[ferret_users] overlay appears when I use polygon/modulo/lev=(...)(...)

To: ferret users <ferret_users@xxxxxxxx>
Subject: [ferret_users] overlay appears when I use polygon/modulo/lev=(...)(...)
From: Patrick Brockmann <patrick.brockmann@xxxxxxxxxxxx>
Date: Wed, 22 May 2019 17:53:20 +0200 (CEST)
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Thread-topic: overlay appears when I use polygon/modulo/lev=(...)(...)

Hi,

I would like to propose a simpler way to produce maps where cell boundaries are visible.

it uses the polygon command so not as mentionned inmentionned in polygon_modulo.jnl
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