Symbol Class

Member Function Documentation

[protected] Symbol::Symbol(QObject *parent = nullptr)

Default constructor with an optional parent.

Symbol::~Symbol()

Destructor.

TaskWatcher Symbol::createSwatch(const Geometry &geometry, float width, float height, const QColor &backgroundColor = QColor())

Creates a swatch image using the provided geometry, width, height, and optional backgroundColor.

The background color defaults to transparent when the backgroundColor is not provided. The width, height, and geometry coordinate values are measured in device independent pixels (DIPs). This operation will determine the primary screen scale factor for scaling the image size.

Emits the createSwatchCompleted(QUuid, QImage) signal when the swatch image operation completes.

Note: The specified geometry is in DIPs, with the point {0,0} located at the centerpoint of the swatch image. The x-axis increases towards the right-hand side of the swatch image. The y-axis increases towards the top of the swatch image. For example, when creating a swatch for a MarkerSymbol, specifying a geometry of {10,10} will draw the marker 10 DIPs up and to the right of the center of the swatch. The geometry type should correspond to the symbol type. The geometry's spatial reference is ignored.

TaskWatcher Symbol::createSwatch(const Geometry &geometry, float width, float height, float screenScale, const QColor &backgroundColor = QColor())

Creates a swatch image using the provided geometry, width, height, screenScale, and optional backgroundColor.

The background color defaults to transparent when the backgroundColor is not provided. The width, height, and geometry coordinate values are measured in device independent pixels (DIPs). This operation will use the provided screenScale parameter to scale the image size.

Emits the createSwatchCompleted(QUuid, QImage) signal when the swatch image operation completes.

Note: The specified geometry is in DIPs, with the point {0,0} located at the centerpoint of the swatch image. The x-axis increases towards the right-hand side of the swatch image. The y-axis increases towards the top of the swatch image. for example, when creating a swatch for a MarkerSymbol, specifying a geometry of {10,10} will draw the marker 10 DIPs up and to the right of the center of the swatch. The geometry type should correspond to the symbol type. The geometry's spatial reference is ignored.

TaskWatcher Symbol::createSwatch(float width, float height, float screenScale, const QColor &backgroundColor = QColor())

Creates a swatch image using the provided width, height, screenScale, and optional backgroundColor.

The background color defaults to transparent when the backgroundColor is not provided. The width, and height are measured in device independent pixels (DIPs). This operation will use the provided screenScale parameter to scale the image size.

Emits the createSwatchCompleted(QUuid, QImage) signal when the swatch image operation completes.

This function was introduced in Esri::ArcGISRuntime 100.3.

TaskWatcher Symbol::createSwatch(const QColor &backgroundColor = QColor())

Creates a swatch image using the optional backgroundColor.

The background color defaults to transparent when the backgroundColor is not provided. This operation will determine the primary screen scale factor for scaling the image size.

Emits the createSwatchCompleted(QUuid, QImage) signal when the swatch image operation completes.

TaskWatcher Symbol::createSwatch(float screenScale, const QColor &backgroundColor = QColor())

Creates a swatch image using the provided screenScale, and optional backgroundColor.

The background color defaults to transparent when the backgroundColor is not provided. This operation will use the provided screenScale parameter to scale the image size.

Emits the createSwatchCompleted(QUuid, QImage) signal when the swatch image operation completes.

[signal] void Symbol::createSwatchCompleted(QUuid taskId, QImage image)

Emitted when create swatch image operation completes successfully.

• taskId - The ID of the create swatch task.
• image - The swatch image.

[static] Symbol *Symbol::fromJson(const QString &json, QObject *parent = nullptr)

Creates and returns a new Symbol from the provided json, with an optional parent.

Sizes of symbols in JSON are represented in points (not pixels).

Symbol layers in a multilayer symbol are in reverse order of how they appear in the JSON representation.

For Symbols of type MarkerSymbol, an angle set from JSON will be inverted (e.g. an angle of 20 will become -20).

See also JsonSerializable.

SymbolType Symbol::symbolType() const

Returns the symbol type.

[virtual] QString Symbol::toJson() const

Reimplemented from JsonSerializable::toJson().

Returns this Symbol as a JSON representation.

Sizes of symbols in JSON are represented in points (not pixels).

Symbol layers in a multilayer symbol are in reverse order of how they appear in the JSON representation.

See also JsonSerializable.

[virtual] QJsonObject Symbol::unknownJson() const

Reimplemented from JsonSerializable::unknownJson().

Gets the unknown JSON of this object.

See also JsonSerializable.

[virtual] QJsonObject Symbol::unsupportedJson() const

Reimplemented from JsonSerializable::unsupportedJson().

Gets the unsupported JSON of this object.

See also JsonSerializable.

bool Symbol::operator==(const Symbol *other) const

Equivalency operator.

Returns whether this object and other are equal.