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raygeo.cnc.execution.specs

CNC execution spec types.

AggregateGroup​

A group of inputs within an AggregateSpec.

Each group emits its own start/end markers, processes its inputs in order (optionally linking consecutive inputs when link_mode is Sequential), and supports per-input placement and scaling.

end_markers​

end_markers: list[Marker]

Markers emitted after this group's inputs.

inputs​

inputs: list[AggregateInput]

Upstream inputs to concatenate (in order).

link_mode: LinkMode

Inter-input linking control (default LinkMode.none()).

start_markers​

start_markers: list[Marker]

Markers emitted before this group's inputs.

AggregateInput​

A single source input in an AggregateGroup.

Identifies an upstream node by key and optionally applies a placement matrix and uniform scaling.

placement_matrix​

placement_matrix: list[list[float]]

4×4 placement matrix (row-major) applied to all points in the source Ops.

source_key​

source_key: str

Key of the upstream node whose Ops to consume.

target_dimensions​

target_dimensions: tuple[float, float]

Target dimensions for uniform scaling (width, height). When (0, 0) (default), no scaling is applied.

uid​

uid: str

Optional UID carried through for marker correlation (not used by the pipeline core).

AggregateOutput​

Result of the Aggregate stage.

Produced when the pipeline executes an AggregateSpec and contains the concatenated/transformed Ops together with an optional time estimate.

ops​

ops: ops.Ops

The concatenated Ops from all inputs in the aggregate.

ops_len​

ops_len: int

Number of commands in the aggregated Ops.

time_estimate​

time_estimate: Optional[float]

Estimated machining time in seconds, or None when the MachineParams rates are all zero.

AggregateSpec​

Configuration for the Aggregate stage.

An aggregate concatenates Ops from multiple upstream nodes, wraps them in markers (job/layer/workpiece start/end), applies per-input placement and scaling, optionally links consecutive inputs with travel moves, and applies batch transformers.

groups​

groups: list[AggregateGroup]

Groups of inputs, each processed in order.

machine​

machine: MachineParams

Machine parameters for time estimation.

transformers​

transformers: list[Any]

Batch transformers applied to the aggregated Ops.

wrap_end​

wrap_end: list[Marker]

Markers emitted after all groups (e.g. JobEnd).

wrap_start​

wrap_start: list[Marker]

Markers emitted before all groups (e.g. JobStart).

ComputePayload​

Opaque parameter bundle for a Compute stage node.

The pipeline's StageSpec.Compute stores this as an opaque Any — the CNC converter unpacks it during traversal.

assembler​

assembler: Any

The assembler spec (e.g. ContourSpec, AdaptiveClearingSpec).

state_source_keys​

state_source_keys: list[str]

Source keys for cleared-area state threading (CNC only).

transformers​

transformers: list[Any]

Optional list of transformer specs applied post-assembly.

EncodeSpec​

An encode-only compute stage.

The pipeline's generic StageSpec has no Encode variant — encoding is a CNC concern. Use EncodeSpec when you need to run an encoder through the pipeline.

encoder​

encoder: convert.Encoder

The encoder to use (e.g. GcodeSpec, VertexSpec).

source_key​

source_key: str

Key of the upstream node whose Ops to encode.

LinkMode​

Controls inter-input linking in an AggregateGroup.

Create via class methods: LinkMode.none() LinkMode.sequential(safe_z=2.0)

safe_z​

safe_z: float

Safe Z height for retract/lift moves (only meaningful when tag == "sequential").

tag​

tag: str

Discriminant: "none" or "sequential".

none()​

@classmethod none() -> LinkMode

Create a LinkMode with no inter-input linking.

ParameterTypeDescription
ReturnsLinkMode

sequential()​

@classmethod sequential(safe_z: float) -> LinkMode

Create a LinkMode that emits travel moves (retract → XY travel → plunge) between consecutive inputs.

ParameterTypeDescription
safe_zfloatZ height for retract and final lift.
ReturnsLinkMode

MachineParams​

Feed/speed rates used for time estimation.

All three fields default to 0.0, which disables the time estimate (returning None).

acceleration​

acceleration: float

Acceleration (mm/s²) for time estimation.

default_feed_rate​

default_feed_rate: float

Default feed rate (mm/min) for cutting moves.

default_rapid_rate​

default_rapid_rate: float

Default rapid rate (mm/min) for travel moves.

Marker​

Declarative markers for aggregate groups.

Each variant has a _tag field (always True) required by the stub generator; pass it as keyword argument:

Marker.JobStart(_tag=True) Marker.LayerStart(uid="my-layer", _tag=True) Marker.WorkpieceEnd(uid="my-wp", _tag=True)

JobEnd​

Marks the end of a job.

JobStart​

Marks the beginning of a job.

LayerEnd​

Marks the end of a layer with the given UID.

LayerStart​

Marks the start of a layer with the given UID.

WorkpieceEnd​

Marks the end of a workpiece with the given UID.

WorkpieceStart​

Marks the start of a workpiece with the given UID.