March 4, 20268 min read

How to Use the OmniCanvas Knowledge Graph to Discover Hidden Connections

How to Use the OmniCanvas Knowledge Graph to Discover Hidden Connections

What Is the Knowledge Graph?

The knowledge graph is a visual map of all your notes and the connections between them. Instead of browsing notes in a list or grid, the graph view shows every note as a node and draws lines between notes that are related.

It is one of the most powerful features in OmniCanvas because it surfaces relationships you might never find by browsing folders or scrolling through a list.

How Connections Are Detected

OmniCanvas automatically detects three types of connections between your notes:

Folder Connections

Notes that share the same folder are connected by dashed lines. This makes sense — if you filed two notes in the same folder, they are probably related. In the graph, folder connections show up as a cluster of nodes grouped around their shared folder.

Tag Connections

Notes that share one or more tags are connected by dotted blue lines. Tags are a more flexible way to connect notes than folders because a note can have many tags. If you tag three different notes with "product-launch," the graph draws lines between all three, showing you the cluster of ideas around that topic.

Content Connections

This is where the graph gets really interesting. OmniCanvas analyzes the actual words in your notes — including text on the canvas and inside sticky notes — and draws solid purple lines between notes with similar content. You can adjust the similarity threshold with a slider (1-10) to show more or fewer connections.

Content connections surface relationships you did not explicitly create. You might discover that your notes about a customer interview and your product roadmap brainstorm share significant vocabulary, suggesting a connection worth exploring.

Navigating the Graph

Zoom and Pan

Use the scroll wheel to zoom in and out. Click and drag the background to pan around the graph. When you have many notes, zooming out gives you a bird's-eye view of your entire knowledge base.

Click to Open

Click any node to open that note. This makes the graph a powerful navigation tool — instead of searching or browsing folders, you can visually explore your knowledge and jump to any note.

Drag to Rearrange

Drag individual nodes to reposition them. This is useful when the automatic layout places two related nodes far apart. Move them closer together to better reflect their relationship.

Hover to Highlight

Hover over any node to highlight it and all its connections. This instantly shows you every note related to the one you are hovering over, dimming everything else.

Using the Graph Controls

Filter by Edge Type

Toggle folder connections, tag connections, and content connections on and off independently. This helps you focus on one type of relationship at a time. For example, turn off folder and tag connections to see only content-based connections — these are often the most surprising and valuable.

Adjust Content Similarity

The similarity threshold slider controls how similar two notes need to be before the graph draws a content connection. A low setting (1-2) shows only very strong matches. A high setting (8-10) shows looser connections, which can surface unexpected relationships but also creates visual noise.

Start at the middle (5) and adjust based on what you see.

Filter by Folder

Use the folder filter to show only notes from a specific folder. This is useful when you want to focus on one area of your knowledge base, like a specific project or topic.

Search Within the Graph

The search bar in graph view highlights matching nodes and their connections. This is great for finding a specific note and then exploring what it connects to.

Practical Ways to Use the Graph

Weekly Knowledge Review

Once a week, open the graph view and zoom out to see your entire knowledge base. Look for:

  • Isolated nodes — Notes with no connections. These might need tags or might belong in a folder.
  • Dense clusters — Areas with many connections. These are your areas of deep knowledge.
  • Bridge nodes — Notes that connect two otherwise separate clusters. These are often your most valuable insights because they link different domains.

Research Synthesis

When researching a topic, create notes for each source and tag them with the topic name. Then open the graph view and filter by that tag. The content connections will show you which sources share ideas, helping you synthesize across sources.

Creative Exploration

When you feel stuck on a project, open the graph view and find your project notes. Then look at what other notes are connected to them — especially content connections. These unexpected links can spark new ideas.

Identifying Knowledge Gaps

Zoom out and look at the overall shape of your graph. Areas with few nodes and sparse connections represent topics you have not explored deeply. This can guide your learning and note-taking priorities.

Tips for a Better Graph

  • Tag consistently. The more consistently you tag, the more useful tag connections become.
  • Write descriptive notes. Content connections work better when your notes contain meaningful text, not just bullet points.
  • Don't force connections. Let the graph reveal connections naturally. Over-tagging or forcing notes into the same folder just to create connections defeats the purpose.
  • Revisit regularly. The graph becomes more valuable as your note collection grows. A graph with 10 notes is mildly interesting. A graph with 100 notes reveals genuine insights.

The knowledge graph is not just a visualization — it is a thinking tool. It shows you the shape of your knowledge and helps you find connections that linear browsing cannot.

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