Topology DSL

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Introduction

Topology

Topology, the study of surfaces, is a branch of mathematics concerned with spatial properties preserved under bicontinuous deformation (stretching without tearing or gluing); these properties are the topological invariants.

Further reading

https://en.wikipedia.org/wiki/Topology

Topology DSL

The Topology DSL implements D3.js a JavaScript library for manipulating documents based on data to generate the visualization of topology charts using as data topojson an extension of GeoJSON that encodes topology and all the required components to its visualization on ui. That topojson data already persists within the application therefore only a fix number of topology kinds are available as explained in the description of the semantic elements. The final result is a map with individual abilities. All the available options depends on the existing information in the corresponding topojson data.

The main semantic elements of the TopologyDSL are:

• package - The root element that contains all the other elements. A model can contain multiple packages.
• import declarations - Used to import external models or other Java classes.
• topology - The container for the implementation of the topology.
• title - Used as header for the ui component.
• Topology kinds: deu, esp, usa and world - The available kinds of topologies. Depending on this election the corresponding topojson data is used and individual configuration.
• zoomable - This flag allows the ability to zoom.
• partition - This flag allows the visualization of a fragmentation into countries in case of the selection 'world' and into states in case of on the other topologies.
• onClick - This flag allows the interaction with the user. The following selected option defines the information send by the click caused event.
• places - This flag allows the visualization of the corresponding cities.