photograph of the SVG appphotograph of the SVG app

This app supports rendering SVG using the OVE framework. It is based on Tuoris, a middleware for distributed SVG rendering. An installation of Tuoris is required to use the SVG app. More information on installing Tuoris can be found in the OVE installation guide.

The SVG app depends on an environment variable named TUORIS_HOST, that points to the URL at which the Tuoris instance runs.

Seen above is an image of the SVG app displaying the Les Misérables co-occurrence matrix diagram by Mike Bostok photographed at the Imperial College Data Science Institute’s Data Observatory.

Application State

The state of this app has a format similar to:

    "url": ""

Launching the App

All OVE applications can be launched using the Launcher UI, the Python Client Library, and the OVE APIs. The API used to launch an application is the same for all applications, but the data that is passed into it is application-specific.

To launch the SVG app and display an SVG using the OVE APIs:


curl --header "Content-Type: application/json" --request POST --data '{"app": {"url": "http://OVE_CORE_HOST:PORT/app/svg","states": {"load": {"url": ""}}}, "space": "OVE_SPACE", "h": 500, "w": 500, "y": 0, "x": 0}' http://OVE_CORE_HOST:PORT/section


curl --header "Content-Type: application/json" --request POST --data "{\"app\": {\"url\": \"http://OVE_CORE_HOST:PORT/app/svg\", \"states\": {\"load\": {\"url\": \"\"}}}, \"space\": \"OVE_SPACE\", \"h\": 500, \"w\": 500, \"y\": 0, \"x\": 0}" http://OVE_CORE_HOST:PORT/section

The SVG app has a transparent background. If required, a background colour of choice can be set using the Background Utility provided by OVE.

If the SVG app is used to display static SVGs no further controlling would be required after the SVG has been loaded. The app provides a controller that can used to control interactive SVGs.

Controlling the App

The controller of the app can be loaded by accessing the URL http://OVE_CORE_HOST:PORT/app/svg/control.html?oveSectionId=SECTION_ID.