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@tscircuit/runframe

tscircuit ⋅ View Examples

A React component that runs tscircuit inside a webworker and shows you the PCB, Schematic, 3D and other previews.

  • Automatically imports other snippets and libraries if imported
  • Runs inside webworker (doesn't block the main thread)
  • Converts typescript to javascript using babel

Usage

import { RunFrame } from "@tscircuit/runframe/runner"

const App = () => (
  <RunFrame
    fsMap={{
      "main.tsx": `
circuit.add(
  <resistor resistance="1k" />
)
`,
    }}
    entrypoint="main.tsx"

    // Listen to events
    onCircuitJsonChange={(circuitJson) => void}
    onRenderingFinished={({ circuitJson }) => void}
    onRenderEvent={(event) => void}
    onError={(error) => void}
  />
)

Using CircuitJsonPreview Directly

If you already have circuit JSON and just want to display it:

import { CircuitJsonPreview } from "@tscircuit/runframe/preview"

const App = () => (
  <CircuitJsonPreview
    circuitJson={myCircuitJson}
    // Optional props
    showCodeTab={false}      // Show/hide the code editor tab
    showJsonTab={true}       // Show/hide the raw JSON viewer tab
    className="h-screen"     // Container className
    headerClassName="px-4"   // Header className
    isFullScreen={false}     // Toggle fullscreen mode
    onToggleFullScreen={() => void}  // Fullscreen toggle callback
  />
)

The CircuitJsonPreview component provides:

  • PCB view with interactive component placement
  • Schematic view
  • 3D view
  • Bill of Materials (BOM) table
  • Circuit JSON viewer
  • Error display

Note: You should have tailwind installed in the parent project, this library works without installing tailwind but without the "css reset" things will look a bit off (e.g. you might see serif fonts), create an issue if that's cumbersome because we removed it to save 5kb

Development

File-Server Interaction with Edit Events

Edit events can be a complex to understand, because it can take some time for rendering to complete, edit events are applied for an approximate render before the circuit is fully rendered. The sequence diagram below can be used as a reference to understand how the edit events are applied and queued for rendering.

sequenceDiagram
    participant CLI
    participant FileServer as File Server
    participant BrowserRunframe as Browser Runframe
    participant Viewer as Schematic/PCB Viewer

    BrowserRunframe->>Viewer: Initial Circuit JSON

    Note over Viewer: Edit event created
    Viewer->>BrowserRunframe: onEditEvent
    Note over BrowserRunframe: newEditEvent._applied=false<br/>editEvents.push(newEditEvent)
    BrowserRunframe->>Viewer: editEvents={editEvents}

    BrowserRunframe->>FileServer: /files/get manual-edits.json
    FileServer-->>BrowserRunframe: manual-edits.json content

    Note over BrowserRunframe: Apply edit events to manual-edits.json<br/>Mark editEvent._applied = true

    BrowserRunframe->>FileServer: /files/update manual-edits.json
    FileServer->>CLI: FILE_UPDATED event

    Note over CLI: Update manual-edits.json on filesystem

    rect rgb(200, 230, 255)
        Note over BrowserRunframe: Start re-render

        Note over Viewer: Edit event created
        Viewer->>BrowserRunframe: onEditEvent
        Note over BrowserRunframe: newEditEvent._applied=false<br/>editEvents.push(newEditEvent)
        BrowserRunframe->>Viewer: editEvents={editEvents}<br/>both unapplied & applied<br/>edit events are sent

        Note over BrowserRunframe: Render complete
    end

    Note over BrowserRunframe: Remove all applied editEvents

    BrowserRunframe->>Viewer: editEvents={editEvents}<br/>circuitJson={circuitJson}<br/>Send unapplied editEvents list<br/>+ Circuit JSON

    Note over BrowserRunframe: If there are unapplied editEvents, repeat
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