LDVMi – visualisation tool

What is LDVMi for?

Ever tried to visualise something from LOD cloud? Ever tried to combine your dataset with something from LOD cloud? Those are still not very easy tasks. Tell us, where your data are and we will offer you a list of possible visualisation pipelines we discovered. Our responsive visualisations could also be embedded to your CKAN  or other applications very easily (via an iframe)!

LDVMi is an implementation of the Linked Data Visualization Model. Our goal is to provide a platform, which would make it easier to consume Linked Data and combine your datasets with others to provide a meaningful visualisation in a few simple steps.

The tool allows you to register LDVM components (use LDVM vocabulary). Based on those components, visualisation pipelines could be assembled. You may either do that manually by uploading your pipeline to the system or run an algorithm called pipeline discovery, which tries to use all registered components and selected datasources to assemble a pipeline automatically using LDVM compatibility checking.

This project replaces an old tool called Payola, all valuable thoughts used to build it are about to be migrated to LDVMi.

What visualisations the tool offers?

LDVMi itself now implements the following visualisation techniques:

  • DataCube (line charts, bar charts, column charts, pie charts; slicing, multiple measures support, rotating the cube)
  • Google Maps (markers with labels and descriptions, facets)
  • OpenLayers (currently only WKT support for EPSG 4258, facets)
  • Hierarchies (D3: Zoomable partition layout, Zoomable sunburst, Zoomable PackLayout, …)

LDVMi demos

What has been used to build the platform?

The application is based on PlayFramework 2.3. Written in Scala and JavaScript. On the client side, AngularJS 1.x is involved heavily. Components are akka actors.

What are the most common use cases?

Private tool to work with RDF data.Company tool to work with internal RDF data.Public website with community around a specific type of RDF data.Company/government website to present RDF data to the public.

For more information visit product web page: http://www.ldvm.net

Here you can create the content that will be used within the module.