Question 1

How does Vnodes compare to Vue Flow for building diagrams?

Accepted Answer

Vnodes focuses on SVG-based graphs with dual-layer rendering for better cross-browser compatibility and custom HTML nodes, while Vue Flow offers more pre-built features for workflow diagrams. Vnodes is more flexible for unique visualizations, but Vue Flow might have a richer ecosystem for specific use cases like BPMN tools.

Question 2

How to add custom arrowheads to edges in Vnodes?

Accepted Answer

You can use traditional SVG markers defined in the #edges slot with CSS, or use the Marker.vue component for embedded markers with any SVG content. Marker.vue handles rotation and translation automatically, but it's more performance-intensive, so choose based on edge count and complexity.

Question 3

Is Vnodes compatible with Vue 3 and Composition API?

Accepted Answer

The README doesn't specify Vue version, but as a Vue component library, it likely supports Vue 2 and 3 with Options API. Check the npm package or GitHub for details, as some setups might require adjustments for Composition API or newer Vue features.

Question 4

Can Vnodes handle real-time updates to large graphs efficiently?

Accepted Answer

Vnodes leverages Vue's reactivity, but the dual-layer synchronization and embedded markers might slow down with frequent updates or hundreds of nodes. For performance, optimize with virtual scrolling, limit redraws, and consider using SVG markers over embedded ones in data-intensive scenarios.

Question 5

How to style nodes and edges in Vnodes without breaking layout?

Accepted Answer

Style nodes via CSS targeting .node .content classes, and edges with .edge classes, as nodes are HTML divs. Ensure styles don't interfere with synchronized transforms between layers—avoid absolute positioning or margins that could disrupt the dual-layer rendering system.

Question 6

What are the main breaking changes in Vnodes 2.0?

Accepted Answer

Vnodes 2.0 changed from foreignObjects to dual-layer rendering, fixing Safari issues and simplifying node layout. Templates now use separate slots for nodes and edges, and markers were revamped with a new Marker.vue component, requiring migration from older versions as detailed in CHANGELOG.md.

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