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Quiz! Difficulty: Hard. Make a recursive Clipper

sigtill
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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!

 

 

Best answer by geomancer

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.

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The real SigTill
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geomancer
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  • geomancerEvangelist
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  • April 19, 2021

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

sigtill
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  • sigtillContributor
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  • April 19, 2021
geomancer wrote:

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​ !

The real SigTill

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