Skip to main content
  • EN

Quiz! Difficulty: Hard. Make a recursive Clipper

 

I want to clip 2000 partially overlapping areas with each other. And they are sorted and given a priority in the order they need to be clipped. Attached is an example workspace that uses text as a sample. Shown below are the result. The letter "F" is the first clipper, then "M", then "E" etc. Så every area/letter is behind the other one.

 

The attached workspace shows the approach.

 

How can I wrap the equal processes within the "New Bookmark" into a custom transformer that works recursively so I dont need to copy/paste these bookmarks x number of times.

 

Good luck!

 

 

Aren't you overcomplicating things?

I used an AreaOnAreaOverlayer writing the _count attribute to a list, a ListSorter to ensure list element 0 contains the lowest _count value, a ListIndexer to write the value of element 0 back to _count, and a Dissolver to merge the polygons on attribute _count.

Dissolved

Aren't you overcomplicating things?

I used an AreaOnAreaOverlayer writing the _count attribute to a list, a ListSorter to ensure list element 0 contains the lowest _count value, a ListIndexer to write the value of element 0 back to _count, and a Dissolver to merge the polygons on attribute _count.

Dissolved

This is exactly why I love this forum. Great answer to my solution and using completely different Transformers than I thought was needed. Thanks for a great solution @geomancer​ !

Reply


Community Stats

30,166
Posts
114,513
Replies
37,821
Members
Terms & ConditionsCookie settings
A product of
Safe Software respectfully acknowledges that we live, learn and work on the traditional and unceded territories of the Kwantlen, Katzie, and Semiahmoo First Nations.