cesium-mcp

Instructions

Implementation Reference

• packages/cesium-mcp-bridge/src/commands/interaction.ts:9-24 (handler)

  The screenshot function captures the current Cesium viewer canvas as a base64 DataURL.

  export function screenshot(viewer: Cesium.Viewer): Promise<ScreenshotResult> {
    return new Promise((resolve) => {
      // 等待下一帧渲染完成
      viewer.scene.requestRender()
      const removeListener = viewer.scene.postRender.addEventListener(() => {
        removeListener()
        const canvas = viewer.scene.canvas
        const dataUrl = canvas.toDataURL('image/png')
        resolve({
          dataUrl,
          width: canvas.width,
          height: canvas.height,
        })
      })
    })
  }

• packages/cesium-mcp-bridge/src/types.ts:242-246 (schema)

  ScreenshotResult interface defining the shape of the screenshot output.

  export interface ScreenshotResult {
    dataUrl: string
    width: number
    height: number
  }