplicatesStrategy

The strategy for whether labels are removed if other features have the same text label. This can reduce clutter and free up space.

The default is LabelRemoveDuplicatesStrategy.automatic, which will be interpreted as LabelRemoveDuplicatesStrategy.none indicating that all labels should be shown if possible.

The distance within which to look for duplicates is controlled by LabelDefinition.removeDuplicatesDistance.

1.17.1 Overview Data Type Default Value JSON Example LabelRemoveDuplicatesStrategy automatic "removeDuplicates": "featureType" 1.17.2 Property values Values Summary automatic The default approach to duplicate labels to is keep them (LabelRemoveDuplicatesStrategy.none). all Remove nearby duplicate labels. featureType Remove nearby duplicate labels, if they belong to the same Feature Type. labelClass Remove nearby duplicate labels, if they below to the same Label Class. none No duplicates should be removed. 1.17.3 Other property relationships 1.17.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property removeDuplicatesStrategy.

Remove duplicate labels (all features) Remove duplicate labels removeDuplicatesStrategy remove duplicate labels IS do not remove none remove duplicate labels IS remove within fixed distance featureType remove duplicate labels IS remove all featureType 1.17.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property removeDuplicatesStrategy.

Duplicate labels (all features) Duplicate labels removeDuplicatesStrategy duplicate labels IS remove all duplicates all duplicate labels IS one label per feature none duplicate labels IS one label per part none 1.18.0 repeatDistance

The distance apart (in points i.e. 1/72 inches) that the repetitions should be. In 3D scenes, only one label will be placed per line feature.

This value is only used if LabelDefinition.repeatStrategy is enabled. The distance is measured on the screen along the line feature. As the user zooms in closer, two repetitions move further apart on the screen, until there is room for a new repetition between them. The default is 216 points i.e. line labels should be repeated approximately every 3 inches along long features.

The distance is considered a guide for the approximate label separation and should not be used for precise distance markings.

A distance of 0 disables label repetition.

1.18.1 Overview Data Type Default Value JSON Example double 216 "repeatLabelDistance":200 1.18.2 Property values Values Summary positive number a signed numeric value 1.18.3 Other property relationships

None

1.18.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property repeatDistance.

Repeat minimal interval (line features) Repeat minimal interval repeatDistance minimum interval converted to repeatDistance point value 1.18.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property repeatDistance.

None, not supported for repeatDistance

1.19.0 repeatStrategy

The strategy for whether a label should have multiple copies created and placed along or across the same feature. In 3D scenes, only label will be placed per line feature.

The default is LabelRepeatStrategy.automatic.

The frequency of repetition is controlled by the LabelDefinition.repeatDistance property.

This property is currently only supported for line features, but will be extended to polygons in the future.

1.19.1 Overview Data Type Default Value JSON Example LabelRepeatStrategy automatic "repeatLabel": true 1.19.2 Property values Values Summary automatic Labeling will use the default repetition for the feature type. none Only place one label per feature. repeat Repeat the label along or across the feature. 1.19.3 Other property relationships

None

1.19.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property repeatStrategy.

{"repeatLabel":true, "repeatLabelDistance":200} (line features) {"repeatLabel":true, "repeatLabelDistance":200} repeatStrategy offset along line IS best position AND minimum interval MORE THAN 0 repeat 1.19.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property repeatStrategy.

None, not supported for repeatStrategy

1.20.0 stackAlignment

The strategy for how multi-row (stacked) text should be aligned.

Multi-row text labels can be horizontally aligned on the left, right or at its center. This preference can be specified by the TextSymbol assigned to the LabelDefinition. By using the LabelDefinition.stackAlignment property, the user can choose to use the TextSymbol.horizontalAlignment property for all labels, or can choose to have the most aesthetic alignment calculated case-by-case for each label depending on its placement position around its feature. This is particularly useful for labels of dense point features, where labels may move above, below, left or right of their point symbol, in order to fit on the display.

The default value is LabelStackAlignment.automatic (which will have the same effect on labels as LabelStackAlignment.textSymbol).

This property has no effect if LabelDefinition.stackStrategy = LabelStackStrategy.none.

1.20.1 Overview Data Type Default Value JSON Example LabelStackAlignment textSymbol "stackAlignment": "dynamic" 1.20.2 Property values Values Summary automatic The default behavior is to use LabelStackAlignment.textSymbol. dynamic Set the alignment depending upon the label's position with respect to its feature. textSymbol Follow the alignment specified by the TextSymbol.horizontalAlignment. 1.20.3 Other property relationships 1.20.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property stackAlignment.

