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In England, when submitting applications for Countryside Stewardship Scheme woodland grants you are required to mark on a paper map, supplied by the authority, the woodlands that are to be included.

The requirements are very specific, they require a red outside boundary, with a yellow inside, as in the guidance notes that come with the maps. See the image below, where I have added the colour with felt tip pens.

enter image description here

For large estates with many scattered woodlands this can be very time consuming, and if you make a mistake in your colouring in, you really have to start all over again.

As I already have all the areas as polygons in vector shapefiles I have scanned the maps and georeferenced them into my QGIS project.

Is it possible to replicate this border style of red on the outside and yellow inside that?

I have tried adding another line style for the yellow, and making it wider, but of course this extends both sides of the red border.

enter image description here

I have found a similar question for ArcGIS Using directional shading on boundaries for cartographic effect in ArcGIS Desktop?

Martin Hügi
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2 Answers2

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Add two symbol layers to your polygons, and change both of them to Outline: Simple Line.

Set the Offset, width, and colours.

Ensure to set the 'Draw line only inside polygon'

It should give you something like this:

enter image description here

DPSSpatial_BoycottingGISSE
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  • That did it, thanks. I hadn't noticed you could scroll down in the 'Symbol layer type'. I had just found that I could do something nearly right using the 'Shapeburst fill' and playing around with the draw effects, but this is a much better solution as it gives me a solid yellow line. – Martin Hügi Sep 12 '17 at 17:18
  • @MartinHügi great!!! – DPSSpatial_BoycottingGISSE Sep 12 '17 at 18:01
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right below in your screenshot, give a positive offset

Elio Diaz
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