DieussaertGeometryProcessor

processor.DieussaertGeometryProcessor(config, feedback=None)

Processor implementing the Dieussaert area-based alignment algorithm.

Unlike vertex snapping, this processor evaluates the overlap between thematic geometries and reference polygons. It decides per reference feature whether to include it fully, partially, or exclude it based on area-based thresholds.

Attributes

Name	Type	Description
processor_id	ProcessorID	The unique identifier for this processor (ProcessorID.DIEUSSAERT).

Methods

Name	Description
process	Coordinates the alignment process for single or multi-geometries.

process

processor.DieussaertGeometryProcessor.process(
    input_geometry,
    reference_data,
    relevant_distance,
    mitre_limit,
    correction_distance,
    **kwargs,
)

Coordinates the alignment process for single or multi-geometries.

If multi_as_single_modus is disabled, MultiPolygons are processed piecewise and merged afterward to ensure stability.

Parameters

Name	Type	Description	Default
input_geometry	BaseGeometry	The thematic geometry to align.	required
reference_data	AlignerFeatureCollection	The reference (target) dataset.	required
relevant_distance	float	The distance threshold for alignment decisions.	required
mitre_limit	float	Mitre limit for buffering operations.	required
correction_distance	float	Distance used for noise and sliver removal.	required
**kwargs	Any	Additional processor arguments.	{}

Returns

Name	Type	Description
	ProcessResult	The merged or single result of the alignment process.

Notes

The algorithm optimizes performance by splitting the input into an ‘inner’ and ‘outer’ zone. Only the ‘outer’ zone (near the boundaries) is evaluated against reference data.

graph TD
    Start[Input Geometry] --> Split[Split: Inner vs Outer]
    Split --> Query[Spatial Query Reference Data]
    Query --> OD[Process Open Domain]
    Query --> Ref[Process Intersecting Refs]
    OD --> Combine[Combine Results]
    Ref --> Combine
    Combine --> Post[Post-processing]
    Post --> End[ProcessResult]