Horizontal alignment (all features) Horizontal alignment stackAlignment horizontal alignment IS choose best dynamic horizontal alignment IS constrain left or right dynamic horizontal alignment IS constrain left textSymbol horizontal alignment IS constrain right textSymbol horizontal alignment IS constrain center textSymbol 1.20.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property stackAlignment.

None, not supported for stackAlignment

1.21.0 stackRowLength

A value that limits the number of characters in a row of stacked text.

This length guides the decision on when to break long text strings into separate rows. The line break will be inserted between words, not in the middle of a word, so rows may be longer or shorter than the ideal. Depending on LabelDefinition.stackBreakPosition, the break may be inserted before the breaking word, or after.

The default value is -1 which means to use a default length. It is currently 13 characters but may vary with feature-geometry in the future.

This property has no effect if LabelDefinition.stackStrategy = LabelStackStrategy.none.

1.21.1 Overview Data Type Default Value JSON Example double -1 "stackRowLength": 20 1.21.2 Property values Values Summary -1 defaults to 13 characters GREATER THAN 1 row length 1.21.3 Other property relationships 1.21.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property stackRowLength.

Maximum characters per line (all features) Maximum characters per line stackRowLength maximum characters per line stackRowLength 1.21.5 Standard labeling publishing rules

None, not supported for stackRowLength

1.22.0 stackSeparators

The stack separators that should be used for automatic line breaking of label text.

Each LabelStackSeparator specifies a code point to be looked for in the text. A code point is often thought of as a single character in the text, but may need several chars in a String to describe it. So each LabelStackSeparator.separator is a String intended to describe one code point.

For example:

If it is found, then the LabelStackSeparator also specifies whether:

Three default separators are provided: a comma, a space, and a hyphen. Custom separators can be added, and default separators can be removed if not required.

Note

A carriage return (\n) in the label will always be considered a forced separator.

This property has no effect if LabelDefinition.stackStrategy = LabelStackStrategy.none.

1.22.1 Overview Data Type Default Value JSON Example MutableArray<LabelStackSeparator> [",", " ", "-"] "stackSeparators": [{separator:" ",visible:true,forced:false,breakPosition:"after"}, {separator:";",visible:false,forced:false,breakPosition:"after"}] 1.22.2 Property values Values Summary labelStackSeparator.breakPosition Gets or sets the position where the separator will be written, if used and remaining visible. labelStackSeparator.isForced Gets or sets a value indicating whether a line break must be inserted when the Separator is encountered. isVisible Gets or sets a value indicating whether the separator should still be visible, if chosen as a line break position. separator Gets or sets a string intended to describe one code point. 1.22.3 Other property relationships 1.22.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property stackSeparators.

Stacking separators (all features) Stacking separators stackSeparators stacking separators stackingSeparators 1.22.5 Standard labeling publishing rules

None, not supported for stackSeparators

1.23.0 stackStrategy

The strategy for whether the text should be stacked or wrapped, rather than placed as long trailing labels across the map.

This property controls whether stacking is allowed, or not, or should be calculated automatically based on feature type. The default is LabelStackStrategy.automatic, meaning that stacking will be enabled for point and polygon features and disabled for line features.

1.23.1 Overview Data Type Default Value JSON Example LabelStackStrategy automatic "stackLabel": true 1.23.2 Property values Values Summary automatic Stacking will be enabled for some feature types. none The text should not be broken, no matter how long it is. allow The label placement engine can break the text into two or more rows,if the rows are longer than the LabelDefinition.stackRowLength limit. 1.23.3 Other property relationships 1.23.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property stackStrategy.

Stack label (all features) Stack label stackStrategy stack label IS true allow 1.23.5 Standard labeling publishing rules

None, not supported for stackStrategy

1.24.0 textLayout

The layout of the text, which can be either horizontal, straight, perpendicular, or follow the line feature.

Optional specification of whether, once the text is positioned, it should be written:

The default is LabelTextLayout.automatic, which will be interpreted as:

1.24.1 Overview Data Type Default Value JSON Example LabelTextLayout automatic "textLayout":"horizontal" 1.24.2 Property values Values Summary automatic The text layout will be determined by the individual feature type. horizontal Text will be written horizontally (with respect to the screen). perpendicular Text will be written perpendicular to the LabelTextLayout.straight text layout. straight Text will be written along a straight line, following the point positioning angle or at a tangent to the line feature. followFeature Text will bend to follow a curved or multi-segment line feature. 1.24.3 Other property relationships 1.24.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property textLayout.

Point layout (point features) Point layout textLayout alignment type IS horizontal horizontal alignment type IS straight straight alignment type IS perpendicular perpendicular Line layout (line features) Line layout textLayout placement IS centered straight straight placement IS centered curved followFeature placement IS centered perpendicular perpendicular placement IS centered horizontal horizontal placement IS offset straight straight placement IS offset curved followFeature placement IS offset perpendicular perpendicular placement IS offset horizontal horizontal Polygon layout (polygon features) Polygon layout textLayout default horizontal 1.24.5 Standard labeling publishing rules

None, not supported for textLayout

1.25.0 textOrientation

The orientation of the text, which can be either angle direction or screen-oriented. Not supported by 3D scenes.

