From d82dd95f8233cce8523a2ac77effd4386f357504 Mon Sep 17 00:00:00 2001 From: Martin Davis Date: Tue, 24 Dec 2024 09:39:11 -0800 Subject: [PATCH] Update overlay.md --- overlay/overlay.md | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/overlay/overlay.md b/overlay/overlay.md index 3f66b8c..d7e2a53 100644 --- a/overlay/overlay.md +++ b/overlay/overlay.md @@ -20,9 +20,14 @@ parent: Overlay -#### Solution -One answer suggests the standard Extract Lines > Node > Polygonize approach (although does not include the PIP parentage step). But a comment says that this does not scale well (Pierre Racine…). -Also links to PostGIS wiki: + + + + +**Solution** +One answer suggests the standard `Extract Lines > Node > Polygonize` approach (although does not include the PIP parentage step). But a comment says that this does not scale well (Pierre Racine…). + +See also PostGIS wiki: ### Count Overlap Depth in set of polygons @@ -46,16 +51,11 @@ Howver, this post indicates this approach might be slow for large datasets: - - ### Return only polygons from Overlay -### Compute Coverage from Overlapping Polygons - - #### Problem Reduce a dataset of highly overlapping polygons to a coverage (not clear if attribution is needed or not)