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#1 2020-06-16 11:15:42

James787
Member
Registered: 2020-06-16
Posts: 11

Remove woodland graphics beneath an area of Water

Hi

If i place an area of water (like a pong or lake) over woodland, the woodland graphics show through beneath the water.
Is there a way to remove the background woodland graphics beneath the water to stop them showing through?

Thanks

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#2 2020-06-16 12:59:01

kocio
Administrator
From: Warszawa
Registered: 2013-09-04
Posts: 3,456
Website

Re: Remove woodland graphics beneath an area of Water

Could you paste an example link and image showing this problem?

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#3 2020-06-16 21:12:50

SK53
Member
Registered: 2009-01-11
Posts: 626

Re: Remove woodland graphics beneath an area of Water

This is a known artifact from the way in which the symbology of trees is overlaid on the green base colour of the wood. The various decisions made when introducing the overlay are documented extensively on github.

In most cases the solution, which is probably correct for many purposes is to make the water area an inner member of a multipolygon with the original wood polygon as the outer. (This isn't perfect because it makes it harder to find lakes & ponds in a wood, but meets most use cases).

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#4 2020-06-17 09:08:10

BCNorwich
Member
From: Norwich, Norfolk, UK
Registered: 2010-07-31
Posts: 150

Re: Remove woodland graphics beneath an area of Water

Hi James787, If this is the area you are concerned about (https://tinyurl.com/y8bc9pn8), then you need to add the overall forest area into a nested multipolygon. Please see here https://tinyurl.com/y8yzaow3

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