Optional specification of whether text should follow the placement angle direction even if it means being rendered upside-down, or whether text should be flipped through 180 degrees to keep it screen-oriented. This setting will take effect whenever the feature geometry determines that the text is angled upside-down, or if the map is rotated within the screen to make the text upside-down (with respect to the screen). The default is LabelTextOrientation.automatic, which is interpreted as LabelTextOrientation.screen.

1.25.1 Overview Data Type Default Value JSON Example LabelTextOrientation automatic "textOrientation":"direction" 1.25.2 Property values Values Summary automatic Use the default text orientation (LabelTextOrientation.screen). direction Text follows the placement angle direction, even if it means being drawn upside-down. screen Text follows the screen orientation, and flips if necessary. 1.25.3 Other property relationships 1.25.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property textOrientation.

Keep label upright (all features) Keep label upright textOrientation keep label upright IS true direction keep label upright IS false screen 1.25.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property textOrientation.

default (all features) default textOrientation default page 1.26.0 textSymbol

The text symbol which describes the overall appearance of label text (e.g. font and size).

If no LabelDefinition.textSymbol has been set, then no labels can be created.

1.26.1 Overview Data Type Default Value JSON Example TextSymbol null "symbol": {"type": "esriTS", "color": [78,0,78,255], "backgroundColor": null, "borderLineColor": null, "verticalAlignment": "bottom", "horizontalAlignment": "left", "rightToLeft": false, "angle": 0, "xoffset": 0, "yoffset": 0, "font": {"family": "Arial", "size": 12, "style": "normal", "weight": "bold", "decoration": "none"}} 1.26.2 Property values Values Summary backgroundColor The color for the text symbol background. color The color for the text symbol. fontDecoration The type of font decoration for the text symbol. fontFamily The font family of the text symbol. fontStyle The font style of the text symbol. fontWeight The font weight of the text symbol. haloColor The color for the halo around the text symbol. haloWidth The size of the halo around the text symbol, in DIPs. horizontalAlignment The horizontal alignment of the text symbol. kerningEnabled If kerning needs to be enabled. It is disabled by default. outlineColor The color for the text symbol outline. outlineWidth The width of the text symbol outline, in DIPs. size The font size of the text symbol. text The text of the text symbol. verticalAlignment The vertical alignment of the text symbol. 1.26.3 Other property relationships

None

1.26.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property textSymbol.

symbol (all features) symbol textSymbol exported as CIM, un-editable in ArcGIS SDK 1.26.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property textSymbol.

symbol (all features) symbol textSymbol exported as CIM, un-editable in ArcGIS SDK 1.27.0 useCodedValues

Specifies 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 s set up for the attribute fields. The default value is true i.e. translation will be done.

This property only affects Simple label expressions. Arcade expressions can use functions to specify when code translations should be carried out. Coded value translation for Webmap expressions is not currently supported.

1.27.1 Overview Data Type Default Value JSON Example bool true "useCodedValues": true 1.27.2 Property values Values Summary boolean a true or false value 1.27.3 Other property relationships

None

1.27.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property useCodedValues.

Use coded values (all features) Use coded values useCodedValues language IS arcade false language IS NOT arcade use coded value descriptions value 1.27.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property useCodedValues.

Use coded values (all features) Use coded values useCodedValues language IS arcade false language IS NOT arcade use coded value descriptions value 1.28.0 whereClause

A SQL where clause expression that limits the set of features for which labels will be generated and placed.

This is a SQL where clause that can refer to the attributes of the feature. For example:

The default value is "" which will allow all features in the data source and extent to be labeled.

1.28.1 Overview Data Type Default Value JSON Example String "where": "LENGTH > 0" 1.28.2 Property values Values Summary string a string representation of the where clause query 1.28.3 Other property relationships

None

1.28.4 Maplex labeling publishing rules

Outlines which Maplex Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property whereClause.

SQL expression (all features) SQL expression whereClause new expression whereClause value 1.28.5 Standard labeling publishing rules

Outlines which Standard labeling Label class property settings are required to achieve a desired value for the ArcGIS Maps SDKs for Native Apps labeling property whereClause.

