Class: QgsPointCloudClassifiedRenderer

class qgis.core.QgsPointCloudClassifiedRenderer

Bases: QgsPointCloudRenderer

Renders point clouds by a classification attribute.

New in version 3.18.

QgsPointCloudClassifiedRenderer(attributeName: str = ‘’, categories: Iterable[QgsPointCloudCategory] = []) Constructor for QgsPointCloudClassifiedRenderer.

Methods

addCategory	Adds a category to the renderer.
addPointToTriangulation	Adds a point to the list of points to be triangulated (only used when renderAsTriangles() is enabled)
attribute	Returns the attribute to use for the renderer.
categories	Returns the classification categories used for rendering.
checkLegendItem	param key:
clone	rtype: QgsPointCloudRenderer
copyCommonProperties	Copies common point cloud properties (such as point size and screen error) to the destination renderer.
create	Creates an RGB renderer from an XML element.
createLegendNodes	param nodeLayer:
defaultCategories	Returns the default list of categories.
drawPoint	Draws a point using a color at the specified x and y (in map coordinates).
legendItemChecked	param key:
legendRuleKeys	rtype: List[str]
pointXY	Retrieves the x and y coordinate for the point at index i.
pointZ	Retrieves the z value for the point at index i.
renderBlock	param block:
restoreCommonProperties	Restores common renderer properties (such as point size and screen error) from the specified DOM element.
save	param doc:
saveCommonProperties	Saves common renderer properties (such as point size and screen error) to the specified DOM element.
setAttribute	Sets the attribute to use for the renderer.
setCategories	Sets the classification categories used for rendering.
type	rtype: str
usedAttributes	param context:
willRenderPoint	param pointAttributes:

addCategory(self, category: QgsPointCloudCategory)

Adds a category to the renderer.

See also

categories()

Parameters:

category (QgsPointCloudCategory) –

addPointToTriangulation(self, x: float, y: float, z: float, color: QColor | Qt.GlobalColor | QGradient, context: QgsPointCloudRenderContext)

Adds a point to the list of points to be triangulated (only used when renderAsTriangles() is enabled)

New in version 3.36.

attribute(self) → str

Returns the attribute to use for the renderer.

See also

setAttribute()

Return type:

str

categories(self) → List[QgsPointCloudCategory]

Returns the classification categories used for rendering.

See also

setCategories()

Return type:

List[QgsPointCloudCategory]

checkLegendItem(self, key: str, state: bool = True)

Parameters:

• key (str) –

• state (bool = True) –

clone(self) → QgsPointCloudRenderer

Return type:

QgsPointCloudRenderer

copyCommonProperties(self, destination: QgsPointCloudRenderer)

Copies common point cloud properties (such as point size and screen error) to the destination renderer.

create(element: QDomElement, context: QgsReadWriteContext) → QgsPointCloudRenderer

Creates an RGB renderer from an XML element.

Parameters:

• element (QDomElement) –

• context (QgsReadWriteContext) –

Return type:

QgsPointCloudRenderer

createLegendNodes(self, nodeLayer: QgsLayerTreeLayer) → List[QgsLayerTreeModelLegendNode]

Parameters:

nodeLayer (QgsLayerTreeLayer) –

Return type:

List[QgsLayerTreeModelLegendNode]

defaultCategories() → List[QgsPointCloudCategory]

Returns the default list of categories.

Return type:

List[QgsPointCloudCategory]

drawPoint(self, x: float, y: float, color: QColor | Qt.GlobalColor | QGradient, context: QgsPointCloudRenderContext)

Draws a point using a color at the specified x and y (in map coordinates).

legendItemChecked(self, key: str) → bool

Parameters:

key (str) –

Return type:

bool

legendRuleKeys(self) → List[str]

Return type:

List[str]

pointXY(context: QgsPointCloudRenderContext, ptr: str, i: int) → Tuple[float, float]

Retrieves the x and y coordinate for the point at index i.

pointZ(context: QgsPointCloudRenderContext, ptr: str, i: int) → float

Retrieves the z value for the point at index i.

renderBlock(self, block: QgsPointCloudBlock, context: QgsPointCloudRenderContext)

Parameters:

• block (QgsPointCloudBlock) –

• context (QgsPointCloudRenderContext) –

restoreCommonProperties(self, element: QDomElement, context: QgsReadWriteContext)

Restores common renderer properties (such as point size and screen error) from the specified DOM element.

See also

saveCommonProperties()

save(self, doc: QDomDocument, context: QgsReadWriteContext) → QDomElement

Parameters:

• doc (QDomDocument) –

• context (QgsReadWriteContext) –

Return type:

QDomElement

saveCommonProperties(self, element: QDomElement, context: QgsReadWriteContext)

Saves common renderer properties (such as point size and screen error) to the specified DOM element.

See also

restoreCommonProperties()

setAttribute(self, attribute: str)

Sets the attribute to use for the renderer.

See also

attribute()

Parameters:

attribute (str) –

setCategories(self, categories: Iterable[QgsPointCloudCategory])

Sets the classification categories used for rendering.

See also

categories()

Parameters:

categories (Iterable[QgsPointCloudCategory]) –

type(self) → str

Return type:

str

usedAttributes(self, context: QgsPointCloudRenderContext) → Set[str]

Parameters:

context (QgsPointCloudRenderContext) –

Return type:

Set[str]

willRenderPoint(self, pointAttributes: Dict[str, Any]) → bool

Parameters:

pointAttributes (Dict[str) –

Return type:

bool