@mosaicoo/svg-engine/optimize is a small, pluggable pipeline of pure
document-to-document passes that shrink and clean up an SVG. Every pass is
side-effect-free and worker-safe. Headless: no Angular Material/CDK.
Registry of passes: register(optimizer) → Disposable, get(id), the optimizers signal, and runPipeline(document, enabledIds?).
Register custom passes and run the pipeline programmatically.
Optimizer
The pass contract: id, name, optional description, order (lower runs first; default 100), defaultEnabled (default true), and a pure optimize(document).
Implement your own optimization pass.
runPipeline runs the enabled passes in ascending order. Pass an enabledIds
set to select specific passes; omit it to run every pass whose defaultEnabled
isn’t false. It returns a new document — or the original if nothing changed.
Round geometry/transform/style numbers to a fixed precision (default 3 dp), removing float noise like 0.30000000000000004.
dropDefaultsOptimizer
50
on
Drop presentation attributes equal to the SVG default (opacity:1, visibility:visible, …).
pruneEmptyGroupsOptimizer
—
on
Remove empty groups from the tree.
stripAuthoredTitlesOptimizer
80
off
Tell the exporter to omit the <title> emitted for named nodes (keeps metadata.name on the model; export-side only, reversible). Opt-in for production minification.
Wraps a full pipeline run as one undoable command (isDestructive: true), so optimizing inside an editor produces a single Ctrl+Z entry. No-op when the pipeline changes nothing.