SQL expression (all features) SQL expression whereClause new expression whereClause value 2.0 Label Property relationships 2.1 priority x deconflictionStrategy

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IF 'current label priority LESS THAN other overlapping label priority'
AND 'current label IS NOT overlapping a barrier feature symbol'
AND 'current label IS NOT overlapping an annotation symbol'
AND 'current label IS NOT overlapping a dimension symbol'
  THEN 'place label'

IF 'label priority MORE THAN OR EQUAL to the other overlapping label priority'
  IF 'deconflictionStrategy IS static'
    THEN 'label will not be placed'

  IF 'deconflictionStrategy IS dynamic'
    THEN 'label will attempt to move'
2.2 priority x removeDuplicatesStrategy

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IF 'current label priority LESS THAN other label priority'
  THEN 'place label'

IF 'current label priority MORE THAN OR EQUAL TO other label priority'
  IF 'current label removeDuplicatesStrategy IS None'
    THEN 'place label'

  IF 'current label text EQUALS other label text'
  AND 'other label has been placed'
  AND 'other label position within current label removeDuplicatesDistance'
    IF 'current label removeDuplicatesStrategy IS in_Same_Feature_type'
    AND 'current label featureType EQUALS other label featureType'
      THEN 'Label will not be placed'

    IF 'current label removeDuplicatesStrategy IS in_Same_Label_class'
    AND 'current label labelClass EQUALS other label labelClass'
      THEN 'Label will not be placed'

    IF 'current label removeDuplicatesStrategy IS all'
      THEN 'Label will not be placed'

    OR
      THEN 'place label'

  OR
    THEN 'place label'
2.3 featureBoundaryOverlapStrategy x deconflictionStrategy

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IF 'current label featureBoundaryOverlapStrategy IS allow'
AND 'current label overlaps featureBoundary'
  THEN 'label will be placed'

 IF 'current label featureBoundaryOverlapStrategy IS avoid'
AND 'current label overlaps featureBoundary'
  IF 'current label deconflictionStrategy IS static'
    THEN 'label will be placed'

  OR 'current label deconflictionStrategy IS dynamic'
    THEN 'label will attempt to move, but may still be placed on feature boundary'

IF 'current label featureBoundaryOverlapStrategy IS exclude'
AND 'current label overlaps featureBoundary'
  IF 'current label deconflictionStrategy IS static'
    THEN 'label will not be placed'

  OR 'current label deconflictionStrategy IS dynamic'
    THEN 'label will attempt to move, but will definitely not be placed on feature boundary'
2.4 featureInteriorOverlapStrategy x deconflictionStrategy

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IF 'current label featureInteriorOverlapStrategy IS allow'
AND 'current label overlaps featureInterior'
  THEN 'label will be placed'

IF 'current label featureInteriorOverlapStrategy IS avoid'
AND 'current label overlaps featureInterior'
  IF 'current label deconflictionStrategy IS static'
    THEN 'label will be placed'

  OR 'current label deconflictionStrategy IS dynamic'
    THEN 'label will attempt to move, but may still be placed on feature interior'

IF 'current label featureInteriorOverlapStrategy IS exclude'
AND 'current label overlaps featureInterior'
  IF 'current label deconflictionStrategy IS static'
    THEN 'label will not be placed'

  OR 'current label deconflictionStrategy IS dynamic'
    THEN 'label will attempt to move, but will definitely not be placed on feature interior'
2.5 angle x placement

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IF 'placement IS offset from point'
  THEN 'label position IS calculated from angle'
2.6 angle x textLayout x placement

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IF 'textLayout IS horizontal'
  IF 'placement IS offset from point'
    THEN 'label position IS calculated from angle, and label layout IS horizontal'

  OR
    THEN 'label position IS centered on point, and label layout IS horizontal'

IF 'textLayout IS straight'
  IF 'placement IS offset from point'
    THEN 'label position IS calculated from angle, and label layout IS rotated by angle'

  OR
    THEN 'label position IS centered on point, and label layout IS rotated by angle'

 IF 'textLayout IS perpendicular'
  IF 'placement IS offset from point'
    THEN 'label position IS calculated from angle, and label layout IS rotated by angle + 90'

  OR
    THEN 'label position IS centered on point, and label layout IS rotated by angle + 90'

IF 'textLayout IS followFeature'
  THEN 'ignore angle'
2.7 angle x textOrientation

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IF 'label IS rotated upside down'
  IF 'textOrientation IS set as direction'
    THEN 'allow upside down label text'

  IF 'textOrientation IS set as screen'
    THEN 'label text will flipped to appear upright'
2.8 stackAlignment x stackstrategy

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IF 'stackStrategy IS set to none'
  THEN 'stackAlignment has no effect'
2.9 stackRowLength x stackStrategy

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IF 'stackStrategy IS set to none'
  THEN 'stackRowLength has no effect'
2.10 stackSeparators x stackStrategy

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IF 'stackStrategy IS set to none'
  THEN 'stackSeparators has no effect'

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