VegaSpec

viz.vega.VegaSpec

class VegaSpec[M](val rawSpec: Json, val mod: M, val sourceInfo: Option[SourceInfo] = ...)

Vega spec wrapper to generate typed accessors inferred from the JSON structure.

When created from a file via VegaPlot.relativeToSource/VegaPlot.projectRoot/VegaPlot.absolutePath or resource via VegaPlot.fromResource, this class tracks the source and automatically uses fresh content if it has changed since compilation. This ensures the output is always correct, even if the typed accessors are stale.

Value parameters

mod: The typed accessor object for modifications
rawSpec: The JSON spec as parsed at compile time
sourceInfo: Optional source tracking for staleness detection

Attributes

Graph
Supertypes: class Object

trait Matchable

class Any

Members list

Value members

Concrete methods

Apply modifications using lambda syntax: spec.build(_.title := "New")

If the source has changed, modifications are applied to the fresh content.

Attributes

Apply modifications directly: spec.buildWith(titleMod, widthMod)

If the source has changed, modifications are applied to the fresh content.

Attributes

Apply modifications, returning a new spec so they can be chained: spec.overlay(_.title := "New").build(...)

If the source has changed, modifications are applied to the fresh content. The returned spec carries the already modified JSON and no longer tracks the source, since re-reading it would discard these modifications.

Attributes

Apply modifications directly, returning a new spec so they can be chained: spec.overlayWith(titleMod).build(...)

This cannot be an overload of overlay: SpecMod is itself a function type, so a lambda like _.title := "x" matches both signatures and the call is ambiguous. Named like build/buildWith for the same reason.

Attributes

Concrete fields

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