ClassBreaksRenderer class final
A class breaks renderer is a renderer that classifies numeric data into two or more ranges of values to create a visualization.
A class breaks renderer contains a collection of ranges (or class breaks). Each ClassBreak has a ClassBreak.minValue, ClassBreak.maxValue, and a unique ClassBreak.symbol. The ranges reflect a specific RendererClassificationMethod, such as equal interval, natural breaks, quantile, standard deviation and manual classification.
ClassBreaksRenderer contains properties for setting the field that the
class breaks refer to and also for controlling normalization. It also
defines a default label and symbol to display for values that don't fall
within any of the class breaks. You can add or remove a ClassBreak from
this renderer via the ClassBreaksRenderer.classBreaks collection.
Class breaks can be defined as continuous, where the minimum value of a break is defined by the maximum value of the previous class break. For continuous class breaks only the max value needs to be set on each ClassBreak.
For discontinuous class breaks, set both a min and a max value in each ClassBreak.
Constructors
-
ClassBreaksRenderer({String fieldName = '', List<
ClassBreak> classBreaks = const []}) -
Creates a new class breaks renderer with the given class breaks applied to
the given field.
factory
Properties
- backgroundFillSymbol ↔ ArcGISSymbol?
-
The renderer's background fill symbol.
getter/setter pair
-
classBreaks
→ List<
ClassBreak> -
The collection of class breaks which define each range in this renderer.
no setter
- classificationMethod → RendererClassificationMethod
-
The renderer's classification method.
no setter
- defaultLabel ↔ String
-
The label used for the default symbol.
getter/setter pair
- defaultSymbol ↔ ArcGISSymbol?
-
The default symbol for values that don't fall within any of the class
breaks.
getter/setter pair
- fieldName ↔ String
-
The name of the field that the class breaks apply to.
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- minValue ↔ double
-
The minimum value of the first class break if the renderer uses continuous
class breaks.
getter/setter pair
- normalizationField ↔ String
-
The renderer's normalization field.
getter/setter pair
- normalizationTotal ↔ double
-
The renderer's normalization total.
getter/setter pair
- normalizationType ↔ RendererNormalizationType
-
The renderer's normalization type.
getter/setter pair
- rotationExpression ↔ String
-
The expression describing how attributes values are translated into a
rotation to be applied to the GeoElement.
getter/setter pairinherited
- rotationType ↔ RotationType
-
Indicates whether the rotation calculated from the
Renderer.rotationExpression is interpreted as arithmetic or geographic.
getter/setter pairinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
clone(
) → Renderer -
Clones the Renderer.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
symbolForFeature(
{required Feature feature, bool applyAttributeOverrides = false}) → ArcGISSymbol? -
Returns the symbol that is used to visualize the given feature with
override attributes from the renderer.
inherited
-
symbolForGraphic(
{required Graphic graphic, bool applyAttributeOverrides = false}) → ArcGISSymbol? -
Returns the symbol that is used to visualize the given graphic with
override attributes from the renderer.
inherited
-
toJson(
) → Map< String, dynamic> -
Returns a JSON representation of this Object in the data type used by jsonDecode.
inherited
-
toJsonString(
) → String -
Returns a JSON representation of this Object as a String.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited