Image Export Demo
This demo shows how to export the whole diagram or a part of it to a PNG image.
Things to Try
- Press Export and export the graph as PNG image.
-
Enable Export Rectangle Contents to export only the rectangle's region instead
of whole graph. Resize and move rectangle to control the region which will be exported.
- Explore the settings for scale and margin.
- Try to export the image using a Node.js server.
Details
The demo shows an approach that completely runs in the client's browser, as well as an
approach for a server-side export. The client-side export is supported by the latest
versions of all major browsers.
Server-side export
The server-side export is a minimal example of how to export the graph using an external
service hosted on a server. It shows the export via a Node.js express server using
headless Chrome/Puppeteer.
The server-side export button will be enabled, when the Node.js server is alive on loading
time of the demo. To run the server, see the respective readme in
./node-server/.