Change boundary nature reserve / national park areas

[matthijsmelissen]

Render nature reserve / national park areas with a double uninterruped line,
like marinas are currently rendered.

• Resolves national_park on top of a road looks like an access restriction #69
• Resolves Nature reserve extents are unclear #563

[matthijsmelissen]

Before:

After:

[mboeringa]

I think it looks like an improvement, just not entirely sure with very small nature reserves though (of which for example the Netherlands has many)... Maybe a slightly less broad border could still achieve the desired result, while not clogging up the entire area for smaller features?

By the way, is it just a visual deception that the area inside of the reserve appears lighter than in the "before" image?, or do you lighten up the inside somewhat?

[matthijsmelissen]

I think it looks like an improvement, just not entirely sure with very small nature reserves though (of which for example the Netherlands has many)... Maybe a slightly less broad border could still achieve the desired result, while not clogging up the entire area for smaller features?

I require minimally 100 pixels before the boundary gets rendered. Do you think that's sufficient?

By the way, is it just a visual deception that the area inside of the reserve appears lighter than in the "before" image?, or do you lighten up the inside somewhat?

Must be an optical illusion.

[mboeringa]

I require minimally 100 pixels before the boundary gets rendered. Do you think that's sufficient?

OK, so this border doesn't get rendered on features if they are less than 100px across rendered? This means the old type of border is visible for smaller features? The 100px doesn't sound bad though, as threshold.

[matthijsmelissen]

This means the old type of border is visible for smaller features?

Not at the moment, do you think rendering such small nature reserves is useful?

[mboeringa]

Not at the moment, do you think rendering such small nature reserves is useful?

Well, I know there are what among Dutch biologists is called "postage-stamp" size nature reserves , sometimes not more than a single wet meadow field with clean groundwater influence and rare species, among more intensively used farmland.

Whether they deserve rendering is a bit arbitrary, but their botanic value can be high, even though small.

But I can't really answer that question, something for the tagging mailing list?

[matthijsmelissen]

I measure the minimum size in pixels, so as long a you zoom in enough, they should show up... Note that 100 pixels surface means an area of 10x10 pixels.

[pnorman]

I think we should be rendering them. Obviously not a name, but the boundary/fill.

[dieterdreist]

2014-10-19 21:40 GMT+02:00 Paul Norman [email protected]:

I think we should be rendering them. Obviously not a name, but the
boundary/fill.

I'd also render them, also with name, but zoom level and size-dependent. As
it was recently rejected to render the boundary=protected_area, we will not
have significance distinction besides "national" level and "reserve", so
we'll have to stick to size alone. For small patches of protected areas,
rendering a name could start as late as zoom 18.

[matthijsmelissen]

This PR does not change anything about name rendering. Names are already rendered depending on zoom level.

[matkoniecz]

As it was recently rejected to render the boundary=protected_area

#603 is not rejected

[matthijsmelissen]

Re-assigned to self to take comments into account.

[imagico]

Given the wide range of sizes of these areas it might be a good idea to make the upper zoom level limit of showing the semitransparent fill depend on size. There are quite a few nature reserves that have screen filling size already at much below z=13 and the fill can be very irritating then by distorting other colors.

[matthijsmelissen]

Superseded by #1147.

[matthijsmelissen]

just not entirely sure with very small nature reserves though (of which for example the Netherlands has many)..

I don't think we should render 'post stamp' nature reserves on high zoom levels. I don't think < 100px nature reserves are relevant on any zoom level. If you zoom in, they will show up automatically.

[matthijsmelissen]

Given the wide range of sizes of these areas it might be a good idea to make the upper zoom level limit of showing the semitransparent fill depend on size.

I agree, in #1147, which supersedes this issue, the semitransparent fill is not rendered on z10 and above.

[gravitystorm]

superceeded by #1147