Build a renderer-agnostic graph model from a parsed pipeline

Converts a parse_pipeline() result into a graph of nodes and edges, classifying each step, rendering its arguments as code, generating a plain-language description, and propagating the feature-stream state (CRS, geometry type, field schema, validity, ordering) along the pipeline.

Usage

pipeline_graph(x, contract = gdalviz_contract(), merge_repeated = TRUE)

Arguments

x

A gdalviz_pipeline (from parse_pipeline()) or a string/path accepted by read_gdalg().

contract

A gdalviz_contract.

merge_repeated

Merge runs of 3+ consecutive identical commands (e.g. the one-field-at-a-time set-field-type chains needed for schema overrides) into a single stacked node. Defaults to TRUE.

Value

A gdalviz_graph: a list with nodes and edges tibbles.