{"id":1631,"date":"2018-06-28T15:06:35","date_gmt":"2018-06-28T15:06:35","guid":{"rendered":"https:\/\/wetransform.eu\/?post_type=news-and-events&p=1631"},"modified":"2022-07-28T08:40:45","modified_gmt":"2022-07-28T08:40:45","slug":"groovy-complete-network","status":"publish","type":"news-and-events","link":"https:\/\/wetransform.to\/de\/news-and-events\/groovy-complete-network\/","title":{"rendered":"It’s Groovy Week: Create complete networks with Nodes and Links"},"content":{"rendered":"

It's Thursday, or as we at wetransform (thanks to the influence of a certain Venezuelan on the team) call it, Juernes<\/a>! <\/p>\n

In this fourth installment of the Groovy Scripting week, we will tackle another non-trivial case: Building a complete network with nodes and links when your only input data was a bunch of spaghetti lines. This actually requires three scripts. It also shows in detail how to use priorities and other advanced features.<\/p>\n

Like the previous posts, note that this article assumes you have working knowledge of hale studio and know the terminology<\/a>.<\/p>\n

Thursday's Script: Create Nodes from Links and build out topology (Simon)<\/h2>\n

In many projects, we did not receive a fully consistent set of Nodes and Links from customers to create a complete Network, or there were no Nodes available at all.<\/p>\n

These three snippets extract the first and last Coordinates from each Link (LineString\/Curve) and then set up the Node objects, and then create bidirectional references.<\/p>\n

Collect Nodes and connected Segment IDs<\/h3>\n

This is a simple Groovy Retype function that uses the links as a source. The target does not matter, since no target objects are emitted. In this example, the segments are called vaarwegvakken<\/code>, and the IDs of these segments are stored in the field vwk_id<\/code>. This function needs to be executed first and should thus have the highest execution priority.<\/p>\n

This is the full script:<\/p>\n